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Marine Trophic Index in LME: Barents Sea
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
4.19
149
0
1
1951
4.13
142.6
0.09
1.09
1952
4.12
142.4
0.05
1.05
1953
4.13
140.7
-0.25
0.78
1954
4.06
134.6
-0.24
0.79
1955
4.24
159.2
0.74
2.1
1956
4.23
158.4
0.84
2.32
1957
4.12
142.8
0.2
1.22
1958
4
128.7
-0.08
0.92
1959
4.04
134.2
0.04
1.04
1960
4.01
129.6
0.11
1.12
1961
4
129.6
0.11
1.12
1962
4.13
142.8
0.39
1.48
1963
4.08
136
0.2
1.22
1964
4.03
126
-0.29
0.75
1965
3.73
91.5
-0.71
0.49
1966
3.67
84.9
-0.62
0.54
1967
3.62
80.5
-0.5
0.61
1968
3.79
101.6
0.14
1.15
1969
3.88
109.7
0.24
1.27
1970
3.62
74.9
-0.18
0.84
1971
3.58
69.4
-0.51
0.6
1972
3.62
70.7
-0.49
0.61
1973
3.63
73.5
-0.03
0.97
1974
3.76
92.5
0.25
1.28
1975
3.63
74.3
0.04
1.04
1976
3.5
59.2
0.03
1.03
1977
3.45
53.5
-0.06
0.94
1978
3.45
54.6
-0.38
0.68
1979
3.4
45.8
-0.69
0.5
1980
3.4
45.4
-0.83
0.44
1981
3.34
39.3
-0.88
0.41
1982
3.31
38.4
-0.95
0.39
1983
3.25
32.4
-1.07
0.34
1984
3.27
36.1
-1.28
0.28
1985
3.37
49.7
-1.33
0.26
1986
3.77
98.9
-0.97
0.38
1987
3.97
125.2
-0.55
0.58
1988
3.91
121.6
-0.82
0.44
1989
3.95
125.7
-0.95
0.39
1990
3.69
99.9
-1.81
0.16
1991
3.38
47.1
-1.35
0.26
1992
3.38
49.2
-1.07
0.34
1993
3.61
80.1
-0.9
0.41
1994
4.06
136.1
-0.11
0.9
1995
3.98
126.6
-0.24
0.79
1996
3.94
119.8
-0.24
0.79
1997
3.9
119.6
-0.32
0.73
1998
3.82
113
-0.63
0.53
1999
3.68
95.7
-0.92
0.4
2000
3.51
73.7
-1.18
0.31
2001
3.55
71.1
-1
0.37
2002
3.47
61.9
-0.92
0.4
2003
3.69
85.7
-0.93
0.39
2004
3.88
106.9
-0.58
0.56
2005
3.81
102.4
-0.72
0.49
2006
3.88
108.9
-0.67
0.51
Show/Hide species list
Exclude
TL
SLMax(cm)
Common Name
Scientific Name
4.53000020980835
219
Atlantic halibut
Hippoglossus hippoglossus
4.50750017166138
287
Mackerel sharks and white sharks
Lamnidae
4.48999977111816
200
Angler
Lophius piscatorius
4.48000001907349
66
Greenland halibut
Reinhardtius hippoglossoides
4.48000001907349
127
Blue ling
Molva dypterygia
4.46000003814697
150
Goosefishes
Lophiidae
4.46000003814697
112
Monkfishes
Lophius
4.42999982833862
376
Atlantic bluefin tuna
Thunnus thynnus
4.42999982833862
123
Atlantic salmon
Salmo salar
4.42000007629395
130
European hake
Merluccius merluccius
4.42000007629395
186
Atlantic cod
Gadus morhua
4.38000011444092
107
Saithe
Pollachius virens
4.36999988555908
120
Sea lamprey
Petromyzon marinus
4.30000019073486
130
Piked dogfish
Squalus acanthias
4.28999996185303
57
Whiting
Merlangius merlangus
4.2622218132019
150
Mackerels tunas and bonitos
Scombridae
4.23999977111816
34
Navaga
Eleginus nawaga
4.23999977111816
289
Blue shark
Prionace glauca
4.21999979019165
606
Greenland shark
Somniosus microcephalus
4.21000003814697
89
Garpike
Belone belone
4.21000003814697
277
Porbeagle
Lamna nasus
4.19999980926514
376
Tunas bonitos and billfishes
