养虾场池塘中的各种物质会污染水体,包括营养物、代谢废物、兽药化学物质和因侵蚀而悬浮的土壤颗粒。这份报告讨论了如何监测水质的这些方面,这对养虾户来说很重要。上层供应的虾池进水必须健康,不含毒素,以保护虾的生长,出水必须足够干净,以免损害下游的水生态系统和水质标准。
CBF本质上是一个股票和重新捕获策略,其中放养鱼类饲料和生长在天然产生的食物资源,并且是最有效的,当社区管理的。从CBF的回报可能是在营养方面以及货币利益的社区非常显著。在这个报告对食用鱼的需求和方式,并引入内陆水域CBF做法的手段的相关背景信息的处理。 P>
近年来,放养计划受到了大量的批评,因为人们认为孵育出的鱼对野生种群的遗传结构和适应性产生了影响,疾病的转移,引进外来物种和非目标物种,以及它们对其他水生物种和环境的影响。为了使增加库存对渔业的潜在利益最大化,所有的库存计划都应采取负责任和生态可持续的方法。
从外来物种向使用本地物种的转变被认为可以抵消以养殖为基础的渔业的负面影响。然而,人工孵化的鱼苗也可能对野生鱼种的遗传多样性和完整性构成潜在威胁。本文总结了在CBF中使用外来物种和使用本地物种的优缺点,以及在决定CBF的物种选择时应遵循的步骤。
这是基于出版物老挝养殖渔业发展的总结,无论是在一次文献,或张贴水产养殖中心在亚太地区的网络的网站上的手册和报告,这源自资助项目雷竞技下载链接雷竞技ios下载雷竞技客服电话跟雷竞技跟雷竞技自1997年以来澳大利亚中心国际农业研究(ACIAR)。 p>
The application of culture-based fisheries in Cambodian waters commenced with a project in sixteen small reservoirs located in four provinces. Initial consultations with the village communities responsible for the water regime management were held and their agreement obtained for monitoring and cooperating through the trial period. One common feature in all the reservoirs selected is the provision of a “conservation zone”, generally in the deeper areas of the water body, where fishing is prohibited.
在斯里兰卡的村水库养殖渔业是涉及农产品的农民没有渔业以往的经验的公共活动。意识方案已经在小山村水库促进建立CBF的。 Dissemination of research findings through means such as production of a documentary film, publication of a monograph which was translated to several regional languages, and holding a series of regional workshops were instrumental for CBF development at the regional level.
斯里兰卡是幸运的大量灌溉容器。Culture-based fisheries (CBF) in seasonal reservoirs was initiated in the 1980’s and the government has recognised CBF as an effective way of increasing fish supplies in rural areas, at affordable prices, while providing employment and income to farmers and thereby contributing towards alleviation of poverty. The role of fisher community based organisations and fisheries management for effecting successful CBF are discussed.