Sightings of Cetaceans in the waters of Yuzhny Sea Port (Hryhorivsky Estuary, Black Sea) in 2015–2016

The use of transformed coastal ecosystems by the Black Sea cetaceans is an important, but little studied issue. In 2015–2016, coastal visual observations of cetaceans were conducted in the waters of Yuzhny Sea Port. The area was regularly used by common dolphins (they were sighted in 24 days of 64)...

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Bibliographic Details
Published in:Proceedings of the Theriological School
Main Authors: Оksana Savenko, Julia Ivanchikova, Bohdan Hulak, Tatyana Derkacheva
Format: Article in Journal/Newspaper
Language:English
Russian
Ukrainian
Published: National Academy of Sciences of Ukraine. National Museum of Natural History 2016
Subjects:
Online Access:https://doi.org/10.15407/ptt2016.14.134
https://doaj.org/article/1863fafe663a438a8cc899aac832f438
Description
Summary:The use of transformed coastal ecosystems by the Black Sea cetaceans is an important, but little studied issue. In 2015–2016, coastal visual observations of cetaceans were conducted in the waters of Yuzhny Sea Port. The area was regularly used by common dolphins (they were sighted in 24 days of 64) and also by harbour porpoises (7 sightings). Group sizes of the common dolphins reached up to 25 individuals (Median = 7), and of the harbour porpoises — up to 5 (Median = 4); calves and juveniles were present in most groups. The primary behaviour of cetaceans was feeding. Because of significant concentrations of fish in Hryhorivsky Estuary, the area of Yuzhny Sea Port is an important habitat for the Black Sea cetaceans.