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In situ orientation of the Manila clam Ruditapes philippinarum (Bivalvia, Veneridae): preliminary results
Defossez, J.-M.; Daguzan, J. (1996). In situ orientation of the Manila clam Ruditapes philippinarum (Bivalvia, Veneridae): preliminary results. Vie Milieu (1980) 46(1): 21-24
In: Vie et Milieu. Observatoire Oceanographique Banyuls: Banyuls-sur-Mer. ISSN 0240-8759, more
Peer reviewed article  

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Keyword
    Marine
Author keywords
    SUSPENSION FEEDERS; ORIENTATION; FILTRATION

Authors  Top 
  • Defossez, J.-M.
  • Daguzan, J.

Abstract
    The in situ orientation of 226 mature Manila clams Ruditapes philippinarum (Adams & Reeve) was recorded. The results show that 88 % of these typical suspension feeders present an orientation at an angle of 22.5 to 67.5° with the crossflow. We propose an hypothesis in order to explain this unexpected observation and we point out the importance of such a basic adaptation regarding nutrition efficiency.

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