Ecology Summary - Gerres filamentosus

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Main Ref.	Blaber, S.J.M., 1980
Remarks	Occur in inshore waters of the continental shelf (Ref. 75154). Primarily marine but enter fresh water (Ref.4967). Marine species that may enter lakes (Ref. 4323) and lower freshwater reaches of rivers (Ref. 12915). Juveniles are found in brackish mangrove estuaries and sometimes enter fresh water (Ref. 2847). Schooling species (Ref. 75154). Feed on small crustaceans, polychaetes and forams on sand or muddy-sand bottoms (Ref. 12915). Inhabits shallow waters. Tolerance of low salinities enables its presence in estuaries. Forms small shoals. Feeds on amphipods, polychaetes, crabs and shrimp (Ref. 9773).

Main Ref.

Blaber, S.J.M., 1980

Remarks

Occur in inshore waters of the continental shelf (Ref. 75154). Primarily marine but enter fresh water (Ref.4967). Marine species that may enter lakes (Ref. 4323) and lower freshwater reaches of rivers (Ref. 12915). Juveniles are found in brackish mangrove estuaries and sometimes enter fresh water (Ref. 2847). Schooling species (Ref. 75154). Feed on small crustaceans, polychaetes and forams on sand or muddy-sand bottoms (Ref. 12915). Inhabits shallow waters. Tolerance of low salinities enables its presence in estuaries. Forms small shoals. Feeds on amphipods, polychaetes, crabs and shrimp (Ref. 9773).

Aquatic zones / Water bodies

	Marine - Neritic	Marine - Oceanic	Brackishwater	Freshwater
Marine zones / Brackish and freshwater bodies	supra-littoral zone littoral zone sublittoral zone	epipelagic mesopelagic epipelagic abyssopelagic hadopelagic	estuaries/lagoons/brackish seas mangroves marshes/swamps	rivers/streams lakes/ponds caves exclusively in caves

Highighted items on the list are where Gerres filamentosus may be found.

Habitat

Substrate	Benthic; Soft Bottom: sand; silt; mud; Hard Bottom: rocky;
Substrate Ref.	Hoese, D.F., D.J. Bray, J.R. Paxton and G.R. Allen, 2006
Special habitats	Beds: sea grass; Coral Reefs;
Special habitats Ref.	Nguyen, N.T. and V.Q. Nguyen, 2006

Associations

Ref.
Associations	shoaling;
Associated with
Association remarks
Parasitism

Feeding

Feeding type	mainly animals (troph. 2.8 and up)
Feeding type Ref.	Blaber, S.J.M., 1980
Feeding habit	hunting macrofauna (predator)
Feeding habit Ref.	Blaber, S.J.M., 1980

Trophic Level(s)

Estimation method	Original sample		Unfished population		Remark
Estimation method	Troph	s.e.	Troph	s.e.	Remark
From diet composition	3.34	0.20			Troph of juv./adults from 1 study.
From individual food items	3.46	0.33			Trophic level estimated from a number of food items using a randomized resampling routine.
Ref.	Kulbicki, M., Y.-M. Bozec, P. Labrosse, Y. Letourneur, G. Mou-Tham and L. Wantiez, 2005

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