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Journal of Entomology and Zoology Studies
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P-ISSN: 2349-6800, E-ISSN: 2320-7078

Journal of Entomology and Zoology Studies

2014, Vol. 2, Issue 2
Species diversity and distribution of Ostracoda (Crustacea) in mesosaline Lake Bafa (Aegean Region, Turkey)

Selçuk Altınsaçlı

This study was carried out in order to determine Ostracoda fauna of Lake Bafa (Aydın-Muğla, Turkey) and investigate their distribution from 20 sites in February, May, July and September of 1997. The ostracods assemblages comprised a mixture of 14 freshwater and brackish-marine origin species. The most common and abundant species were the brackish-water ostracods Cyprideis torosa and Loxoconcha elliptica. According to Shannon-Weiner diversity index, it was found that Lake Bafa had a mean diversity value of H’= 0.85. The ostracod abundance showed an increase in the warmer period starting from late spring and reached maximum values in May. We analysed the dominance and distribution of ostracod assemblages and their relation to environmental factors (temperature, dissolved oxygen, pH, and salinity) by using classification and ordination techniques. Canonical correspondence analysis (CCA) was used to characterize the relationship between ostracods and the environmental variables. According to the first axis of CCA, we determined salinity to be the most important environmental variable affecting ostracod species distribution. According to Jaccard similarity coefficient (Jaccard Index) analysis results, sampling stations and ostracod species assemblage were clustered into two groups with the non-weighted pair-group method with arithmetic mean based on presence/absence of species. Besides multivariate analysis, Spearman correlation analysis indicated that some species (Cyprideis torosa. torosa, Loxoconcha elliptica, Cytheroisrnfischeri, and Leptocythere lacertosa) had a positive correlation with salinity, whereas there are strong negative correlations between salinity and other nine species, which are, more related to freshwater environments
Pages : 16-32 | 2279 Views | 243 Downloads


Journal of Entomology and Zoology Studies Journal of Entomology and Zoology Studies
How to cite this article:
Selçuk Altınsaçlı. Species diversity and distribution of Ostracoda (Crustacea) in mesosaline Lake Bafa (Aegean Region, Turkey). J Entomol Zool Stud 2014;2(2):16-32.

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