The spatial distribution and seasonal succession of planktonic foraminifera in the California Current off Oregon, September 1987 – September 1988
The spatial distribution and seasonal succession of planktonic foraminifera in the California Current off Oregon, September 1987 – September 1988
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1987 年 9 月至 1988 年 9 月俄勒冈州附近加利福尼亚洋流中浮游有孔虫的空间分布和季节演替
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发表时间：
1992
期刊：
影响因子：
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通讯作者：
A. Mix
中科院分区：
文献类型：
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作者：
J. Ortiz;A. Mix
本文介绍了1987年9月至1988年9月在加州海流中进行的多示踪剂沉积物捕集实验的初步结果。三个沉积物捕集器系泊部署在一个样带关闭角布兰科在130，280和650公里的离岸。42°N处加州海流中有孔虫的季节分布反映了每个地点温度和水团的变化。在离岸130和280 km处的冬季有孔虫组合主要由亚北极/过渡种组成：N. pachyderma（右）、N. dutertrei，黑腹隐翅虫G. bulloides、大花牛肝菌G. quinqueloba和G. glutinata. 1988年6月下旬至9月，在距海岸130公里处，G. bulloides、大花牛肝菌G. falconensis、新单胞菌N. Pachyderma（左）和P-D过渡类记录了高通量，显然是对上升流条件的反应。亚热带种O. universa，大隐藻G. ruber和T.在离岸650公里处，humilis最为重要。从1987年9月到1988年9月，布兰科角附近的有孔虫群落似乎比文献中描述的阿拉斯加环流P站（45°N，150°W）的组合更多样化，但生产力较低。
Abstract Preliminary results are presented from the September 1987 to September 1988 deployment of the Multitracers Project, a moored sediment trap experiment in the California Current. Three sediment trap moorings were deployed on a transect off Cape Blanco at 130, 280, and 650 km offshore. The seasonal distribution of foraminifers in the California Current at 42°N reflect variations in the temperatures and water masses present at each site. The winter assemblage of foraminifers at the sites 130 and 280 km offshore comprise mainly the subarctic/transitional species: N. pachyderma (right), N. dutertrei, G. bulloides, G. quinqueloba and G. glutinata. From late June to September 1988 at the site 130 km offshore, G. bulloides, G. falconensis, N. pachyderma (left) and the P-D intergrade category record high fluxes, apparently in response to upwelling conditions. The subtropical species O. universa, G. ruber and T. humilis are most important at the site 650 km offshore. The foraminiferal communities present from September 1987 to September 1988 off Cape Blanco seem to be more diverse but less productive than assemblages from the Alaskan Gyre at Station P (45°N, 150°W) as described in the literature.