CRUISE REPORT C234 Scientific data collected aboard SSV … · CRUISE REPORT C234 Scientific data collected aboard SSV Corwith Cramer Christiansted, St. Croix, USVI – Samana, Dominican

CRUISE REPORT

C234

Scientific data collected aboard

SSV Corwith Cramer

Christiansted, St. Croix, USVI – Samana, Dominican Republic – Port

Antonio and Discovery Bay, Jamaica – Key West, Florida, USA

31 March – 08 May, 2011

Reef survey and water quality assessment project in Samana Bay, Dominican Republic. Photo by Jeff Schell

Sea Education Association

Woods Hole, Massachusetts

Contact Information:

Dr. Jeffrey M. Schell

Sea Education Association

P.O. Box 6

Woods Hole, MA

02543

508-540-3954 (phone)

800-552-3633 (phone)

508-457-4673 (fax)

www.sea.edu

http://www.sea.edu/

Table of Contents C234

Table 1 Ship’s Company 2

Table 2 Calendar of Events 3-4

Cruise Track Description 4-6

Figure 1 Cruise track 7

Table 3 Summary of oceanographic sampling stations

8-9

Figure 2a-c Sea Surface conditions: temperature, salinity, chlorophyll-a fluorescence 10-11

Figure 3a-b Comparison of methods used to determine sea surface temperature 12

Table 4 Surface Station data 13-16

Figure 4a-d Surface current vectors for Southern Sargasso, Greater Antilles, Western

Caribbean, and Florida Straits regions

17-20

Figure 5 Cross-section plot of Florida Current transect. 21

Table 5 Hydrocast station data

22-25

Table 6 CTD station data 26

Figure 6a-c CTD cross-section plots: temperature, salinity, chlorophyll-a

fluorescence

27

Table 7 Neuston net station data 28-31

Table 8 Meter net station data

32-33

Table 9 Zooplankton 100 count data 34-37

Table 10 Dip net station data 37

Table 11 Shipek and Gravity Core station data 38

Table 12 Secchi disc station data 38

Table 13 Reef Survey station metadata 39

Table 14 Reef Survey coral cover quadrat data

40-41

Table 15 Reef Survey fish abundance data 42

Table 16 Reef Survey water chemistry data 43

Table 17 Student Research Topics 44

2

Table 1. C234 Ship’s crew and student participants

Nautical Staff

Beth Doxsee Captain

Rachel Greenough Chief Mate

Brian Barnes 2nd

Mate

Jeremy Dann 3rd

Mate

Rick Hamilton Engineer

Maggie Lyons Stewards

Ashley Meyer Deckhand

Scientific Staff

Jeff Schell Chief Scientist

Maia Theophanis 1st Scientist

Juliette Alla 2nd

Scientist

Dave Murphy 3rd

Scientist

Academic Staff

Carl Herzog Maritime Studies Professor

Matthew McKenzie Maritime Studies Professor

Rick Jones Visiting Scholar – Vassar College

Science Illustration

Joy Stanistreet Visiting Scholar – NOAA Marine

Mammal acoustics

Renee McDonald Scientific Observer (Jamaica)

Students

Benjamin Agsten Oberlin College

Christopher Bowman Albion College

Brianna Carrier Syracuse University

Rebecca Ebner Barnard College

Elizabeth Howser Franklin and Marshall College

Ian Huber Hendrix College

Kelly Malloy Western Washington University

Lucas Meyer Denison University

Kate Moreau University of Rhode Island

Cara Murray Boston College

Zoe Muzyczka Smith College

Lucy Nelson Colorado Christian University

Katherine Rice Colorado College

Mariana Riquelme Northeastern University

Rebecca Samley Boston College

Elizabeth Schneider University of Rhode Island

Nalyse Seymore Franklin and Marshall College

Kaitlin Tebeau Kenyon College

3

Table 2. C234 Calendar of Events

DATE (2011) PORT OF CALL EVENT

31 March St. Croix Embark Students, Begin Orientation

01 April Depart St. Croix Watch Bill Assignments / Safety Drills

03-07 April Creature Feature Presentations

08 April NS and OC Safety Checklist due, Natural History

Illustration due

10 April Arrive Samana, Dominican

Republic

11 April Field Trip: Los Haitises National Park / EcoMar

Whale Museum / Mrs. Mabel Phipps English class /

Pablo Pedro baseball game.

12 April Field Trip: Agriculture Tour, Playa de Rincon

Beach Clean-up / Iguanario Tour

13-14 April Reef & Beach Surveys / Nutrient Analyses

15 April Depart Dominican Republic

Watch Change and begin Phase II

17 April NS and OC Skills Checklist due, Natural History

Illustration due

21 April Arrive Port Antonio, Jamaica

22 April Field Trip Options: Rio Grande Valley natural

history hike - or – Maroon Community/UNESCO

World Heritage site visit

23-24 April Reef & Beach Surveys / Nutrient Analyses

25 April (AM)

(PM) Depart Port Antonio

Embark Univ West Indies students (4)

Oceanography Presentations

UWI research collaborations

26 April (AM) Arrive Discovery Bay

(PM) Depart Jamaica

Field Trip: DB Marine Lab and Snorkel Trip

Disembark UWI & TNC participants (4)

4

28 April Watch Change and begin Phase III

29 April Final Sheet Anchor and Natural History Illustration

due

30 Apr - 05

May

Change Paper Presentations and Papers due

OC Papers due

06 May Arrive Key West, USA

08 May Disembark Students

Data Description C234

The cruise track for C-234 (Figure 1) departed from Christiansted, St. Croix, USVI and finished in Key

West, FL, USA. During the nearly six week voyage we had two port stops; the first in Samana,

Dominican Republic and the second in Port Antonio, Jamaica which included a day stop in Discovery

Bay, Jamaica.

Our cruise track traversed several major oceanographic provinces (Figure 1): a) shelf and coastal waters

of the Leeward Islands including Barracuda Bank, b) the NW Atlantic Ocean or Sargasso Sea, including

Navidad Bank, c) the shelf and coastal waters of the Greater Antilles including Formigas Bank and the d)

Western Caribbean Sea.*

We collected data with 77 individual deployments from 52 discrete stations (Table 3) along our cruise

track. Comparison of the physical, chemical, biologic and geologic features of these regions represented

the major oceanographic theme of this sea semester.

1. Physical oceanographic studies focused on the distribution of surface and sub-surface (to 600 m)

water masses and the delineation of boundaries. Specifically, North Atlantic sub-tropical mode

water (18°C Water) was studied in relation to the phase of the North Atlantic Oscillation (NAO).

In addition, we conducted a comparison of sea surface temperature using historic (bucket

thermometer) and contemporary (electronic thermister from a seawater intake system)

instrumentation.

2. Chemical oceanographic studies focused on the geographic distribution of nutrients (phosphate

and nitrate), extracted chlorophyll-a, dissolved oxygen, and pH.

3. Biological studies focused on the geographic distribution of zooplankton, several meroplanktonic

larvae including lobster (phyllosoma), eel (leptocephali) and invasive lionfish larvae (Pterois

volitans).

5

4. Geological studies focused on paleo-tempestology using gravity cores collected in Samana Bay,

DR.

Sea surface temperature, salinity, fluorescence (chlorophyll-a and CDOM) and tranmissivity levels; along

with barometric pressure, winds, bathymetry, and geographic position were recorded continuously along

the cruise track.* Large scale surface hydrography is summarized with surface plots for some parameters

(Figure 2 a-c), other data is available upon request. Surface samples (68) of nutrients (phosphate and

nitrate), pH, and chlorophyll-a were collected routinely along the cruise track (Table 4).

Comparison of historical and contemporary methods for determination of sea surface temperature was

conducted routinely as part of the lab Hourly observations. Historical methods include surface water

collection using a bucket and measurements made with an alcohol thermometer and a YSI electronic

thermistor. Contemporary methods collect water with a thru-hull intake pump that collects water from 1-

3m below the sea surface depending on ship heel and measured temperature with an in-line electronic

thermistor. Each measurement device was cross-calibrated before the cruise began. Contemporary

methods of sea surface temperature were consistently higher than historical methods (Figure 3a-b). This

difference may be associated with conductive heat transfer along the seawater intake piping before water

reaches the temperature sensor in the on-deck lab.

But for the occasional eddy and our crossing of the Florida Current, surface currents along the C234

cruise track were weak (< 500mm/s, or 1.0 knot) and variable in direction. Regional views of surface

currents highlight the presence of eddies and meanders near constricted island passages, atop shallow

banks, and associated with regional currents (Figures 4a-d). The only sub-surface currents of note

occurred as part of the Florida Current (Figure 5).

The density structure, dissolved oxygen, extracted chlorophyll-a and pH profiles of the water column

(maximum depth 600m) were determined using a 12 bottle carousel package with attached CTD sensor (8

stations, Table 5). Additional in situ sensors included chlorophyll-a fluorescence, CDOM, transmissivity

and PAR. Additional deployments of a free standing CTD were also conducted (11 stations, maximum

depth of 1100 m, Table 6). Sub-surface water masses are revealed with a cross-section plot along the

cruise track (Figure 6a-c).

Surface plankton assemblages along with the floating macrophyte Sargassum spp., marine debris and tar

balls were sampled regularly with a neuston net (34 stations, 335 µm mesh, Table 7). Plankton

assemblages at discrete depths were collected using a 1-meter diameter circular net (12 stations, 335 μm

mesh, Table 8). Targeted depths ranged from 25m to 200m. In addition, vertical and horizontal

distribution patterns of myctophids (lantern fish), the marine insect Halobates, eel (Leptocephali) and

spiny lobster (Phyllosoma) larvae, and fish larvae were studied in relation to environmental characteristics

(Table 7 and 8). Zooplankton diversity and taxonomic composition was examined for all nets (Table 9).

