Ecology Summary - Squalus acanthias
Ökologie der Squalus acanthias
 
Main Ref. Wetherbee, B.M., S.H. Gruber and E. Cortes, 1990
Bemerkungen Common in cold waters; usually at temperatures of 6-15°C (Ref. 5951); inhabits rocky regions (Ref. 9137). A carnivore (Ref. 9137) and opportunist feeder (Ref. 43115). Feeds on fishes (mackerel, sand lance, silver hake, white hake, haddock, pollock, Atlantic salmon, menhaden, winter flounder and longhorn sculpin), cephalopods (e.g. squids), amphipods, crabs, shrimps, molluscs, ctenophores, echinoderms (e.g. sea cucumber), polychaete worms, sea anemones, jellyfish, and red, green and brown algae; herring, capelin and cod found to be important foods (Ref. 5951, 28070). Smaller individuals (<60cm TL) show a preference for crustaceans, bony fish are the major prey item in larger specimens (Ref. 28070). Newly born are prone to predaceous bony fishes and sharks, while juveniles and adults may fall prey to swordfish and grey seals (Ref. 5951). Parasites of the species include: 1 protozoan, 2 monogeneans, 5 trematodes, 4 cestodes, 5 nematodes, 1 hirudineid and 1 copepod (Ref. 5951).

Aquatic zones / Water bodies

Marine - Neritic Marine - Oceanic Brackishwater Freshwater
Marine zones / Brackish and freshwater bodies
  • Supra-Litoral-Zone
  • Gezeitenzone
  • Kontinentalschelf
  • epipelagisch
  • mesopelagisch
  • epipelagisch
  • Abyssopelagisch
  • Hadopelagisch
  • Ästuare/Lagunen/Brackwassermeere
  • Mangroven
  • Sümpfe/Sümpfe
  • Flüsse/Ströme
  • Seen/Teiche
  • Höhlen
  • ausschließlich in Höhlen
Highighted items on the list are where Squalus acanthias may be found.

Habitat

Substrat
Substrat Ref.
Besondere Lebensräume
Besondere Lebensräume Ref.

Verbände

Ref.
Verbände
Assoziiert mit
Bemerkungen der Vereinigung
Parasitismus

Fütterung

Art der Fütterung mainly animals (troph. 2.8 and up)
Fütterungsart Ref. Ebert, D.A., L.J.V. Compagno and P.D. Cowley, 1992
Fütterungsgewohnheit hunting macrofauna (predator)
Fütterungsgewohnheiten Ref.
Trophic Level(s)
Estimation method Ursprüngliche Probe Ungefischte Bevölkerung Bemerkung
Troph s.e. Troph s.e.
Von der Zusammensetzung der Ernährung 4.37 0.41 4.13 0.58 Troph of adults from 2 studies.
Von einzelnen Lebensmitteln 4.50 0.99 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
(z.B. 9948)
(z.B. oophagy)
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