SCSIO OpenIR  > 海洋微食物网高被引文献
Phytoplankton dynamics in the NE subarctic Pacific
Boyd, P; Harrison, PJ
1999
发表期刊DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY
ISSN0967-0645
卷号46期号:11-12页码:2405-2432
摘要Ocean Station Papa (OSP, 50 degrees N 145 degrees W) in the NE subarctic Pacific is characterised as high nitrate low chlorophyll (HNLC). However, little is known about the spatial extent of these HNLC waters or the phytoplankton dynamics on the basin scale. Algal biomass, production and size-structure data are presented from winter, spring and summer between 1992 and 1997 for five stations ranging from coastal to open-ocean conditions. The inshore stations (P04-P16) are characterised by the classical seasonal cycle of spring and late summer blooms (production > 3 g C m(-2) d(-1)), diatoms are not Fe-stressed, and growth rate is probably controlled by macronutrient supply. The fate of the phytoplankton is likely sedimentation by diatom-dominated spring blooms, with a pelagic recycling system predominating at other times. The offshore stations (P20/OSP) display low seasonality in biomass and production (OSP, mean winter production 0.3 g C m(-2) d(-1), mean spring/summer production 0.85 g C m(-2) d(-1)), and are dominated by small algal cells. Low Fe availability prevents the occurrence of diatom blooms observed inshore. The main fate of phytoplankton is probably recycling through the microbial food web, with relatively low sedimentation compared to inshore. However, the supply of macro- and micro-nutrients to the coastal and open ocean, respectively, may vary between years. Variability in macro-nutrient supply to the coastal ocean may result in decreased winter reserve nitrate, summer nitrate limitation, subsequent floristic shifts towards small cells, and reduced primary production. Offshore, higher diatom abundances are occasionally observed, perhaps indicating episodic Fe supply. The two distinct oceanic regimes have different phytoplankton dynamics resulting in different seasonality, community structure and fate of algal carbon. These differences will strongly influence the biogeochemical signatures of the coastal and open-oceanic NE subarctic Pacific. (C) 1999 Elsevier Science Ltd. All rights reserved.
部门归属Univ British Columbia, Sch Earth & Ocean Sci, Vancouver, BC V6T 1Z4, Canada
学科领域Oceanography
URL查看原文
语种英语
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/9320
专题海洋微食物网高被引文献
推荐引用方式
GB/T 7714
Boyd, P,Harrison, PJ. Phytoplankton dynamics in the NE subarctic Pacific[J]. DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY,1999,46(11-12):2405-2432.
APA Boyd, P,&Harrison, PJ.(1999).Phytoplankton dynamics in the NE subarctic Pacific.DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY,46(11-12),2405-2432.
MLA Boyd, P,et al."Phytoplankton dynamics in the NE subarctic Pacific".DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY 46.11-12(1999):2405-2432.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
Phytoplankton dynami(678KB) 开放获取--请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。