• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>ICES Journal of Marine Science >Biotic and abiotic factors influencing forage fish and pelagic nekton community in the Columbia River plume (USA) throughout the upwel I ing season 1999-2009
【24h】

Biotic and abiotic factors influencing forage fish and pelagic nekton community in the Columbia River plume (USA) throughout the upwel I ing season 1999-2009

机译：在整个1999-2009年整个上流季节，影响哥伦比亚河羽（美国）中的饲草鱼和上浮性nekton群落的生物和非生物因素

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

Large river plumes modify coastal environments and can impact production across multiple trophic levels. From 1999 to 2009, the assemblages of forage fish, predator fish, and other pelagic nekton were monitored in coastal waters associated with the Columbia River plume. Surveys were conducted at night to target vertically migrating species, and community structure evaluated to better understand ecological interactions. Distinct inshore and offshore communities were identified,during spring and summer that were correlated with ocean temperature, salinity, plume volume, and upwelling intensity. Resident euryhaline forage fish species, such as smelts, anchovy, herring, market squid, juvenile salmon, and spiny dogfish, showed a high affinity for inshore habitat and the lower salinity plume during spring. Highly migratory species, such as sardine, piscivorous hake, sharks, and mackerels, were associated with warmer, saltier waters offshore, during strong upwelling periods in summer. Overall, our study of pelagic nekton revealed that temporal dynamics in abundance and community composition were associated with seasonal abiotic phenomenon, but not interannual, large-scale oceanographic processes. Forage fish assemblages differed seasonally and spatially from the assemblages of major piscivorous predators. This finding suggests a potential role of the plume as refuge for forage fish from predation by piscivorous fish in the northern California Current.
机译：大型河羽改变了沿海环境，并可能影响多个营养级别的产量。从1999年到2009年，在与哥伦比亚河羽流相关的沿海水域中，对饲草鱼，捕食鱼和其他中上浮游鱼类的组合进行了监测。夜间进行了调查，以垂直迁移的物种为目标，并对群落结构进行了评估，以更好地了解生态相互作用。在春季和夏季，确定了与海洋温度，盐度，羽流量和上升强度有关的近岸和近海群落。栖息的欧亚草鱼觅食鱼种类，例如熔炼，an鱼，鲱鱼，鱿鱼，幼鲑鱼和多刺的狗鱼，对近海生境具有很高的亲和力，而春季的盐度较低。在夏季强烈上升期间，沙丁鱼，食鱼无须鳕，鲨鱼和鲭鱼等高度迁徙物种与近海较温暖，咸水有关。总体而言，我们对中上层神经元的研究表明，时空动态和群落组成与季节性非生物现象有关，但与年际大规模海洋学过程无关。饲用鱼类的组合在季节和空间上与主要食鱼性捕食者的组合不同。这一发现表明，在加利福尼亚北部洋流中，羽流作为觅食鱼避难所的潜在作用来自食肉鱼的捕食。

著录项

  • 来源
    《ICES Journal of Marine Science》 |2014年第1期|5-18|共14页
  • 作者

    Marisa N. C Litz; Robert L Emmett; Paul J. Bentley; Andrew M. Claibome; Caren Barcelo;

  • 作者单位

    Department of Fisheries and Wildlife, Oregon State University, Hatfield Marine Science Center, 2030 SE Marine Science Dr., Newport, OR 97365, USA;

    NOAA Fisheries, Point Adams Research Station, Northwest Fisheries Science Center, Hammond, OR 97121, USA;

    NOAA Fisheries, Point Adams Research Station, Northwest Fisheries Science Center, Hammond, OR 97121, USA;

    Washington Department of Fish and Wildlife, Natural Resources Building, 1111 Washington St SE, Olympia, WA 98501, USA;

    College of Earth, Ocean, and Atmospheric Sciences, 104 CEOAS Administration Building Corvallis, OR 97331-5503, USA;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    California current; Columbia River plume; community analysis; forage fish; predator fish;

    机译：加州潮流;哥伦比亚河羽;社区分析;饲料鱼捕食者鱼;

相似文献

  • 外文文献
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