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Population Genetic Structure and Connectivity of the Abundant Sea Urchin, Diadema setosum around Unguja Island (Zanzibar)
Södertörn University, School of Life Sciences, Biology. Södertörn University, School of Life Sciences, Environmental science.
Södertörn University, School of Life Sciences, Biology. Södertörn University, School of Life Sciences, Environmental science.
Södertörn University, School of Life Sciences, Biology. Södertörn University, School of Life Sciences, Environmental science.ORCID iD: 0000-0003-3389-4162
2010 (English)In: Western Indian Ocean journal of marine science, ISSN 0856-860X, Vol. 9, no 2, 165-174 p.Article in journal (Refereed) Published
Abstract [en]

Abstract—Uncontrolled growth of sea urchin populations may have a negative effect on coral reefs, making them barren. To avoid this, different methods of sea urchin reduction have been developed but, without knowledge of their genetic structure and connectivity, these methods may be ineffective. The aim of this study was to examine the fine-scale genetic structure and connectivity in the sea urchin, Diadema setosum, population around Unguja, Zanzibar, using AFLP. We found evidence of different genetic clusters, high migration between the sites and high genetic diversity within the sites. These findings indicate that a manual reduction of sea urchins with similar genetic connectivity, implemented on the same geographic scale as our study, would be ineffective since sites are probably repopulated from many sources.

Place, publisher, year, edition, pages
2010. Vol. 9, no 2, 165-174 p.
Keyword [en]
Sea Urchin, Population Genetics, Diadema, Tanzania, Western Indian Ocean, connectivity, AFLP
National Category
Genetics
Research subject
Environmental Studies
Identifiers
URN: urn:nbn:se:sh:diva-18762OAI: oai:DiVA.org:sh-18762DiVA: diva2:615814
Projects
WIOMAGNET
Funder
Sida - Swedish International Development Cooperation Agency, SWE-2005-321
Available from: 2013-04-12 Created: 2013-04-12 Last updated: 2015-06-14Bibliographically approved

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http://www.ajol.info/index.php/wiojms/article/view/73977

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Larsson, JosefineHenriksson, OskarGrahn, Mats
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