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Mapping fisheries catches and related Mapping fisheries catches and related indices of West Africa: 1950 to presentindices of West Africa: 1950 to present
R. WatsonR. Watson‘Sea Around Us’ ProjectFisheries CentreUniversity of British ColumbiaVancouver, [email protected]
A presentation made at the International Symposium on:Marine fisheries, ecosystems, and societies in West Africa : half a century of changeDakar, Senegal, June 24th to 28th, 2002
FAO Databases
FAO Databases
FAO Databases
FAO Statistical AreasFAO Statistical Areas
FAO Databases
‘Official’ Records
A FAO Databases
FAO Databases
‘Official’ Records‘Official’ Records
AA
FAO LandingsFAO Landings
Exclusive Economic ZonesExclusive Economic Zones
Data from Veridan
FAO Databases
TaxonomicDisaggregation
‘Official’ Records
A
B
FAO Databases
FAO Databases
TaxonomicDisaggregation
TaxonomicDisaggregation
‘Official’ Records‘Official’ Records
AA
BB
Capelin: Mallotus villosus from Muus and Dahlstrøm, 1974
Capelin: Mallotus villosus from Muus and Dahlstrøm, 1974
DepthDepth
Data from NGDD
Distribution RangesDistribution Ranges
N
S
LatitudeRange
MinimumDepth
MaximumDepth
Primary ProductivityPrimary Productivity
Data from EC Marine Environment Unit
Coral ReefCoral Reef
Coral data from WCMC
Presence in FAO AreaPresence in FAO Area
Species DistributionsSpecies Distributions
Cod Gadus morhua
FAO Databases
TaxonomicDisaggregation
‘Official’ Records
‘Disaggregated’ Records
A
B
FAO Databases
FAO Databases
TaxonomicDisaggregation
TaxonomicDisaggregation
‘Official’ Records‘Official’ Records
‘Disaggregated’ Records
‘Disaggregated’ Records
AA
BB
FAO Databases
TaxonomicDisaggregation
SpatialDisaggregation
‘Official’ Records
‘Disaggregated’ Records
A
B
C
FAO Databases
FAO Databases
TaxonomicDisaggregation
TaxonomicDisaggregation
SpatialDisaggregation
SpatialDisaggregation
‘Official’ Records‘Official’ Records
‘Disaggregated’ Records
‘Disaggregated’ Records
AA
BB
CC
FAO Databases
TaxonomicDisaggregation
SpatialDisaggregation
‘Official’ Records
‘Disaggregated’ Records
Catch rate by spatial cell
A
B
C
D
FAO Databases
FAO Databases
TaxonomicDisaggregation
TaxonomicDisaggregation
SpatialDisaggregation
SpatialDisaggregation
‘Official’ Records‘Official’ Records
‘Disaggregated’ Records
‘Disaggregated’ Records
Catch rate by spatial cellCatch rate by spatial cell
AA
BB
CC
DD
Taxon (what) FAO Area (where)Country (who)
Taxon (what) FAO Area (where)Country (who)
Taxon Distribution Database
Spatial ReferenceDatabase
Fishing AccessDatabase
Taxon (what) FAO Area (where)Country (who)
Taxon Distribution Database
Spatial ReferenceDatabase
Fishing AccessDatabase
Taxon (what) FAO Area (where)Country (who)
Taxon Distribution Database
Spatial ReferenceDatabase
Fishing AccessDatabase
Common Spatial Cells?
Taxon (what) FAO Area (where)Country (who)
Taxon Distribution Database
Spatial ReferenceDatabase
Fishing AccessDatabase
Common Spatial Cells? N
ORefine Rules/Databases
Taxon (what) FAO Area (where)Country (who)
Taxon Distribution Database
Spatial ReferenceDatabase
Fishing AccessDatabase
Common Spatial Cells?
