Marine Trophic Index in LME: Southeast U.S. Continental Shelf

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Year	Mean trophic level	Mean max. length (cm)	FiB Index	Expansion factor
1950	2.78	38	0	1
1951	2.83	38.9	0.24	1.27
1952	2.74	37.1	0.09	1.09
1953	2.81	36.1	0.26	1.3
1954	2.86	37.5	0.35	1.42
1955	2.88	38.3	0.38	1.46
1956	2.85	39.4	0.38	1.46
1957	2.88	40.5	0.29	1.34
1958	2.96	44.1	0.51	1.67
1959	2.86	41.5	0.43	1.54
1960	2.85	39.8	0.46	1.58
1961	2.79	41.1	0.28	1.32
1962	2.84	45.8	0.43	1.54
1963	2.85	44.7	0.59	1.8
1964	2.86	49.6	0.49	1.63
1965	2.9	47.2	0.68	1.97
1966	2.92	45.2	0.64	1.9
1967	2.92	41	0.72	2.05
1968	2.82	39.9	0.55	1.73
1969	2.84	41.4	0.63	1.88
1970	2.66	38.8	0.16	1.17
1971	2.72	38.4	0.24	1.27
1972	2.79	41.8	0.4	1.49
1973	2.87	44	0.43	1.54
1974	2.73	42.1	0.25	1.28
1975	2.72	44	0.31	1.36
1976	2.64	39.2	0.18	1.2
1977	2.64	39	0.24	1.27
1978	2.6	38.4	0.31	1.36
1979	2.64	39.4	0.34	1.4
1980	2.65	42	0.51	1.67
1981	2.55	39.2	0.53	1.7
1982	2.49	31.2	0.25	1.28
1983	2.45	29.1	0.14	1.15
1984	2.35	19.1	0.14	1.15
1985	2.49	27.3	0.17	1.19
1986	2.69	32.1	0.32	1.38
1987	2.59	28.8	0.18	1.2
1988	2.6	31.5	0.25	1.28
1989	2.69	35.8	0.26	1.3
1990	2.74	37	0.25	1.28
1991	2.76	39.4	0.34	1.4
1992	2.82	38.4	0.36	1.43
1993	2.78	38.1	0.29	1.34
1994	2.74	37.6	0.59	1.8
1995	2.61	31.3	0.1	1.11
1996	2.68	31.1	-0.01	0.99
1997	2.89	33.5	0.3	1.35
1998	2.75	33	0.26	1.3
1999	2.77	30.2	0.05	1.05
2000	2.6	28.1	0.14	1.15
2001	2.64	30.1	0.11	1.12
2002	2.64	30.9	0.08	1.08
2003	2.65	29.4	0.14	1.15
2004	2.76	33.6	0.19	1.21
2005	2.74	31.2	-0.04	0.96
2006	2.82	31.3	0.11	1.12

TL	SLMax(cm)	Common Name	Scientific Name
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
4.5	342	Longfin mako	Isurus paucus
4.5	156	Greater amberjack	Seriola dumerili
4.5	205	Tarpon	Megalops atlanticus
4.5	150	Black grouper	Mycteroperca bonaci
4.48999977111816	449	Swordfish	Xiphias gladius
4.48999977111816	100	Yellowfin grouper	Mycteroperca venenosa
4.48999977111816	77	Summer flounder	Paralichthys dentatus
4.48000001907349	246	Atlantic white marlin	Tetrapturus albidus
4.47714281082153	367	Billfishes	Istiophoridae
4.46999979019165	107	Scamp	Mycteroperca phenax
4.46000003814697	112	Monkfishes	Lophius
4.44999980926514	192	Largehead hairtail	Trichiurus lepturus
4.42999982833862	376	Atlantic bluefin tuna	Thunnus thynnus
4.40999984741211	115	Common snook	Centropomus undecimalis
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
4.40000009536743	43	Bar jack	Carangoides ruber
4.40000009536743	57	Blue runner	Caranx crysos
4.38500022888184	164	Amberjacks	Seriola
4.38000011444092	346	Atlantic blue marlin	Makaira nigricans
4.36999988555908	172	Common dolphinfish	Coryphaena hippurus
4.35166692733765	123	Cat groupers	Mycteroperca
4.34999990463257	108	Skipjack tuna	Katsuwonus pelamis
4.34749984741211	205	Seerfishes	Scomberomorus
4.34000015258789	231	Yellowfin tuna	Thunnus albacares
4.34000015258789	164	Striped sea-bass	Morone saxatilis
4.34000015258789	200	Escolar	Lepidocybium flavobrunneum
4.32999992370605	60	Vermilion snapper	Rhomboplites aurorubens
4.30999994277954	136	Albacore	Thunnus alalunga
4.30999994277954	164	Cobia	Rachycentron canadum
