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Book (stand-alone)Manual / guide青少年生物多样性科普手册 2022
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《青年与联合国全球联盟学习和行动系列：青少年生物多样性科普手册》是为学校、青年团体和其他好奇的年轻学习者提供的教育资源。本手册从基因、物种和生态系统方面解释了生物多样性。它探索了海底、陆地、空中、河流和湖泊以及生产我们食物的农场的生物多样性。本手册考虑了为什么生物多样性很重要，人类如何影响生物多样性，以及我们必须做些什么来保护世界生物资源。在手册的最后，提供了一些鼓舞人心的青年人领导倡议的例子，并给出了容易遵循的动作计划来帮助你制定自己的生物多样性项目和保护活动。 -
Book (stand-alone)Technical bookCapture-based aquaculture. The fattening of eels, groupers, tunas and yellowtails 2004
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No results found.CAPTURE-BASED AQUACULTURE defines and reviews certain practices that are on the interface between aquaculture and capture fisheries. Specifically, the report considers the on-growing or fattening of four species groups - eels, groupers, tunas and yellowtails, which is based on the use of wild-caught “seed”. The report commences with an introductory section on the overlap between aquaculture and fisheries and their global trends. Chapters on the four species groups follow, which each contain sect ions on species identification; fishery trends; the supply and transfer of “seed” for stocking purposes; aquaculture trends; culture systems; feeds and feeding regimes; fish health; harvesting; and marketing. Further chapters review the environmental and social/economic impacts of capture-based aquaculture, together with the relevant fisheries and aquaculture management issues. Finally, the report reviews food safety issues and draws some conclusions that identify topics for future consideration . -
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