| Автор | André S. C. Schmitt |
| Автор | Uglow, Roger F. |
| Дата выпуска | 1998 |
| dc.description | This work studied some of the metabolic responses of Nephrops norvegicus to a progressive reduction in water oxygen tension (PwO<sub>2</sub>) at 12 °C. Experiments were designed to simulate water quality conditions that may occur during the trade of live crustaceans. Oxygen consumption rates and ammonia efflux rates were found to be constant over a wide range of PwO<sub>2</sub> values (20.4-5.9 kPa). A similar result was found for the difference between post-branchial and pre-branchial oxygen concentrations (20.4-2.6 kPa), obtained from a separate experiment. Anaerobic pathways, however, were activated after PwO<sub>2</sub> reached 6.3 kPa, as blood lactate and glucose concentrations increased from 1.24 ± 0.08 and 1.17 ± 0.19 (T<sub>0</sub> values) to 10.55 ± 8.99 and 3.63 ± 0.89 mg · 100 mL<sup>−1</sup> respectively. N. norvegicus was able to maintain blood pH levels at relatively constant values despite a drop in water pH levels and the accumulation of lactate observed at low PwO<sub>2</sub>. Heart rates also remained stable during PwO<sub>2</sub> reductions, but scaphognathite beat rate increased considerably, probably as an attempt to maintain steady weight-specific oxygen consumption rates. N. norvegicus appeared to be well adapted to cope with progressive hypoxia as may occur during holding and transportation procedures. |
| Формат | application.pdf |
| Издатель | EDP Sciences |
| Копирайт | © Elsevier, IRD, Inra, Ifremer, Cemagref, CNRS, 1998 |
| Тема | Hypoxia |
| Тема | metabolism |
| Тема | Nephrops norvegicus |
| Название | Metabolic responses of Nephrops norvegicus to progressive hypoxia |
| Тип | research-article |
| DOI | 10.1016/S0990-7440(98)80064-8 |
| Electronic ISSN | 1765-2952 |
| Print ISSN | 0990-7440 |
| Журнал | Aquatic Living Resources |
| Том | 11 |
| Первая страница | 87 |
| Последняя страница | 92 |
| Аффилиация | André S. C. Schmitt ; Department of applied biology, the University of Hull, Kingston upon Hull, HU6 7RX, England |
| Аффилиация | Uglow Roger F.; Department of applied biology, the University of Hull, Kingston upon Hull, HU6 7RX, England |
| Выпуск | 2 |
