Comparative study of the reproductive biology of two congeneric and introduced goby species: Implications for management strategies
Hydrobiologia, ISSN: 1573-5117, Vol: 709, Issue: 1, Page: 89-99
2013
- 15Citations
- 29Captures
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Article Description
A full understanding of life history characteristics of invasive species is a fundamental prerequisite for the development of management strategies. Two introduced goby species (Rhinogobius cliffordpopei and Rhinogobius giurinus) have established highly abundant populations in Lake Erhai (China). In the present study, we examined the reproductive biology of these two species with the aim of improving the efficiency of management strategy. The results indicated that R. cliffordpopei spawned from February to June, whereas R. giurinus spawned from April to August. Rhinogobius cliffordpopei showed higher gonado-somatic indices and had larger eggs than R. giurinus. The adult sex ratio of R. cliffordpopei was female skewed, but that of R. giurinus was equal. Rhinogobius cliffordpopei showed a male-skewed sexual size dimorphism, whereas the body size of R. giurinus varied only slightly between males and females. The different reproductive traits appear as a crucial biologic aspect for developing control programs. Specifically, control measures should be implemented and/or intensified from September to February for R. cliffordpopei and from January to April for R. giurinus. The body size of the smaller R. cliffordpopei females is the determinant for minimal mesh size of the nets used in physical removals of R. cliffordpopei. © 2013 Springer Science+Business Media Dordrecht.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84876083761&origin=inward; http://dx.doi.org/10.1007/s10750-012-1439-8; http://link.springer.com/10.1007/s10750-012-1439-8; http://link.springer.com/content/pdf/10.1007/s10750-012-1439-8; http://link.springer.com/content/pdf/10.1007/s10750-012-1439-8.pdf; http://link.springer.com/article/10.1007/s10750-012-1439-8/fulltext.html; https://dx.doi.org/10.1007/s10750-012-1439-8; https://link.springer.com/article/10.1007/s10750-012-1439-8
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