Relação preliminar das espécies de peixes (Pisces, Elasmobranchii, Actinopterygii) ameaçadas no Brasil

Rosa, Ricardo S.; Menezes, Naércio A.

doi:10.1590/s0101-81751996000300015

Cited by 31 publications

(24 citation statements)

References 5 publications

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“…The specimens reported by Ingenito et al (2004) were collected mainly in creeks surrounded by dense rainforest vegetation in the municípios of Balsa Nova, Lapa, and Quatro Barras east of Curitiba, isolated from the type locality but still belonging to the upper rio Iguaçu basin. We agree with these authors that G. caerulea might not be as rare as indicated by Rosa & Menezes (1996) and is more widespread than our previous evidence indicated, but apparently restricted to patches where vegetation is still abundant. However it was considered threatened in Brazil (Duboc & Menezes, 2008, as Glandulocauda melanopleura).…”

Section: Comments On Conservation and Ecology Of The Glandulocaudinaesupporting

confidence: 91%

Systematics of the neotropical fish subfamily Glandulocaudinae (Teleostei: Characiformes: Characidae)

2009

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The systematics of the Glandulocaudinae is reviewed in detail and justification for the recognition of the group as a subfamily is discussed. The subfamily Glandulocaudinae consists of three genera: Lophiobrycon with one species plesiomorphic in some anatomical features but some others exclusively derived relative to the species in the other genera; Glandulocauda with two species intermediate in phylogenetic derivation; and Mimagoniates with seven species (one new), all more phylogenetically derived concerning their pheromone producing caudal-fin organs and with other anatomical characters presumably more derived than in the species of the other genera. Glandulocauda melanogenys Eigenmann, 1911, is considered a junior synonym of Hyphessobrycon melanopleurus Ellis, 1911. A replacement name, Glandulocauda caerulea Menezes & Weitzman, is proposed for G. melanopleura Eigenmann, 1911. Gland cells found in the caudal-fin organs of all species are histologically indistinguishable from club cells and probably secrete a pheromone during courtship. The club cells are associated with somewhat modified to highly derived caudal scales forming a pheromone pumping organ in the more derived genera and species. This subfamily is distributed in freshwaters of eastern and southern Brazil, Paraguay, and northeastern Uruguay.
A sistemática de Glandulocaudinae é revista e a justificativa para o reconhecimento do grupo como subfamília discutida. A subfamília Glandulocaudinae consiste de três gêneros: Lophiobrycon, com uma espécie plesiomórfica com relação a alguns caracteres anatômicos, mas outros derivados e exclusivos em relação às espécies dos outros dois gêneros; Glandulocauda, com duas espécies intermediárias quanto à condição dos caracteres derivados; e Mimagoniates, com sete espécies (uma nova), todas filogeneticamente mais avançadas quanto às características dos órgãos da nadadeira caudal produtores de feromônio e outras características anatômicas presumivelmente mais derivadas do que nas espécies dos outros gêneros. Glandulocauda melanogenys Eigenmann, 1911, é considerado sinônimo junior de Hyphessobrycon melanopleurus Ellis, 1911. O nome Glandulocauda caerulea Menezes & Weitzman, é proposto em substiutição para G. melanopleura Eigenmann, 1911. Células glandulares encontradas nos órgãos da caudal são histologicamente indistinguíveis de "células club" e provavelmente secretam algum tipo de feromônio durante a corte. As "células club" são associadas a escamas da caudal pouco ou inteiramente modificadas e fazendo parte dos órgãos bombeadores de feromônio nas espécies e gêneros mais derivados. Esta subfamília distribui-se em ambientes de água doce do leste e sul do Brasil, no Paraguai e nordeste do Uruguai

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Section: Comments On Conservation and Ecology Of The Glandulocaudinaesupporting

confidence: 91%

Systematics of the neotropical fish subfamily Glandulocaudinae (Teleostei: Characiformes: Characidae)

2009

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“…On South America, the region that presents the richest freshwater fish fauna of the world, it is settled that 0.4% of the fish species are already endangered. By the end of the 20 th century, at least 78 fish species have been considered endangered in Brazil, specially due to deforestation and pollution of rivers and oceans (Rosa & Menezes, 1996). However, these data seem to be underestimated.…”

