БАГАТОРІЧНА І РІЧНА МІНЛИВІСТЬ ВНУТРIШНЬОВИДОВОЇ ТА БІОЛОГІЧНОЇ СТРУКТУРИ ХАМСИ ENGRAULIS ENCRASICOLUS (L.) (PISCES: ENGRAULIDAE), ЗИМУЮЧОЇ У СХІДНОГО УЗБЕРЕЖЖЯ КРИМУ
Taxonomic composition and biological structures of anchovy Engraulis encrasicolus (L.), wintered off the east coast of Crimea (Kerch region) in 2006 – 2012, have been studied. Using otoliths (Skazkina’s method) intraspecific heterogeneity of anchovy has been installed. Two forms – Azov anchovy (E. e...
Збережено в:
| Дата: | 2023 |
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| Автори: | , , , |
| Формат: | Стаття |
| Мова: | Ukrainian |
| Опубліковано: |
Marine Ecological Journal
2023
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| Теми: | |
| Онлайн доступ: | https://mej.od.ua/index.php/mej/article/view/99 |
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| Назва журналу: | Marine Ecological Journal |
Репозитарії
Marine Ecological Journal| Резюме: | Taxonomic composition and biological structures of anchovy Engraulis encrasicolus (L.), wintered off the east coast of Crimea (Kerch region) in 2006 – 2012, have been studied. Using otoliths (Skazkina’s method) intraspecific heterogeneity of anchovy has been installed. Two forms – Azov anchovy (E. encrasicolus maeoticus) and Black Sea anchovy (E. encrasicolus ponticus) have been identified. Intraspecific structure (proportion of different intraspecific forms within the general population) has been studied. Regular change of Azov anchovy and Black Sea anchovy number ratio has been observed. Increasing of Black Sea anchovy share from 2 to 45% has been releaved. Long-term and seasonal changes of anchovy intraspecific structure and functional characteristics have been studied. Despite the intraspecific restructuring, biological state of anchovy population in long-term period was stable. |
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