Spatial and temporal variations of the trophodynamics of anchovy (Engraulis japonicus) in the southern coastal waters of Korea using fatty acid trophic markers
| Autor: | Mun-Seong Choi, Haeyoung M. Lee, Heeyong Kim, Sungchul C. Bai, Jin Yeong Kim |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
chemistry.chemical_classification
biology Ecology food and beverages Fatty acid biology.organism_classification General Biochemistry Genetics and Molecular Biology Engraulis chemistry Anchovy Calanus Juvenile lipids (amino acids peptides and proteins) Animal Science and Zoology Copepod Polyunsaturated fatty acid Trophic level |
| Zdroj: | Animal Cells and Systems. 18:425-434 |
| ISSN: | 2151-2485 1976-8354 |
| DOI: | 10.1080/19768354.2014.982706 |
| Popis: | The abundance and proportion of specific fatty acids differ among fundamental groups of lower trophic levels. Some prey fatty acids are transferred directly to predators. In this study, fatty acid compositions of juvenile, young, and adult anchovies (Engraulis japonicus) were evaluated as trophic markers for feeding environments in four regions (Tongyeong, Namhaedo, Yeosu, and Jindo) of the southern coastal waters of Korea. The condition factor (CF) increased with advancing life stage, and the gonad somatic index (GSI) peaked in May. C14:0, C16:0, C18:0, C16:1n-7, C18:1n-9, C20:1n-9, C20:5n-3, and C22:6n-3, among other saturated fatty acids (SFA), monounsaturated fatty acids (MUFA), and polyunsaturated fatty acids (PUFA) were predominant in all life stages. We observed geographic eastward and life-stage dependent trends wherein C14:0, C16:1n-7 C18:1n-9, and C20:5n-3 fatty acids increased, while C22:6n-3 decreased during development from juvenile to adult in most season. Indicating Calanus copepod trophic ... |
| Databáze: | OpenAIRE |
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