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Open AccessArticle

Seasonal Changes in the Intertidal and Subtidal Algal Communities of Extremely and Moderately Polluted Coastal Regions of Sanya Bay (Hainan Island, China)

1
National Scientific Center of Marine Biology, Far Eastern Branch, Russian Academy of Science, A.V. Zhirmunsky Institute of Marine Biology, Palchevskogo 17, 690041 Vladivostok, Russia
2
Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, Guangzhou 510301, China
3
Tropical Marine Biological Research Station in Hainan, Chinese Academy of Sciences, Sanya 572000, China
4
State Key Laboratory of Marine Resource Utilization in South China Sea, Ocean College, Hainan University, 58th Renmin Road, Haikou 570228, China
*
Author to whom correspondence should be addressed.
J. Mar. Sci. Eng. 2019, 7(4), 93; https://doi.org/10.3390/jmse7040093
Received: 1 March 2019 / Revised: 22 March 2019 / Accepted: 26 March 2019 / Published: 3 April 2019
(This article belongs to the Section Marine Biology)
At the end of the rainy season in 2016 and at the end of the dry season in 2017, we conducted a floristic study of marine macrophytic algae in the intertidal and subtidal zones in moderately and heavily polluted areas at Luhuitou reef, Sanya Bay, Hainan Island, China. A total of 109 species of marine macrophytes were found during these samplings. At the end of the rainy season, 72 species of macrophytes (50% reds, 19% browns, and 31% greens) were found. At the end of the dry season, we found and identified 92 species of macrophytes (46% reds, 20% browns, and 34% greens). Seasonal changes in species diversity, species composition, and the structure of algal communities at differently polluted sites exhibited common features as well as specific characteristics. By the end of the dry season, the diversity of macroalgal species was increased, and the composition of dominant and accompanying species of macrophytes in polydominant communities was changed in moderately and heavily polluted areas. Seasonal changes in the marine flora of differently polluted areas were characterized by specific features as follows: Less changes in species diversity of heavily polluted area compared with moderately polluted area during the change from the rainy season to the dry season; significant increase in the biomass of green algae and their projective coverage in the middle and low intertidal zones of heavily polluted sites in the dry season; and the increase in the numbers of mono- and bidominant communities in the middle and low intertidal zones of heavily polluted sites by the end of the dry season. View Full-Text
Keywords: Hainan Island; intertidal; macrophytic algae; seasonality; nutrients Hainan Island; intertidal; macrophytic algae; seasonality; nutrients
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MDPI and ACS Style

Titlyanov, E.A.; Titlyanova, T.V.; Huang, H.; Scriptsova, A.V.; Xu, H.; Li, X. Seasonal Changes in the Intertidal and Subtidal Algal Communities of Extremely and Moderately Polluted Coastal Regions of Sanya Bay (Hainan Island, China). J. Mar. Sci. Eng. 2019, 7, 93.

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