Journal
ECOLOGICAL INDICATORS
Volume 61, Issue -, Pages 258-267Publisher
ELSEVIER
DOI: 10.1016/j.ecolind.2015.09.025
Keywords
Nutrient thresholds; Eutrophication; Phytoplankton community; TITAN; Change point; Lake ecosystems
Categories
Funding
- China Scholarship Council [201406010162]
- National Major Science and Technology Program for Water Pollution Control and Treatment [2012ZX07501002-06]
Ask authors/readers for more resources
Excessive nutrient loads resulted in cascading trophic effects and ecosystem responses. Aims of this study were to determine if the thresholds in nutrient gradient related to phytoplankton community composition could be identified in eutrophic lake, and further to analyze the change of phytoplankton assemblage along the nutrient concentration based on Threshold Indicator Taxa ANalysis (TITAN). The results presented the significant community thresholds estimate for negative taxa declining at 1.650 mg/L TN and 131.5 mu g/L TP, as well as simultaneously increasing for positive taxa at 1.665 mg/L TN and 151.5 mu g/L TP along nutrient enrichment gradient. However, there was unremarkable change point determined for TN:TP ratios in Lake Dianchi. Elevated TN and TP altered the phytoplankton assemblage, even may induce the fade of algal blooms across the threshold in the hypertrophic lake. The findings could provide implications for deeply deciphering abrupt transitions for phytoplankton assemblage and developing nutrient tactics to protect the lake ecosystems. (C) 2015 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available