Marine Trophic Index in the waters of Eritrea

High seas accessed by Eritrea: 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 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 Eritrea: 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.

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Start year: End year:

Year	Mean trophic level	Mean max. length (cm)	FiB Index	Expansion factor
1950	3.24	25	0	1
1951	3.24	25	0	1
1952	3.24	25	0.41	1.51
1953	3.24	25	0.41	1.51
1954	3.26	29.8	0.47	1.6
1955	3.31	45.3	0.96	2.61
1956	3.34	51.8	1.05	2.86
1957	3.28	37	1.07	2.92
1958	3.29	41.1	1.1	3
1959	3.3	42.8	1.13	3.1
1960	3.23	24.8	1.02	2.77
1961	3.23	24.8	1.09	2.97
1962	3.21	24.4	1.08	2.94
1963	3.22	24.7	1.23	3.42
1964	3.25	35.2	1.67	5.31
1965	3.24	30.6	1.95	7.03
1966	3.3	55.9	2.08	8
1967	3.32	64.5	2.11	8.25
1968	3.3	58.1	1.95	7.03
1969	3.29	54.1	1.91	6.75
1970	3.29	56	2.11	8.25
1971	3.34	66.3	2.38	10.8
1972	3.31	50	1.96	7.1
1973	3.37	70.8	0.48	1.62
1974	3.34	59.4	0.92	2.51
1975	3.25	29.1	0.04	1.04
1976	3.41	98.7	-1.3	0.27
1977	4	300	-3.21	0.04
1978	NaN	NaN	NaN	NaN
1979	NaN	NaN	NaN	NaN
1980	3.16	23.4	-1.97	0.14
1981	3.24	25	-2.31	0.1
1982	3.24	25	-2.3	0.1
1983	3.26	27.6	-2.25	0.11
1984	3.34	44.7	-1.57	0.21
1985	3.38	50.9	-1.62	0.2
1986	3.37	52.1	-1.48	0.23
1987	3.38	54.2	-1.63	0.2
1988	4.39	275.7	-0.84	0.43
1989	4.41	275.5	-1.32	0.27
1990	4.35	249.2	-0.59	0.55
1991	4.34	252.9	-0.64	0.53
1992	4.38	259.5	-0.3	0.74
1993	3.86	101.3	1.73	5.64
1994	3.82	70.6	2.24	9.39
1995	3.61	87.8	2.12	8.33
1996	3.9	130.1	2.01	7.46
1997	4.13	161.3	1.37	3.94
1998	4.04	150.1	1.62	5.05
1999	3.94	83	2.85	17.29
2000	3.92	91.7	3.42	30.57
2001	3.87	81.1	2.95	19.11
2002	4.02	85.8	3.16	23.57
2003	4.09	109.3	3.19	24.29
2004	4.06	76.1	3.21	24.78
2005	4.07	70.7	2.63	13.87
2006	3.95	74.7	3.13	22.87

Show/Hide tabular data

TL	SLMax(cm)	Common Name	Scientific Name
4.57999992370605	287	Striped marlin	Tetrapturus audax
4.5	279	Indo-Pacific sailfish	Istiophorus platypterus
4.5	205	Narrow-barred Spanish mackerel	Scomberomorus commerson
4.5	219	Bigeye tuna	Thunnus obesus
4.48999977111816	449	Swordfish	Xiphias gladius
4.47714281082153	367	Billfishes	Istiophoridae
4.46999979019165	100	Queenfishes	Scomberoides
4.46999979019165	93	Kawakawa	Euthynnus affinis
4.46500015258789	122	Needlefishes	Tylosurus
4.46000003814697	367	Black marlin	Makaira indica
4.46000003814697	410	Indo-Pacific blue marlin	Makaira mazara
4.40333318710327	179	Barracudas	Sphyraena
4.40000009536743	227	Wahoo	Acanthocybium solandri
4.3899998664856	52	Indian spiny turbot	Psettodes erumei
4.34999990463257	108	Skipjack tuna	Katsuwonus pelamis
4.34000015258789	231	Yellowfin tuna	Thunnus albacares
4.30999994277954	136	Albacore	Thunnus alalunga
4.30999994277954	164	Cobia	Rachycentron canadum
4.29699993133545	56	Lizardfishes	Synodontidae
4.2622218132019	150	Mackerels tunas and bonitos	Scombridae
4.24176502227783	207	Requiem sharks	Carcharhinidae
4.2350001335144	60	Frigate tuna	Auxis
4.13424253463745	32	Squids	Teuthida
4.05999994277954	126	Longtail tuna	Thunnus tonggol
4.05230808258057	164	Jacks and pompanos	Carangidae
4.02400016784668	98	Snappers	Lutjanus
4.01749992370605	98	Snappers	Lutjanidae
4	300	Sharks rays and skates etc	Sharks or rays and chimaeras
3.98279094696045	190	Sea basses or groupers and fairy basslets	Serranidae
3.90000009536743	87	Flatheads	Platycephalidae
3.84349989891052	190	Groupers	Epinephelus
3.8199999332428	66	Minstrel sweetlip	Plectorhinchus schotaf
3.80666708946228	33	Bigeyes	Priacanthus
3.77125000953674	20	Lefteye flounders	Bothidae
3.72000002861023	29	Threadfin breams	Nemipterus
3.69749999046326	163	Guitarfishes	Rhinobatidae
3.59999990463257	28	Cuttlefishes	Sepiidae
3.58588194847107	70	Emperors or scavengers	Lethrinidae
3.57428574562073	30	Spadefishes and batfishes and scats	Ephippidae
3.53600001335144	29	Tropical goatfishes	Upeneus
3.52666664123535	40	Batfishes	Platax
3.47857093811035	62	Sea catfishes	Ariidae
3.45749998092651	55	Goatfishes	Mullidae
3.42000007629395	61	Silver grunt	Pomadasys argenteus
3.40000009536743	20	Swims crabs	Portunus
3.39000010490417	50	Twobar seabream	Acanthopagrus bifasciatus
3.35863590240479	80	Grunts	Haemulidae
3.30864906311035	164	Porgies	Sparidae
3.25250005722046	53	Triggerfishes	Balistidae
3.24000000953674	25	Herrings	Clupeiformes
3.2366669178009	12	Slimys slipmouths or ponyfishes	Leiognathidae
3.19000005722046	32	Indian mackerel	Rastrelliger kanagurta
3.14000010490417	40	Spiny lobsters	Palinuridae
3.08999991416931	52	Chub mackerel	Scomber japonicus
2.85666704177856	45	Angelfishes	Pomacanthidae
2.76699995994568	21	Sardinella	Sardinella
2.70000004768372	34	Penaeus shrimps	Penaeus
2.65000009536743	13	Natantian decapods	Shrimps and prawns
2.59999990463257	30	Marine crabs	Brachyura
2.52500009536743	120	Mullets	Mugilidae
2.11142897605896	34	Rabbitfishes	Siganus
2.00368404388428	41	Parrotfishes	Scaridae

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FiB index inputs
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Method

Catch reconstruction:

Not yet available
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