Ecology Summary - Phycis chesteri

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Main Ref.	Langton, R.W. and R.E. Bowman, 1980
Remarks	Found curled in depressions next to rubble at 500-630 m; individuals actively swimming over the bottom possibly using their pelvic fins to detect prey. Exhibit depth and temperature preference. Larger fish collected at greater depths, and there appears to be a bathymetric segregation between small demersal juveniles and adults, typical of gadids (Ref. 86779). Epibenthic (Ref. 58426). Most abundant between 360 and 800 m. Feeds mostly on crustaceans but also on mollusks and fishes (Ref. 1371).

Main Ref.

Langton, R.W. and R.E. Bowman, 1980

Remarks

Found curled in depressions next to rubble at 500-630 m; individuals actively swimming over the bottom possibly using their pelvic fins to detect prey. Exhibit depth and temperature preference. Larger fish collected at greater depths, and there appears to be a bathymetric segregation between small demersal juveniles and adults, typical of gadids (Ref. 86779). Epibenthic (Ref. 58426). Most abundant between 360 and 800 m. Feeds mostly on crustaceans but also on mollusks and fishes (Ref. 1371).

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 Phycis chesteri may be found.

Habitat

Substrate
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.	Langton, R.W. and R.E. Bowman, 1980
Feeding habit	hunting macrofauna (predator)
Feeding habit Ref.	Langton, R.W. and R.E. Bowman, 1980

Trophic Level(s)

Estimation method	Original sample		Unfished population		Remark
Estimation method	Troph	s.e.	Troph	s.e.	Remark
From diet composition	3.17		3.15	0.32	Troph of adults from 1 study.
From individual food items	3.93	0.57			Trophic level estimated from a number of food items using a randomized resampling routine.
Ref.	Bowman, R.E., C.E. Stillwell, W.L. Michaels and M.D. Grosslein, 2000

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