Scombroids
4.19000005722046
62
Pink salmon
Oncorhynchus gorbuscha
4.18833303451538
606
Bramble and sleeper and dogfish sharks
Squaliformes
4.15000009536743
107
Pollack
Pollachius pollachius
4.13424253463745
32
Squids
Teuthida
4.09999990463257
90
Char
Salvelinus
4.09000015258789
82
Haddock
Melanogrammus aeglefinus
4.08555555343628
35
Arrow squids
Ommastrephidae
4.07999992370605
87
Ocean perch
Sebastes marinus
4.07882404327393
525
Ground sharks
Carcharhiniformes
4.05230808258057
164
Jacks and pompanos
Carangidae
4.05000019073486
729
Sharks and rays
Elasmobranchii
4.01000022888184
41
Blue whiting
Micromesistius poutassou
4.01000022888184
75
European flying squid
Todarodes sagittatus
4
300
Sharks rays and skates etc
Sharks or rays and chimaeras
4
150
Various sharks
Sharks rays and chimaeras
4
89
Salmon and trout
Salmo
4
98
Tusk
Brosme brosme
3.99499988555908
90
Gunnels and forkbeards
Phycis
3.98279094696045
190
Sea basses or groupers and fairy basslets
Serranidae
3.97000002861023
60
Alfonsinos
Beryx
3.96499991416931
49
Megrims
Lepidorhombus
3.9466667175293
24
Weevers
Trachinus
3.91417288780212
80
Cods
Gadiformes
3.89499998092651
68
Shads
Alosa
3.89000010490417
49
Lumpsucker
Cyclopterus lumpus
3.87538504600525
82
Grenadiers or rattails
Macrouridae
3.82999992370605
172
Wreckfish
Polyprion americanus
3.81625008583069
205
Skates
Rajidae
3.80988097190857
27
Cephalopods
Cephalopoda
3.7960000038147
83
Skates
Raja
3.79384589195251
87
Redfishes
Sebastes
3.78355598449707
45
Scorpionfishes and flatheads
Scorpaeniformes
3.75
180
Northern wolffish
Anarhichas denticulatus
3.74000000953674
25
Searobins
Triglidae
3.72000002861023
150
Cartilaginous fishes
Sharks rays and chimaeras
3.71250009536743
50
Turbots
Scophthalmidae
3.70222210884094
28
Cuttlefishes
Sepiida
3.6949999332428
66
Jack and horse mackerels
Trachurus
3.65000009536743
33
Deepwater redfish
Sebastes mentella
3.65000009536743
67
American plaice
Hippoglossoides platessoides
3.64000010490417
62
Atlantic horse mackerel
Trachurus trachurus
3.61999988555908
35
Argentine
Argentina sphyraena
3.61999988555908
82
Onion-eye grenadier
Macrourus berglax
3.61374998092651
205
Skates and rays
Rajiformes
3.59999990463257
83
Thornback ray
Raja clavata
3.58999991416931
57
Greenland cod
Gadus ogac
3.57180309295654
50
Flatfishes
Pleuronectiformes
3.5699999332428
53
Grey gurnard
Eutrigla gurnardus
3.5699999332428
155
Pudgy cuskeel
Spectrunculus grandis
3.53999996185303
106
Roundnose grenadier
Coryphaenoides rupestris
3.53143930435181
56
Perch-likes
Perciformes
3.52999997138977
43
Flounder
Platichthys flesus
3.50999999046326
75
Chimaeras
Hydrolagus
3.5
70
Starry ray
Raja asterias
3.5
6
Green crab
Carcinus maenas
3.49206900596619
54
Righteye flounders
Pleuronectidae
3.47000002861023
23
Armored searobins or armored gurnards
