Invertebrate Predators

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Invertebrate Predators. L. Madin, E. Horgan, B. Sullivan, S. Bollens GLOBEC Georges Bank Science Meeting Nov. 19, 2003. Predation Mortality Calculation. Plot abundance maps per predator, depth, month, year. 5 standard regions, 3 depth ranges Add distribution of prey - PowerPoint PPT Presentation

Text of Invertebrate Predators

  • Invertebrate PredatorsL. Madin, E. Horgan, B. Sullivan, S. Bollens

    GLOBEC Georges Bank Science MeetingNov. 19, 2003

  • Large Predator Species (MOC 10)

    Abundance Rank

    Predator species

    Prey species

    Feeding Data

    1

    Pleurobrachia pileus

    Copepod, fish larvae

    Rates on copepods from gut contents (GLOBEC data), F and T responses (literature data)

    2

    Neomysis americana

    Copepods

    F response on copepods (literature data)

    3

    Themisto gaudichaudii

    Nauplii, copepods

    Rates on copepods, nauplii from gut contents (GLOBEC data), F,T responses (literature data)

    4

    Meganyctiphanes norvegica

    Copepods

    Rates on Calanus, Pcal. (GLOBEC and literature data)

    5

    Aglantha digitale

    Copepods

    Literature data

    6

    Euphausii krohnii

    Copepods

    Fish larvae

    Estimate from other species (literature data)

    7

    Crangon septemspinosa

    Copepods

    Rates on Calanus, (GLOBEC and literature data)

    8

    Sagitta spp.

    Copepods

    F, T responses on copepods (literature data)

    9

    Clupea harengus

    Copepods,

    larval fish

    Rates on copepods, fish larvae from gut contents (COP-GLOBEC data),

    10

    Cirolana polita

    Nauplii

    GLOBEC feeding experiments

    Small Predator Species (MOC 1)

    Abundance Rank

    Predator species

    Prey species

    Feeding Data

    ?

    Clytia hydroids

    Nauplii, fish larvae?

    F, T responses, selectivity on copepod eggs & nauplii, rates on cod larvae (GLOBEC data)

    ?

    Clytia medusae

    Nauplii

    Lab feeding rates (Sell unpubl.)

    ?

    Obelia medusae

    Nauplii

    Lab feeding rates (Sell unpubl.)

    ?

    Centropages spp

    Nauplii

    F, T responses, selectivity on nauplii (Sell et al.)

    ?

    Temora longicornis

    Nauplii

    F, T responses, selectivity on nauplii (Sell et al.)

    ?

    Metridia lucens

    Nauplii

    F, T responses, selectivity on nauplii (Sell et al.)

    ?

    Calanus finmarchicus

    Nauplii

    Literature data?

    ?

    Themisto gaudichaudii

    Nauplii, copepods

    Rates on copepods, nauplii from gut contents (GLOBEC data), F,T responses (literature data)

    Inadequately Sampled Predator Species

    Abundance Rank

    Predator species

    Prey species

    Feeding Data

    ?

    Cyanea capillata

    Copepods, fish eggs

    Rates, selectivity on copepods (literature data)

    ?

    Nanomia cara

    Copepods

    Rates on copepods from gut contents (literature data)

    ?

    Bolinopsis infundibulum

    Copepods,

    Fish larvae

    Rates on copepods from gut contents (GLOBEC data)

    ?

    Scomber scombrus

    Copepods,

    larval fish

    Rates on copepods, fish larvae from gut contents (COP-GLOBEC data),

  • Small Predator Species (MOC 1)

    Predator species

    Prey species

    Feeding Data

    Clytia hydroids

    Nauplii, copepods, fish larvae

    F, T responses, selectivity on copepod eggs & nauplii, rates on cod larvae (GLOBEC data)

    Clytia medusae

    Nauplii

    Lab feeding rates (Sell unpubl.)

    Obelia medusae

    Nauplii

    Lab feeding rates (Sell unpubl.)

    Centropages spp

    Nauplii

    F, T responses, selectivity on nauplii (Sell et al.)

    Temora longicornis

    Nauplii

    F, T responses, selectivity on nauplii (Sell et al.)

    Metridia lucens

    Nauplii

    F, T responses, selectivity on nauplii (Sell et al.)

    Calanus finmarchicus

    Nauplii

    Literature data?

    Themisto gaudichaudii

    Nauplii, copepods

    Rates on copepods, nauplii from gut contents (GLOBEC data), F,T responses (literature data)

  • Inadequately Sampled Predator Species

    Predator species

    Prey species

    Feeding Data

    Cyanea capillata

    Copepods, fish eggs

    Rates, selectivity on copepods (literature data)

    Nanomia cara

    Copepods

    Rates on copepods from gut contents (literature data)

    Bolinopsis infundibulum

    Copepods,

    Fish larvae

    Rates on copepods from gut contents (GLOBEC data)

    Scomber scombrus

    Copepods,

    larval fish

    Rates on copepods, fish larvae from gut contents (COP-GLOBEC data),

    Predator species

    Prey species

    Feeding Data

    Cyanea capillata

    Copepods, fish eggs

    Rates, selectivity on copepods (literature data)

    Nanomia cara

    Copepods

    Rates on copepods from gut contents (literature data)

    Bolinopsis infundibulum

    Copepods,

    Fish larvae

    Rates on copepods from gut contents (GLOBEC data)

    Scomber scombrus

    Copepods,

    larval fish

    Rates on copepods, fish larvae from gut contents (COP-GLOBEC data),

    Inadequately Sampled Predator Species

    Predator species

    Prey species

    Feeding Data

    Cyanea capillata

    Copepods, fish eggs

    Rates, selectivity on copepods (literature data)

    Nanomia cara

    Copepods

    Rates on copepods from gut contents (literature data)

    Bolinopsis infundibulum

    Copepods,

    Fish larvae

    Rates on copepods from gut contents (GLOBEC data)

    Scomber scombrus

    Copepods,

    larval fish

    Rates on copepods, fish larvae from gut contents (COP-GLOBEC data),

    Inadequately Sampled Predator Species

    Predator species

    Prey species

    Feeding Data

    Cyanea capillata

    Copepods, fish eggs

    Rates, selectivity on copepods (literature data)

    Nanomia cara

    Copepods

    Rates on copepods from gut contents (literature data)

    Bolinopsis infundibulum

    Copepods,

    Fish larvae

    Rates on copepods from gut contents (GLOBEC data)

    Scomber scombrus

    Copepods,

    larval fish

    Rates on copepods, fish larvae from gut contents (COP-GLOBEC data),

  • Predation Mortality CalculationPlot abundance maps per predator, depth, month, year.5 standard regions, 3 depth rangesAdd distribution of preyPredator abundance x feeding rate = Predation Capacity for each stationAdjust Predation Capacity for temperature effect & prey selection to modelsDivide Predation Capacity by target prey abundance for Instantaneous MortalitySum Instantaneous Mortality values for all co-occurring predators = total predation impact per prey species

  • Estimates of Predation MortalityMay, 1995

    PLB by years 1995-1999PLB by months 1995-1999PLB by month 1999Neomysis americana by month 1996Neomysis americana by month 1998Neomysis americana by month 1999Themisto gaudichaudii by month 1995-1999Themisto gaudichaudii by years 1995-1999Meganyctiphanes norvegica by month, all samples 1995-1999Euphausia krohniiCrangon septemspinosaClupea harengus plotted by years 1995-1999Clupea harengus 1997Clupea harengus 1998