Reproductive characteristics and the weight-length relationship in Anableps anableps (Linnaeus, 1758) (Cyprinodontiformes: Anablepidae) from the Amazon Estuary

Autor: Valéria de Albuquerque Oliveira, Nelson Ferreira Fontoura, Luciano Fogaça de Assis Montag
Jazyk: angličtina
Předmět:
Zdroj: Neotropical Ichthyology, Vol 9, Iss 4, Pp 757-766
Druh dokumentu: article
ISSN: 1982-0224
1679-6225
DOI: 10.1590/S1679-62252011005000042
Popis: The present study analyzed the length-weight relationship and some aspects of the reproductive biology of Anableps anableps from the mouth of the Maracanã River, in the Brazilian state of Pará. The specimens were collected using two 30 m-long gillnets with 15 and 20 mm mesh size, as well as a 1 m-diameter hand net with a 10 mm mesh. A total of 865 specimens were collected, from which an adult sex ratio of 2.12 females per male was recorded (χ² = 13.07; p
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