Effects of temperature on the moulting and locomotory activity of hatchery-reared juvenile lobsters (Homarus gammarus) at Helgoland (North Sea)
| Autor: | Friedrich Buchholz, Isabel Schmalenbach |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
0106 biological sciences
biology 010604 marine biology & hydrobiology 04 agricultural and veterinary sciences Aquatic Science Oceanography biology.organism_classification 01 natural sciences Hatchery Fishery Homarus gammarus Threshold temperature 040102 fisheries 0401 agriculture forestry and fisheries Juvenile 14. Life underwater North sea Moulting Ecology Evolution Behavior and Systematics |
| Zdroj: | EPIC3Marine Biology Research, TAYLOR & FRANCIS AS, 9(1), pp. 19-26, ISSN: 1745-1000 |
| Popis: | Optimized release conditions of hatchery-reared juvenile lobster (Homarus gammarus) can reduce loss in the field. The effect of seasonal temperature on the behavioural and physiological activity of lobsters was examined, observing the timing of moulting and locomotory activity in juvenile lobsters maintained at increasing temperatures under standardized laboratory conditions. The juveniles of three different year and size classes mostly moulted when a threshold temperature between 12 and 14°C was reached. In addition, the locomotory activity of lobsters showed significant responses to seasonal temperatures between 12 and 15°C in the dark-phase. The knowledge about the temperature-dependent activity of lobsters may be helpful to explain behaviour in the field and in assessing the chances of a future large-scale stock enhancement programme. |
| Databáze: | OpenAIRE |
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