Изменения в видовом составе и численности ихтиопланктона Азовского и северо-восточной части Черного морей за период 2006–2017 гг. под воздействием природных и антропогенных факторов
Variations in species and quantitative composition of ichthyoplankton in the Azov Sea and the Russian part of the Black Sea due to changes in the environmental conditions are assessed. The ichthyoplankton investigations have been carried out in the Azov and Black Seas Basin for the last 50 years by means of an 80 cm mesh size conical plankton nets (CPN-80). The samples were collected on board the vessel proceeding at the speed of 3 knots every 5 or 10 minutes depending on the area of studies. It is found out that for the last 10–12 years, the ichthyoplanktonic community of the Azov Sea and north-eastern Black Sea (Russian Federation) has undergone taxonomic and quantitative changes, caused by natural factors and anthropogenic pressure. As a result of water salinity increase in the Azov Sea, only marine fish species at early developmental stages were found in the ichthyoplankton catches. The change in thermal regime of the north-eastern Black Sea facilitated spreading of warm water layer during the summer season and increase of reproductive performance of the summer-spawning species.
| Main Authors: | , |
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| Other Authors: | |
| Format: | Journal Contribution biblioteca |
| Language: | Russian |
| Published: |
2018
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| Subjects: | Species composition, Water salinity, Reproduction cycle, Ichthyoplankton, Check lists, Mesh size, Long-term changes, Anthropogenic factors, Marine fish, Alosa immaculata, Engraulis encrasicolus maeoticus, Liza haematocheilus, Rutilus rutilus, Psetta maeotica torosa, Neogobius syrman, ASFA_2015::A::Aquatic communities, ASFA_2015::I::Ichthyofauna, |
| Online Access: | http://hdl.handle.net/1834/14188 |
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