Assign Catch Rate to Common Cells
YES
Global LandingsGlobal Landings
0
45
50
55
60
65
70
75
80
85
90
1970 1975 1980 1985 1990 1995 2000
UncorrectedEl Niño event
El Niño events
Lan
din
gs
(mil
lio
n t
on
nes
)
Global LandingsGlobal Landings
0
45
50
55
60
65
70
75
80
85
90
1970 1975 1980 1985 1990 1995 2000
Uncorrected
Corrected
Lan
din
gs
(mil
lio
n t
on
nes
)
Global LandingsGlobal Landings
0
45
50
55
60
65
70
75
80
85
90
1970 1975 1980 1985 1990 1995 2000
Uncorrected
Corrected
Corrected, no anchoveta
Lan
din
gs
(mil
lio
n t
on
nes
)
Global LandingsGlobal Landings
10
20
30
40
50
60
70
80
90
1950 1955 1960 1965 1970 1975 1980 1985 1990 1995
Peruvian Anchovy
Demersal
Pelagics
Land
ings
(m
illio
n to
nnes
)
10
20
30
40
50
60
70
80
90
1950 1955 1960 1965 1970 1975 1980 1985 1990 1995
10
20
30
40
50
60
70
80
90
1950 1955 1960 1965 1970 1975 1980 1985 1990 1995
Peruvian Anchovy
Demersal
Pelagics
Invertebrates
Land
ings
(m
illio
n to
nnes
)
Landings by Exclusive Economic Zone
Morocco1.51*
*Max. Catch Million tonnes
Landings by Exclusive Economic Zone
Morocco
Mauritania0.77
*Max. Catch Million tonnes
Landings by Exclusive Economic Zone
Morocco
Mauritania
Senegal0.37
*Max. Catch Million tonnes
Landings by Exclusive Economic Zone
Morocco
Mauritania
Senegal
Gambia0.03
*Max. Catch Million tonnes
Landings by Exclusive Economic Zone
Morocco
Mauritania
Senegal
Gambia
Guinea Bissau0.20
*Max. Catch Million tonnes
Landings by Exclusive Economic Zone
Morocco
Mauritania
Senegal
Gambia
Guinea Bissau
Guinea0.20
*Max. Catch Million tonnes
Landings by Exclusive Economic Zone
Morocco
Mauritania
Senegal
Gambia
Guinea Bissau
Guinea
Sierra Leone0.16
*Max. Catch Million tonnes
Landings by Exclusive Economic Zone
Morocco
Mauritania
Senegal
Gambia
Guinea Bissau
Guinea
Sierra Leone
Liberia0.03
*Max. Catch Million tonnes
Landings by Exclusive Economic Zone
Morocco
Mauritania
Senegal
Gambia
Guinea Bissau
Guinea
Sierra Leone
Liberia
Cote d’ Ivoire0.08
*Max. Catch Million tonnes
Landings by Exclusive Economic Zone
Morocco
Mauritania
Senegal
Gambia
Guinea Bissau
Guinea
Sierra Leone
Liberia
Cote d’ Ivoire
1950 1970 1990
Ghana0.12
*Max. Catch Million tonnes
Landings by Exclusive Economic Zone
Morocco
Mauritania
Senegal
Gambia
Guinea Bissau
Guinea
Sierra Leone
Liberia
Cote d’ Ivoire
1950 1970 1990
Ghana
Benin0.02
*Max. Catch Million tonnes
Landings by Exclusive Economic Zone
Morocco
Mauritania
Senegal
Gambia
Guinea Bissau
Guinea
Sierra Leone
Liberia
Cote d’ Ivoire
1950 1970 1990
Ghana
Benin
Nigeria0.29
*Max. Catch Million tonnes
Landings by Exclusive Economic Zone
Morocco
Mauritania
Senegal
Gambia
Guinea Bissau
Guinea
Sierra Leone
Liberia
Cote d’ Ivoire
1950 1970 1990
Ghana
Benin
Nigeria
Cameroon0.05
*Max. Catch Million tonnes
Landings by Exclusive Economic Zone
Morocco
Mauritania
Senegal
Gambia
