mapping fisheries catches and related indices of west africa: 1950 to present r. watson ‘sea...
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![Page 1: Mapping fisheries catches and related indices of West Africa: 1950 to present R. Watson ‘Sea Around Us’ Project Fisheries Centre University of British](https://reader036.vdocument.in/reader036/viewer/2022070404/56649f345503460f94c51b3f/html5/thumbnails/1.jpg)
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
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FAO Databases
FAO Databases
FAO Databases
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FAO Statistical AreasFAO Statistical Areas
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FAO Databases
‘Official’ Records
A FAO Databases
FAO Databases
‘Official’ Records‘Official’ Records
AA
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FAO LandingsFAO Landings
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Exclusive Economic ZonesExclusive Economic Zones
Data from Veridan
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FAO Databases
TaxonomicDisaggregation
‘Official’ Records
A
B
FAO Databases
FAO Databases
TaxonomicDisaggregation
TaxonomicDisaggregation
‘Official’ Records‘Official’ Records
AA
BB
![Page 8: Mapping fisheries catches and related indices of West Africa: 1950 to present R. Watson ‘Sea Around Us’ Project Fisheries Centre University of British](https://reader036.vdocument.in/reader036/viewer/2022070404/56649f345503460f94c51b3f/html5/thumbnails/8.jpg)
Capelin: Mallotus villosus from Muus and Dahlstrøm, 1974
Capelin: Mallotus villosus from Muus and Dahlstrøm, 1974
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DepthDepth
Data from NGDD
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Distribution RangesDistribution Ranges
N
S
LatitudeRange
MinimumDepth
MaximumDepth
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Primary ProductivityPrimary Productivity
Data from EC Marine Environment Unit
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Coral ReefCoral Reef
Coral data from WCMC
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Presence in FAO AreaPresence in FAO Area
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Species DistributionsSpecies Distributions
Cod Gadus morhua
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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
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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
![Page 17: Mapping fisheries catches and related indices of West Africa: 1950 to present R. Watson ‘Sea Around Us’ Project Fisheries Centre University of British](https://reader036.vdocument.in/reader036/viewer/2022070404/56649f345503460f94c51b3f/html5/thumbnails/17.jpg)
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
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Taxon (what) FAO Area (where)Country (who)
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Taxon (what) FAO Area (where)Country (who)
Taxon Distribution Database
Spatial ReferenceDatabase
Fishing AccessDatabase
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Taxon (what) FAO Area (where)Country (who)
Taxon Distribution Database
Spatial ReferenceDatabase
Fishing AccessDatabase
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Taxon (what) FAO Area (where)Country (who)
Taxon Distribution Database
Spatial ReferenceDatabase
Fishing AccessDatabase
Common Spatial Cells?
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Taxon (what) FAO Area (where)Country (who)
Taxon Distribution Database
Spatial ReferenceDatabase
Fishing AccessDatabase
Common Spatial Cells? N
ORefine Rules/Databases
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Taxon (what) FAO Area (where)Country (who)
Taxon Distribution Database
Spatial ReferenceDatabase
Fishing AccessDatabase
Common Spatial Cells?
Assign Catch Rate to Common Cells
YES
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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
)
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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
)
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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
)
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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
)
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Landings by Exclusive Economic Zone
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Morocco1.51*
*Max. Catch Million tonnes
Landings by Exclusive Economic Zone
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Morocco
Mauritania0.77
*Max. Catch Million tonnes
Landings by Exclusive Economic Zone
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Morocco
Mauritania
Senegal0.37
*Max. Catch Million tonnes
Landings by Exclusive Economic Zone
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Morocco
Mauritania
Senegal
Gambia0.03
*Max. Catch Million tonnes
Landings by Exclusive Economic Zone
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Morocco
Mauritania
Senegal
Gambia
Guinea Bissau0.20
*Max. Catch Million tonnes
Landings by Exclusive Economic Zone
