4.7 Article

Impact of open sea habitat on byssus attachment of suspension-cultured blue mussels (Mytilus edulis)

期刊

AQUACULTURE
卷 426, 期 -, 页码 189-196

出版社

ELSEVIER SCIENCE BV
DOI: 10.1016/j.aquaculture.2014.02.006

关键词

Mussel condition index; Attachment strength; Mechanical properties; Byssal threads; Metal content of filaments

资金

  1. Natural Sciences and Engineering Research Council (NSERC) of Canada
  2. Reseau Aquaculture Quebec (RAQ)
  3. Ministere des Peches et Oceans Canada (MPO)
  4. Programme Cooperatif de Recherche et Developpement en Aquaculture (PCRDA)
  5. Societe de Developpement de l'Industrie Maricole (SODIM)

向作者/读者索取更多资源

Offshore and open sea suspension-culture of mussels is largely in development but, in this particular environment, sleeved mussels are submitted to high-energy oceanographic conditions which could increase fall-offs. In this study, we compared the performance of open sea mussel culture to that of culture in a lagoon environment. Byssus attachment strength, condition index, mechanical properties of individual byssal threads, metal content of the filaments for mussels from both the open sea and the semi-closed lagoon sites were monitored as well as the environmental characteristics of these sites. The spawning event occurred approximately one month earlier for mussels in the open sea than in the lagoon, probably due to a difference in temperature and food availability. The attachment strength of the mussels was weaker in the open sea, even if individual threads were bigger and stronger than in the lagoon. This lower attachment strength seems related to a lower production of byssal threads. (C) 2014 Elsevier B.V. All rights reserved.

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