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Trace metal concentrations in the Ross Sea and their relationship with nutrients and phytoplankton growth

被引：169
作者：
Fitzwater, SE
Johnson, KS
Gordon, RM
Coale, KH
Smith, WO
机构：
[1] Moss Landing Marine Labs, Moss Landing, CA 95039 USA
[2] Virginia Inst Marine Sci, Gloucester Point, VA 23062 USA
来源：
DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY | 2000年 / 47卷 / 15-16期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1016/S0967-0645(00)00063-1
中图分类号：
P7 [海洋学];
学科分类号：
0707 ;
摘要：
Dissolved and particulate trace metal concentrations (dissolved Fe, Zn, Cd, Co, Cu and Ni; particulate Fe, Mn and Al) were measured along two transects in the Ross Sea during austral summer of 1990. Total Fe concentrations in southern Ross Sea and inshore waters were elevated > 3.5 times that of northern waters. Dissolved Zn, Cd and Co concentrations were lower by factors of 4.5, 3.5 and 1.6 in southern surface waters relative to northern waters, Dissolved Cu and Ni concentrations were similar in both areas. Elevated Fe concentrations coincided with areas of increased productivity, phytoplankton biomass and nutrient drawdown, indicating that Fe is an important factor controlling the location of phytoplankton blooms in the Ross Sea. Particulate concentrations of Fe, Mn and Al indicate two possible sources of iron to the Ross Sea? resuspension of continental shelf sediments and iron incorporated in annual sea ice and released with meltwaters. (C) 2000 Elsevier Science Ltd. All rights reserved.
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页码：3159 / 3179
页数：21
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