Influence of age and size on activity and stress resistance in marine bivalve Mytilus edulis

A. A. Sukhotin, D.L. Lajus, PA. Lesin

Результат исследований: Научные публикации в периодических изданияхстатья

Аннотация

We studied age and size dependence of pumping and respiration rates, mortality during prolonged air exposure and the changes in behavioural response to cyclic salinity fluctuations combined with elevated temperatures in the White Sea blue mussels Mytilus edulis L. Five age groups (2–9 years) and three size groups: small (S, mean wet tissue mass 0.12 g), medium (M, mean wet tissue mass 0.39 g) and large (L, mean wet tissue mass 0.78 g) were analysed. Respiration rate was measured in closed respirometers. Pumping rate was determined by a laser beam to monitor the changes in water level when the inhalant and exhalant siphons were in separate compartments of the aquarium. To study their response to environmental stress, the mussels were subjected to cyclic salinity fluctuations at normal (10 °C) and elevated (20 °C) temperatures. Two parameters were noted: (1) the salinity at which shell valves either opened or closed at both temperatures, and (2) intra-individual variation of the behavioural response to salinity
Язык оригиналане определен
Страницы (с-по)129-144
ЖурналJournal of Experimental Marine Biology and Ecology
Том284
Номер выпуска1-2
СостояниеОпубликовано - 2003
Опубликовано для внешнего пользованияДа

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