Ecology Summary - Alosa sapidissima

Language:

Main Ref.	Whitehead, P.J.P., 1985
Remarks	Anadromous (Ref. 5951). Strongly migratory (tagged individuals caught as far as 3000 km from point of release); in rivers, moves up as far as Montreal, but usually not ascending as far upstream as A. pseudoharengus. Feeds on copepods, other crustacean zooplankters, aquatic insect larvae, especially chironomid larvae (important for young shad in fresh water); ostracods, amphipods, isopods, insects and small fishes in the Bay of Fundy (Ref. 5951). No feeding during migration up rivers. Parasites found are nematodes, distomes (trematodes) and acanthocephalans (Ref. 5951).

Main Ref.

Whitehead, P.J.P., 1985

Remarks

Anadromous (Ref. 5951). Strongly migratory (tagged individuals caught as far as 3000 km from point of release); in rivers, moves up as far as Montreal, but usually not ascending as far upstream as A. pseudoharengus. Feeds on copepods, other crustacean zooplankters, aquatic insect larvae, especially chironomid larvae (important for young shad in fresh water); ostracods, amphipods, isopods, insects and small fishes in the Bay of Fundy (Ref. 5951). No feeding during migration up rivers. Parasites found are nematodes, distomes (trematodes) and acanthocephalans (Ref. 5951).

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 Alosa sapidissima 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.	Whitehead, P.J.P., 1985
Feeding habit	hunting macrofauna (predator)
Feeding habit Ref.	Whitehead, P.J.P., 1985

Trophic Level(s)

Estimation method	Original sample		Unfished population		Remark
Estimation method	Troph	s.e.	Troph	s.e.	Remark
From diet composition	3.48	0.32	3.46	0.46	Troph of juv./adults from 1 study.
From individual food items	3.61	0.56			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

Back to Search

cfm script by eagbayani, , php script by rolavides, 2/5/2008 , last modified by mbactong, 10/24/19