• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Lakes & Reservoirs >Management issues in the Lake Victoria watershed
【24h】

Management issues in the Lake Victoria watershed

机译：维多利亚湖流域的管理问题

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Lake Victoria is the largest lake in Africa (68 800 km2) and is the eighth largest lake in the world by volume. The three East African countries of Tanzania, Uganda and Kenya share Lake Victoria and its resources. The total annual catch of fish from the lake ranges between 400 × 106 kg and 500 × 106 kg, bringing these riparian countries a combined annual income of approximately US$250 000–500 000 from exports alone. Approximately 30 million people live in the riparian region and the catchment, with about 2 million of these depending directly or indirectly on fishing activities. Tragically, Lake Victoria’s extremely diverse fauna was decimated in only 30 years following the introduction of non-native Nile perch in the early 1960s. An estimated 200 endemic cichlid species became extinct. Dramatic increases in overfishing, pollution from various sources, effects of noxious water weeds and other associated problems threaten the sustainability of the lake’s resources and the economies of the riparian governments and peoples. Regulations governing Lake Victoria’s resources are different in each country. The laws concerning treatment of effluents from point sources in the three countries are not harmonized, neither are implementation or enforcement provisions. The governments of Kenya, Uganda and Tanzania have begun to put in place regional mechanisms to address the lake’s many problems including the creation of a permanent regional international institution through the establishment of the Lake Victoria Fisheries Organization (LVFO). A strategic vision document and action plans have been developed. Efforts are being made at local, national and regional levels to control the water hyacinth, including manual pulling, mechanical harvesting and introduction of weevils that weaken hyacinth root systems. To address the problem of overfishing, fishermen committees at landing beaches have been put in place. Each country has committed to take all necessary measures including legislation to implement the decisions of the LVFO governing bodies. All three countries have agreed to adopt and enforce legislation and regulations prohibiting the introduction of non-indigenous species to the lake and to enforce existing regulations regarding fisheries. A Global Environment Facility project which provides funding to the Lake Victoria Fisheries Organization addresses land use management, catchment forestation, fisheries research and management, water hyacinth control, industrial effluent treatment and municipal waste treatment.
机译：维多利亚湖是非洲最大的湖泊（68 800平方千米），按体积计算是世界第八大湖泊。坦桑尼亚，乌干达和肯尼亚这三个东非国家共享维多利亚湖及其资源。每年从湖中捕捞的鱼的总量在400×106千克和500×106千克之间，仅这些出口国就使这些沿岸国家的年总收入约为25万至50万美元。沿岸地区和流域约有3000万人，其中约200万人直接或间接依赖捕鱼活动。可悲的是，自1960年代初引入非本地尼罗河鲈鱼以来，维多利亚湖极其多样化的动物群在短短30年内就被淘汰。估计有200种地方性丽鱼科物种灭绝。过度捕捞，各种来源的污染，有毒的水草的影响和其他相关问题的急剧增加，威胁着湖泊资源的可持续性以及沿岸政府和人民的经济。每个国家对维多利亚湖资源的管理规定都不同。关于这三个国家的点源废水处理的法律不统一，执行或执行规定也不统一。肯尼亚，乌干达和坦桑尼亚政府已开始建立区域机制，以解决该湖的许多问题，包括通过建立维多利亚湖渔业组织（LVFO）建立永久的区域国际机构。已经制定了战略远景文件和行动计划。正在努力在地方，国家和地区各级控制水葫芦，包括人工拉动，机械收割和引入削弱风信子根系的象鼻虫。为了解决过度捕捞的问题，在登陆海滩上设立了渔民委员会。每个国家承诺采取一切必要措施，包括实施LVFO理事机构决定的立法。这三个国家都同意通过并执行法律法规，禁止将非本地物种引入该湖，并执行有关渔业的现行法规。一个全球环境基金项目，为维多利亚湖渔业组织提供资金，涉及土地使用管理，集水区造林，渔业研究和管理，水葫芦控制，工业废水处理和市政废物处理。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号