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| Main Authors: | , , , , , , , |
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| Format: | Artículo científico |
| Language: | en |
| Published: |
Marine environmental research
2025
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| Subjects: | |
| Online Access: | https://pubmed.ncbi.nlm.nih.gov/40435768/ |
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Table of Contents:
- Cumulative effects of ocean currents and land-based pollution on the abundance and composition of coastal zooplankton. Wang, Liang-Gen Pei, Peng-Bing Aslam, Muhammad Li, Tang-Cheng Ke, Xiao Yan, Xiu-Li Du, Fei-Yan Du, Hong Zooplankton Animals Environmental Monitoring Eutrophication Taiwan Seawater Water Movements Seasons Biomass Coastal waters pose a serious threat of eutrophication due to land-based pollution. The excess nutrients change the planktonic abundance and composition. Ocean currents dominate the exchange and mixing of seawater to play a particularly important role in shaping zooplankton dispersion. However, the mechanism of zooplankton response to the joint action of currents and land-based pollution in coastal waters is rarely reported. The mechanism was analyzed using partial least squares path models (PLS-PMs) and data from Shantou Bay of the southwestern Taiwan Strait with complex currents and excess land-based nutrients input in 2021. 262 species of zooplankton have been identified, with geometric mean values for seasonal biomass and abundance ranging from 23.79 mg m to 51.27 mg m and 28.48 ind m to 95.51 ind m. The seasonal water masses and zooplankton communities were divided into 7 masses and 9 clusters, respectively. Zooplankton abundance and clusters correlate with water masses driven by seasonal variations of currents and runoff. The seasonal patterns of zooplankton dominant species and indicator species directly confirm the currents and runoff changing in seasons. Eutrophication and malnutrition are two additional factors affecting zooplankton communities in the sea. Poor phytoplankton is a key limiting factor in spatial patterns of zooplankton communities during the Northeast Monsoon. Eutrophication threats to the stability of the large zooplankton community. These findings align with the results of PLS-PMs for zooplankton in response to environments, which indicated that zooplankton communities were regulated by currents and land-based pollution inputs altering chemical environments and hydrological conditions.