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Marine Trophic Index in the waters of Guam (USA)
High seas accessed
by Guam (USA)
:
1950
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 Guam (USA)
:
n/a
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
3.66
104.3
0
1
1951
3.72
105.1
0.27
1.31
1952
3.7
104.8
0.18
1.2
1953
3.65
108.8
0.05
1.05
1954
3.75
109.7
0.36
1.43
1955
3.75
111
0.38
1.46
1956
3.76
111.7
0.39
1.48
1957
3.77
111.5
0.38
1.46
1958
3.87
112
0.76
2.14
1959
3.9
112
0.88
2.41
1960
3.75
114.6
0.21
1.23
1961
3.89
113.8
0.76
2.14
1962
3.92
114.5
0.9
2.46
1963
3.82
115.3
0.5
1.65
1964
3.89
114.1
0.83
2.29
1965
3.85
118.6
0.64
1.9
1966
4.04
121.7
1.36
3.9
1967
3.99
123.6
1.09
2.97
1968
3.98
128.1
1.04
2.83
1969
4
126.3
1.1
3
1970
4.08
143.9
1.47
4.35
1971
4.11
139.8
1.67
5.31
1972
4.12
142.8
1.71
5.53
1973
4.14
137.2
1.89
6.62
1974
4.23
131.8
2.54
12.68
1975
4.2
143.7
2.21
9.12
1976
4.22
141.2
2.4
11.02
1977
3.57
111.3
-0.91
0.4
1978
3.57
111.4
-0.95
0.39
1979
3.57
111.4
-0.97
0.38
1980
3.69
114
-0.7
0.5
1981
4.02
138.3
0.64
1.9
1982
4.12
133.2
1.15
3.16
1983
4.27
137.1
2.54
12.68
1984
4.3
131.3
2.62
13.74
1985
4.28
127.5
2.3
9.97
1986
4.3
131.3
2.47
11.82
1987
4.3
150.9
2.48
11.94
1988
4.26
121.4
1.94
6.96
1989
4.28
132.5
1.99
7.32
1990
4.3
137.1
2.19
8.94
1991
4.29
119.8
2.38
10.8
1992
4.27
129.1
2.05
7.77
1993
4.3
122.4
2.27
9.68
1994
4.33
135.8
3.29
26.84
1995
4.31
122.3
3.16
23.57
1996
4.31
124.9
3.08
21.76
1997
4.32
136.9
3.26
26.05
1998
4.32
132.5
3.37
29.08
1999
4.32
125.2
3.6
36.6
2000
4.32
126.5
3.17
23.81
2001
4.32
126.9
3.1
22.2
2002
4.33
126.6
3.11
22.42
2003
4.33
133
2.07
7.92
2004
4.31
134.8
1.86
6.42
2005
4.31
128.2
1.66
5.26
2006
4.28
124.4
1.89
6.62
Show/Hide species list
Exclude
TL
SLMax(cm)
Common Name
Scientific Name
4.57999992370605
287
Striped marlin
Tetrapturus audax
4.5
279
Indo-Pacific sailfish
Istiophorus platypterus
4.5
219
Bigeye tuna
Thunnus obesus
4.5
115
Flat needlefish
Ablennes hians
4.5
156
Greater amberjack
Seriola dumerili
4.5
179
Great barracuda
Sphyraena barracuda
4.5
105
Bigeye trevally
Caranx sexfasciatus
4.5
88
Doublespotted queenfish
Scomberoides lysan
4.5
189
Shortbill spearfish
Tetrapturus angustirostris
4.5
60
Squaretail coralgrouper
Plectropomus areolatus
4.5
40
Sixblotch hind
Cephalopholis sexmaculata
4.5
53
White-edged lyretail
Variola albimarginata
4.48999977111816
118
Ruby snapper
Etelis carbunculus
4.48999977111816
449
Swordfish
Xiphias gladius
4.48999977111816
109
Bluefin trevally
Caranx melampygus
4.48999977111816
48
Obtuse barracuda
Sphyraena obtusata
4.48999977111816
120
Leopard coralgrouper
Plectropomus leopardus
4.48000001907349
62
Island trevally
Carangoides orthogrammus
4.48000001907349
50
Peacock hind
Cephalopholis argus
4.47714281082153
367
Billfishes
Istiophoridae
4.46999979019165
93
Kawakawa
Euthynnus affinis
4.46999979019165
132
Hound needlefish
Tylosurus crocodilus crocodilus
4.46500015258789
122
Needlefishes
Tylosurus
4.46000003814697
367
Black marlin
Makaira indica
4.46000003814697
410
Indo-Pacific blue marlin
Makaira mazara
4.46000003814697
98
Flame snapper
Etelis coruscans
4.40333318710327
179
Barracudas
Sphyraena
4.40000009536743
227
Wahoo
Acanthocybium solandri
4.38500022888184