Discrete samples of Sargassum clumps were collected with a dip net (3 stations, 335 µm mesh, Table 10).

Shrimp and crab specimens were removed from collected clumps and used in behavioral experiments

designed to assess specimen association with floating marine debris. No additional information

concerning collected Sargassum clumps was recorded.

6

Two sediment samples were collected using a shipek grab from Navidad Bank and Samana Bay. Two

gravity core stations occurred in Samana Bay, and we attempted another gravity core in Discovery Bay,

though no sample was retrieved (Table 11).

Hydrophone listening stations occurred routinely to listen for migrating humpback whales along the St.

Croix to Dominican Republic leg of the cruise (10 stations). Station location and data is available upon

request from the Marine Mammal Passive Acoustics lab of the Northeast Fisheries Science Center

(NEFSC) in Woods Hole, MA.

Final scientific work conducted aboard ship included a couple of secchi disc deployments (Table 12) for

demonstration purposes only.

Additional CTD, CHIRP, ADCP and biological data not reported here are available on request through

Sea Education Association (SEA) and the Chief Scientist. The information in this report is not intended

to represent final interpretation of the data and should not be excerpted or cited without written

permission from SEA.

During each port stop we conducted 4 reef surveys to measure coastal water quality in relation to human

development of local watersheds. Reef surveys measured coverage of living reef, dead reef, and

macrophyte cover; abundance and diversity of fish and mobile invertebrates; water visibility, nutrients

(phosphate and nitrate), extracted chlorophyll-a, dissolved oxygen, and abundance of Escherichia coli

bacteria (Tables 13-16) and the toxic, dinoflagellate Gambeirdiscus (data available upon request).

As part of SEA’s educational program, undergraduates conducted independent oceanographic research

during the cruise. Project explored regionally, relevant topics in the disciplines of physical, chemical, and

biological oceanography (Table 17). Student research efforts culminated in a written report and public

presentation to the ship’s company. These papers are available on request from SEA.

* No scientific samples or data were collected or recorded in the Exclusive Economic Zones of Cuba or

Mexico.

Jeff Schell, Chief Scientist, C234

7

Figure 1. Final cruise track for C234 based on hourly (local time) positions. Regional oceanographic biomes (Leeward Islands,

Sargasso Sea, Greater Antilles, and Western Caribbean), and interesting bathymetric features (Barracuda Bank, Puerto Rico Trench,

Navidad Bank and Formigas Bank) surveyed during the cruise are shown, along with ports of call.

USA

CUBA

Key West

SamanaHAITI

JAMAICA Port Antonio

D.R.

ST.CROIX

BAHAMAS

P.R.

BANKS

A. Barracuda

B. Navidad

C. Formigas

A.

B.

C.

Sargasso Sea

Greater Antilles Leeward

Islands

Western

Caribbean

Puerto Rico

Trench

8

Table 3. Summary of oceanographic sampling stations for C234.

Station #

(C234-)

Date

(2011)

Time

(local +4

GMT)

Log

(nm)

Lat

(dec

Deg N)

Lon

(dec

Deg W)

Location Station Type

001 02-Apr 1120 72 18.05 -64.56 Leeward Islands NT

002 03-Apr 0218 119 18.38 -64.21 Baraccuda Bank MN

002 03-Apr 0340 121 18.34 -64.22 Baraccuda Bank NT

003 03-Apr 0742 130 18.37 -64.29 Leeward Islands CTD

004 03-Apr 1710 155 18.39 -64.77 Leeward Islands - Drake Passage DN

005 04-Apr 0000 178 18.67 -65.05 Leeward Islands NT

006 04-Apr 1005 215 19.33 -65.13 Sargasso Sea HCa

006 04-Apr 1030 215 19.32 -65.14 Sargasso Sea HCb

006 04-Apr 1215 216 19.31 -65.18 Sargasso Sea NT

007 05-Apr 0010 274 20.30 -65.36 Sargasso Sea MN


008 05-Apr 0730 304 20.71 -65.55 Sargasso Sea DN

009 05-Apr 1020 319 20.89 -65.78 Sargasso Sea CTD



011 06-Apr 1007 426 21.08 -67.50 Sargasso Sea HCa

011 06-Apr 1034 426 21.08 -67.51 Sargasso Sea HCb



013 07-Apr 1016 449 20.06 -68.42 Sargasso Sea CTD


014 07-Apr 1834 151 20.03 -68.78 Navidad Bank SG

016 07-Apr 2336 518 20.00 -68.90 Navidad Bank NT

017 08-Apr 1010 609 19.72 -68.89 Grearer Antilles HC

017 08-Apr 1151 569 19.71 -68.92 Grearer Antilles NT

018 09-Apr 0015 581 19.25 -68.91 Samana Bay MN

018 09-Apr 0135 581 19.20 -68.93 Samana Bay NT

019 09-Apr 0857 607 19.15 69.17 Samana Bay GC

020 10-Apr 0745 610 19.20 -69.33 Samana Bay - at anchor Reef Survey

020 13-Apr 1612 610 19.19 -69.34 Samana Bay - at anchor SG

022 14-Apr 1327 618 19.16 69.20 Samana Bay GC

023 15-Apr 0002 643 19.42 -69.11 Greater Antilles NT

024 15-Apr 1010 676 19.85 -69.47 Grearer Antilles CTD

024 15-Apr 1043 676 19.85 -69.48 Greater Antilles DN


025 16-Apr 0009 703 20.15 -69.91 Greater Antilles MN


026 16-Apr 0958 728 20.22 -70.44 Greater Antilles HC


027 17-Apr 0010 779 20.29 -71.45 Greater Antilles MN



028 17-Apr 1111 818 20.82 -71.86 Greater Antilles SD


029 18-Apr 0008 871 19.92 -72.10 Greater Antilles/Haiti Shelf MN

029 18-Apr 0116 872 19.89 -72.10 Greater Antilles/Haiti Shelf NT

9

030 19-Apr 0335 993 19.35 -73.96 Grearer Antilles CTD

030 19-Apr 0442 993 19.32 -73.98 Greater Antilles 2MN


032 19-Apr 2330 1073 18.35 -74.90 Greater Antilles CTD

032 20-Apr 0021 1073 18.33 -74.90 Greater Antilles/Navassa Shelf NT

033 20-Apr 0959 1136 18.69 -75.82 Greater Antilles CTD

033 20-Apr 1053 1136 18.66 -75.84 Greater Antilles/Formigas Bank NT

034 20-Apr 2155 1158 18.41 -75.96 Formigas Bank NT

034 20-Apr 2245 1158 18.36 -75.97 Formigas Bank MN

035 23-Apr 0821 1189 18.19 -76.46 Port Antonio - alongside Reef Survey

036 25-Apr 1403 1189 18.28 -76.46 Port Antonio NT

037 25-Apr 2050 1215 18.46 -76.86 Galenas Point CTD

037 25-Apr 2129 1217 18.45 -76.87 Galenas Point MN

037 25-Apr 2138 1215 18.45 -76.88 Galenas Point NT

038 25-Apr 2343 1219 18.42 -76.96 Oracabessa Bay CTD

038 26-Apr 0027 1220 18.45 -76.98 Oracabessa Bay MN

038 26-Apr 0030 1220 18.45 -76.98 Oracabessa Bay NT

039 26-Apr 0218 1223 18.46 -77.12 Ocho Rios CTD

039 26-Apr 0317 1227 18.46 -77.13 Ocho Rios NT

039 26-Apr 0317 1224 18.46 -77.13 Ocho Rios MN

040 26-Apr 0651 1238 18.48 -77.40 Discovery Bay, Jamaica NT

041 26-Apr 1136 1238 18.47 77.41 Discovery Bay, Jamaica GC

042 27-Apr 1112 1305 19.06 -78.60 Western Caribbean NT

043 28-Apr 0104 1359 19.06 -79.31 Western Caribbean MN


044 28-Apr 1532 1446 19.18 -80.33 Western Caribbean SD



050 05-May 2108 2244 24.03 -82.21 Navy Box NT

051 06-May 0010 2248 24.13 -82.15 Navy Box CTD

052 06-May 0409 2254 24.19 -82.11 Navy Box NT

Duplicate station numbers indicate multiple oceanographic deployments that either occurred concurrently in the same location

or were deployed sequentially in the same general location after the vessel was hove to. General Locations are categorized by

traditional oceanic biomes or significant geologic feature. Abbreviations for oceanographic equipment deployed are: NT –

neuston tow, DN – dip net, , MN – meter net, CTD – conductivity, temperature and depth profiler, HC – hydrocast with 12

Niskin bottles and CTD, SG – shipek grab, GC – gravity core, and SD – secchi disc.

10

Figure 2a-c. Surface water hydrography for C234. Oceanographic sensors secured during

passage through Cuban EEZ.

a. Temperature (seawater flow thru system with in-line thermistor)

b. Salinity

11

c. Chlorophyll-a fluorescence

12

Figure 3a-b. Comparison of sea surface temperature measurements during C234.

Seawater flow-thru system with in-line electronic thermistor is the current standard technique for measuring SST.

This was compared to historical methods of collection using a surface bucket, and measuring SST with either an

electronic YSI thermistor or alcohol thermometer.

Figure 3 b. Histograms of temperature anomalies.

