Feeding Habits of the Atka Mackerel Pleurogrammus monopterygius in Waters off the Central Kuril Islands
| Autor: | A. M. Orlov, S. E. Frenkel |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
Atka mackerel Plateau geography.geographical_feature_category biology Mesopelagic zone 010604 marine biology & hydrobiology Diet composition 04 agricultural and veterinary sciences Stomach fullness Aquatic Science biology.organism_classification 01 natural sciences Pleurogrammus Condition factor Fishery Geography 040102 fisheries 0401 agriculture forestry and fisheries Fish General Agricultural and Biological Sciences |
| Zdroj: | Journal of Ichthyology. 59:58-64 |
| ISSN: | 1555-6425 0032-9452 |
| DOI: | 10.1134/s0032945219010107 |
| Popis: | The diet composition, stomach fullness, and condition factor of different size groups of the Atka mackerel Pleurogrammus monopterygius were studied in the area of the submarine plateau located in the Pacific waters off the central Kuril Islands, southeast of Onekotan Island, in June–July 1996. According to previously published data, mesopelagic fish forms the major part of the diet of Atka mackerel in this area, but the present study has revealed the leading role of Copepoda and Appendicularia, which is explained by different sites of material sampling: respectively, in the areas adjacent to the edge of the plateau and in its central part. It is assumed that the substantially lower condition factor of fish, as compared to previously published values, with the similar stomach fullness indices may result from the consumption of mainly low-calorie food (copepods and appendicularians). |
| Databáze: | OpenAIRE |
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