![Page 34: Mapping fisheries catches and related indices of West Africa: 1950 to present R. Watson ‘Sea Around Us’ Project Fisheries Centre University of British](https://reader036.vdocument.in/reader036/viewer/2022070404/56649f345503460f94c51b3f/html5/thumbnails/34.jpg)
Morocco
Mauritania
Senegal
Gambia
Guinea Bissau
Guinea0.20
*Max. Catch Million tonnes
Landings by Exclusive Economic Zone
![Page 35: Mapping fisheries catches and related indices of West Africa: 1950 to present R. Watson ‘Sea Around Us’ Project Fisheries Centre University of British](https://reader036.vdocument.in/reader036/viewer/2022070404/56649f345503460f94c51b3f/html5/thumbnails/35.jpg)
Morocco
Mauritania
Senegal
Gambia
Guinea Bissau
Guinea
Sierra Leone0.16
*Max. Catch Million tonnes
Landings by Exclusive Economic Zone
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Morocco
Mauritania
Senegal
Gambia
Guinea Bissau
Guinea
Sierra Leone
Liberia0.03
*Max. Catch Million tonnes
Landings by Exclusive Economic Zone
![Page 37: Mapping fisheries catches and related indices of West Africa: 1950 to present R. Watson ‘Sea Around Us’ Project Fisheries Centre University of British](https://reader036.vdocument.in/reader036/viewer/2022070404/56649f345503460f94c51b3f/html5/thumbnails/37.jpg)
Morocco
Mauritania
Senegal
Gambia
Guinea Bissau
Guinea
Sierra Leone
Liberia
Cote d’ Ivoire0.08
*Max. Catch Million tonnes
Landings by Exclusive Economic Zone
![Page 38: Mapping fisheries catches and related indices of West Africa: 1950 to present R. Watson ‘Sea Around Us’ Project Fisheries Centre University of British](https://reader036.vdocument.in/reader036/viewer/2022070404/56649f345503460f94c51b3f/html5/thumbnails/38.jpg)
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
![Page 39: Mapping fisheries catches and related indices of West Africa: 1950 to present R. Watson ‘Sea Around Us’ Project Fisheries Centre University of British](https://reader036.vdocument.in/reader036/viewer/2022070404/56649f345503460f94c51b3f/html5/thumbnails/39.jpg)
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
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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
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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
![Page 42: Mapping fisheries catches and related indices of West Africa: 1950 to present R. Watson ‘Sea Around Us’ Project Fisheries Centre University of British](https://reader036.vdocument.in/reader036/viewer/2022070404/56649f345503460f94c51b3f/html5/thumbnails/42.jpg)
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
![Page 43: Mapping fisheries catches and related indices of West Africa: 1950 to present R. Watson ‘Sea Around Us’ Project Fisheries Centre University of British](https://reader036.vdocument.in/reader036/viewer/2022070404/56649f345503460f94c51b3f/html5/thumbnails/43.jpg)
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
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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
![Page 45: Mapping fisheries catches and related indices of West Africa: 1950 to present R. Watson ‘Sea Around Us’ Project Fisheries Centre University of British](https://reader036.vdocument.in/reader036/viewer/2022070404/56649f345503460f94c51b3f/html5/thumbnails/45.jpg)
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
![Page 46: Mapping fisheries catches and related indices of West Africa: 1950 to present R. Watson ‘Sea Around Us’ Project Fisheries Centre University of British](https://reader036.vdocument.in/reader036/viewer/2022070404/56649f345503460f94c51b3f/html5/thumbnails/46.jpg)
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
![Page 47: Mapping fisheries catches and related indices of West Africa: 1950 to present R. Watson ‘Sea Around Us’ Project Fisheries Centre University of British](https://reader036.vdocument.in/reader036/viewer/2022070404/56649f345503460f94c51b3f/html5/thumbnails/47.jpg)
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
![Page 48: Mapping fisheries catches and related indices of West Africa: 1950 to present R. Watson ‘Sea Around Us’ Project Fisheries Centre University of British](https://reader036.vdocument.in/reader036/viewer/2022070404/56649f345503460f94c51b3f/html5/thumbnails/48.jpg)
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
![Page 49: Mapping fisheries catches and related indices of West Africa: 1950 to present R. Watson ‘Sea Around Us’ Project Fisheries Centre University of British](https://reader036.vdocument.in/reader036/viewer/2022070404/56649f345503460f94c51b3f/html5/thumbnails/49.jpg)
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
![Page 50: Mapping fisheries catches and related indices of West Africa: 1950 to present R. Watson ‘Sea Around Us’ Project Fisheries Centre University of British](https://reader036.vdocument.in/reader036/viewer/2022070404/56649f345503460f94c51b3f/html5/thumbnails/50.jpg)
CatchCatch
![Page 51: Mapping fisheries catches and related indices of West Africa: 1950 to present R. Watson ‘Sea Around Us’ Project Fisheries Centre University of British](https://reader036.vdocument.in/reader036/viewer/2022070404/56649f345503460f94c51b3f/html5/thumbnails/51.jpg)
ValueValue
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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