Temperature anomalies based on Flow thru electronic thermistor minus Bucket YSI electronic thermistor reading

(blue bars); Flow thru electronic thermistor minus Bucket thermometer (red bars); and Bucket YSI electronic

thermistor minus Bucket thermometer (green bars). The black line denotes zero temperature anomaly.

24.0

26.0

28.0

30.0

0.0 200.0 400.0 600.0 800.0 1000.0 1200.0 1400.0 1600.0

Tem

per

atu

re (

oC

)

Taffrail Log (nm)

FlowThru Temp (oC)

Bucket YSI Temp (oC)

Bucket Thermometer Temp (oC)

0

20

40

60

80

100

120

140

-1.50 -1.30 -1.10 -0.90 -0.70 -0.50 -0.30 -0.10 0.10 0.30 0.50 0.70 0.90 1.10 1.30 1.50 More

Fre

qu

ency

Temperature Anomalies (oC)

FlowThru - YSI (oC)

FlowThru - Therm (oC)

YSI - Therm (oC)

Mean: +0.75

Mean: +0.60

Mean: +0.16

13

Table 4. Surface station location and surface sensor data for C234.

Station #

(C234)

Date

(2011)

Local Time

(+4 GMT)

Log

(nm)

Lat (dec

Deg N)

Lon (dec

Deg W)

Temp (°C) Salinity

(ppt)

SS-001 01-Apr 2125 26.1 18.17 -64.58 26.3 36.30

SS-002 01-Apr 0217 44.1 18.02 -64.57 26.2 36.34

SS-003 02-Apr 0405 49.4 18.13 -64.53 26.3 36.25

SS-004 02-Apr 1135 71.6 18.05 -64.57 26.3 36.29

SS-005 02-Apr 1818 86.0 18.16 -64.64 26.6 36.32

SS-006 02-Apr 1953 89.7 18.10 -64.65 26.4 36.30

SS-007 03-Apr 0348 120.9 18.34 -64.23 26.6 36.21

SS-008 03-Apr 1410 146.6 18.39 -64.58 26.4 36.28

SS-009 03-Apr 2044 168.0 18.50 -65.01 26.5 36.28

SS-010 04-Apr 0001 178.4 18.67 -65.05 26.4 36.28

SS-011 04-Apr 1239 216.3 19.30 -65.19 26.3 36.42

SS-012 04-Apr 1930 252.2 19.93 -65.27 26.1 36.20

SS-013 05-Apr 0157 278.3 20.26 -65.41 25.9 36.22

SS-014 05-Apr 0601 296.6 20.59 -65.48 25.9 36.56

SS-015 05-Apr 1025 318.9 20.89 -65.78 25.9 36.29

SS-016 05-Apr 1741 345.5 21.19 -66.20 26.0 36.29

SS-017 05-Apr 2058 361.2 21.35 -66.44 26.0 36.20

SS-018 06-Apr 0030 376.4 21.51 -66.66 25.9 36.24

SS-019 06-Apr 0520

21.28 -67.04 25.9 36.23

SS-020 06-Apr 1228 426.5 21.10 -67.57 26.2 36.12

SS-021 06-Apr 1730 438.4 20.99 -67.75 26.1 36.25

SS-022 06-Apr 2210 452.0 20.77 -67.87 25.9 36.38

SS-023 07-Apr 0009 458.7 20.65 -67.93 25.9 36.38

SS-024 07-Apr 0630 485.1 20.26 -68.22 26.1 36.14

SS-025 07-Apr 1215 500.0 20.03 -68.45 26.3 36.15

SS-026 07-Apr 1753 515.3 20.03 -68.77 26.3 36.16

SS-027 08-Apr 0001 518.5 19.98 -68.91 26.0 36.17

SS-028 08-Apr 0300 530.5 19.76 -68.87 26.0 36.23

SS-029 08-Apr 1157 568.9 19.71 -68.93 26.1 36.26

SS-030 09-Apr 0155 582.7 19.19 -68.94 26.0 36.18

SS-031 11-Apr 0602 597.5 19.24 -69.06 25.9 36.23

SS-032 11-Apr 1918 631.2 19.13 -69.15 27.0 36.10

SS-033 15-Apr 0009 642.7 19.41 -69.11 26.2 36.20

SS-034 15-Apr 1200 676.2 19.82 -69.49 26.6 36.25

SS-035 15-Apr 1745 686.9 19.93 -69.65 26.6 36.21

SS-036 15-Apr 2113 697.6 20.16 -69.76 26.5 36.21

SS-037 16-Apr 0145 704.6 20.10 -69.93 26.3 36.21

SS-038 16-Apr 0637 719.7 20.15 -70.21 26.1 36.19

SS-039 16-Apr 1145 728.0 20.19 -70.46 26.4 36.21

SS-040 17-Apr 0140 780.3 20.24 -71.47 26.4 36.13

SS-041 17-Apr 0500 795.8 20.47 -71.62 26.2 36.23

SS-042 17-Apr 1145 818.0 20.81 -71.88 26.8 36.02

SS-043 17-Apr 1908 840.3 20.45 -72.02 26.6 36.06

SS-044 18-Apr 0127 872.5 19.89 -72.10 26.9 35.87

SS-045 18-Apr 0503 882.0 20.01 -72.25 26.5 36.07

14

Station #

(C234)

Date

(2011)

Local Time

(+4 GMT)

Log

(nm)

Lat (dec

Deg N)

Lon (dec

Deg W)

Temp (°C) Salinity

(ppt)

SS-046 18-Apr 1819 951.6 19.93 -73.51 27.4 35.73

SS-047 18-Apr 2210 977.5 19.64 -73.78 27.1 35.79

SS-048 19-Apr 0205 991.6 19.40 -73.94 27.0 35.77

SS-049 19-Apr 0458 993.3 19.31 -73.98 27.0 35.77

031-HC

#13 19-Apr 1120 1017.0 18.92 -74.26 27.3 35.76

SS-050 19-Apr 1900 1051.1 18.64 -74.77 27.7 35.76

SS-051 20-Apr 0043 1073.6 18.32 -74.89 27.7 35.79

SS-052 20-Apr 0433 1101.2 18.43 -75.32 27.7 35.82

SS-053 20-Apr 1054 1135.5 18.66 -75.84 27.3 35.79

SS-054 20-Apr 1652 1146.6 18.68 -75.99 27.5 35.83

SS-055 20-Apr 2155 1158.0 18.41 -75.96 27.4 35.81

SS-056 21-Apr 0159 1168.9 18.25 -76.14 27.5 35.82

SS-057 21-Apr 0510 1185.6 18.26 -76.40 27.6 35.74

SS-058 25-Apr 1408 1189.4 18.28 -76.46 27.5 35.76

SS-059 25-Apr 2146 1215.0 18.45 -76.88 27.7 35.79

SS-060 26-Apr 0033 1219.8 18.45 -76.98 27.7 35.78

SS-061 26-Apr 0327 1223.6 18.46 -77.13 27.5 35.76

SS-062 26-Apr 0702 1238.4 18.48 -77.40 27.1 35.30

SS-063 27-Apr 1120 1305.6 19.07 -78.61 27.9 35.95

SS-064 28-Apr 0215 1358.9 19.16 -79.29 27.6 35.67

SS-065 28-Apr 2101 1477.1 19.38 -80.69 28.0 35.81

SS-066 29-Apr 2154 1600.0 19.97 -82.67 28.0 35.96

SS-067 05-May 2112 2244.0 24.03 -82.21 27.0 36.24

SS-068 06-May 0424 2253.6 24.18 -82.11 26.4 36.43

15

Table 4 continued. Surface station location and surface sensor data for C234.

Station #

(C234)

chl-a Fluor

(volts x30)

Chl-a

(µg/l)

CDOM Fluor

(volts)

Xmiss

(volts)

PO4

(µM)

NO3

(µM)

