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July 14, 2013

Australia

Palinurid Lobster Diets

 

Palinurid lobsters, a genus of subtropical and temperate spiny lobsters, range from the southeast African coast to southwest Indian Ocean and from the northeastern Atlantic Ocean to the Mediterranean Sea.  The genus has five species: Palinurus gilchristi, P. delagoae, P. elephas, P. charlestoni and P. mauritanicus.

 

From Abstract: The closed-cycle rearing of palinurid lobsters in commercially relevant quantities currently represents one of the most difficult challenges facing modern-day aquaculture.  The length and complexity of their larval life cycle exacerbate the problem and represent the major bottleneck to their successful farming.  The general consensus is that developments in nutrition research will provide the necessary breakthroughs to make the closed-cycle rearing of palinurids a reality.  Due to the cryptic nature of their feeding preferences and complex larval morphology, a commercially formulated feed for their culture does not exist.  Nevertheless, there has been a wealth of research conducted to uncover their larval nutritional requirements.

 

This review presents a synthesis of that research, ranging from investigations of larval morphology and feeding behavior, hatchery nutrition practices, the identification of wild prey items and the nutritional content of wild-caught larval species.  Based on the information available, this review culminates with a “best guess” formulation for a larval spiny lobster diet.  Ultimately, the overall success of the larval cycle appears to be dictated by the stockpiling of lipids to fuel an energy-demanding metamorphosis and a subsequent non-feeding puerulus phase.

 

Sources: 1. Reviews in Aquaculture.  Palinurid Lobster Aquaculture: Nutritional Progress and Considerations for Successful Larval Rearing.  David S. Francis (d.francis@aims.gov.au, Australian Institute of Marine Science, PMB No 3, Townsville, Queensland 4810, Australia.), Matt L. Salmon, Matt J. Kenway and Michael R. Hall.  Early online view before inclusion in an issue.  Published online on July 4, 2013.  2. Lobsters: Biology and Management, Aquaculture and Fisheries.  Editor Bruce Phillips (Department of Environmental Biology, Muresk Institute, Curtin University of Technology, Australia).  Blackwell Publishing.  2006.

 

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