Ecology Summary - Percilia irwini

Lengua:

Referencia principal	Ruiz, V.H. and T.M. Berra, 1994
Observaciones	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).

Referencia principal

Ruiz, V.H. and T.M. Berra, 1994

Observaciones

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).

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	Estuarios/lagunas/mares salobres mangroves marshes/swamps	rivers/streams lakes/ponds Cuevas exclusivamente

Highighted items on the list are where Percilia irwini may be found.

Habitat

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

Associations

Referencia
Associations
Associated with
Association remarks
Parasitism

Alimentación

Tipo De Alimentación	mainly animals (troph. 2.8 and up)
Feeding type Ref.	Habit, E. and M.C. Belk, 2007
Hábito De Alimentación	hunting macrofauna (predator)
Feeding habit Ref.	Habit, E. and M.C. Belk, 2007

Trophic Level(s)

Estimation method	Muestra original		Población no pescada		Observación
Estimation method	Troph	s.e.	Troph	s.e.	Observación
De la composición de la dieta
De tipos individuales de alimento	3.30	0.43			Trophic level estimated from a number of food items using a randomized resampling routine.
Referencia

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