4.28000020980835	392	Shortfin mako	Isurus oxyrinchus
4.2622218132019	150	Mackerels tunas and bonitos	Scombridae
4.26000022888184	62	Silver hake	Merluccius bilinearis
4.24176502227783	207	Requiem sharks	Carcharhinidae
4.23999977111816	226	Blacktip shark	Carcharhinus limbatus
4.2350001335144	60	Frigate tuna	Auxis
4.23199987411499	90	Dogfish sharks	Squalidae
4.21999979019165	200	Opah	Lampris guttatus
4.20888900756836	90	Weakfishes	Cynoscion
4.19999980926514	90	Atlantic bonito	Sarda sarda
4.1399998664856	80	American flounders	Paralichthys
4.1399998664856	100	Nassau grouper	Epinephelus striatus
4.13424253463745	32	Squids	Teuthida
4.13000011444092	93	Blackfin tuna	Thunnus atlanticus
4.12428617477417	102	Jacks	Caranx
4.11999988555908	29	Puffers	Sphoeroides
4.11999988555908	60	Hickory shad	Alosa mediocris
4.07999992370605	246	Oilfish	Ruvettus pretiosus
4.07000017166138	127	Red drum	Sciaenops ocellatus
4.05230808258057	164	Jacks and pompanos	Carangidae
4.05000019073486	729	Sharks and rays	Elasmobranchii
4.03999996185303	122	Snowy grouper	Hyporthodus niveatus
4.02400016784668	98	Snappers	Lutjanus
4.01749992370605	98	Snappers	Lutjanidae
4.01000022888184	82	Northern red snapper	Lutjanus campechanus
4	300	Sharks rays and skates etc	Sharks or rays and chimaeras
4	110	Atlantic tripletail	Lobotes surinamensis
4	25	American harvestfish	Peprilus paru
4	23	Blue crab	Callinectes sapidus
3.99000000953674	25	Common squids	Loligo
3.99000000953674	85	Yellowtail snapper	Ocyurus chrysurus
3.98279094696045	190	Sea basses or groupers and fairy basslets	Serranidae
3.98000001907349	49	Black seabass	Centropristis striata
3.98000001907349	75	Spotted weakfish	Cynoscion nebulosus
3.98000001907349	29	Northern shortfin squid	Illex illecebrosus
3.97000002861023	60	Alfonsinos	Beryx
3.97000002861023	230	Warsaw grouper	Hyporthodus nigritus
3.95000004768372	82	Ladyfish	Elops saurus
3.94000005722046	30	Spot croaker	Leiostomus xanthurus
3.92333340644836	115	Snooks	Centropomus
3.91417288780212	80	Cods	Gadiformes
3.89000010490417	139	Black drum	Pogonias cromis
3.84349989891052	190	Groupers	Epinephelus
3.82999992370605	172	Wreckfish	Polyprion americanus
3.8199999332428	49	Lane snapper	Lutjanus synagris
3.8199999332428	115	Yellowedge grouper	Hyporthodus flavolimbatus
3.80988097190857	27	Cephalopods	Cephalopoda
3.80666708946228	33	Bigeyes	Priacanthus
3.78333306312561	28	Harvestfishes	Peprilus
3.76999998092651	80	Gray weakfish	Cynoscion regalis
3.76205897331238	200	Drums or croakers	Sciaenidae
3.70222210884094	28	Cuttlefishes	Sepiida
3.68666696548462	102	Pompanos	Trachinotus
3.67000007629395	102	Red grouper	Epinephelus morio
3.65000009536743	145	Gag	Mycteroperca microlepis
3.65000009536743	75	Common seabream	Pagrus pagrus
3.61999988555908	102	Tilefishes	Malacanthidae
3.61999988555908	50	Atlantic goldeye tilefish	Caulolatilus chrysops
3.6175000667572	50	Butterfishes	Stromateidae
3.61374998092651	205	Skates and rays	Rajiformes
3.57999992370605	68	Octopuses	Octopoda
3.57180309295654	50	Flatfishes	Pleuronectiformes
3.54999995231628	32	Common octopus	Octopus vulgaris
3.53143930435181	56	Perch-likes	Perciformes
