Ecology of Prosopium williamsoni
 
Main Ref. Scott, W.B. and E.J. Crossman, 1973
Remarks Occurs in lakes and fast, clear or silty streams. Feeds mainly on benthic organisms such as aquatic insect larvae, mollusks, fishes, and fish eggs (including their own) but may feed on plankton and surface insects when the need arises (Ref. 1998).

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 Prosopium williamsoni 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. Scott, W.B. and E.J. Crossman, 1973
Feeding habit hunting macrofauna (predator)
Feeding habit Ref.

Trophic Level(s)

Estimation method Original sample Unfished population Remark
Troph s.e. Troph s.e.
From diet composition 3.66 0.12 3.21 0.37 Troph of adults from 2 studies.
From individual food items 3.53 0.47 Trophic level estimated from a number of food items using a randomized resampling routine.
Ref. Thompson, G.E. and R.W. Davies, 1976
(e.g. 346)
(e.g. cnidaria)
Entered by Sa-a, Pascualita on 04.08.97
Modified by Pablico, Grace Tolentino on 07.31.07
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