碩士 / 國立東華大學 / 海洋生物研究所 / 106 / The aim of study is to investigate the differences of reproductive biology and population dynamics of Macrobrachium japonicum from different rivers in Taiwan. Sampling sites include Sichongxi River and Gaoping River in western Taiwan, and Xiuguluan Rive and Hualian River in eastern Taiwan. After sample were taken into laboratory, carapace length, body weight and egg size were measured, sex ratio, GSI, hsi, ovigerous female ratio were calculated, egg number was enumerated. The results showed that population from Gaoping River had significant larger carapace length whereas those from Hualian River was significantly smaller. There was no difference between Sichongxi River and Xiuguluan Rive in carapace length. There was a positive linear relation between carapace length and egg number. In Sichongxi River and Gaoping River, populations had significantly more egg number. There was no significant different between Sichongxi River, Gaoping River and Xiuguluan River in egg volume, but significantly smaller in Hualian River. More females were found in Sichongxi River and Hualian River, whereas in Gaoping River and Xiuguluan River more male were found. Similar trend was found for the gonadosomatic index(GSI) and ovigerous female ratio. GSI remain high during spring and summer in Sichongxi River, Gaoping River, Xiuguluan River, Hualian River. Although M. japonicum live in river, it showed different reproductive strategies in different environment.
| Identifer | oai:union.ndltd.org:TW/106NDHU5277008 |
| Date | January 2018 |
| Creators | Ka-Chun Kan, 簡家駿 |
| Contributors | Chiao-Chuan Han, 韓僑權 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 38 |
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