Marine Trophic Index in High seas - Atlantic, Northwest

Compute regression

Start year: End year:

Compute regression

Start year: End year:

Year	Mean trophic level	Mean max. length (cm)	FiB Index	Expansion factor
1950	4.05	137	0	1
1951	3.98	121.2	0.12	1.13
1952	3.91	112.1	0.5	1.65
1953	3.86	108.6	0.61	1.84
1954	3.86	106.1	1.09	2.97
1955	3.83	102.5	1.12	3.06
1956	3.84	104.1	1.21	3.35
1957	3.83	103.7	1.21	3.35
1958	3.79	90.6	1.29	3.63
1959	3.78	90.1	1.34	3.82
1960	3.87	111.7	1.52	4.57
1961	3.9	117.3	1.53	4.62
1962	3.83	117.3	1.29	3.63
1963	4.18	158.2	1.63	5.1
1964	4.15	152.5	1.74	5.7
1965	4.1	140.5	1.89	6.62
1966	4.07	137.2	1.74	5.7
1967	4.13	147.7	2.13	8.41
1968	4.09	142.8	1.95	7.03
1969	4.04	134.2	1.59	4.9
1970	4	133.6	1.48	4.39
1971	3.99	128.7	1.59	4.9
1972	3.97	122.8	1.76	5.81
1973	3.75	93.7	1.16	3.19
1974	3.74	91.4	1.07	2.92
1975	3.64	79.4	0.78	2.18
1976	3.61	75.3	0.67	1.95
1977	3.69	77.1	0.92	2.51
1978	3.85	101.4	0.99	2.69
1979	3.97	108.4	1.32	3.74
1980	3.88	104.7	0.69	1.99
1981	3.9	110.2	0.82	2.27
1982	3.9	112.7	0.81	2.25
1983	3.9	113.6	0.79	2.2
1984	3.9	113.2	0.88	2.41
1985	3.86	108.2	1.02	2.77
1986	3.87	109	1.3	3.67
1987	3.85	102.7	1.56	4.76
1988	3.84	105.7	1.49	4.44
1989	3.87	106.8	1.54	4.66
1990	3.76	91	1.36	3.9
1991	3.89	102.6	1.5	4.48
1992	3.95	91.1	1.33	3.78
1993	3.72	76.2	0.79	2.2
1994	3.45	62.3	0.51	1.67
1995	3.11	53.4	-0.44	0.64
1996	3.07	47	-0.49	0.61
1997	3.2	52.5	-0.27	0.76
1998	3.21	52.1	-0.31	0.73
1999	3.17	51.6	-0.27	0.76
2000	3.15	49.7	-0.25	0.78
2001	3.08	47.3	-0.32	0.73
2002	3.17	49.9	-0.31	0.73
2003	3	43.1	-0.4	0.67
2004	2.95	40	-0.62	0.54
2005	3.01	48.4	-0.66	0.52
2006	2.99	42.5	-0.77	0.46

