Ecology of Percilia irwini
Main Ref. Ruiz, V.H. and T.M. Berra, 1994
Marine - Neritic
  • supra-littoral zone
  • littoral zone
  • sublittoral zone
Marine - Oceanic
  • 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 Percilia irwini may be found.
Remarks Exhibits a gradient of abundance from low numbers in rithral/transitional habitats in headwater areas to higher numbers in potamal areas in the middle-lower reaches in rivers. Bentho-pelagic ?sh inhabiting shallow (<1 m) and slow waters of lakes (Laja, Icalma and Galletue┬┤ ) and rivers. They occur over boulders or a mixed substrate of boulders, gravel and sand patches. Feeds mainly on chironomid larvae and other aquatic insects (may?ies, caddis?ies) and small mollusks (Ref. 58887).


Substrate : sand; Hard Bottom: rocky;
Substrate Ref.
Special habitats
Special habitats Ref.


Associated with
Association remarks


Feeding type mainly animals (troph. 2.8 and up)
Feeding type ref Habit, E. and M.C. Belk, 2007
Feeding habit hunting macrofauna (predator)
Feeding habit ref Habit, E. and M.C. Belk, 2007
Trophic level(s)
Original sample Unfished population Remark
Estimation method Troph s.e. Troph s.e.
From diet composition
From individual food items 3.30 0.43 Trophic level estimated from a number of food items using a randomized resampling routine.
(e.g. 346)
(e.g. cnidaria)
Entered by Pablico, Grace Tolentino on 03.10.05
Modified by Pablico, Grace Tolentino on 09.11.07
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