Ecology Summary - Hapalogenys nigripinnis

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Main Ref.	Masuda, H. and G.R. Allen, 1993
Remarks	Found in river mouths and coastal sandy bottoms of less than 100 m depth. Although a small specimen was collect ed in a river mouth, other similarly-sized specimens were usually captured by a small trawl within 30-50 m over sandy bottoms. According to observations, the species seems to school over sandy bottoms near the rocky shore from summer to early winter. Often, similarly-sized specimens were observed in set net captures within 15-50 meters (Ref. 56360).

Main Ref.

Masuda, H. and G.R. Allen, 1993

Remarks

Found in river mouths and coastal sandy bottoms of less than 100 m depth. Although a small specimen was collect ed in a river mouth, other similarly-sized specimens were usually captured by a small trawl within 30-50 m over sandy bottoms. According to observations, the species seems to school over sandy bottoms near the rocky shore from summer to early winter. Often, similarly-sized specimens were observed in set net captures within 15-50 meters (Ref. 56360).

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 Hapalogenys nigripinnis may be found.

Habitat

Substrate	Hard Bottom;
Substrate Ref.
Special habitats
Special habitats Ref.

Associations

Ref.
Associations
Associated with
Association remarks
Parasitism

Feeding

Feeding type	mainly animals (troph. 2.8 and up)
Feeding type Ref.	Masuda, H. and G.R. Allen, 1993
Feeding habit	hunting macrofauna (predator)
Feeding habit Ref.	Masuda, H. and G.R. Allen, 1993

Trophic Level(s)

Estimation method	Original sample		Unfished population		Remark
Estimation method	Troph	s.e.	Troph	s.e.	Remark
From diet composition
From individual food items	3.97	0.65			Trophic level estimated from a number of food items using a randomized resampling routine.
Ref.

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