Ecology Summary - Hisonotus leucophrys

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Main Ref.	Carvalho, T.P. and R.R. Reis, 2009
Remarks	This species inhabits median to fast flowing watercourses of clear water, with stones and sand on the bottom, and are found in aquatic, partially submersed, vegetation islands composed by grass. Recent collection efforts in rio Rancho Grande failed to capture additional individuals of this species. After the flooding of the reservoir of the Itá dam (a power plant downstream the mouth of rio Rancho Grande into the rio Uruguay) in the year of 2000, a large portion of the rio Rancho Grande was flooded. The changes in the environment from a rapid running river to a lentic habitat apparently are the cause of the disappearance of this species (Ref. 80996).

Main Ref.

Carvalho, T.P. and R.R. Reis, 2009

Remarks

This species inhabits median to fast flowing watercourses of clear water, with stones and sand on the bottom, and are found in aquatic, partially submersed, vegetation islands composed by grass. Recent collection efforts in rio Rancho Grande failed to capture additional individuals of this species. After the flooding of the reservoir of the Itá dam (a power plant downstream the mouth of rio Rancho Grande into the rio Uruguay) in the year of 2000, a large portion of the rio Rancho Grande was flooded. The changes in the environment from a rapid running river to a lentic habitat apparently are the cause of the disappearance of this species (Ref. 80996).

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 Hisonotus leucophrys may be found.

Habitat

Substrate	: rocky;
Substrate Ref.
Special habitats
Special habitats Ref.

Associations

Ref.
Associations
Associated with
Association remarks
Parasitism

Feeding

Feeding type
Feeding type Ref.
Feeding habit
Feeding habit Ref.

Trophic Level(s)

Estimation method	Original sample		Unfished population		Remark
Estimation method	Troph	s.e.	Troph	s.e.	Remark
From diet composition
From individual food items
Ref.

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