164
Amberjacks
Seriola
4.38000011444092
122
Needlefishes
Belonidae
4.38000011444092
45
Flowery flounder
Bothus mancus
4.36999988555908
172
Common dolphinfish
Coryphaena hippurus
4.3600001335144
38
Coral hind
Cephalopholis miniata
4.34999990463257
108
Skipjack tuna
Katsuwonus pelamis
4.34000015258789
231
Yellowfin tuna
Thunnus albacares
4.32999992370605
60
Yellow-edged lyretail
Variola louti
4.30999994277954
136
Albacore
Thunnus alalunga
4.29699993133545
56
Lizardfishes
Synodontidae
4.28000020980835
482
Bluntnose sixgill shark
Hexanchus griseus
4.26999998092651
52
Onespot snapper
Lutjanus monostigma
4.2622218132019
150
Mackerels tunas and bonitos
Scombridae
4.24176502227783
207
Requiem sharks
Carcharhinidae
4.21999979019165
170
Giant trevally
Caranx ignobilis
4.21750020980835
125
Gymnothorax
Gymnothorax
4.21000003814697
300
Pacific bluefin tuna
Thunnus orientalis
4.19999980926514
49
Redmouth grouper
Aethaloperca rogaa
4.19500017166138
346
Hammerhead sharks
Sphyrna
4.17999982833862
246
Conger and garden eels
Congridae
4.17999982833862
40
Ornate jobfish
Pristipomoides argyrogrammicus
4.17999982833862
43
Surge grouper
Epinephelus socialis
4.15999984741211
325
Oceanic whitetip shark
Carcharhinus longimanus
4.1399998664856
58
Small toothed jobfish
Aphareus furca
4.1399998664856
101
Brown-marbled grouper
Epinephelus fuscoguttatus
4.12428617477417
102
Jacks
Caranx
4.1100001335144
89
Rusty jobfish
Aphareus rutilans
4.1100001335144
76
Two-spot red snapper
Lutjanus bohar
4.07399988174438
100
Moray eels
Muraenidae
4.07000017166138
33
Blacktail snapper
Lutjanus fulvus
4.05230808258057
164
Jacks and pompanos
Carangidae
4.05000019073486
729
Sharks and rays
Elasmobranchii
4.05000019073486
23
Starspotted grouper
Epinephelus hexagonatus
4.02400016784668
98
Snappers
Lutjanus
4.01999998092651
24
Darkfin hind
Cephalopholis urodeta
4.01999998092651
44
Blacksaddle grouper
Epinephelus howlandi
4.01749992370605
98
Snappers
Lutjanidae
4.01000022888184
58
Black and white snapper
Macolor niger
4
300
Sharks rays and skates etc
Sharks or rays and chimaeras
4
221
Giant grouper
Epinephelus lanceolatus
3.99000000953674
180
Conger eels
Muraenesox
3.99000000953674
54
Macolor
Macolor
3.99000000953674
279
Humphead wrasse
Cheilinus undulatus
3.98279094696045
190
Sea basses or groupers and fairy basslets
Serranidae
3.98000001907349
72
Brassy trevally
Caranx papuensis
3.97000002861023
60
Alfonsinos
Beryx
3.95000004768372
91
Green jobfish
Aprion virescens
3.94000005722046
90
Camouflage grouper
Epinephelus polyphekadion
3.91666698455811
43
Scorpionfishes or rockfishes
Scorpaenidae
3.89000010490417
60
Bigeye scad
Selar crumenophthalmus
3.84999990463257
41
Oblique-banded snapper
Pristipomoides zonatus
3.84999990463257
70
Painted sweetlip
Plectorhinchus picus
3.84349989891052
190
Groupers
Epinephelus
3.82999992370605
40
Barred flagtail
Kuhlia mugil
3.8199999332428
82
Longface emperor
Lethrinus olivaceus
3.80999994277954
46
Tomato hind
Cephalopholis sonnerati
3.80666708946228
33
Bigeyes
Priacanthus
3.79999995231628
25
Octopuses
Octopus
3.79250001907349
38
Bigeyes or catalufas
Priacanthidae
3.78999996185303
65
Smalltooth emperor
Lethrinus microdon
3.78999996185303
26
Honeycomb grouper
Epinephelus merra
