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- 저자 : D Cowin, Peter B (검색결과 2 건)
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Aquaculture of Polychaeta: a Solution to Meet Demand for Polychaeta as a World Resources
William Olive, Peter J.,Islam, Monirul,D Cowin, Peter B 영남대학교 해양과학연구소 2000 국제심포지움 일정 및 발표논문집 Vol.2000 No.1
Polychaeta are not directly consumed as food in most countries but nevertheless are an important world resource. Economic demand for Polychaeta arises from two principal uses:- 1) use as a live bait in sea angling and 2)use as a nutritional supplement in the brood stock maturation systems for fin fish and marine Crustacea. The tradition of using live Polychaeta as baits fur hook based methods of fishing has a long history but the development of mass markets for the leisure industry has meant that supplies of worms close to centres of urban population frequently are insufficient to meet demand. The consequences of this have been non-sustainable over collection and the collection and distribution of worms across geographical boundaries. Both are undesirable and culture of polychaete worms has developed in Western Europe as a niche industry capable of supplying demand for this industry. This has in turn created a technical capability to meet the more recent, and potentially much lager, demand for worms as a component of diets designed to improve hatchery performance in fin fish and marine crustacean culture. Marine worms are at the base of many food chains and provide a natural component in the diet of many organisms including those recently introduced to culture. The sustainable development of shrimp (Peneaus) culture is presently hindered by the failure to develop hatchery systems capable of meeting world demand for Penaeus larvae. The discovery that incorporation of fresh worm biomass into the diets of brood stocks results in improved hatchery performance has resulted in rapid rise in demand for suitable worms and aquaculture presents an ideal source for this material that can be integrated with world patterns of production r food organisms. We have carried out an analysis of the lipid make up of Nereis virens cultured in NE England. Our results show that the lipid content (c 17%) is significantly higher that that in wild stocks of similar species. We have characterised the lipid content by GC and GCMS and show that the PUFA profile is particularly diverse and contains all the known essential PUFA. The cultured worms have an added value because of their production away from known sources of viral agents such as white spot disease. Suitable development of aquaculture to meet the growing demand for polycbaetes as a "resource" is now considered possible.
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