Length-weight relationships and condition factor of the eaglebeak pacu Ossubtus xinguense Jégu, 1992 (Characiformes, Serrasalmidae), an endangered species from Rio Xingu rapids, northern Brazil

Autor:	MC. Andrade, AJS. Jesus, T. Giarrizzo
Jazyk:	angličtina
Předmět:	conservation hydroelectric impacts growth stanzas rheophilic fish endemic species Science Biology (General) QH301-705.5 Zoology QL1-991 Botany QK1-989
Zdroj:	Brazilian Journal of Biology, Vol 75, Iss 3 suppl 1, Pp 102-105
Druh dokumentu:	article
ISSN:	1678-4375 1519-6984
DOI:	10.1590/1519-6984.01214BM
Popis:	Abstract This study reports on the length-weight relationships and condition factor for the endangered rheophilic fish Ossubtus xinguense Jégu from Rio Xingu rapids. This species is threatened by construction of the third largest hydroelectric in the world, the Belo Monte dam close to the city of Altamira, northern Brazil. Specimens were collected in the dry season between July 2012 and September 2012. Male specimens have body length larger than females, atypical in serrasalmid fishes, and different length-weight relationships were found between adult and juvenile specimens. This study presents the first biological characteristics for O. xinguense.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/f5390b769ced4c96af8fe2dad262c1ac Zobrazit plný text záznamu View record in DOAJ