3.78355598449707
45
Scorpionfishes and flatheads
Scorpaeniformes
3.77125000953674
20
Lefteye flounders
Bothidae
3.76999998092651
33
Blacktip grouper
Epinephelus fasciatus
3.75
43
Glasseye
Heteropriacanthus cruentatus
3.74000000953674
102
Snubnose pompano
Trachinotus blochii
3.70222210884094
28
Cuttlefishes
Sepiida
3.68666696548462
102
Pompanos
Trachinotus
3.67000007629395
64
Yellowlip emperor
Lethrinus xanthochilus
3.64000010490417
81
Crimson jobfish
Pristipomoides filamentosus
3.6324999332428
37
Scads
Decapterus
3.63000011444092
42
Humpback red snapper
Lutjanus gibbus
3.61999988555908
19
Two-lined monocle bream
Scolopsis bilineata
3.59999990463257
28
Cuttlefishes
Sepiidae
3.59999990463257
34
Common bluestripe snapper
Lutjanus kasmira
3.58999991416931
148
Rainbow runner
Elagatis bipinnulata
3.58999991416931
26
Brick soldierfish
Myripristis amaena
3.58588194847107
70
Emperors or scavengers
Lethrinidae
3.57999992370605
68
Octopuses
Octopoda
3.57450008392334
25
Flyingfishes
Exocoetidae
3.56200003623962
15
Swimming crabs
Portunidae
3.55999994277954
22
Pterygotrigla
Pterygotrigla
3.54999995231628
30
Black squirrelfish
Neoniphon opercularis
3.53999996185303
46
Sabre squirrelfish
Sargocentron spiniferum
3.53600001335144
29
Tropical goatfishes
Upeneus
3.53500008583069
12
Cardinalfishes
Apogonidae
3.53143930435181
56
Perch-likes
Perciformes
3.52666664123535
40
Batfishes
Platax
3.51999998092651
20
Whitespot soldierfish
Myripristis woodsi
3.5
50
Filefishes
Cantherhines
3.5
33
Leopard flounder
Bothus pantherinus
3.5
44
Thumbprint emperor
Lethrinus harak
3.5
30
Slender silverbiddy
Gerres oblongus
3.5
37
Indian goatfish
Parupeneus indicus
3.49874997138977
43
Puffers
Tetraodontidae
3.49000000953674
38
Goldflag jobfish
Pristipomoides auricilla
3.49000000953674
43
Pacific yellowtail emperor
Lethrinus atkinsoni
3.48799991607666
30
Squirrelfishes and soldierfishes
Holocentridae
3.46000003814697
91
Painted sweetlips
Diagramma picta
3.45967698097229
75
Wrasses
Labridae
3.45749998092651
55
Goatfishes
Mullidae
3.45000004768372
28
Lattice soldierfish
Myripristis violacea
3.4449999332428
10
Indo-Pacific anchovies
Stolephorus
3.44000005722046
65
Cheilinus
Cheilinus
3.4300000667572
46
Sixfinger threadfin
Polydactylus sexfilis
3.41666698455811
25
Myripristis
Myripristis
3.40000009536743
50
Fusiliers
Caesio
3.40000009536743
50
Large-eye breams
Gymnocranius
3.40000009536743
20
Swims crabs
Portunus
3.40000009536743
29
Blue and gold fusilier
Caesio caerulaurea
3.40000009536743
33
Yellow and blueback fusilier
Caesio teres
3.40000009536743
29
Marr's fusilier
Pterocaesio marri
3.40000009536743
32
Shortfin scad
Decapterus macrosoma
3.40000009536743
28
Shadowfin soldierfish
Myripristis adusta
3.39000010490417
49
Orange-striped emperor
Lethrinus obsoletus
3.36333298683167
48
Diodon
Diodon
3.35863590240479
80
Grunts
Haemulidae
3.33999991416931
21
Shoulderbar soldierfish
Myripristis kuntee
3.32999992370605
26
Dark-banded fusilier
Pterocaesio tile
3.30999994277954
18
Penaeid shrimps
Penaeidae
3.30864906311035
164
Porgies
Sparidae
3.30333304405212
25
Monocle breams
Scolopsis
3.29999995231628
123
Indo-Pacific tarpon
Megalops cyprinoides
3.28999996185303
25
Striped large-eye bream
Gnathodentex aureolineatus
