Research Article

Invasive Coptodon (Perciformes: Cichlidae) in southwest Turkey: Species identification using sequence data

Volume: 39 Number: 2 June 15, 2022
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Invasive Coptodon (Perciformes: Cichlidae) in southwest Turkey: Species identification using sequence data

Abstract



Nonnative cichlids (Coptodon zillii) have established populations in the Köyceğiz and Koca Lakes, located on the west coasts of Mediterranean Turkey. Conflicting species names in these lakes have been reported for many years. We studied samples from current populations of Coptodon in these lakes and the Pecenek canal concerning existing GenBank data. We estimated the possible ancestral population using sequence data in the mitochondrial D-loop segment. Inter and intra-population morphological variations of Coptodon were examined using 25 morphological and six meristic characters. Haplotype analysis revealed three unique haplotypes in three populations of Coptodon, indicating poor genetic diversity. Both maximum likelihood and Bayesian trees showed that these three haplotypes constitute a distinct subclade within the Coptodon zillii clade. This phylogenetic pattern indicates that populations of both lakes were founded by a single invasion of C. zillii and belong to a single species. Consistent with phylogenetic data, the populations of both lakes do not exhibit significant phenotypic divergence, though the Pecenek population is slightly divergent. Intra-population morphological variability may be due to phenotypic plasticity in response to habitat heterogeneity within the lakes.


Keywords

Supporting Institution

Akdeniz University Research Fund

Project Number

FYL-2020-5417

Thanks

We would like to thank Prof. Dr. Yılmaz Emre, the coordinator of that project, for allowing us to use the Coptodon specimens. We also thank Onur Uluar for his help in the preparation of the phylogenic tree figures.

References

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Details

Primary Language

English

Subjects

Structural Biology , Ecology , Hydrobiology , Zoology

Journal Section

Research Article

Publication Date

June 15, 2022

Submission Date

March 1, 2022

Acceptance Date

April 26, 2022

Published in Issue

Year 2022 Volume: 39 Number: 2

APA
Sarıbaş, D., Kaymak, N., Yahyaoğlu, Ö., & Çıplak, B. (2022). Invasive Coptodon (Perciformes: Cichlidae) in southwest Turkey: Species identification using sequence data. Ege Journal of Fisheries and Aquatic Sciences, 39(2), 135-144. https://doi.org/10.12714/egejfas.39.2.07

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