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Marine Trophic Index in the waters of Benin
High seas accessed
by Benin
:
1965
This reflects the year that the
Sea Around Us
project set as the first year in which fishing vessels from this country engaged in fishing in High Seas waters (water beyond the boundaries of Exclusive Economic Zones). If you have knowledge and data that would support an earlier or later year to be specified, please advise us of this via
feedback
.
Other EEZs accessed
by Benin
:
1965
This reflects the year that the
Sea Around Us
project set as the first year in which fishing vessels from this country engaged in fishing in the Exclusive Economic Zone waters of other countries (if observed access or formal access agreements existed). If you have knowledge and data that would support an earlier or later year to be specified, please advise us of this via
feedback
.
Compute regression
Start year:
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
End year:
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
Compute regression
Start year:
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
End year:
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
Show/Hide tabular data
Year
Mean trophic level
Mean max. length (cm)
FiB Index
Expansion factor
1950
3.33
146.7
0
1
1951
3.33
143.9
0.04
1.04
1952
3.34
138.9
0.13
1.14
1953
3.35
133
0.25
1.28
1954
3.38
134.4
0.37
1.45
1955
3.4
133.1
0.43
1.54
1956
3.34
118.1
0.61
1.84
1957
3.54
143.9
1.3
3.67
1958
3.58
144.8
1.47
4.35
1959
3.67
157.1
2.04
7.69
1960
3.69
147.8
2.33
10.28
1961
3.68
132.3
2.49
12.06
1962
3.5
114.6
2.51
12.3
1963
3.5
96.9
2.57
13.07
1964
3.45
118.1
2.95
19.11
1965
3.63
115.6
3.2
24.53
1966
3.55
113.4
3.03
20.7
1967
3.49
103.2
3.21
24.78
1968
3.51
102.7
3.49
32.79
1969
3.47
97.5
3.62
37.34
1970
3.61
96
4.01
55.15
1971
3.31
63.5
4.62
101.49
1972
3.22
58.7
4.55
94.63
1973
3.4
79.6
4.44
84.77
1974
3.4
71.5
4.46
86.49
1975
3.41
82.1
4.39
80.64
1976
3.55
84.4
2.5
12.18
1977
3.56
86.6
2.58
13.2
1978
3.96
133.9
3.62
37.34
1979
4.04
137.4
3.29
26.84
1980
3.47
75.7
2.53
12.55
1981
3.87
103.4
2.33
10.28
1982
3.5
77.2
2.74
15.49
1983
3.77
86.8
2.15
8.58
1984
3.77
85.3
2.33
10.28
1985
3.3
47.3
3.49
32.79
1986
3.33
62
3.67
39.25
1987
3.22
55.1
3.66
38.86
1988
3.37
62
3.85
46.99
1989
3.43
67.8
4.12
61.56
1990
3.44
68.9
4.02
55.7
1991
3.44
69.1
3.96
52.46
1992
3.46
70.6
3.8
44.7
1993
3.46
71.3
3.81
45.15
1994
3.47
72.4
3.84
46.53
1995
3.48
73.8
3.84
46.53
1996
3.49
75.1
3.89
48.91
1997
3.51
73.5
4.09
59.74
1998
3.54
75.3
4.14
62.8
1999
3.53
78.8
4.07
58.56
2000
3.54
78
3.73
41.68
2001
3.39
64.1
3.95
51.94
2002
3.37
61.4
4.06
57.97
2003
3.43
71.2
4.36
78.26
2004
3.46
69
4.35
77.48
2005
3.46
70.3
4.2
66.69
2006
3.45
67.9
4.17
64.72
Show/Hide species list
Exclude
TL
SLMax(cm)
Common Name
Scientific Name
4.5
219
Bigeye tuna
Thunnus obesus
4.5
98
Bluefish
Pomatomus saltatrix
4.5
79
John dory
Zeus faber
4.48999977111816
449
Swordfish
Xiphias gladius
4.48000001907349
246
Atlantic white marlin
Tetrapturus albidus
4.47714281082153
367
Billfishes
Istiophoridae
4.46000003814697
112
Monkfishes
Lophius
4.44999980926514
192
Largehead hairtail
Trichiurus lepturus
4.42999982833862
376
Atlantic bluefin tuna
Thunnus thynnus
4.40333318710327
179
Barracudas
Sphyraena
4.40000009536743
258
Atlantic sailfish
Istiophorus albicans
4.40000009536743
227
Wahoo
Acanthocybium solandri
4.40000009536743
100
Little tunny
Euthynnus alletteratus
4.38000011444092
122
Needlefishes
Belonidae
4.38000011444092
346
Atlantic blue marlin
Makaira nigricans
4.36999988555908
172
Common dolphinfish
Coryphaena hippurus
4.34999990463257
108
Skipjack tuna
Katsuwonus pelamis
4.34000015258789
54
Frigate tuna
Auxis thazard thazard
4.34000015258789
231
Yellowfin tuna
Thunnus albacares
4.30999994277954
136
Albacore
Thunnus alalunga
4.28000020980835
248
Longbill spearfish
Tetrapturus pfluegeri
4.28000020980835
392
Shortfin mako
Isurus oxyrinchus
4.2662501335144
125
Hakes
Merluccius
4.2622218132019
150
Mackerels tunas and bonitos
Scombridae
4.26000022888184
82
West African Spanish mackerel
Scomberomorus tritor
4.23999977111816
289
Blue shark
Prionace glauca
4.2350001335144
60
Frigate tuna
Auxis
4.23199987411499
90
Dogfish sharks
Squalidae