3.27999997138977
56
Naso
Naso
3.27999997138977
150
Stingrays
Dasyatis
3.27999997138977
68
Sleek unicornfish
Naso hexacanthus
3.26999998092651
25
Silver biddies
Gerres
3.26999998092651
12
Shorthead anchovy
Encrasicholina heteroloba
3.26999998092651
35
Yellowstripe goatfish
Mulloidichthys flavolineatus
3.25250005722046
53
Triggerfishes
Balistidae
3.25142908096313
21
Anchovies
Engraulidae
3.24222207069397
16
Butterflyfishes
Chaetodontidae
3.24000000953674
13
Shrimps and prawns
Shrimps andprawns
3.2366669178009
12
Slimys slipmouths or ponyfishes
Leiognathidae
3.22285723686218
12
Slipmouths
Leiognathus
3.20250010490417
12
Silversides
Atherinidae
3.19000005722046
50
Humpnose big-eye bream
Monotaxis grandoculis
3.1589469909668
28
Herrings and shads and sardines and menhadens
Clupeidae
3.14000010490417
40
Spiny lobsters
Palinuridae
3.10500001907349
15
Gobies
Gobiidae
3.0699999332428
25
Common silver-biddy
Gerres oyena
3.06162858009338
11
Gastropods
Gastropoda
3.04500007629395
45
Halfbeaks
Hemiramphus
3.03200006484985
25
Mojarras
Gerreidae
3.00333309173584
49
Filefishes
Monacanthidae
2.99000000953674
28
Epaulette surgeonfish
Acanthurus nigricauda
2.8733332157135
20
Slipper lobsters
Scyllaridae
2.86999988555908
52
Yellowfin surgeonfish
Acanthurus xanthopterus
2.85999989509583
16
Feathered river-garfish
Zenarchopterus dispar
2.82249999046326
33
Halfbeaks
Hemiramphidae
2.77999997138977
21
Convict surgeonfish
Acanthurus triostegus
2.71000003814697
46
Naso caesius
Naso caesius
2.70000004768372
3
Norther shrimps
Pandalidae
2.67000007629395
110
Green humphead parrotfish
Bolbometopon muricatum
2.66249990463257
16
Abudefduf
Abudefduf
2.65000009536743
13
Natantian decapods
Shrimps and prawns
2.59999990463257
44
Lobsters and spiny-rock lobsters
Homaridae and Palinuridae
2.59999990463257
30
Marine crabs
Brachyura
2.59999990463257
40
Tropical spiny lobsters
Panulirus
2.58999991416931
15
Indo-Pacific sergeant
Abudefduf vaigiensis
2.56785702705383
12
Damselfishes
Pomacentridae
2.52500009536743
120
Mullets
Mugilidae
2.50600004196167
8
Sea urchins
Echinoidea
2.34999990463257
25
Kanda
Valamugil engeli
2.3199999332428
46
Orangespine unicornfish
Naso lituratus
2.3199999332428
60
Bluespot mullet
Valamugil seheli
2.27900004386902
45
Surgeonfishes and tangs and unicornfishes
Acanthuridae
2.23000001907349
15
Clams
Bivalvia
2.16000008583069
45
Bignose unicornfish
Naso vlamingii
2.11999988555908
86
Whitemargin unicornfish
Naso annulatus
2.11142897605896
33
Rabbitfishes
Siganidae
2.11142897605896
34
Rabbitfishes
Siganus
2.04999995231628
58
Sea chubs
Kyphosus
2.04999995231628
7
Turbo snails
Turbo
2.03285694122314
29
Acanthurus
Acanthurus
2.01999998092651
43
Eyestripe surgeonfish
Acanthurus dussumieri
2.00461506843567
39
Scarus
Scarus
2.00368404388428
41
Parrotfishes
Scaridae
2
46
Sea cucumbers
Holothuroidea
2
8
Venus clams
Veneridae
2
28
Lined surgeonfish
Acanthurus lineatus
2
20
Striated surgeonfish
Ctenochaetus striatus
2
62
Bluespine unicornfish
Naso unicornis
2
74
Blue-barred parrotfish
Scarus ghobban
2
55
Ember parrotfish
Scarus rubroviolaceus
2
57
Steephead parrotfish
Chlorurus microrhinos
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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