2015
DOI: 10.1590/1519-6984.19113
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Conservation status of an endangered annual fish Hypsolebias antenori (Rivulidae) from Northeastern Brazil

Abstract: This work presents information regarding the biology and state of conservation of an endangered annual fish Hypsolebias antenori. Fish were captured from small seasonal pools located in Northeastern Brazil. The total body length, body mass, sex ratio, first sexual maturity were investigated. The sampled population showed sexual dimorphism. There was a predominance of females (60%) over males (40%) with a sex ratio of 1: 1.4 and males were bigger and heavier than the females. Amplitude of total length of males … Show more

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Cited by 8 publications
(7 citation statements)
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“…Known from the Jaguaribe (CE) to the Apodi-Mossoró (RN) river basins, C. microphthalmus has not been collected since 1999 in CE (Costa 2001). Although Nascimento et al (2015), Costa et al (2018c) and Oliveira et al (2018) collected H. antenori in CE and RN, they did not collect C. microphthalmus. In RN this species has not been found since 1972 (Costa 2001) and the new occurrences might be useful to address conservation strategies of this large killifish species.…”
Section: Discussionmentioning
confidence: 99%
“…Known from the Jaguaribe (CE) to the Apodi-Mossoró (RN) river basins, C. microphthalmus has not been collected since 1999 in CE (Costa 2001). Although Nascimento et al (2015), Costa et al (2018c) and Oliveira et al (2018) collected H. antenori in CE and RN, they did not collect C. microphthalmus. In RN this species has not been found since 1972 (Costa 2001) and the new occurrences might be useful to address conservation strategies of this large killifish species.…”
Section: Discussionmentioning
confidence: 99%
“…Os autores comentam que a redução das espécies de peixes pode ser resultado somente da introdução da tilápia e/ou outros fatores, como impactos da própria criação do reservatório (que só começou a ser monitorado 12 anos Instituto Chico Mendes de Conservação da Biodiversidade -ICMBio Processo de Avaliação do Risco de Extinção da Fauna Brasileira Última avaliação após a sua construção), alterações no comportamento dos peixes, eutrofização do reservatório e introdução de outras espécies exóticas. Nascimento et al (2011) também mencionam a alteração da estrutura da comunidade de peixes após a introdução da tilápia na bacia do Piranhas-Assu (Rio Grande do Norte), com danos às espécies nativas, entre elas, P. brevis. Menezes et al (2012) avaliando 9 lagos do Rio Grande do Norte e verificaram a redução da diversidade de peixes nativos em 5 deles onde ocorreu a introdução do tucunaré (Cichla cf.…”
Section: Ameaçasunclassified

Ficha de Prochilodus brevis

André Teixeira da Silva,
Angela Maria Zanata,
Augusto Luís Bentinho Silva
et al. 2024
Datasets - Sistema SALVE - ICMBio
“…Stress promotes reproduction in the annual fish Hypsolebias antenori. 17 The canonical effect of stress on reproduction is reverted in annual fish, Austrolebias reicherti. As mating opportunities run out, cortisol levels and reproductive effort increase.…”
Section: Seasonality Of Reproduction In Fishesmentioning
confidence: 99%