期刊
BULLETIN FRANCAIS DE LA PECHE ET DE LA PISCICULTURE
卷 -, 期 380-81, 页码 1155-1167出版社
CONSEIL SUPERIEUR DE LA PECHE
DOI: 10.1051/kmae:2006018
关键词
red-swamp crayfish; Procambarus clarkii; growth; reproduction; Lake Trasimeno
类别
The aim of this study was to gather more informations about the biological characteristics of Procambarus clarkii and to investigate the reasons of its rapid expansion in Lake Trasimeno. Specimens of both sexes (544 males and 624 females) were collected from October 2000 to November 2001. During the sampling period physical factors such as water temperature and hydrologic level of Lake Trasimeno were recorded. The study was conducted monthly in order to assess this species' reproductive period. 1,168 specimens were analyzed for colour, sex, weight, and length. The sexual maturation of gonads was investigated in females. The results of this study evidenced that the population is in expansion, showing that Lake Trasimeno is an optimal habitat for this species.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据