pH

SS-001 1127 0.164 49.5 3355 0.072 0.061 8.06

SS-002 1144 0.389 49.8 3331 0.689 0.521 8.07

SS-003 1143 0.064 50.2 3349 0.072 0.663 8.03

SS-004 1173 0.454 50.3 3362 0.095 0.435 7.99

SS-005 1295 0.070 49.6 3360 0.041 0.607 8.05

SS-006 1309 0.060 49.9 3371 0.090 0.544 8.06

SS-007 1457 0.101 50.8 3368 0.077 0.306 8.00

SS-008 1960 0.174 53.3 3337 0.086 0.241 8.03

SS-009 1927 0.058 53.9 3360 0.050 0.413 8.01

SS-010 1959 0.074 52.3 3375 0.086 0.347 8.05

SS-011 2278 0.056 47.9 3370 0.000 0.198 8.07

SS-012 2530 0.040 99.1 3351 0.050 0.213 8.06

SS-013 2703 0.030 49.3 3365 0.050 0.122 8.06

SS-014 2859 0.062 48.4 3356 0.072 0.266 8.47

SS-015 1118 0.108 48.6 3372 0.059 0.284 8.02

SS-016 1217 0.058 48.1 3372 0.299 1.242 8.01

SS-017 1232 0.057 48.4 3371 0.104 0.372 8.08

SS-018 1295 0.023 48.7 3369 0.059 0.064 8.08

SS-019 1325 0.278 48.4 3371 0.109 0.054 8.02

SS-020 1362 0.059 48.8 3365 0.199 0.524 8.06

SS-021 1481 0.059 48.5 3360 0.054 0.587 8.06

SS-022 1554 0.066 47.8 3363 0.118 1.073 8.04

SS-023 1584 0.056 47.9 3361 0.131 0.865 8.05

SS-024 1665 0.059 48.5 3364 0.127 0.367 8.02

SS-025 1727 0.067 47.8 3352 0.131 1.111 8.04

SS-026 1981 0.113 50.9 3341 0.086 0.445 8.07

SS-027 2122 0.081 52.4 3348 0.081 0.537 8.03

SS-028 2184 0.053 48.1 3351 0.086 0.334 8.07

SS-029 2438 0.094 47.2 3337 0.068 0.458 8.06

SS-030 2853 0.094 50.6 3339 0.186 0.602 8.02

SS-031 2955 0.063 50.2 3339 0.086 0.572 8.02

SS-032 5290 1.023 68.6 3226 0.236

8.04

SS-033 839 0.314 50.1 3301 0.080

8.05

SS-034 779 0.153 47.9 3294 0.259

7.99

SS-035 846 0.072 48.2 3284 0.089

7.99

SS-036 853 0.054 48.9 3283 0.113

8.04

SS-037 823 0.042 48.4 3285 0.047

8.00

SS-038 798 0.080 48.6 3294 0.052

8.03

SS-039 734 0.048 47.6 3293 0.061

8.00

SS-040 794 0.076 49.2 3285 0.070

8.03

SS-041 800 0.041 48.2 3281 0.004

8.03

SS-042 776 0.043 49.3 3273 0.000

8.02

SS-043 851 0.060 49.8 3263 0.155

8.04

SS-044 896 0.080 52.5 3249 0.085

8.06

SS-045 923 0.047 51.3 3243 0.047

8.08

16

Station #

(C234)

chl-a Fluor

(volts x30)

Chl-a

(µg/l)

CDOM Fluor

(volts)

Xmiss

(volts)

PO4

(µM)

NO3

(µM)

pH

SS-046 1114 0.059 50.9 3213 0.033

8.03

SS-047 1185 0.104 51.4 3214 0.099

8.07

SS-048 1228 0.087 52.2 3211 0.066

8.04

SS-049 1306 0.061 51.8 3509 0.132

8.00

031-HC #13 1502 0.141 51.4 3176 0.061 0.233 7.97

SS-050 684 0.050 48.7 3209 0.023

8.03

SS-051 682 0.133 48.7 3188 0.023

8.03

SS-052 681 0.050 49.5 3179 0.033

8.04

SS-053 658 0.225 49.4 3146 0.052

7.99

SS-054 673 0.076 48.3 3157 0.066

8.08

SS-055 695 0.063 48.7 3147 0.061

8.04

SS-056 691 0.064 49.7 3139 0.061

8.05

SS-057 696 0.072 50.0 3131 0.066

8.05

SS-058 690 0.174 53.2 3169

SS-059 671 0.064 51.1 3240

SS-060 678 0.071 25.1 3236

SS-061 681 0.067 51.4 3232

SS-062 1112 0.264 65.0 3155

SS-063 725 0.250 50.6 3158

SS-064 871 0.173 52.0 3145

SS-065 724 0.241 50.7 3218

SS-066 689 0.075 47.9 3199

SS-067 833 0.162 50.5 3029

SS-068 868 0.150 50.9 3185

Surface water samples were collected using a clean, seawater flow-thru system (intake ~ 1-3m depth) with in-line

temperature, salinity and in vivo chlorophyll-a, fluorescence sensors. Discrete water samples were collected for

dissolved oxygen using Winkler titrations; phosphate (PO4) and nitrate (NO3) analysis, measured by colorimetric

analysis with an Ocean Optics Chem2000 digital spectrophotometer; and extracted chlorophyll-a (Chl-a)

concentrations, measured with a Turner Designs Model 10-AU Fluorometer following methods outlined in Parsons,

Maita and Lalli, A Manual of Chemical and Biological Methods for Seawater Analysis, Pergamon Press 1984.

Chlorophyll-a samples were filtered through 0.45 µm filters. Seawater pH was determined using the indicator dye

m-cresol purple and spectrophotometric measurement. A blank space indicates that no sample was collected for that

analysis.

17

Figure 4a. Surface current vector plot for the southern Sargasso Sea region during C234. Note, 500 mm/s is approximately 1.0

knot. Sub-surface currents are weak to negligible throughout these regions. Variability in current direction are suggestive of meso-

scale (10-100s nm radii) eddies and meanders associated with the ephemeral Antilles Current. The weak circulation over Navidad

Bank may support retention of larval and juvenile stages of reef fish and invertebrate species.

Eddies & meanders

associated with

Antilles current

Navidad

Bank

18

Figure 4b. Surface current vector plot for the eastern portion of the Greater Antilles region during C234. Note, 500 mm/s is

approximately 1.0 knot. Current magnitudes greater than 1 knot were consistently associated with some bathymetric constriction such

as an island passage, shelf or shallow bank suggestive of either wind-driven circulation dominating the event or tidal flow.

Formigas Bank

Navassa

Island

Windward

Passage

19

Figure 4c. Surface current vector plot for the Western Caribbean region during C234. Note, 500 mm/s is approximately 1.0

knot. Sub-surface currents remained weak to negligible throughout this region. Variability in current direction are suggestive of meso-

scale (10-100s nm radii) eddies and tidal flow associated with confluence of flow organizing into the Caribbean Current.

Eddies of

Caribbean

Current

Eddies of

Caribbean

Current

Eddies of

Caribbean

Current

20

Figure 4d. Surface current vector plot for the Florida Straits during C234. Note, 2000 mm/s is approximately 4.0 knots. In

contrast to the earlier part of the cruise track the Florida Current was easily discernible as a surface current and was used to great

advantage to make our way toward Key West.

Florida

Current

crossings -

#1#2

#3

21

Figure 5. Cross-section plot of the Florida Current for C234. Note, 2000 mm/s is approximately 4.0 knots.

Florida Current

crossings - #1 #2 #3

#1 #2#3

22

Table 5. Hydrocast station data for C234. Physical characteristics of the water column were measured with a Seabird SEACAT Profiler Model SBE

19plus Conductivity-Temperature-Depth unit and four attached sensors: transmissivity (SN- CST-143PR), CDOM fluorometer (SN- WSCD-1258), chlorophyll-

a fluorescence (SN-2105), and PAR (SN-70187). Vertical profile data available upon request. Water samples were collected from 12 depths.

Station # (C234-)

General Locale

Date and Time

Bottle # Depth

(m)

O2 Winkle

(mL/L)

Chl-a

(µg/l)

pH Volt. 0 sensor Volt. 1

sensor

Volt. 2

sensor

Volt.3

sensor

Volt. 4

sensor

Volt. 5

sensor

13 0.0 2.31 0.049 8.06

Transmissivity CDOM X CHL-A PAR X

006b 12 25.3 3.44 0.058 8.07

Sargasso Sea 11 50.1 3.74 0.085 8.07

04-Apr 10 75.2 3.37 0.105 8.06

1005 9 99.5 3.60 0.183 8.04

8 150.1

7.98

7 199.0

6 200.3

7.92

5 299.6

4 299.9

7.90

3 399.5

2 400.2

7.80

1 500.0 7.73

13 0.0

0.056 8.08


011b 12 25.0

0.049 8.07

Sargasso Sea 11 50.1

0.059 8.07

06-Apr 10 75.2

0.083 8.25

1034 9 99.9

0.266 8.05

8 150.2 4.37

7.95

7 199.8

6 199.9 4.46

7.95

5 297.8

4 299.6 4.62

7.91

3 398.5

2 399.9 4.56

7.87

1 499.7 3.56 7.74

23

Station # (C234-)

General Locale

Date and Time

Bottle # Depth

(m)

O2 Winkle

(mL/L)

Chl-a

(µg/l)


sensor

Volt. 2

sensor

Volt.3

sensor

Volt. 4

sensor

Volt. 5

sensor

13 0.0

0.071 8.03


017 12 24.6

0.035 8.07

Sargasso Sea 11 49.6

0.072 8.06

08-Apr 10 75.3

0.129 8.06

1010 9 100.1

3.210 8.04

8 150.4 4.69

7.98

7 200.0

6 200.2 4.76

7.95

5 299.6

4 300.3 5.04

7.94

3 400.1

2 400.1 5.55

7.87

1 499.8 4.35 7.77

13 0.0

0.039 8.00


026 12 4.0

0.034

Greater Antilles 11 50.4

0.075

16-Apr 10 75.6

0.148

0958 9 100.2

0.173 8.02

8 150.5 4.99

7.79

7 200.0

6 200.6 4.27

7.88

5 299.6

4 300.4 4.93

7.78

3 400.0

2 401.4 4.67

7.77

1 499.4 4.11 7.70

24

Station # (C234-)

General Locale

Date and Time

Bottle # Depth

(m)

O2 Winkle

(mL/L)

Chl-a

(µg/l)


sensor

Volt. 2

sensor

Volt.3

sensor

Volt. 4

sensor

Volt. 5

sensor

13 0.0

0.058 8.03


028 12 3.8

0.117


0.095

17-Apr 10 75.5

0.240

1007 9 100.2

8.04

8 150.4 4.52

7.96

7 198.7

6 200.3 4.48

7.88

5 299.6

4 300.3 4.12

7.90

3 398.6

2 400.2 4.37

7.88

1 500.2 4.15 7.78

13 0.0 4.57 0.141 7.97


031 12 4.1

0.051


0.118

19-Apr 10 75.4

0.275

1120 9 100.4

0.484 7.98

8 150.2 3.20

8.01

7 199.9

6 200.7 2.89

7.90

5 299.9

4 300.7 2.67

7.84

3 399.5

2 400.1 2.30

7.74

1 500.0 2.13 7.73

25

Station # (C234-)

General Locale

Date and Time

Bottle # Depth

(m)

O2 Winkle

(mL/L)

Chl-a

(µg/l)


sensor

Volt. 2

sensor

Volt.3

sensor

Volt. 4

sensor

Volt. 5

sensor

13 0.0


042 12 3.6


27-Apr 10 75.4

1003 9 100.5

8 150.1 2.28

7 199.6

6 200.5 2.41

5 299.6

4 300.4 2.48

3 398.8

2 400.3 2.56

1 499.8 2.51

26

Table 6. CTD station data for C234. Physical characteristics of the water column were measured with a Seabird SEACAT Profiler Model SBE 19plus

Conductivity-Temperature-Depth unit and four attached sensors: transmissivity (SN- CST-143PR), CDOM fluorometer (SN- WSCD-1258), chlorophyll-a

fluorescence (SN-2105), and PAR (SN-70187). Vertical profile data available upon request.

