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Species assemblages of Ostracoda (Crustacea) from west-site of Turkey: their indicator potential for lotic and lentic habitats

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Abstract

To describe the indicator potential of non-marine ostracods for lotic (streams) and lentic (lakes) habitats, 42 taxa (27 recent, 15 subfossil) were evaluated from 62 sampling sites in West-site of Turkey during May of 2018. Nannocandona faba is a new report for Turkey. A higher Shannon diversity value was reported for lakes (H′ = 2.16) than streams (H′ = 1.62) when they had equal number of species (17 spp.). SIMPER analysis showed 53.01% contribution of Psychrodromus olivaceus, Candona neglecta, Heterocypris incongruens and Stenocypria fischeri with a 96.72% difference between lakes and streams. Both TWINSPAN and Indicator Species Analysis revealed that P. olivaceus (p < 0.01) and S. ficheri (p < 0.05) were found to be candidate indicators for the lotic and lentic habitats, respectively. The first two axes of CCA explained 66.90% of the relationship between species and environmental variables when elevation, dissolved oxygen concentration and water temperature showed influential effects (p < 0.05) on the ordination of species. Species with reduced swimming setae (17 spp.) were ordinated relatively closer to the center of CCA. Results showed that ecological tolerances of species seemed to be more deterministic than morphological characters (e.g., swimming setae) on their habitat preferences. A broad knowledge of the morphological and ecological preferences of the species is needed to distinguish whether habitat is chosen by species due to its ecological needs or morphological characteristics. Studies providing information about the current ecological preferences of the species give the opportunity to understand the habitat of these species.

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Acknowledgments

I would like to give my sincere appreciation to Dr. Carole SARAVITZ (Phytotron, North Carolina State University, Pilsbury Cir, Raleigh) for her help with English. My special thanks go to Prof. Dr. Okan KÜLKÖYLÜOĞLU (Bolu Abant İzzet Baysal University) for his valuable comments on the first draft of study. I thank to Mrs. Filiz Batmaz and Mr. Çağatay Çapraz for their help during field and laboratory studies. This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors.

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Correspondence to Mehmet Yavuzatmaca.

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Yavuzatmaca, M. Species assemblages of Ostracoda (Crustacea) from west-site of Turkey: their indicator potential for lotic and lentic habitats. Biologia 75, 2301–2314 (2020). https://doi.org/10.2478/s11756-020-00494-y

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  • DOI: https://doi.org/10.2478/s11756-020-00494-y

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