Genetic investigation on Cuvier’s beaked whale, Ziphius cavirostris on the coast of Turkey and Northern Cyprus, based on mtDNA sequences.
World Marine Mammal Conference, Barcelona, İspanya, 7 - 12 Aralık 2019, ss.716, (Özet Bildiri)
- Yayın Türü: Bildiri / Özet Bildiri
- Basıldığı Şehir: Barcelona
- Basıldığı Ülke: İspanya
- Sayfa Sayıları: ss.716
- Dokuz Eylül Üniversitesi Adresli: Hayır
Özet
The beaked whales are the least known cetacean taxa in the world and mostly known through stranding records in the world oceans. Cuvier’s beaked whale Ziphius cavirostris is the only beaked whale species commonly found in the Mediterranean Sea, but their distribution is cosmopolitan the northern hemisphere. They are known to be sensitive to noise pollution, indicated by stranding cases due to seisimic surveys or naval operations using mid-frequency sonar. Their genetic structure has little been studied due to the lack of samples. Five strandings of Cuvier’s beaked whale were reported along the coast of Turkey and northern Cyprus in June 2016 and March, November 2017. In this first genetic study on the Cuvier’s beaked whales from the Aegean Sea and the Levantine Sea, undertaken with these stranded samples, mitochondrial DNA control region (444 bp) and cytochrome b (424 bp) sequences revealed two haplotypes (four out of five individuals had a single haplotype). Control region haplotypes were identical to two previously identified ones from the Ionian (Greece) and Adriatic (Croatia) Seas, the only areas previously investigated within the Mediterranean basin. The isolated eastern Mediterranean subpopulation was highly differentiated based upon the presence of two unique haplotypes, which were not found outside of the Mediterranean. More samples from the Mediterranean Sea (especially the western basin) need to be sequenced with the same mtDNA markers for a better understanding of the genetic population structure of this species, which can be used to elaborate more concrete conservation measures for this species.