Station

#

(C234)

Date

(2011)

Local

Time

(+4

GMT)

Cast

Depth

(m)

Locale Hydrocast or

free-CTD

Volt. 0 sensor Volt. 1

sensor

Volt. 2

sensor

Volt.3

sensor

Volt. 4

sensor

Volt. 5

sensor

003 03-Apr 0742 601 Leeward Islands CTD x x x x x x

006 04-Apr 1005 50 Sargasso Sea HC Transmissivity CDOM x CHL-A PAR x


009 05-Apr 1020 1100 Sargasso Sea CTD x x x x x x



013 07-Apr 1016 600 Sargasso Sea CTD x x x x x x

017 08-Apr 1010 650 Grearer

Antilles/Samana

HC Transmissivity CDOM x CHL-A PAR x

024 15-Apr 1010 1100 Grearer Antilles CTD x x x x x x

026 16-Apr 0958 600 Greater Antilles HC Transmissivity CDOM x CHL-A PAR x


030 19-Apr 0335 620 Grearer Antilles CTD x x x x x x


032 19-Apr 2330 600 Greater Antilles CTD x x x x x x

033 20-Apr 0959 700 Greater Antilles CTD x x x x x x

037 25-Apr 2050 100 Galenas Point CTD x x x x x x

038 25-Apr 2343 100 Oracabessa Bay CTD x x x x x x

039 26-Apr 0218 300 Ocho Rios CTD x x x x x x

051 06-May 0010 600 Navy Box CTD x x x x x x

27

Figure 6a-c. CTD cross-section plots for C234. Water

column structure of temperature, salinity, and chlorophyll-a. VG

gridding: X-axis 40, Y-axis 20. Location of North Atlantic Mode water

(18°C) is indicated as well as summer formation of salinity maximum

water, and developed deep chlorophyll-a maximum layer in the western

portion of the Greater Antilles.

28

Table 7. Neuston station data for C234.

Station

#

(C234-)

Date

(2011)

Local

Time

(+4

GMT)

Moon

Phase (%)

Temp

(°C)

Salinity

(ppt)

chl-a

Fluor

(volts

x30)

Tow

Area

(m²)

Distance

Method

(GPS /

T Log /

Flow)

Zoop

Biomass

(ml)

Zoop

Den

(ml/m²)

Locale

001 02-Apr 1120 1%, risen 26.4 36.3 1182.1 2193.6 GPS 3.6 0.0016 Leeward Islands

002 03-Apr 0340 0%, set 26.6 36.2 1455.3 1923.4 GPS 19.5 0.0101 Baraccuda Bank

005 04-Apr 0000 0%,set 26.4 36.3 1943.5 1973.6 GPS 14.5 0.0073 Leeward Islands

006 04-Apr 1215 1% risen 26.4 36.4 2246.6 2515.0 GPS 1.3 0.0005 Sargasso Sea

007 05-Apr 0133 1% set 25.9 36.2 2690.4 2305.6 GPS 8.0 0.0035 Sargasso Sea

009 05-Apr 1208 3% risen 26.0 36.3 1168.9 1833.2 GPS 1.7 0.0009 Sargasso Sea

010 06-Apr 0017 8% set 26.0 36.2 1282.0 1904.5 GPS 5.5 0.0029 Sargasso Sea

011 06-Apr 1221 8%, risen 26.2 36.1 1360.9 2244.9 GPS 3.5 0.0016 Sargasso Sea

012 07-Apr 0004 14%, set 25.9 36.4 1577.0 2340.4 GPS 14.0 0.0060 Sargasso Sea

013 07-Apr 1158 14%, set 26.3 36.2 1709.6 2560.0 GPS 2.0 0.0008 Sargasso Sea

016 07-Apr 2336 21%, set 26.1 36.1 2122.2 2591.4 GPS 36.0 0.0139 Navidad Bank

017 08-Apr 1151 21%, risen 26.1 36.3 2458.8 1955.3 GPS 2.5 0.0013 Greater antilles, Samana

018 09-Apr 0135 21%, set 26.0 36.2 2831.8 2247.9 GPS 10.0 0.0044 Samana Bay

023 15-Apr 0002 81%, risen 26.2 36.2 872.4 2401.4 GPS 2.0 0.0008 Greater Antilles

024 15-Apr 1144 90%, set 26.5 36.3 794.5 2625.4 GPS 2.0 0.0008 Greater Antilles

025 16-Apr 0126 96%, risen 26.3 36.2 823.4 2048.8 GPS 7.0 0.0034 Greater Antilles


027 17-Apr 0123 99%, risen 26.4 36.1 808.1 2249.1 GPS 6.0 0.0027 Greater antilles


029 18-Apr 0116 100%, risen 26.9 35.9 903.8 1265.8 GPS 10.5 0.0083

Greater Antilles/Haiti

Shelf

032 20-Apr 0021 92%, risen 27.7 35.8 781.8 1623.1 GPS 16.0 0.0099

Greater Antilles/Navassa

Shelf

033 20-Apr 1053 92%, set 27.3 35.8 656.8 2269.0 GPS 1.0 0.0004

Greater Antilles/Formigas

Bank

034 20-Apr 2155 92%, risen 27.4 35.8 695.1 3450.5 GPS 12.5 0.0036

Greater Antilles/Formigas

Bank

036 25-Apr 1403 46%, risen 27.5 35.8 704.9 1603.6 GPS 3.0 0.0019 Port Antonio, Jamaica

037 25-Apr 2138 46%, set 27.8 35.8 673.8 1380.3 GPS 16.0 0.0116 Galenas Point, Jamaica

29

Station

#

(C234-)

Date

(2011)

Local

Time

(+4

GMT)

Moon

Phase (%)

Temp

(°C)

Salinity

(ppt)

chl-a

Fluor

(volts

x30)

Tow

Area

(m²)

Distance

Method

(GPS /

T Log /

Flow)

Zoop

Biomass

(ml)

Zoop

Den

(ml/m²)

Locale

038 26-Apr 0030 38%, set 27.7 35.8 679.9 1676.5 GPS 10.5 0.0063 Oracabessa Bay, Jamaica

039 26-Apr 0317 37%, set 27.5 35.8 683.0 1953.1 GPS 24.0 0.0123 Ocho Rios, Jamaica

040 26-Apr 0651 37%, risen 27.0 35.4 838.5 1572.1 GPS 12.0 0.0076 Discovery Bay, Jamaica

042 27-Apr 1112 28%, risen 27.8 38.8 774.3 1844.7 GPS 11.0 0.0060 Western Caribbean

043 28-Apr 0204 26%, set 27.7 35.7 870.1 1426.0 GPS 22.0 0.0154 Western Caribbean



050 05-May 2108 5%, set 27.0 36.2 833.2 2691.6 GPS 39.0 0.0145 Navy Box

052 06-May 0409 10%, set 26.4 36.4 862.2 2514.3 GPS 91.0 0.0362 Navy Box

30

Table 7. Neuston station data for C234 continued.

Station #

(C234-)

Halo

(#)

Lepto

(#)

Phyllo

(#)

Mycto

(#)

Gelatinous

>2cm

(mL)

Nekton

>2cm

(mL)

Plastic

Pellets

(#)

Plastic

Pieces

(#)

Tar

(#)

Snatans

(g)

Sfluitans

(g)

NOTES

001 7 0 0 0 0.0 0.7 0 30 0 0 0 Turtle grass (1 g)

002 42 0 1 4 0.0 1.5 0 4 0 0 0 0

005 2 0 2 19 0.0 2.0 0 1 0 0 0 0

006 0 0 0 0 0.0 0.0 1 22 0 1 0 0

007 0 0 1 8 0.0 1.5 0 0 0 7 0 0

009 0 0 0 0 0.0 0.0 0 2 0 0 20 0

010 2 0 1 7 0.0 0.5 0 6 0 0 62 1 fish larva

011 0 0 0 0 0.0 0.0 0 3 0 0 16 5 fish larvae (0.5 mL)

012 2 3 5 20 1.0 2.8 0 2 0 0 150 1 fish larva (0.2 mL)

013 0 0 0 0 0.0 0.3 0 12 0 0 28 1 reef fish (0.5 mL)

