Heading Offshore: New Challenges for Sustainable Shellfish Aquaculture Public Deposited

http://ir.library.oregonstate.edu/concern/conference_proceedings_or_journals/4q77fs27p

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  • As climate change awareness grows, embedded carbon has become an issue for affluent first world seafood consumers concerned with environmental sustainability. Diminishing wild fish stocks and rising fuel costs mean capture fisheries are becoming less attractive sources of product for seafood marketers with investment in brands. In the light of these considerations, aquaculture, in particular shellfish culture, becomes more attractive. However in many jurisdictions social, recreational, environmental and property rights constraints limit the expansion of aquaculture production in sheltered coastal waters. Opportunities previously considered not viable in the waters of continental shelf areas are now under consideration for industry development that addresses emerging sustainability requirements of seafood brands. This paper describes a current research project in New Zealand waters that takes a bioeconomic approach to the valuation of the culture of three bivalve shellfish species in relatively high energetic maritime conditions of Hawke Bay off the south eastern coast of New Zealand's North Island. The project uses mid water suspended long line technology to conduct trial cultures of greenshell mussels (Perna canaliculus), pacific oysters (Crassostrea gigas), and scallops (Pecten novaezealandiae) 6km offshore in exposed South Pacific Ocean waters. The principal outcomes of the project are that successful offshore operations cannot be approached simply as an extension of coastal production. In particular, consistent with theory development in the field, the evaluation of refinements to organisms in a real options framework shows clearly the economic importance of organism development through selective breeding for the viability of mid-water offshore shellfish aquaculture.
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  • Batstone, Chris, Kevin Heaseman, Nigel Keeleey and Ben Knight. 2008. Heading Offshore: New Challenges for Sustainable Shellfish Aquaculture. In: Proceedings of the Fourteenth Biennial Conference of the International Institute of Fisheries Economics & Trade, July 22-25, 2008, Nha Trang, Vietnam: Achieving a Sustainable Future: Managing Aquaculture, Fishing, Trade and Development. Compiled by Ann L. Shriver. International Institute of Fisheries Economics & Trade, Corvallis, Oregon, USA, 2008.
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