Marine Trophic Index in the waters of Sri Lanka

High seas accessed by Sri Lanka: 1976

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 Sri Lanka: 1976

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	3.83	114.2	0	1
1951	3.88	129.6	0.27	1.31
1952	3.85	117.5	0.21	1.23
1953	3.85	121.5	0.09	1.09
1954	3.8	125.4	0.22	1.25
1955	3.76	112.5	0.16	1.17
1956	3.63	95.9	0.07	1.07
1957	3.71	113.2	0.16	1.17
1958	3.73	114.8	0.37	1.45
1959	3.74	113	0.51	1.67
1960	3.78	118.4	0.84	2.32
1961	3.71	106.7	0.82	2.27
1962	3.74	109.6	1.07	2.92
1963	3.86	130.2	1.32	3.74
1964	3.73	107.3	1.22	3.39
1965	3.84	120.7	1.26	3.53
1966	3.85	121.5	1.33	3.78
1967	3.93	139.6	1.59	4.9
1968	3.9	131.2	1.66	5.26
1969	3.94	138.1	1.77	5.87
1970	3.9	132	1.58	4.85
1971	3.89	129.5	1.36	3.9
1972	3.88	125.3	1.53	4.62
1973	3.92	135.8	1.73	5.64
1974	3.85	125.8	1.61	5
1975	3.78	112.8	1.47	4.35
1976	3.81	118.2	1.47	4.35
1977	3.74	105.3	1.12	3.06
1978	3.7	102.7	0.86	2.36
1979	3.71	108.1	0.57	1.77
1980	3.73	114.6	0.28	1.32
1981	3.79	131.1	0.39	1.48
1982	3.76	121.5	0.37	1.45
1983	3.77	120.3	0.38	1.46
1984	3.75	120.2	0.06	1.06
1985	3.88	146.1	0.12	1.13
1986	3.89	146.5	0.17	1.19
1987	3.89	146.5	0.21	1.23
1988	3.88	146.4	0.22	1.25
1989	3.89	146.1	0.27	1.31
1990	3.9	146.5	0.21	1.23
1991	3.89	147.4	0.35	1.42
1992	3.87	142.7	0.37	1.45
1993	3.94	158.7	0.78	2.18
1994	3.99	168.4	0.97	2.64
1995	3.96	158.4	0.83	2.29
1996	3.97	157.7	0.87	2.39
1997	3.96	150.8	0.79	2.2
1998	3.99	157.3	0.97	2.64
1999	3.92	143.8	0.67	1.95
2000	3.96	147.7	0.78	2.18
2001	3.89	134.6	0.54	1.72
2002	3.85	129.7	0.52	1.68
2003	3.75	114.6	0.33	1.39
2004	3.73	110	0.26	1.3
2005	3.83	124.2	-0.27	0.76
2006	3.67	97.4	-0.21	0.81

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	74	Streaked seerfish	Scomberomorus lineolatus
4.5	219	Bigeye tuna	Thunnus obesus
4.48999977111816	449	Swordfish	Xiphias gladius
4.47714281082153	367	Billfishes	Istiophoridae
4.46999979019165	93	Kawakawa	Euthynnus affinis
4.46000003814697	367	Black marlin	Makaira indica
4.46000003814697	410	Indo-Pacific blue marlin	Makaira mazara
4.40000009536743	227	Wahoo	Acanthocybium solandri
4.34999990463257	108	Skipjack tuna	Katsuwonus pelamis
4.34749984741211	205	Seerfishes	Scomberomorus
4.34000015258789	231	Yellowfin tuna	Thunnus albacares
4.30999994277954	136	Albacore	Thunnus alalunga
4.28000020980835	71	Indo-Pacific king mackerel	Scomberomorus guttatus
4.2622218132019	150	Mackerels tunas and bonitos	Scombridae
4.2350001335144	60	Frigate tuna	Auxis
4.19999980926514	238	Silky shark	Carcharhinus falciformis
4.13424253463745	32	Squids	Teuthida
4.05999994277954	126	Longtail tuna	Thunnus tonggol
4.05230808258057	164	Jacks and pompanos	Carangidae
4	300	Sharks rays and skates etc	Sharks or rays and chimaeras
3.59999990463257	28	Cuttlefishes	Sepiidae
3.53143930435181	56	Perch-likes	Perciformes
3.47857093811035	62	Sea catfishes	Ariidae
3.30864906311035	164	Porgies	Sparidae
3.24000000953674	25	Herrings	Clupeiformes
3	25	Crustaceans	Crustacea
2.65000009536743	13	Natantian decapods	Shrimps and prawns
2	46	Sea cucumbers	Holothuroidea

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FiB index inputs
Reference year: Transfer efficiency:

Method

Catch reconstruction:

Not yet available
Available but not yet incorporated (1) report
Partially available and incorporated
Available and incorporated