• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Zoological Science >Dramatic Declines in Euphausia pacifica Abundance in the East China Sea: Response to Recent Regional Climate Change
【24h】

Dramatic Declines in Euphausia pacifica Abundance in the East China Sea: Response to Recent Regional Climate Change

机译：东海太平洋金边虾数量的急剧下降：对近期区域气候变化的反应

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

As with other marine ecosystems around the world, water temperature has been anomalously warm in recent years in the East China Sea. We analyzed historical data to explore the effects of climatic change on the abundance and distribution variation of Euphausia pacifica in the East China Sea (the Changjiang River estuary and adjacent areas). In 1959, the highest abundance occurred in the spring and autumn, and this krill species was still abundant in May 1974; however, its abundance was significantly reduced in 2002, markedly in spring. Euphausia pacifica was the numerically dominant euphausiid in the East China Sea in 1959. Its mean abundance was up to 1.91 ind m(-3) and 1.64 ind/m(3) in 1959 and 1974, respectively; however, this figure decreased to 0.36 ind m(-3) in 2002. Since 2003, the abundances have been near zero in the most years. Both inter-annual (between November 1959 and 2002) and inter-monthly (between May and June 1959) comparisons suggest that E. pacifica has had a temperature-driven northward movement in response to rising sea surface temperature, especially the positive anomalies since 1997. However, E. pacifica did not come back to the previous habitat when temperature became relative cold. Hence additional factors affecting the E. pacifica distribution and abundance need to be investigated in the future study.
机译：与世界其他海洋生态系统一样，近年来东海的水温异常高。我们分析了历史数据，以探讨气候变化对东海（长江口及邻近地区）太平洋金边虾的丰度和分布变化的影响。在1959年，最高的丰度发生在春季和秋季，这种磷虾种类在1974年5月仍然很丰富。但是，它的丰度在2002年显着降低，特别是在春季。 1959年东太平洋海藻在数量上占主导地位。1959年和1974年其平均丰度分别高达1.91 ind m（-3）和1.64 ind / m（3）。但是，该数字在2002年降至0.36 ind m（-3）。自2003年以来，大多数年份的丰度一直接近于零。年际（1959年11月至2002年之间）和月度之间（1959年5月至1959年6月）的比较均表明，太平洋大肠埃希菌具有温度驱动的北移，以响应海平面温度的升高，特别是自1997年以来的正异常然而，当温度变得相对寒冷时，太平洋大肠埃希菌并没有回到以前的栖息地。因此，在未来的研究中需要研究影响太平洋大肠埃希菌分布和丰度的其他因素。

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