FishBase
More info | Plus d'info. | Mais info
Ecology of Ptychocheilus oregonensis
 
Main Ref. Scott, W.B. and E.J. Crossman, 1973
Remarks Occurs in lakes, pools and occasionally in runs of small to large rivers. Prefers still waters and swift streams. Young inhabit inshore waters during the summer, moving to deeper waters in the fall. Larger individuals remain offshore. Feeds on fishes, terrestrial insects, plankton, aquatic insect larvae, and crustaceans while inshore; feeds mostly on fishes while offshore (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 Ptychocheilus oregonensis 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. Ricker, W.E., 1941
Feeding habit hunting macrofauna (predator)
Feeding habit Ref. Scott, W.B. and E.J. Crossman, 1973
Trophic Level(s)
Estimation method Original sample Unfished population Remark
Troph s.e. Troph s.e.
From diet composition 4.21 0.40 4.03 0.59 Troph of adults from 3 studies.
From individual food items 4.24 0.74 Trophic level estimated from a number of food items using a randomized resampling routine.
Ref. Jeppson, P.W. and W.S. Platts, 1959
(e.g. 346)
(e.g. cnidaria)
Comments & Corrections
 
 
Back to Search
cfm script by eagbayani,  ,  php script by rolavides, 2/5/2008 ,  last modified by mbactong, 10/24/19