Academic Journal
Mariculture may intensify eutrophication but lower N/P ratios: a case study based on nutrients and dual nitrate isotope measurements in Sansha Bay, southeastern China.
Title: | Mariculture may intensify eutrophication but lower N/P ratios: a case study based on nutrients and dual nitrate isotope measurements in Sansha Bay, southeastern China. |
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Authors: | Dezhi Bu, Qingmei Zhu, Jialin Li, Jiali Huang, Yanpei Zhuang, Wei Yang, Di Qi |
Source: | Frontiers in Marine Science; 2024, p1-11, 11p |
Abstract: | The mariculture industry has grown rapidly worldwide over the past few decades. The industry helps meet growing food demands and may provide an effective means of carbon sequestration; however, it may harm the marine ecological environment, and the extent of its impact depends on the type of mariculture. Here we focus on the impact of mariculture on the nutrient status and eutrophication in Sansha Bay, which is a typical aquaculture harbor in southeastern China that employs a combination of shellfish and seaweed farming. Nutrient concentrations and dual nitrate isotopes were measured in Sansha Bay during the winter of 2021. The average concentrations of nitrate and phosphate were 31.3 ± 10.5 and 2.26 ± 0.84 µM, respectively, indicating that the water was in a eutrophic state. However, the N/P ratios were relatively low (14.3 ± 2.2). Nitrate isotope measurements were 8.8‰-11.9‰ for δ15N-NO |
Subject Terms: | MARICULTURE, MARINE algae culture, PHOSPHORUS cycle (Biogeochemistry), EUTROPHICATION, ISOTOPES, NITRATES |
Geographic Terms: | CHINA |
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ISSN: | 22967745 |
DOI: | 10.3389/fmars.2024.1351657 |
Database: | Complementary Index |
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