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Ecology of Alosa alosa
 
Main Ref. Whitehead, P.J.P., 1985
Remarks In brackish water near estuaries adults prey mainly on planktonic crustaceans (Refs. 40, 89654) and may add small schooling fishes to their diet while at sea (Refs. 188, 10536). Juveniles in freshwater feed on insect larvae, planktonic crustaceans and rotifers (Refs. 10536, 35387) adding herring larvae and planktonic crustaceans to their diet when they move to brackish water near estuaries (Refs. 40, 89654). Feeding appears to cease during migration into rivers (Refs. 10536, 30578).

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 alosa 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
Troph s.e. Troph s.e.
From diet composition 2.95 0.18 Troph of juv./adults from 2 studies.
From individual food items 3.62 0.53 Trophic level estimated from a number of food items using a randomized resampling routine.
Ref.
(e.g. 346)
(e.g. cnidaria)
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