碩士 / 國立中山大學 / 生物科學系研究所 / 101 / Ligia exotica is a widespread sea slater species distributing over tropical and subtropical zone. It is often found around rocky coasts and estuaries of Taiwan, used as fishing bait as well as for medical treatment. However, it is also a transmitter of some diseases of fish or shrimp. An understanding of its ecology and behavior can benefit the aquaculture industry. Sea slaters do not inhabit in water but have a specific mode of reproduction, for example, there is no planktonic larval stage. Their ranges of activity were quite restricted, and hence populations of sea slaters may differentiate genetically. The study aims to investigate whether there exists any difference between populations inhibiting harbors, where with possible dispersal of these organisms by ships, and non-harbors, without such dispersal. The results revealed high degree of differentiation within both harbor and non-harbor populations, but the genetic distances of populations between harbors were obviously lower than those between non-harbors. In additions, same haplotypes were also discovered among different harbors. The results suggest that L. exotica dispersed to other places by shipping transportation.
Identifer | oai:union.ndltd.org:TW/101NSYS5112023 |
Date | January 2013 |
Creators | Wei-chen Chang, 張維宸 |
Contributors | Hsueh-Wen Chang, 張學文 |
Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
Language | en_US |
Detected Language | English |
Type | 學位論文 ; thesis |
Format | 66 |
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