Abstract:
:Large seaweed cultivation has proven an effective means to inhibit harmful microalgae at experimental scales and battle eutrophication in Chinese coastal waters, but essentially there is a lack of field-scale studies to explore the underlying mechanism. Here we present a 1.5-year-long time series of particulate organic matter (POM) and settling particulate matter (SPM) concentrations from an integrated aquaculture of Gracilaria lemaneiformis off the coast of Nan'ao Island, South China from April 2014 to August 2015. The microscopic examination and geochemical characteristics show that the POM mainly consisted of microalgae. The mean POM concentration increased 99.8%, 71.2%, 45.8% and 111.9% at the four sampling sites during the non-cultivation period, while decreased 25.5%, 17.3%, 12.2% and 20.3%, respectively, during the seaweed cultivation period. These results suggest that the large scale seaweed cultivation can remove excess nutrients and inhibit microalgal growth, thereby contributing to the improvement of coastal marine aquaculture environment.
journal_name
Mar Pollut Bulljournal_title
Marine pollution bulletinauthors
Zhang A,Wen X,Yan H,He X,Su H,Tang H,Jordan RW,Wang Y,Jiang Sdoi
10.1016/j.marpolbul.2018.05.026subject
Has Abstractpub_date
2018-08-01 00:00:00pages
137-143eissn
0025-326Xissn
1879-3363pii
S0025-326X(18)30333-3journal_volume
133pub_type
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