Effect of temperature and viscosity on swimming velocity of the copepod Acartia tonsa, brine shrimp Artemia salina and rotifer Brachionus plicatilis

Aquatic Biology

关键词: Swimming velocity;    Temperature;    Kinematic viscosity;    PVP;    Q10;   

DOI  :  10.3354/ab00093

学科分类：生物科学（综合）

来源: Inter-Research

【 摘 要 】

ABSTRACT: Beating cilia are important organelles for swimming in many zooplanktonic aquatic organisms, including many invertebrate larvae, rotifers and ciliates, but other planktonic organisms, such as copepods and brine shrimps, use muscle-powered swimming appendages. In recent studies we found that the temperature-dependent viscosity of seawater is the key physical/mechanical factor that controls the beat frequency of water-pumping cilia in mussels and the swimming velocity in a ciliate. The present study on the swimming velocity of 3 zooplankton organisms, however, shows that the response of swimming velocity to a change in viscosity is different when due to a change in temperature or, at constant temperature, due to a manipulation of viscosity by addition of a high-molecular-weight polymer (polyvinyl pyrrolidone, PVP) to the ambient seawater. There is a biological effect (fraction of total reduction of swimming velocity for a 10°C temperature reduction) that is found to be largest for the brine shrimp

【 授权许可】

CC BY