Effect of a tripeptide on the aggregational behaviour of the blue mussel<Emphasis Type="Italic"> Mytilus edulis</Emphasis> |
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Authors: | C G N de Vooys |
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Institution: | (1) Alterra-Marine and Coastal Zone Research, P.O. Box 167, 1790 AD Texel, Den Burg, The Netherlands;(2) Royal Netherlands Institute for Sea Research, P.O. Box 59, 1790 AB Texel, Den Burg, The Netherlands; |
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Abstract: | Aggregation of blue mussels (Mytilus edulis) is stimulated by environmental chemical stimuli. Experiments carried out in a basin with a one-way current showed that individual mussels were attracted to upstream mussel concentrations and moved actively in their direction. The involvement of a tripeptide in this migration was implicated by experiments demonstrating that individual mussels were effectively attracted and moved actively towards a source of glycine–glycine–arginine at concentrations of 0.56–3.78×10–10 M. A distinct seasonal difference in the extent of movement towards mussel concentrations was found. From the beginning of autumn, movement decreases linearly towards zero movement in winter. |
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