• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>The Progressive Fish-Culturist >PREVENTION OF ZEBRA MUSSEL INFESTATION AND DISPERSAL DURING AQUACULTURE OPERATIONS
【24h】

PREVENTION OF ZEBRA MUSSEL INFESTATION AND DISPERSAL DURING AQUACULTURE OPERATIONS

机译：在水产养殖作业中预防斑马鱼的感染和传播

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

The zebra mussel Dreissena polymorpha, an exotic invasive species, poses a major threat to North American fish management programs and the aquaculture industry. Fish hatcheries may become infected with zebra mussels from a variety of sources, including the water supply, fish shipments, boats, and equipment. The hatcheries could then serve as agents for the overland dispersal of zebra mussels into stocked waters and to other fish hatcheries. We evaluated the effectiveness and safety of aquaculture chemicals for use in controlling zebra mussels in fish hatcheries and preventing dispersal of veligers during fish transport. Chemicals were evaluated for use in fish transport and as disinfectants for ponds and equipment. Standardized static toxicity tests were conducted with representative species of warmwater, coolwater, and coldwater fishes and with larval (3-d-old veligers), early juvenile (settling larvae), and adult zebra mussels. Chemical concentrations and exposure durations were based on recommended treatment levels for fish, eggs, and ponds. Recommended treatment levels were also exceeded, if necessary, to establish lethal levels for zebra mussels of different developmental stages. Our results indicate that some chemicals currently in use in hatcheries may be effective for controlling zebra mussels in various operations. Chloride salts were the safest and most effective therapeutants tested for use in fish transport. The toxicity of chloride salts to fish varied among species and with temperature; only one treatment regime (sodium chloride at 10,000 mg/L) was safe to all fish species that we tested, but it was only effective on veliger and settler stages of the zebra mussel. Effective disinfectants were benzalkonium chloride for use on equipment and rotenone for use in ponds after fish are harvested. The regulatory status of the identified chemicals is discussed as well as several nonchemical control alternatives.
机译：斑马贻贝Dreissena polymorpha是一种外来入侵物种，对北美鱼类管理计划和水产养殖业构成了重大威胁。鱼类孵化场可能会受到各种来源的斑马贻贝的感染，包括水供应，鱼类运输，船只和设备。然后这些孵化场可以作为斑马贻贝在陆上扩散到放养水域和其他鱼类孵化场的媒介。我们评估了水产养殖化学品在鱼孵化场中控制斑马贻贝并防止鱼在运输过程中扩散的有效性和安全性。评估了化学品在鱼类运输中的用途以及池塘和设备的消毒剂。对温水鱼，冷水鱼和冷水鱼的代表性种类以及幼虫（3岁龄的食者），幼体（定居幼虫）和成年斑马贻贝进行了标准的静态毒性试验。化学物质的浓度和暴露时间基于鱼类，卵和池塘的推荐处理水平。如有必要，还超过了推荐的治疗水平，以建立不同发育阶段的斑马贻贝的致死水平。我们的结果表明，目前在孵化场中使用的某些化学品可能在各种操作中对于控制斑马贻贝可能是有效的。氯化盐是经测试用于鱼类运输的最安全，最有效的治疗剂。氯化物盐对鱼类的毒性随物种和温度的变化而变化。对于我们测试的所有鱼类，只有一种处理方案（氯化钠10,000 mg / L）是安全的，但仅对斑马贻贝的迁徙和定居阶段有效。有效的消毒剂是用于设备上的苯扎氯铵和收获鱼后用于池塘的鱼藤酮。讨论了已识别化学品的监管状态以及几种非化学品控制替代品。

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