Biodeposit Production in Mediterranean Shellfish Farms : Non-Linear Relationships with the Environment

  • Christian Grenz
Conference paper
Part of the Nato ASI Series book series (volume 33)

Abstract

In intensive shellfish cultures, biodeposit production leads to several kinds of problems: on one hand, with regard to the establishment of the carrying capacity of the site, and on the other hand, concerning the organic matter accumulation on the bottom and the consecutive risks of pollution (Haven and Morales-Alamo 1966, Bernard 1974, Kautsky and Evans 1987). Thus, an estimation of the biodeposition rate of mussels (Mytilus galloprovincialis) and oysters (Crassostrea gigas) was performed during a two year field study using an in situ sediment trap design, moored at mean depth (2 m). In parallel to these vertical flux measurements, seston concentrations and current speeds were recorded in order to quantify the upstream horizontal food fluxes.

Keywords

Particulate Suspend Matter Current Speed Filter Feeder Organic Matter Accumulation Bivalve Filter Feeder 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

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Copyright information

© Springer-Verlag Berlin Heidelberg 1993

Authors and Affiliations

  • Christian Grenz
    • 1
  1. 1.Centre Océanologie MarseilleCNRS UAMarseilleFrance

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