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

被引：0
|
作者：
Andrade, M. C. [1 ,2 ]
Jesus, A. J. S. [1 ,2 ]
Giarrizzo, T. [1 ,2 ,3 ]
机构：
[1] Univ Fed Para UFPA, Grp Ecol Aquat, Lab Biol Pesqueira & Manejo Recursos Aquat, BR-66077830 Belem, PA, Brazil
[2] Univ Fed Para UFPA, Inst Ciencias Biol, Programa Posgrad Ecol Aquat & Pesca, BR-66075110 Belem, PA, Brazil
[3] Univ Fed Para UFPA, Fac Ciencias Biol, Programa Posgrad Biodiversidade & Conservacao, BR-68372010 Altamira, PA, Brazil
来源：
BRAZILIAN JOURNAL OF BIOLOGY | 2015年 / 75卷 / 03期
关键词：
conservation; hydroelectric impacts; growth stanzas; rheophilic fish; endemic species; FISHES; CHARACIDAE; HISTORY; SHIELD; BASIN;
D O I：
10.1590/1519-6984.01214BM
中图分类号：
Q [生物科学];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
This study reports on the length-weight relationships and condition factor for the endangered rheophilic fish Ossubtus xinguense Jegu 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.
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收藏
页码：S102 / S105
页数：4
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