016 1 0 0 0 0.0 0.0 0 0 0 0 6 28 fish/fish larvae

017 0 0 0 0 0.0 0.0 0 4 0 0 3 1 gram turtle grass

018 2 0 0 25 0.0 1.0 0 0 0 0 41

1 piece coastal seaweed,

10 cm long

023 0 0 0 5 0.0 0.0 0 1 0 0 0 1 gram turtle grass

024 2 0 0 0 0.0 1.0 0 9 0 0 75

nekton: 1 sargassum

crab, 1 sargassum

shrimp. *fish larave

removed*

025 0 1 0 2 0.3 0.0 0 8 0 0 2 0

026 0 0 0 0 0.0 0.5 0 17 0 0 6 10 fish larvae

027 0 12 0 0 0.0 0.0 0 2 0 0 2 Turtle grass (2g)

028 0 0 0 0 0.0 3.0 0 4 0 0 40 0

029 0 0 0 0 9.4 0.7 0 1 0 0 25 Turtle grass (28.7 g)

032 0 1 0 4 0.0 0.1 0 0 0 0 2 2 stomatopods

033 0 0 0 0 0.0 0.0 0 0 0 1 10 0

034 2 21 0 1 7.0 0.0 0 2 0 0 1 0

036 0 0 0 0 0.0 0.0 0 30 0 0 53 Turtle grass (89g)

037 3 0 0 1 0.0 0.6 0 3 0 8 14 0

038 0 0 0 0 2.6 0.0 0 7 0 0 0 Turtle grass (13g)

31

Station #

(C234-)

Halo

(#)

Lepto

(#)

Phyllo

(#)

Mycto

(#)

Gelatinous

>2cm

(mL)

Nekton

>2cm

(mL)

Plastic

Pellets

(#)

Plastic

Pieces

(#)

Tar

(#)

Snatans

(g)

Sfluitans

(g)

NOTES

039 0 0 0 0 0.0 1.5 0 2 0 0 807

Eel grass(132g); Turtle

grass(364g); Land plant

matter i.e.

leaves/twigs(190g);

green spongy algae(64g);

Turbinaires(20g)

040 0 0 0 0 195.0 16.5 0 1 0 0 0 0

042 42 0 0 0 0.0 0.5 0 57 0 0 22 0

043 22 0 0 18 2.0 2.6 0 5 0 0 10 0

045 84 0 0 13 60.0 0.8 0 11 0 0 6 0

048 24 0 1 6 4.4 1.5 0 3 0 0 19 0

050 14 0 0 33 0.0 25.0 0 20 0 14 400 0

052 76 0 0 59 1.5 26.5 0 75 0 60 225 0

Tow area was calculated using distance in meters between successive (every minute) GPS positions. Net opening was 1.0 m wide by 0.5 m tall with a net mesh

of 335 µm. Zooplankton density is recorded as wet volume displacement per tow area (ml/m2). Eel larvae (leptocephali), spiny lobster larvae (phyllosoma), and

Lantern fish (Family Myctophidae), were sorted from net contents and recorded as numbers caught per tow.

Micronekton, gelatinous micronekton, and plant material was removed using a 1 cm mesh sieve and biomass (ml) or length (cm) was recorded. Floating plastic

was also removed from net contents, sorted as pellets or pieces and recorded as numbers collected per tow. Floating tar was sorted from the nets contents and

recorded present or absent. Floating Sargassum weed was removed, identified to species and measured in grams using a spring scale. Qualitative description of

micronekton removed from the zooplankton biomass is provided, and when available biomass (ml) and length (cm) of specimens are recorded.

32

Table 8. Meter net station data for C234.

Station

#

(C234-)

Date

(2011)

Local

Time (+4

GMT)

Net Type

(1m / 2m)

Tow Type

(Oblique /

Discrete)

Tow

Depth

(m)

Tow

Volume

(m3)

Distance

Method (GPS

/ T Log /

Flow)

Locale Zoop

Biomass

(ml)

Zpl

Density

(ml/m3)

002 03-Apr 0218 1-MN Discrete 138 851 Flow Baraccuda Bank 23.5 0.0276

007 05-Apr 0010 1-MN Discrete 84 2018 Flow Sargasso Sea 51.0 0.0253

018 09-Apr 0015 1-MN Discrete 84 2115 Flow Samana bay 53.0 0.0251

025 16-Apr 0009 1-MN Discrete 98 1709 Flow Greater Antilles 38.0 0.0222


029 18-Apr 0008 1-MN Discrete 134 1493 Flow

Greater Antilles/Haiti

Shelf 52.0 0.0348


034 20-Apr 2245 1-MN Discrete 91 1768 Flow

Greater

Antilles/Formigas Bank 85.0 0.0481

037 25-Apr 2129 1-MN Discrete 32 1031 Flow Galenas Point, Jamaica

038 26-Apr 0027 1-MN Discrete 25 3248 Flow Oracabessa Bay, Jamaica

039 26-Apr 0317 1-MN Discrete 36 778 Flow Ocho Rios, Jamaica

043 28-Apr 0104 1-MN Discrete 156 731 Flow Western Caribbean 12.8 0.0175

Table 8. Meter net station data for C234 continued.

Station

#

(C234-)

Halo

(#)

Lepto

(#)

Phyllo

(#)

Mycto

(#)

Gelatino

us >2cm

(mL)

Nekton

>2cm

(#)

Plastic

Pellets

(#)

Plastic

Pieces

(#)

Tar

(#)

Fish

Larvae

(#)

Notes

002 1 0 0 0 0.0 1 0 15 0 0

Primarily pink crustaceans (shrimp?

euphausids?); some sand… (NOT included

in biovol), possibly acquired during

turnaround?

007 0 3 1 8 0.0 8 0 0 0 0

Pinkish orange biomass, mostly small

grainy looking, with some larger nekton

33

Station

#

(C234-)

Halo

(#)

Lepto

(#)

Phyllo

(#)

Mycto

(#)

Gelatino

us >2cm

(mL)

Nekton

>2cm

(#)

Plastic

Pellets

(#)

Plastic

Pieces

(#)

Tar

(#)

Fish

Larvae

(#)

Notes

018 0 2 2 6 2.0 2 0 0 0 31

Lots of krill/shrimp and fish larvae; also,

large pteropods, some phyllosoma and

leptocephalli

025 0 1 0 0 1.1 0 0 0 0 3

some linuche, a lepto; small zooplankton,

mostly pinkish

027 0 10 1 4 39.5 0 0 0 0 13

Tons of salps and a well-developed

phyllosoma (post stage 11?); Lots of pink

krill, some large pteropods, a heteropod

shell, lots of leptos, some fish larvae

029 0 0 2 0 1.5 1 0 0 0 4

Midnight MN off of the Haiti Shelf in

784m of water; high density biomass

030 0 6 1 7 0.3 5 0 11 0 27 No notes taken.

034 0 4 0 0 0.0 0 0 0 0 0

Lots of pink biomass, euphasids, copepods,

small stomatopods and a couple fish larvae

037

Sample not analyzed, collected for

University of West Indies visiting

collaborators

038



collaborators

039



collaborators

043 2 0 0 1 0.0 0 0 0 0 0 Biovolume is mostly pinkish brown

Meter nets (1 m diameter frame, 335μm mesh net) were towed at discrete target depth for ~ 30’ at 2 knots. Tow volume was calculated using an attached flow

meter and net area based on net diameter. Zooplankton density is recorded as wet volume displacement per tow area (ml/m3). Eel larvae (leptocephali), spiny

lobster larvae (phyllosoma), and Lantern fish (Family Myctophidae), were sorted from net contents and recorded as numbers caught per tow. Blank spaces

represents stations were no data was collected for that parameter. Qualitative description of micronekton removed from the zooplankton biomass is provided,

and when available biomass (ml) and length (cm) of specimens are recorded.

34

Table 9. Zooplankton 100 count station data for C234.

