Ecology Summary - Sardinops sagax

Langue:

Réf. Princ.	Whitehead, P.J.P., 1985
Remarques	In South America it is caught down to depths of about 40 m, in summer at 16 to 23 C, in winter at 10 to 18 C. Forms large schools in the Peru current. Likewise in North America, it forms large schools, up to 10 million individuals; it is migratory with a definite northward movement between California and British Columbia waters in summer and return in autumn, winter. Zooplankton and phytoplankton feeder. Food items of larvae and early juveniles consist of copepods and larvaceans (Ref. 32837). Young fish feeds on zooplankton such as copepods and adults on phytoplankton (Ref. 39882). Employs both filter- and particulate-feeding modes on phytoplankton and zooplankton (Ref. 42392).

Réf. Princ.

Whitehead, P.J.P., 1985

Remarques

In South America it is caught down to depths of about 40 m, in summer at 16 to 23 C, in winter at 10 to 18 C. Forms large schools in the Peru current. Likewise in North America, it forms large schools, up to 10 million individuals; it is migratory with a definite northward movement between California and British Columbia waters in summer and return in autumn, winter. Zooplankton and phytoplankton feeder. Food items of larvae and early juveniles consist of copepods and larvaceans (Ref. 32837). Young fish feeds on zooplankton such as copepods and adults on phytoplankton (Ref. 39882). Employs both filter- and particulate-feeding modes on phytoplankton and zooplankton (Ref. 42392).

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	Estuaires/lagons/zones saumâtres mangroves marais	rivers/streams lakes/ponds Grottes exclusivement

Highighted items on the list are where Sardinops sagax may be found.

Habitat

Substrat
Substrate Ref.
Habitats spéciaux
Special habitats Ref.

Associations

Réf.
Associations
Associé avec
Remarques sur les associations
Parasitisme

Prise alimentaire

Type de prise alimentaire	plants/detritus+animals (troph. 2.2-2.79)
Feeding type Ref.	Whitehead, P.J.P., 1985
Habitude alimentaire	selective plankton feeding
Feeding habit Ref.	Whitehead, P.J.P., 1985

Trophic Level(s)

Estimation method	Échantillon original		Population non pêchée		Remarque
Estimation method	Troph	s.e.	Troph	s.e.	Remarque
À partir du régime alimentaire	2.84	0.13	2.46	0.11	Troph of juv./adults from 3 studies.
À partir des éléments alimentaires	2.61	0.29			Trophic level estimated from a number of food items using a randomized resampling routine.
Réf.	Serra, R and I. Tsukayama, 1988

Vers Recherche

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