Increased recruitment of northeast Pacific barnacles during the 1997 El Niño
Increased recruitment of northeast Pacific barnacles during the 1997 El Niño
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1997 年厄尔尼诺现象期间东北太平洋藤壶数量增加
DOI：
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发表时间：
1999
期刊：
影响因子：
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通讯作者：
J. Roughgarden
中科院分区：
文献类型：
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作者：
S. Connolly;J. Roughgarden
在加州附近的沃茨出现厄尔尼诺现象之后，1997年5月至9月间，潮间带藤壶的补充明显高于前一年同期。这种增长是地理上广泛的，跨越五个纬度度，是异常大，相对于以前记录的藤壶招聘的年际差异在该地区。与厄尔尼诺现象有关的陆上运输增加可能造成1997年的大量补充。这一解释与以前在加利福尼亚州中部和北方加州进行的小规模研究的结果一致，并表明与厄尔尼诺现象有关的海洋学输送异常会强烈影响东北太平洋的底栖生物群落。
Recruitment of intertidal barnacles was markedly higher in May–September 1997, just after the apparent onset of El Niño conditions in the waters off California, than over the same period during the previous year. This increase was geographically broad, spanning five degrees of latitude, and was unusually large, relative to interannual differences in barnacle recruitment previously documented for this region. Increased onshore transport associated with El Niño events probably caused high recruitment in 1997. This explanation accords with the findings of previous, smaller scale studies in central and northern California and indicates that oceanographic transport anomalies associated with El Niño can strongly affect benthic communities in the northeast Pacific.