Dynamics of the state of the Azov and Black Sea population of the European anchovy (Engraulis encrasicolus Linnaeus, 1758) off the coasts of Abkhazia during the winter migration season in 2011–2021
Based on the available data for a ten-year period (2011–2021), the ecological structure and morphobiological composition of the European anchovy (Engraulis encrasicolus L., 1758) population wintering in the coastal waters of Abkhazia have been analyzed. This work is of considerable theoretical and practical value for the fishing industry, since it allows for interpretation of the dynamics of anchovy populations wintering off the coasts of Abkhazia. This work is aimed at the intraspecific analysis of the population characteristics of the European anchovy inhabiting the Azov and Black Seas. To obtain the necessary information, standard methods for collecting and processing ichthyological material were used. Following the data collected in the course of the monitoring during the investigated period, the dynamics of the length and age composition of catches has been considered, and the intra-annual and inter-annual patterns in the anchovy fishing (Black Sea and Azov Sea stocks) are presented. The cyclical nature of the change in its stocks has been revealed, and the changes in population characteristics as evidenced by the composition of catches and the spatial distribution of wintering anchovy aggregations in the Abkhazian waters of the Black Sea have been recorded. The absolute values of catches and their long-term fluctuations are given. This research provided the data characterizing the status of the Azov and Black Sea population of the European anchovy during its wintering season as dynamically stable with a tendency for stock reduction and the decrease in the number of fish individuals exceeding the minimum landing size.
| Main Authors: | , |
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| Format: | Journal Contribution biblioteca |
| Language: | Russian |
| Published: |
2022
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| Subjects: | European anchovy, Morphobiological composition, Age structure, Size groups, Cyclic stock changes, Fishing dynamics, Европейский анчоус, Морфобиологическая структура, Размерно-возрастная структура, Spatial distribution, Пространственное распределение, ASFA_2015::A::Anchovy fisheries, ASFA_2015::M::Migratory species, ASFA_2015::A::Age composition, |
| Online Access: | http://hdl.handle.net/1834/42489 |
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