4.19999980926514
90
Atlantic bonito
Sarda sarda
4.18599987030029
421
Hammerhead and bonnethead and scoophead shark
Sphyrnidae
4.13424253463745
32
Squids
Teuthida
4.07999992370605
82
Atlantic pomfret
Brama brama
4.07999992370605
89
West African ladyfish
Elops lacerta
4.05230808258057
164
Jacks and pompanos
Carangidae
4.02400016784668
98
Snappers
Lutjanus
4.01999998092651
98
White grouper
Epinephelus aeneus
4
300
Sharks rays and skates etc
Sharks or rays and chimaeras
3.99000000953674
180
Conger eels
Muraenesox
3.99000000953674
25
Common squids
Loligo
3.98279094696045
190
Sea basses or groupers and fairy basslets
Serranidae
3.96499991416931
100
Seabreams (Dentex spp)
Dentex
3.91666698455811
43
Scorpionfishes or rockfishes
Scorpaenidae
3.91417288780212
80
Cods
Gadiformes
3.91000008583069
50
Blue butterfish
Stromateus fiatola
3.84999990463257
172
Silver scabbardfish
Lepidopus caudatus
3.84999990463257
90
Dusky grouper
Epinephelus marginatus
3.84349989891052
190
Groupers
Epinephelus
3.82999992370605
172
Wreckfish
Polyprion americanus
3.78999996185303
100
Croakers
Pseudotolithus
3.76205897331238
200
Drums or croakers
Sciaenidae
3.69749999046326
163
Guitarfishes
Rhinobatidae
3.6949999332428
66
Jack and horse mackerels
Trachurus
3.64000010490417
62
Atlantic horse mackerel
Trachurus trachurus
3.6324999332428
37
Scads
Decapterus
3.61374998092651
205
Skates and rays
Rajiformes
3.59999990463257
28
Cuttlefishes
Sepiidae
3.59999990463257
42
Red pandora
Pagellus bellottii
3.59999990463257
70
African threadfish
Alectis alexandrinus
3.59999990463257
49
False scad
Caranx rhonchus
3.57999992370605
68
Octopuses
Octopoda
3.57450008392334
25
Flyingfishes
Exocoetidae
3.57428574562073
30
Spadefishes and batfishes and scats
Ephippidae
3.57180309295654
50
Flatfishes
Pleuronectiformes
3.55999994277954
26
Boe drum
Pteroscion peli
3.54999995231628
28
Common cuttlefish
Sepia officinalis
3.54999995231628
32
Common octopus
Octopus vulgaris
3.54749989509583
100
Seabreams (Pagrus spp)
Pagrus
3.53999996185303
41
Atlantic emperor
Lethrinus atlanticus
3.53143930435181
56
Perch-likes
Perciformes
3.51999998092651
29
Angola dentex
Dentex angolensis
3.51166701316834
35
Threadfin breams and Whiptail breams
Nemipteridae
3.5
102
Crevalle jack
Caranx hippos
3.49874997138977
43
Puffers
Tetraodontidae
3.49000000953674
80
Rubberlip grunt
Plectorhinchus mediterraneus
3.47857093811035
62
Sea catfishes
Ariidae
3.47000002861023
23
Armored searobins or armored gurnards
Peristediidae
3.44000005722046
70
Pandoras
Pagellus
3.4300000667572
53
Large-eye dentex
Dentex macrophthalmus
3.35863590240479
80
Grunts
Haemulidae
3.3199999332428
49
Blue jack mackerel
Trachurus picturatus
3.30999994277954
4
Deepwater rose shrimp
Parapenaeus longirostris
3.30864906311035
164
Porgies
Sparidae
3.29999995231628
33
Cunene horse mackerel
Trachurus trecae
3.28999996185303
30
Tonguefishes
Cynoglossidae
3.28500008583069
40
Western goatfishes
Mullus
3.25250005722046
53
Triggerfishes
Balistidae
3.24000000953674
55
West African goatfish
Pseudupeneus prayensis
3.21000003814697
53
Atlantic bumper
Chloroscombrus chrysurus
3.21000003814697
25
Round sardinella
Sardinella aurita
3.20000004768372
35
Madeiran sardinella
Sardinella maderensis
3.19000005722046
20
West African ilisha
Ilisha africana
3.17000007629395
70
Common sole
Solea solea
3.15166711807251
25
Soles
Soleidae
3.10999989509583
20
European anchovy
Engraulis encrasicolus
3.08999991416931
52
Chub mackerel
Scomber japonicus
3.04500007629395
45
Halfbeaks
Hemiramphus
3.02999997138977
25
Bigeye grunt
Brachydeuterus auritus
3
25
Crustaceans
Crustacea
3
30
Bogue
Boops boops
2.76699995994568
21
Sardinella
Sardinella
2.70000004768372
50
Spiny lobsters
Palinurus
2.65000009536743
13
Natantian decapods
Shrimps and prawns
2.59999990463257
30
Marine crabs
Brachyura
2.59999990463257
40
Tropical spiny lobsters
Panulirus
2.52500009536743
120
Mullets
Mugilidae
2.5
35
Bonga shad
Ethmalosa fimbriata
FiB index inputs
Reference year:
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
Transfer efficiency:
Method
Catch reconstruction:
Not yet available
Available but not yet incorporated
Partially available and incorporated
Available and incorporated
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