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      Natural history and population data of fishes in caves of the Serra do Ramalho karst area, Middle São Francisco basin, northeastern Brazil Translated title: História natural e dados populacionais de peixes em cavernas da área cárstica da Serra do Ramalho, sul da Bahia

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          Abstract

          During the exploration and mapping of new caves in Serra do Ramalho karst area, southern Bahia state, cavers from the Grupo Bambuí de Pesquisas Espeleológicas - GBPE (Belo Horizonte) noticed the presence of troglomorphic catfishes (species with reduced eyes and/or melanic pigmentation), which we intensively investigated with regards to their ecology and behavior since 2005. Non-troglomorphic fishes regularly found in the studied caves were included in this investigation. We present here data on the natural history of two troglobitic (exclusively subterranean troglomorphic species) fishes - Rhamdia enfurnada Bichuette & Trajano, 2005 (Heptapteridae; Gruna do Enfurnado) and Trichomycterus undescribed species (Trichomycteridae; Lapa dos Peixes and Gruna da Água Clara), and non-troglomorphic Hoplias cf. malabaricus, probably a troglophile (able to form populations both in epigean and subterranean habitats) in the Gruna do Enfurnado, and Pimelodella sp., a species with a sink population in the Lapa dos Peixes.

          Translated abstract

          Durante a exploração e mapeamento de cavernas da área cárstica da Serra do Ramalho, sul da Bahia, espeleólogos do Grupo Bambuí de Pesquisas Espeleológicas - GBPE (Belo Horizonte) notaram a presença de peixes troglomórficos (com olhos e/ou pigmentação melânica reduzidos), que começamos a investigar intensivamente a partir de 2005. Paralelamente, levantamentos da fauna de invertebrados cavernícolas confirmaram a importância espeleofaunística dessa região. Apresentamos aqui dados sobre duas espécies de peixes troglóbios (troglomórficos exclusivamente subterrâneos) - Rhamdia enfurnada Bichuette & Trajano, 2005 (Heptapteridae; Gruna do Enfurnado) e Trichomycterus sp. não descrita (Trichomycteridae; Lapa dos Peixes e Gruna da Água Clara). São fornecidas informações sobre peixes não troglomórficos encontrados nessas cavernas, tais como Hoplias cf. malabaricus, provavelmente troglófila (capaz de formar populações tanto em habitats epígeos como subterrâneos) na Gruna do Enfurnado, e Pimelodella sp., com grupo de migrantes ("sink population") de média a longa permanência na Lapa dos Peixes.

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          Ecology of Subterranean Fishes: An Overview

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            Population ecology of Trichomycterus itacarambiensis, a cave catfish from eastern Brazil (Siluriformes, Trichomycteridae)

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              Populational ecology of Pimelodella kronei, troglobitic catfish from southeastern Brazil (Siluriformes, Pimelodidae)

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Journal
                bn
                Biota Neotropica
                Biota Neotrop.
                Instituto Virtual da Biodiversidade | BIOTA - FAPESP (Campinas )
                1676-0611
                March 2009
                : 9
                : 1
                : 0
                Affiliations
                [1 ] Universidade de São Paulo Brazil
                [2 ] Universidade Federal de São Carlos Brazil
                Article
                S1676-06032009000100015
                10.1590/S1676-06032009000100015
                bc0db03d-b426-474d-9bf5-c969eeb490c2

                http://creativecommons.org/licenses/by/4.0/

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                Product

                SciELO Brazil

                Self URI (journal page): http://www.scielo.br/scielo.php?script=sci_serial&pid=1676-0603&lng=en
                Categories
                BIODIVERSITY CONSERVATION

                Animal science & Zoology
                caves,natural history,fish,troglobites,Bahia state,cavernas,história natural,peixes,troglóbios,estado da Bahia

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