3.52999997138977	75	Sheepshead seabream	Archosargus probatocephalus
3.51166701316834	40	Porgies	Calamus
3.50999999046326	38	Alewife	Alosa pseudoharengus
3.50999999046326	31	Longfin squid	Loligo pealeii
3.5	102	Crevalle jack	Caranx hippos
3.5	52	Florida pompano	Trachinotus carolinus
3.47857093811035	62	Sea catfishes	Ariidae
3.45749998092651	55	Goatfishes	Mullidae
3.45000004768372	102	Great northern tilefish	Lopholatilus chamaeleonticeps
3.41000008583069	75	Bearded brotula	Brotula barbata
3.35863590240479	80	Grunts	Haemulidae
3.30999994277954	18	Penaeid shrimps	Penaeidae
3.30999994277954	41	Atlantic croaker	Micropogonias undulatus
3.30864906311035	164	Porgies	Sparidae
3.28999996185303	38	Gulf kingcroaker	Menticirrhus littoralis
3.26999998092651	25	Silver biddies	Gerres
3.25999999046326	60	Black driftfish	Hyperoglyphe bythites
3.25250005722046	53	Triggerfishes	Balistidae
3.25142908096313	21	Anchovies	Engraulidae
3.24000000953674	25	Herrings	Clupeiformes
3.23000001907349	31	Atlantic thread herring	Opisthonema oglinum
3.21000003814697	25	Round sardinella	Sardinella aurita
3.20000004768372	45	Caribbean spiny lobster	Panulirus argus
3.19000005722046	62	American shad	Alosa sapidissima
3.08999991416931	52	Chub mackerel	Scomber japonicus
3.07999992370605	39	White perch	Morone americana
3.06162858009338	11	Gastropods	Gastropoda
3.04999995231628	28	Barred grunt	Conodon nobilis
3.04500007629395	45	Halfbeaks	Hemiramphus
3.03200006484985	25	Mojarras	Gerreidae
3	25	Crustaceans	Crustacea
3	14	Northern pink shrimp	Farfantepenaeus duorarum
2.98000001907349	60	Horseshoe crab	Limulus polyphemus
2.8733332157135	20	Slipper lobsters	Scyllaridae
2.82999992370605	50	Winter flounder	Pseudopleuronectes americanus
2.79999995231628	19	Northern brown shrimp	Farfantepenaeus aztecus
2.70000004768372	34	Penaeus shrimps	Penaeus
2.70000004768372	14	Atlantic seabob	Xiphopenaeus kroyeri
2.70000004768372	19	Northern white shrimp	Litopenaeus setiferus
2.70000004768372	24	Redspotted shrimp	Farfantepenaeus brasiliensis
2.65000009536743	13	Natantian decapods	Shrimps and prawns
2.59999990463257	30	Marine crabs	Brachyura
2.59999990463257	40	Tropical spiny lobsters	Panulirus
2.59999990463257	11	Black stone crab	Menippe mercenaria
2.59999990463257	17	Red deepsea crab	Chaceon quinquedens
2.52500009536743	120	Mullets	Mugilidae
2.38000011444092	15	Starfishes	Starfish and other echinoderms
2.36999988555908	50	Bobo mullet	Joturus pichardi
2.26999998092651	15	Clams cockles and arkshells	Clams or cockles and arkshells
2.25	41	Atlantic menhaden	Brevoortia tyrannus
2.20000004768372	15	Rock shrimp	Sicyonia brevirostris
2.20000004768372	24	Royal red shrimp	Pleoticus robustus
2.13000011444092	120	Flathead mullet	Mugil cephalus
2	10	Scallops	Pectinidae
2	8	Venus clams	Veneridae
2	25	Cupped oysters	Crassostrea
2	23	Stromboid conchs	Strombus
2	43	American gizzard shad	Dorosoma cepedianum
2	10	American cupped oyster	Crassostrea virginica
2	15	American sea scallop	Placopecten magellanicus
2	9	Atlantic bay scallop	Argopecten irradians
2	8	Calico scallop	Argopecten gibbus
2	9	Northern quahog	Mercenaria mercenaria

FiB index inputs
Reference year: Transfer efficiency:

Method