Guinea Bissau
Guinea
Sierra Leone
Liberia
Cote d’ Ivoire
1950 1970 1990
Ghana
Benin
Nigeria
Cameroon
Eq Guinea0.07
*Max. Catch Million tonnes
Landings by Exclusive Economic Zone
Morocco
Mauritania
Senegal
Gambia
Guinea Bissau
Guinea
Sierra Leone
Liberia
Cote D’ Ivoire
1950 1970 1990
Ghana
Benin
Nigeria
Cameroon
Eq Guinea
Gabon0.05
*Max. Catch Million tonnes
Landings by Exclusive Economic Zone
Morocco
Mauritania
Senegal
Gambia
Guinea Bissau
Guinea
Sierra Leone
Liberia
Cote D’ Ivoire
1950 1970 1990
Ghana
Benin
Nigeria
Cameroon
Eq Guinea
Gabon
Congo Rep0.04
*Max. Catch Million tonnes
Landings by Exclusive Economic Zone
Morocco
Mauritania
Senegal
Gambia
Guinea Bissau
Guinea
Sierra Leone
Liberia
Cote D’ Ivoire
1950 1970 1990
Ghana
Benin
Nigeria
Cameroon
Eq Guinea
Gabon
Congo Rep
Congo Dem Rep0.09
*Max. Catch Million tonnes
Landings by Exclusive Economic Zone
Morocco
Mauritania
Senegal
Gambia
Guinea Bissau
Guinea
Sierra Leone
Liberia
Cote D’ Ivoire
1950 1970 1990
Ghana
Benin
Nigeria
Cameroon
Eq Guinea
Gabon
Congo Rep
Congo Dem Rep
Angola0.58
*Max. Catch Million tonnes
Landings by Exclusive Economic Zone
Morocco
Mauritania
Senegal
Gambia
Guinea Bissau
Guinea
Sierra Leone
Liberia
Cote D’ Ivoire
1950 1970 1990
Ghana
Benin
Nigeria
Cameroon
Eq Guinea
Gabon
Congo Rep
Congo Dem Rep
Angola
Namibia1.20
*Max. Catch Million tonnes
Landings by Exclusive Economic Zone
Morocco
Mauritania
Senegal
Gambia
Guinea Bissau
Guinea
Sierra Leone
Liberia
Cote D’ Ivoire
1950 1970 1990
Ghana
Benin
Nigeria
Cameroon
Eq Guinea
Gabon
Congo Rep
Congo Dem Rep
Angola
Namibia
1950 1970 1990
South Africa1.53
*Max. Catch Million tonnes
Landings by Exclusive Economic Zone
Morocco
Mauritania
Senegal
Gambia
Guinea Bissau
Guinea
Sierra Leone
Liberia
Cote D’ Ivoire
1950 1970 1990
Ghana
Benin
Nigeria
Cameroon
Eq Guinea
Gabon
Congo Rep
Congo Dem Rep
Angola
Namibia
1950 1970 1990
South Africa1.53
1.20
0.58
0.09
0.04
0.05
0.07
0.05
0.29
0.02
0.12
0.08
0.03
0.16
0.20
0.20
0.03
0.37
0.77
1.51*
*Max. Catch Million tonnes
Landings by Exclusive Economic Zone
CatchCatch
ValueValue
The Sea Around Us project is a UBC Fisheries Centre partnership with the Pew Charitable Trusts of Philadelphia, USA
Collaborators:
Ahmed Gelchu, Fredelito Valdez, Adrian Kitchingman, and Wilf Swartz
Daniel Pauly, Rashid Sumaila, Villy Christensen, Jackie Alder and other Fisheries Centre colleagues
Rainer Froese and the FishBase team
Richard Grainger, Fabio Carocci, Ben Satia, Tony Jarrett, Jacek Majkowski, Adele Crispoldi, Marc Taconet, Gene Collins and other FAO professionals
Nicolas Hoepffner from EC Marine Environment Unit, Italy
Lambert Meñez and ReefBase team
World Conservation Monitoring Centre
U.S. National Snow and Ice Data Center
Veridan Information Solutions Inc.
US National Geophysics Data Centre
Norm Hall, Murdoch University