Show/Hide tabular data

TL	SLMax(cm)	Common Name	Scientific Name
4.53000020980835	219	Atlantic halibut	Hippoglossus hippoglossus
4.50750017166138	287	Mackerel sharks and white sharks	Lamnidae
4.5	279	Indo-Pacific sailfish	Istiophorus platypterus
4.5	151	King mackerel	Scomberomorus cavalla
4.5	77	Spanish mackerel	Scomberomorus maculatus
4.5	219	Bigeye tuna	Thunnus obesus
4.5	98	Bluefish	Pomatomus saltatrix
4.48999977111816	449	Swordfish	Xiphias gladius
4.48999977111816	98	American angler	Lophius americanus
4.48000001907349	246	Atlantic white marlin	Tetrapturus albidus
4.48000001907349	66	Greenland halibut	Reinhardtius hippoglossoides
4.48000001907349	127	Blue ling	Molva dypterygia
4.46000003814697	112	Monkfishes	Lophius
4.42999982833862	376	Atlantic bluefin tuna	Thunnus thynnus
4.42999982833862	123	Atlantic salmon	Salmo salar
4.42000007629395	186	Atlantic cod	Gadus morhua
4.40000009536743	100	Little tunny	Euthynnus alletteratus
4.38500022888184	164	Amberjacks	Seriola
4.38000011444092	346	Atlantic blue marlin	Makaira nigricans
4.38000011444092	107	Saithe	Pollachius virens
4.34999990463257	108	Skipjack tuna	Katsuwonus pelamis
4.34428596496582	376	Tuna	Thunnus
4.34000015258789	54	Frigate tuna	Auxis thazard thazard
4.34000015258789	231	Yellowfin tuna	Thunnus albacares
4.30999994277954	136	Albacore	Thunnus alalunga
4.30999994277954	164	Cobia	Rachycentron canadum
4.30000019073486	130	Piked dogfish	Squalus acanthias
4.28000020980835	392	Shortfin mako	Isurus oxyrinchus
4.2662501335144	125	Hakes	Merluccius
4.2622218132019	150	Mackerels tunas and bonitos	Scombridae
4.26000022888184	79	Arctic char	Salvelinus alpinus alpinus
4.26000022888184	62	Silver hake	Merluccius bilinearis
4.23999977111816	289	Blue shark	Prionace glauca
4.2350001335144	60	Frigate tuna	Auxis
4.23199987411499	90	Dogfish sharks	Squalidae
4.23199987411499	130	Dogfishes	Squalus
4.21000003814697	277	Porbeagle	Lamna nasus
4.19999980926514	90	Atlantic bonito	Sarda sarda
4.19999980926514	98	White hake	Urophycis tenuis
4.18833303451538	606	Bramble and sleeper and dogfish sharks	Squaliformes
4.1399998664856	80	American flounders	Paralichthys
4.13424253463745	32	Squids	Teuthida
4.11999988555908	29	Puffers	Sphoeroides
4.11999988555908	60	Hickory shad	Alosa mediocris
4.09999990463257	90	Char	Salvelinus
4.09000015258789	82	Haddock	Melanogrammus aeglefinus
4.07999992370605	87	Ocean perch	Sebastes marinus
4.05230808258057	164	Jacks and pompanos	Carangidae
4.05000019073486	729	Sharks and rays	Elasmobranchii
4.01000022888184	41	Blue whiting	Micromesistius poutassou
4	89	Salmon and trout	Salmo
4	98	Tusk	Brosme brosme
4	25	American harvestfish	Peprilus paru
3.99000000953674	33	Rough scad	Trachurus lathami
3.98749995231628	61	Alfonsinos	Berycidae
3.98000001907349	29	Northern shortfin squid	Illex illecebrosus
3.97000002861023	25	American butterfish	Peprilus triacanthus
3.96666693687439	25	Sea robins	Prionotus
3.87538504600525	82	Grenadiers or rattails	Macrouridae
3.81625008583069	205	Skates	Rajidae
3.7960000038147	83	Skates	Raja
3.79384589195251	87	Redfishes	Sebastes
3.76999998092651	80	Gray weakfish	Cynoscion regalis
3.75	180	Northern wolffish	Anarhichas denticulatus
3.71000003814697	35	Sculpins	Myoxocephalus
3.65000009536743	33	Deepwater redfish	Sebastes mentella
3.65000009536743	67	American plaice	Hippoglossoides platessoides
3.61999988555908	82	Onion-eye grenadier	Macrourus berglax
3.6175000667572	50	Butterfishes	Stromateidae
3.61374998092651	205	Skates and rays	Rajiformes
3.59999990463257	38	Blueback shad	Alosa aestivalis
3.58333325386047	82	Grenadiers	Macrourus
3.57999992370605	75	Blue antimora	Antimora rostrata
3.57180309295654	50	Flatfishes	Pleuronectiformes
3.53999996185303	106	Roundnose grenadier	Coryphaenoides rupestris
3.53143930435181	56	Perch-likes	Perciformes
3.50999999046326	38	Alewife	Alosa pseudoharengus
3.50999999046326	31	Longfin squid	Loligo pealeii
3.5	102	Crevalle jack	Caranx hippos
3.5	150	Barndoor skate	Dipturus laevis
3.49874997138977	43	Puffers	Tetraodontidae
3.45000004768372	102	Great northern tilefish	Lopholatilus chamaeleonticeps
3.44000005722046	100	Baird's slickhead	Alepocephalus bairdii
3.42000007629395	90	Ocean pout	Zoarces americanus
3.40000009536743	50	Little skate	Leucoraja erinacea
3.35863590240479	80	Grunts	Haemulidae
3.34999990463257	36	Argentines	Argentina
3.34500002861023	148	Wolffish	Anarhichas
3.32999992370605	75	Tautog	Tautoga onitis
3.29999995231628	25	Eelpouts	Lycodes
3.24000000953674	148	Spotted wolffish	Anarhichas minor
3.23000001907349	40	Atlantic herring	Clupea harengus
3.22000002861023	53	Yellowtail flounder	Limanda ferruginea
3.20000004768372	729	Basking shark	Cetorhinus maximus
3.1800000667572	46	Atlantic mackerel	Scomber scombrus
3.1800000667572	12	Atlantic silverside	Menidia menidia
3.1589469909668	28	Herrings and shads and sardines and menhadens	Clupeidae
3.15000009536743	12	Lampfish	Notoscopelus
3.15000009536743	16	Capelin	Mallotus villosus
3.14000010490417	60	Witch flounder	Glyptocephalus cynoglossus
3.11209011077881	15	Sand lances	Ammodytidae
3.11209011077881	15	Sandlances	Ammodytes
3	15	Whelks	Busycon
3	164	Ling	Molva molva
3	29	Rainbow smelt	Osmerus mordax mordax
2.70000004768372	34	Penaeus shrimps	Penaeus
2.59999990463257	30	Marine crabs	Brachyura
2.59999990463257	16	Pandalus shrimps	Pandalus
2.59999990463257	17	Red deepsea crab	Chaceon quinquedens
2.52500009536743	120	Mullets	Mugilidae
2.46000003814697	14	Northern prawn	Pandalus borealis
2.29999995231628	16	Lithodes	Lithodes
2.29999995231628	20	Queen crab	Chionoecetes opilio
2.25	41	Atlantic menhaden	Brevoortia tyrannus
2.23000001907349	15	Clams	Bivalvia
2.09999990463257	8	Sea urchins	Strongylocentrotus
2	10	Scallops	Pectinidae
2	2	Periwinkles	Littorina
2	43	American gizzard shad	Dorosoma cepedianum
2	15	American sea scallop	Placopecten magellanicus
2	9	Atlantic bay scallop	Argopecten irradians
2	13	Atlantic surf clam	Spisula solidissima
2	8	Blue mussel	Mytilus edulis
2	108	Iceland scallop	Chlamys islandica
2	9	Northern quahog	Mercenaria mercenaria
2	11	Ocean quahog	Arctica islandica
2	14	Stimpsons surf clam	Mactromeris polynyma

Show/Hide species list

FiB index inputs
Reference year: Transfer efficiency:

Method