Section: Endangered Fish Species In Brazilmentioning

confidence: 99%

<b>Genetic Conservation of Brazilian Fishes - Present State and Perspectives</b>

Wasko¹,

Martins²,

Claudio³

et al. 2006

Annu Rev Biomed Sci

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Wasko AP, Martins C, Oliveira C, Foresti F. Genetic Conservation of Brazilian Fishes -Present State and Perspectives. ARBS Ann Ver Biomed Sci 2004;6:79-90. Natural environments have been worldwide affected by the growing impact of anthropogenic actions that promote the reduction or the extinction of several vertebrate species. Aquatic ecosystems represent one of the most affected environments and many fish species and/or populations have been increasingly fragmented distributed due to habitat degradation, predatory fishing, introduction of exotic species, river sedimentation, deforestation, pollution, reduction of food resource, and construction of hydroelectric dams. Actually, more than 150 Brazilian fish species, including freshwater, estuary and coastal species, can be considered threatened. Information on the diversity, conservation biology and population analysis on threatened species or populations, with several DNA markers, can be extremely useful for the success of fish species-recovery and maintenance programs. Although DNA analysis in Neotropical fish species are just beginning, they tend to increase with the widespread attention to the use of molecular approaches to minimize problems related to the risk of extinction. The accumulation of information on biology and pattern of genetic variation of fish species, associated with ecological and demographic data, and also education and respect to the nature, constitutes a crucial task to develop efficient conservation strategies in order to preserve the genetic diversity in aquatic environments.

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“…Phalloptychus eigenmanni is included in the list of endangered fish species in Brazil (Rosa & Menezes, 1996;MMA, 2004). Various collecting efforts have revealed unfruitful, even in the type locality.…”

Section: Color In Alcoholmentioning

confidence: 99%

“…Various collecting efforts have revealed unfruitful, even in the type locality. Phalloptychus eigenmanni is seriously endangered, probably extinct (Rosa & Menezes, 1996). Distribution.…”

Section: Color In Alcoholmentioning

confidence: 99%

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Systematics and biogeography of the genus Phalloptychus Eigenmann, 1907 (Cyprinodontiformes: Poeciliidae: Poeciliinae)

Lucinda

2005

Neotrop. ichthyol.

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The genus Phalloptychus is revised. Phalloptychus iheringii is removed from the synonym of P. januarius. Three species are recognized: P. eigenmanni, P. januarius, and P. iheringii. Phalloptychus eigenmanni can be distinguished from its congeners by the number of pelvic-fin rays in females, the number of predorsal scales, and the predorsal distance in females. Phalloptychus iheringii and P. januarius can be distinguished by the number of epipleural ribs, number of gonopodial rays, and a significantly different number of vertical bars along body side in females. Lectotypes are designated for Girardinus iheringii and G. januarius. Redescriptions and known distribution ranges are provided for each species as well as an identification key. Derived features supportting the monophyly of the genus and infrageneric clades are presented and discussed. The biogeographic implications of the geographic distribution of Phalloptychus species are discussed.O gênero Phalloptychus é revisado. Phalloptychus iheringii é retirado da sinonímia de P. januarius, e três espécies são reconhecidas: P. eigenmanni, P. januarius e P. iheringii. Phalloptychus eigenmanni pode ser distinguido dos seus congêneres pelo número de raios da nadadeira pélvica das fêmeas, pelo número de escamas pré-dorsais, e pela distância pré-dorsal nas fêmeas. Phalloptychus iheringii e P. januarius podem ser distinguidos pelo número de costelas epipleurais, pelo número de raios gonopodiais e por um número significantemente diferente de barras verticais ao longo dos flancos das fêmeas. Lectótipos são designados para Girardinus iheringii e G. januarius. Redescrições e amplitudes de distribuição conhecida são apresentadas para cada espécie bem como uma chave de identificação. São apresentados e discutidos caracteres derivados que corroboram a monofilia do gênero e dos clados infragenéricos. As implicações biogeográficas da distribuição geográfica das espécies de Phalloptychus são discutidas.

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Relação preliminar das espécies de peixes (Pisces, Elasmobranchii, Actinopterygii) ameaçadas no Brasil

Cited by 31 publications

References 5 publications

Systematics of the neotropical fish subfamily Glandulocaudinae (Teleostei: Characiformes: Characidae)

Systematics of the neotropical fish subfamily Glandulocaudinae (Teleostei: Characiformes: Characidae)

<b>Genetic Conservation of Brazilian Fishes - Present State and Perspectives</b>

Systematics and biogeography of the genus Phalloptychus Eigenmann, 1907 (Cyprinodontiformes: Poeciliidae: Poeciliinae)

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