Brazilian Archives of Biology and Technology | |
Reproductive Strategies of Plagioscion squamosissimus Heckel, 1840 (Osteichthyes Sciaenidae) in the Itaipu Reservoir, Brazil | |
Regina Cintia Carnelós1  Evanilde Benedito-cecilio1  | |
[1] ,Universidade Estadual de Maringá Department of Biology/NUPELIA Maringá PR ,Brazil | |
关键词: Reproduction; Itaipu reservoir; Plagioscion squamosissimus; impact; | |
DOI : 10.1590/S1516-89132002000300010 | |
来源: SciELO | |
【 摘 要 】
Plagioscion squamosissimus is a dominant species in the Itaipu reservoir and has a significant role in the regional economy. The aim of the present research was the investigation of the curvina's reproductive strategies during the first years of the Itaipu reservoir (November 1983 to October 1989). Collections were undertaken from eleven sampling sites in the reservoir area, left bank tributaries, Paraná River and its tributaries. Species begin the reproduction in the area of influence of the Itaipu reservoir only in 1986. Size of early maturation, local and period of spawning showed gradual variations, with a broadening trend of this activity in the area, and thus guaranteeing success of the species. Mean size of early sexual maturation for the Plagioscion squamosissimus reached 16.2 cm for males and 17.8 cm for females.
【 授权许可】
CC BY-NC
All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License
【 预 览 】
Files | Size | Format | View |
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RO202005130164991ZK.pdf | 299KB | download |