A global overview of restorative shellfish mariculture

Dr. Alvar Carranza and Dr. Philine S.E. zu Ermgassen Fisheries & Aquaculture

A global overview of restorative shellfish mariculture
Arhnue Tan on Pixabay

Mariculture of marine organisms annually represents about 36 percent of global aquaculture, with mollusks representing over 58 percent in live weight. Mollusk populations in some locations are, however, threatened by degradation of the ecosystems and/or overfishing. This threat is increasingly being addressed through restorative shellfish mariculture, or RSM, as opposed to mariculture alone.

There is no general consensus in the literature on what can and cannot be considered RSM. While maximization of benefits other than provisioning services is often considered a prerequisite, in other cases the maximization of fisheries yields is prioritized. We define RSM as a multi- and/or interdisciplinary approach to the farming of marine shellfish, involving some form of human intervention during the species life cycle to address negative socio-ecological impacts derived from the unsustainable use of marine shellfish.

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