Ecology of Gasterosteus wheatlandi
 
Main Ref. Delbeek, J.C. and D.D. Williams, 1988
Distribution
Marine - Neritic
  • supra-littoral zone
  • littoral zone
  • sublittoral zone
Marine - Oceanic
  • epipelagic
  • mesopelagic
  • epipelagic
  • abyssopelagic
  • hadopelagic
Brackishwater
  • estuaries/lagoons/brackish seas
  • mangroves
  • marshes/swamps
Freshwater
  • rivers/streams
  • lakes/ponds
  • caves
  • exclusively in caves
Highighted items on the list are where Gasterosteus wheatlandi may be found.
Remarks Occurs near shore in beds of vegetation, often around floating vegetation a short distance from shore. Rarely enters fresh water (Ref. 7251). Semipelagic, swimming near floating seaweed; prefers salinity of 7-14 ppt. Feeds on small invertebrates, small fishes and eggs.

Substrate

Substrate
Substrate Ref.
Special habitats Beds: algae/seaweed; vegetation
Special habitats Ref.

Associations

Ref. Scott, W.B. and M.G. Scott, 1988
Associations
Associated with
Association remarks Parasites of the species include 4 monogeneans (genus Gyrodactylus), 1 trematode (Podocotyle atomon), 3 cestodes (Proteocephalus sp., Schistocephalus solidus and Ligula intestinalis) and 1 copepod (Thersitina gasterostei) (Ref. 5951).
Parasitism

Feeding

Feeding type mainly animals (troph. 2.8 and up)
Feeding type ref Delbeek, J.C. and D.D. Williams, 1988
Feeding habit hunting macrofauna (predator)
Feeding habit ref Walsh, G. and G.J. Fitzgerald, 1984
Trophic level(s)
Original sample Unfished population Remark
Estimation method Troph s.e. Troph s.e.
From diet composition 3.28 0.09 Troph of juv./adults from 6 studies.
Ref. Walsh, G. and G.J. Fitzgerald, 1984
From individual food items 3.31 0.38 Trophic level estimated from a number of food items using a randomized resampling routine.
(e.g. 346)
(e.g. cnidaria)
Entered by Sa-a, Pascualita on 02.19.03
Modified by Pablico, Grace Tolentino on 08.01.07
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