Station

Net

Type Time

Cnid

med Siph Cten Salp Pter Nud Het

Other

snails Ceph Poly Chae Cope

Gam

Amph

Hyp

Amph

Cr_

meg

Cr_

zoea

001 NT 1120 0 2 0 0 0 0 0 7 0 0 0 33 0 0 0 1

002 NT 0340 0 0 0 0 10 0 0 16 0 0 0 39 0 0 0 0

005 NT 0000 0 8 0 0 1 0 0 3 0 0 0 72 0 1 1 3

006 NT 1215 0 0 0 0 5 0 0 15 0 0 0 30 2 0 0 0

007 NT 0133 0 24 0 0 8 0 0 2 0 0 1 55 0 0 1 0

009 NT 1208 0 8 0 0 2 0 0 23 0 0 3 53 0 0 1 0

010 NT 0017 0 3 0 0 15 0 0 3 1 0 0 60 5 2 0 0

011 NT 1221 0 13 0 0 19 0 1 1 0 0 0 43 0 0 1 0

012 NT 0004 0 7 0 0 0 0 0 3 0 0 0 55 4 0 0 0

013 NT 1158 0 5 0 0 0 0 0 12 0 0 0 48 0 0 0 0

016 NT 2336 0 0 0 0 1 0 0 0 0 0 0 28 58 1 0 0

017 NT 1151 0 6 0 0 4 0 0 13 0 0 0 33 0 0 3 0

018 NT 0135 0 4 0 0 14 0 0 0 0 0 0 71 2 0 0 2

023 NT 0002 0 5 0 0 0 0 0 43 0 0 0 37 7 0 0 0

024 NT 1144 4 2 0 0 4 0 0 3 0 0 0 39 2 0 0 0

025 NT 0126 0 0 0 0 21 0 0 7 0 0 0 46 0 4 0 0

026 NT 1113 0 2 0 0 0 0 0 2 0 0 0 29 1 0 0 1

027 NT 0123 0 10 0 0 13 0 0 1 0 0 0 62 8 0 0 0

028 NT 1135 2 1 0 6 4 0 0 0 0 0 0 51 0 0 0 0

029 NT 0116 0 14 0 1 19 0 7 1 0 0 2 50 0 0 0 1

032 NT 0021 0 5 0 0 5 0 0 6 0 0 2 60 0 2 0 4

033 NT 1053 0 10 0 0 1 0 0 8 0 0 0 63 4 1 0 0

034 NT 2155 0 18 0 1 1 0 0 0 0 0 0 64 1 4 0 0

036 NT 1403 2 3 0 2 0 0 0 18 0 0 0 62 0 1 0 0

037 NT 2138 1 7 0 0 0 0 0 0 0 0 0 74 4 4 0 0

038 NT 0030 0 16 0 0 0 0 0 0 0 0 0 63 2 5 0 0

039 NT 0317 2 8 0 11 0 0 0 7 0 1 0 22 0 0 1 0

040 NT 0651 1 20 0 2 1 0 0 0 0 0 4 35 20 1 0 0

042 NT 1112 0 27 0 0 0 0 0 6 0 0 1 25 0 2 0 0

043 NT 0204 0 0 0 1 3 0 0 0 0 0 0 57 3 15 1 0

045 NT 2101 0 0 0 0 0 0 0 0 0 0 3 68 3 7 0 1

35

Station

Net

Type Time

Cnid

med Siph Cten Salp Pter Nud Het

Other

snails Ceph Poly Chae Cope

Gam

Amph

Hyp

Amph

Cr_

meg

Cr_

zoea

048 NT 2154 1 15 0 0 1 0 0 1 0 0 0 67 0 4 0 0

050 NT 2108 0 14 0 0 0 0 0 3 0 0 7 35 2 2 2 1

052 NT 0409 0 0 0 0 2 0 0 0 0 0 3 67 0 3 0 0

Meter Nets

002 1-MN 0218 0 0 0 0 12 0 0 0 0 0 0 45 8 7 0 0

007 1-MN 0010 2 5 0 0 1 1 0 12 0 0 0 51 3 2 0 0

018 1-MN 0015 0 0 1 0 4 0 0 0 0 0 0 94 0 0 0 0

025 1-MN 0009 1 0 0 0 6 0 0 4 0 0 1 74 1 2 0 0

027 1-MN 0010 0 10 0 0 10 0 6 3 0 0 0 55 0 2 0 0

029 1-MN 0008 0 1 0 0 8 0 0 2 0 0 0 61 3 0 0 0

030 2-MN 0442 0 5 0 0 14 0 1 0 0 0 0 55 6 7 0 1

034 1-MN 2245 3 0 0 0 5 0 0 3 0 0 0 60 3 8 0 0

037 1-MN 2129 NA

038 1-MN 0027 NA

039 1-MN 0317 NA

043 1-MN 0104 0 0 0 0 1 0 0 1 0 0 3 79 0 0 0 1

Table 9. Zooplankton 100 count station data for C234 continued.

Station

Net

Type Time

Shr_

larv

Lob_

larv Mys Euph Stom Ostr Clad Iso

Fish

Larv

Fish

Eggs Oth Oth Oth

Total

#

Shannon-Weiner

Diversity Index

001 NT 1120 0 0 0 0 0 3 1 0 7 6 0 0 0 60 0.63

002 NT 0340 8 0 1 21 0 5 0 0 0 0 0 0 0 100 0.70

005 NT 0000 2 0 3 2 0 2 0 0 1 0 0 0 0 99 0.51

006 NT 1215 0 0 1 3 0 1 0 0 0 0 0 0 0 57 0.57

007 NT 0133 1 0 1 4 0 1 0 0 1 2 0 0 0 101 0.62

009 NT 1208 0 0 5 2 0 0 0 0 3 0 0 0 0 100 0.63

010 NT 0017 6 0 4 1 0 2 0 0 0 0 0 0 0 102 0.65

011 NT 1221 7 0 0 0 0 9 0 0 1 5 0 0 0 100 0.73

012 NT 0004 2 0 18 1 0 0 0 0 0 0 0 0 0 90 0.52

36

Station

Net

Type Time

Shr_

larv

Lob_


Fish

Larv

Fish

Eggs Oth Oth Oth

Total

#

Shannon-Weiner

Diversity Index

013 NT 1158 25 0 4 0 1 0 0 0 3 2 0 0 0 100 0.63

016 NT 2336 3 0 0 0 0 4 0 1 4 0 0 0 0 100 0.51

017 NT 1151 6 0 0 8 0 0 0 0 6 23 0 0 0 102 0.82

018 NT 0135 5 0 0 0 2 6 0 0 0 0 0 0 0 106 0.52

023 NT 0002 0 0 5 0 0 2 0 0 1 0 0 0 0 100 0.58

024 NT 1144 16 0 1 1 0 0 0 0 6 27 0 0 0 105 0.76

025 NT 0126 9 0 6 5 0 0 0 0 0 2 0 0 0 100 0.70

026 NT 1113 5 0 1 0 0 1 0 0 0 5 0 0 0 47 0.60

027 NT 0123 3 0 0 0 0 1 1 0 0 1 0 0 0 100 0.56

028 NT 1135 18 0 2 1 2 0 0 0 2 15 0 0 0 104 0.70

029 NT 0116 1 0 2 1 0 0 0 0 0 1 0 0 0 100 0.68

032 NT 0021 1 0 8 1 2 0 0 0 0 3 0 0 0 99 0.67

033 NT 1053 9 0 0 0 1 1 0 0 0 6 0 0 0 104 0.61

034 NT 2155 2 0 0 1 0 1 0 5 1 0 1 0 0 100 0.55

036 NT 1403 7 0 1 1 0 0 0 0 3 0 0 0 0 100 0.56

037 NT 2138 5 0 0 0 0 0 0 3 1 1 0 0 0 100 0.46

038 NT 0030 8 0 5 0 1 0 0 2 0 12 0 0 0 114 0.64

039 NT 0317 4 0 3 0 0 1 0 1 0 43 1 0 0 105 0.79

040 NT 0651 8 0 1 0 0 0 0 0 0 7 0 0 0 100 0.78

042 NT 1112 6 0 0 0 0 0 0 0 12 24 3 0 0 106 0.79

043 NT 0204 0 2 5 1 12 0 0 0 0 0 0 0 0 100 0.62

045 NT 2101 15 0 1 0 1 0 0 1 0 0 0 0 0 100 0.49

048 NT 2154 20 0 3 1 0 0 0 1 0 0 0 0 0 114 0.57

050 NT 2108 26 0 2 6 1 0 0 0 1 0 0 0 0 102 0.82

052 NT 0409 1 0 2 20 0 4 0 1 0 2 0 0 0 105 0.54

Meter Nets

002 1-MN 0218 9 0 5 14 0 0 1 1 1 1 0 0 0 104 0.78

007 1-MN 0010 8 0 0 6 0 4 0 0 0 0 0 0 0 95 0.71

018 1-MN 0015 3 0 2 0 0 8 0 0 0 0 0 0 0 112 0.29

025 1-MN 0009 3 0 5 3 0 0 0 0 0 0 0 0 0 100 0.48

027 1-MN 0010 3 0 3 2 0 0 0 1 0 4 0 0 0 99 0.70

029 1-MN 0008 1 0 6 0 0 17 0 0 1 0 0 0 0 100 0.56

37

Station

Net

Type Time

Shr_

larv

Lob_


Fish

Larv

Fish

Eggs Oth Oth Oth

Total

#

Shannon-Weiner

Diversity Index

030 2-MN 0442 4 0 0 3 0 2 0 0 1 1 0 0 0 100 0.70

034 1-MN 2245 6 0 3 2 1 6 0 0 1 0 0 0 0 101 0.69

037 1-MN 2129 NA

038 1-MN 0027 NA

039 1-MN 0317 NA

043 1-MN 0104 3 0 7 2 0 2 0 0 0 0 1 0 0 100 0.40

Abbreviations for zooplankton categories:

Cnid med – cnidarian medusa, Siph – siphonophore bracts and floats, Cten – ctenophores, Salp – salps and doliolids, Pter – pteropods, Nudi – nudibranch, Het –

heteropods, Other Snail – pelagic snails, Ceph – cephalopods, Poly – polychaetes, Chae – chaetognaths Cop – copepods, Gam Amp – gammarid amphipods, Hyp

Amp – hyperiid amphipods, Cr_meg – Crab megalopae, Cr_zoea – Crab zoea, Shr_larv – Shrimp larval stage, Lob_larv – lobster larval stage, Mys – mysids,

Euph – euphausiids, Stom (larv) – Stomatopod larval stage, Ost – ostracods, Clad – cladocerans, Iso – isopods, larval fish and fish eggs.

Table 10. Dip net station data for C234.

Date

(2011)

Local

Time (+4

GMT)

Temp

(deg C)

Salinity

(psu)

chl-a

Fluor

(volts

x30)

Collection Conditions / Notes

03-Apr 1710 26.3 36.24 2206.7 Two sargassum clumps collected for

shrimp/crab harvesting for student

project.

05-Apr 0730 25.9 36.41 1201.0 Nine sargassum clumps collected for

shrimp/crab harvesting for student

project.

15-Apr 1043 26.3 36.25 804.5 Several sargassum clumps collected

for shrimp collection, also processed

for Tracy Mincer from WHOI

38

Table 11. Sediment collections for C234.

