4.7 Article

Ecological responses of autotrophic microplankton to the eutrophication of the coastal upwelling along the Southwest coast of India

期刊

ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
卷 28, 期 9, 页码 11401-11414

出版社

SPRINGER HEIDELBERG
DOI: 10.1007/s11356-020-11354-2

关键词

Plankton; Phytoplankton; Upwelling; Southeastern Arabian Sea

资金

  1. CSIR-National Institute of Oceanography

向作者/读者索取更多资源

Research indicates that the nutrient enrichment of coastal upwelling along the southwest coast of India leads to changes in the morphological characteristics and body size of microautotrophs. During the Southwest Monsoon, these organisms form large colonies to better assimilate nitrate.
The primary ecological effects of the eutrophication of upwelling in the nearshore waters are the triggering and sustenance of phytoplankton (diatom) blooms. Here, we present the changes in the morphological characteristics and body size of microautotrophs associated with the nutrient enrichment of coastal upwelling along the southwest coast of India. The FlowCAM data of microautotrophs representing two time series locations in the coastal environment along the southwest coast of India at 18 weekly/biweekly frequencies showed the following features. The most significant response of the microautotrophs to the eutrophication associated with coastal upwelling during the Southwest Monsoon (June-September) was an increase in their mean bio-volume, either by increasing the individual cell size or by forming large colonies. During the Southwest Monsoon, large colonies of Thalassiosira (similar to 8 cells/colony), Thalassionema (> 16 cells/colony), and Asterionellopsis (> 8 cells/colony) become very abundant. Streptotheca formed large mat-like colonies (av. 192350 +/- 348 mu m(3)/individual), and Fragilariopsis grew as very long ribbons (av. 272997 +/- 5071 mu m(3)/individual). Large-sized Chaetoceros (av. 45715 +/- 1273 mu m(3)/individual) with longer setae were also plentiful during the Southwest Monsoon. All these changes in the morphology and life forms of microautotrophs would help them to rapidly assimilate nitrate under turbulent conditions during the Southwest Monsoon.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.7
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据