Peristediidae
3.39750003814697
35
Rocklings
Gaidropsarus
3.34999990463257
36
Argentines
Argentina
3.34500002861023
148
Wolffish
Anarhichas
3.30999994277954
70
Greater argentine
Argentina silus
3.30864906311035
164
Porgies
Sparidae
3.29999995231628
140
Salmonids
Salmonidae
3.29999995231628
16
Lanternfishes
Myctophidae
3.29999995231628
82
Whitefishes
Coregonus
3.28999996185303
40
Dab
Limanda limanda
3.25999999046326
100
European plaice
Pleuronectes platessa
3.24000000953674
25
Herrings
Clupeiformes
3.24000000953674
123
Wolf-fish
Anarhichas lupus
3.24000000953674
148
Spotted wolffish
Anarhichas minor
3.23000001907349
40
Atlantic herring
Clupea harengus
3.22000002861023
29
Norway pout
Trisopterus esmarkii
3.22000002861023
53
Lemon sole
Microstomus kitt
3.20000004768372
729
Basking shark
Cetorhinus maximus
3.19000005722046
9
Crongonid shrimp
Crangonidae
3.19000005722046
9
Common shrimp
Crangon crangon
3.1800000667572
46
Atlantic mackerel
Scomber scombrus
3.17000007629395
70
Common sole
Solea solea
3.16000008583069
140
Sea trout
Salmo trutta trutta
3.15166711807251
25
Soles
Soleidae
3.15000009536743
16
Capelin
Mallotus villosus
3.14000010490417
60
Witch flounder
Glyptocephalus cynoglossus
3.13666677474976
11
Palaemonid shrimps
Palaemonidae
3.13000011444092
41
Soles
Solea
3.11209011077881
15
Sandlances
Ammodytes
3.09999990463257
12
Craylets and squat lobsters
King crabs and squat-lobsters
3.09999990463257
33
Polar cod
Boreogadus saida
3.09999990463257
25
European pilchard
Sardina pilchardus
3.09999990463257
12
Whelk
Buccinum undatum
3.07999992370605
49
European whitefish
Coregonus lavaretus
3.05999994277954
37
European smelt
Osmerus eperlanus
3.04999995231628
100
Turbot
Scophthalmus maximus
3
25
Crustaceans
Crustacea
3
164
Ling
Molva molva
2.8199999332428
40
Red king crab
Paralithodes camtschaticus
2.70000004768372
25
Herrings sardines and anchovies
Clupeoids
2.70000004768372
50
Spiny lobsters
Palinurus
2.65000009536743
13
Natantian decapods
Shrimps and prawns
2.59999990463257
30
Marine crabs
Brachyura
2.59999990463257
16
Pandalus shrimps
Pandalus
2.52500009536743
120
Mullets
Mugilidae
2.46000003814697
14
Northern prawn
Pandalus borealis
2.29999995231628
16
Lithodes
Lithodes
2.29999995231628
8
Green sea urchin
Strongylocentrotus droebachiensis
2.09999990463257
8
Sea urchins
Strongylocentrotus
2.09999990463257
10
Common edible cockle
Cardium edule
2.09999990463257
7
Pullet carpet shell
Tapes pullastra
2
46
Sea cucumbers
Holothuroidea
2
10
Sea mussels
Mytilidae
2
10
Scallops
Pectinidae
2
8
Venus clams
Veneridae
2
25
Cupped oysters
Crassostrea
2
13
Horse mussels
Modiolus
2
4
Donax clams
Donax
2
8
Blue mussel
Mytilus edulis
2
108
Iceland scallop
Chlamys islandica
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
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