Station

# (C234)

Date

(2011)

Local

Time

(+4

GMT)

Equipment Location Depth (m) Comments

014 7-Apr 1834 Shipek Navidad Bank 29 Demonstration purposes only - sample not

analyzed.

020 13-Apr 1612 Shipek Samana Bay at anchorage 22 Demonstration purposes only - sample not

analyzed.

019 9-Apr 0857 Gravity Core Samana Bay 63 Sample collected for student project on grain

size distribution for assessment of paleo-

tempestology. Data available upon request.

022 14-Apr 1327 Gravity Core Samana Bay 84 Sample collected for Dr. Jeffrey Donnelly -

sample not analyzed.

041 26-Apr 1136 Gravity Core Discovery Bay, Jamaica 39 Sample collected for Dr. Jeffrey Donnelly -

sample not analyzed.

Table 12. Secchi disc station data for C234.

Station

#

(C234)

Date

(2011)

Local

Time

(+4

GMT)

chl-a

Fluor

(volts

x30)

CDOM

Fluor

(volts)

Xmiss

(volts)

Cloud

Cover

(8ths)

Wave Ht/Wind

Sp (BF)

Secchi

Depth

(m)

Calculated

1% (m)

Locale

028 17-Apr 1111 784.3 49.8 3271.9 3/8 ExN 3'/ExS BF3 30.5 82 Greater Antilles

044 28-Apr 1532 1011.4 52.1 3107.9 2/8 4'/BF2 33.5 90 Western Caribbean

39

Table 13. Reef Survey metadata for C234.

Station ID Site # General Locale Date Time Depth

(m)

Secchi

Visibility

(m)

Temp

(°C)

Salinity

(psu)

LatDEC LonDEC

020 1 Land side of the causeway, near

the northwestern side of Cayo

Vigia

10-Apr 1145 0.9 0.9 27.3 35.2 19.197 -69.330

Samana Bay -

at anchor

2 Near the northeastern point of

Cayo Vigia

10-Apr 1102 2.2 2.2 27.4 35.3 19.195 -69.325

3 Northwest of Cayo Paloma 10-Apr 0745 2.6 2.6 26.9 35.2 19.193 -69.323

4 Slightly west of Punta Gorda,

close to the cliffs

10-Apr 1002 1.8 1.8 27.1 35.4 19.193 -69.315

5 Inside of causeway, attached to

mooring ball our farthest from

shore

12-Apr 1350 8.1 2.5 27.6 35.1 19.198 -69.335

6 30 ft from sea wall/beach on

leeward side of Samana harbor

12-Apr 1400 4.2 0.6 29.3 32.1 19.202 -69.337

035 1 West Harbor Port Antonio -

closest to shore

23-Apr 0821 1.4 1.4 nd nd 18.188 -76.460

Port Antonio -

alongside

2 West Harbor Port Antonio 23-Apr 1023 3.5 3.5 27 35.6 18.223 -76.577

3 West Harbor Port Antonio 23-Apr 1109 1.8 1.8 27.3 35.6 18.220 -76.547

4 West Harbor Port Antonio -

farthest from shore

23-Apr 1321 2.1 2.1 27.2 35.7 18.228 -76.545

40

Table 14. Reef Survey coral coverage data for C234.

Station ID Site # Rep

Quad-

rat

Living

Coral

Cover

Dead/

Bleach

Coral

Cover

Algae

Cover

Sand/

Shell

Cover

Invert (#) and

Types

Reef

Health

index

020 1 A 10 0 10 80 Sea plume, knobby

coral, yllw sea

whip

39.3

Samana - at

anchor

B 0 10 60 30 knobby coral

C 15 20 0 65 brain coral,

knobby coral

2 A 40 40 10 10 Black urchin,

knobby coral,

brain coral

89.1

B 70 20 0 10 starfish, black sea

urchin, knobby

coral, fire coral

C 80 10 0 10 sea plume, knobby

coral, black urchin

3 A 40 0 40 20 Sea star, sea

plume, golden

crinoid, elkhorn

50.1

B 5 90 0 5 golden crinoid,

black coral

C 40 10 40 10 pillar coral, sea

plume, golden

crinoid, golden

zooanthid

4 A 2 39 30 29 elkhorn, black

urchin, knobby

coral

36.8

B 10 50 0 40 black coral,

staghorn, knobby

coral, fire coral

C 40 20 5 25 sea plume, golden

crinoid, feather

hydroid, knobby

coral

41

Station ID Site # Rep

Quad-

rat

Living

Coral

Cover

Dead/

Bleach

Coral

Cover

Algae

Cover

Sand/

Shell

Cover

Invert (#) and

Types

Reef

Health

index

035 1 A 5 5 80 10 Knobby coral 49.9

Port

Antonio

B 0 30 60 10 Knobby coral

- alongside C 0 30 50 20 Knobby coral

2 A 0 0 80 20 conch shell 0

B 0 0 90 10 None

C 0 0 60 40 urchins (black

spined)

3 A 2 15 50 33 None 28.5

B 0 45 25 30 None

C 0 10 30 60 sea stars

4 A 5 65 20 10 Feather Hydroid,

Knobby Coral

25.7

B 10 70 15 5 Knobby Coral

C 3 80 12 5 Knobby Coral

Reef Health Index is an average metric based on proportions of different coral cover in each of the three replicate

quadrats (A, B, and C) surveyed at each Site #. Details of metric calculation are available upon request.

42

Table 15. Reef Survey fish abundance data for C234.

Station

ID

Site # Time

IN

Time

OUT

Fish

Abun

(#)

Fish Size

(cm):

Smallest

Fish Size

(cm):

Largest

Most Common

Fish

Bi-Color

Damsel-

fish

Black

Durgon

Blue

Ham-

let

Blue

Tang

Brown

Chromis

Butter-

fly Fish

Banded

Butter-

fly Fish

Four-

Eyed

Butter-

fly Fish

Reef

020 1 1145 1157 7 2 12 Brown Chromis 2 4

Samana

Bay

2 1102 1118 65 3 10 Brown Chromis 5 5 50 3

- at

anchor

3 0758 0809 25 6 14 Seargent Major 2 2 2 4

4 1002 1016 61 6 20 Black Durgon 30 9 1

035 1 0818 0830 11 3 18 Creole Wrasse

/Blue Hamlet

3

Port

Antonio

2 1023 1037 12 5 25 Reef Butterfly

Fish

3 6

- alongside

3 1139 1157 29 5 16 Squirrel Fish 7

4 1216 1230 84 2 15 Creole Wrasse 5

Station

ID

Site # Grunt

Tomta

te

Grunt

White

Parrot-

fish

Striped

Parrot-

fish

Yellow-

tail

Porcupine

Fish

Sand Diver Seargent

Major

Slippery

Dick

Squir

rel

Fish

Toba

cco

Fish

Wrasse

Clown

Wrasse

Creole

Wrasse

Yellow-

head

Un-

identi-

fied

020 1 1

Samana Bay

2 1 1

- at

anchor

3 3 10 2

4 5 15 1

035 1 2 1 1 1 3

Port

Antonio

2 1 2

-

alongside

3 2 2 15 2 1

4 7 2 20 50

43

Table 16. Reef Survey chemical analysis data for C234

Chemistry Bacteria

Station ID Site # PO4 NO3 D. O.

(mL/L)

Chl-a E. coli Coliform Possible

E. coli

Pseudomonas

sp.

Colorless

020 1 2.17 0.49 5.3 2.12 3 0 0 0 336

Samana Bay 2 1.52 0.17 5.1 1.54 0 1 4 0 205

- at anchor 3 0.10 0.16 4.9 0.49 0 2 0 0 8

4 0.10 0.15 5.0 1.04 1 2 0 0 63

5 nd 0.09 4.8 2.36 nd nd nd nd nd

6 nd 0.24 5.5 0.91 nd nd nd nd nd

44

Table 17. Student research topics for C234.

Title Author(s)

Ecosystem Health / Water Quality

Human activity and its effects on water quality and reef

health in the Caribbean

Zoe Muzyczka, Mariana Riquelme,

and Liz Schneider

The Quantitative Analysis of Tar Balls and Plastics in

the Sargasso and Caribbean Seas as it relates to the

health of Sargasso Shrimp

Chris Bowman and Ian Huber

Water Quality and the Distribution of Gambierdiscus

toxicus Along the C-234 Cruise Track

Rebecca Samley

Biodiversity / Fisheries

Distribution and Dispersal of Leptocephali Across the

Caribbean

Ben Agsten

The Distribution of the Spiny Lobster Larvae Panulirus

Argus throughout the Caribbean Sea

Kelly Malloy

Charismatic Megafauna in the West Indies:

Compilations of Routine and Opportunistic Sightings

Lucas Meyer, Lucy Nelson, and

Kaitlin Tebeau

Effect of reef health, and currents on the spread of the

larvae of invasive lionfish in the Caribbean

Kate Moreau

Geologic Setting

The Methodology of Grain-Size Analysis in Correlation

to Tropical Storms and Hurricanes

Elizabeth Howser and Nalyse

Seymore

Climate Connections

Sea Surface Temperature Instrumentation on Corwith

Cramer: The search for a correction factor

Rebecca Ebner and Katie Rice

Tracking 18° Mode Water with Regards to the North

Atlantic Oscillation and Climate Change

Cara Murray

Documents

CRUISE REPORT C234 Scientific data collected aboard SSV … · CRUISE REPORT C234 Scientific data collected aboard SSV Corwith Cramer Christiansted, St. Croix, USVI – Samana, Dominican