Distribution and Factors Affecting Biomass of Macroalgae near the Power Plant Intake on the Coast of Bohai Sea, Liaoning Province, China

Jia Chuan, Fujimori Yasuzumi, Guan Chunjiang, Shao Kuishuang, Tian Xinhua, Liu Guize

doi:10.18903/fisheng.60.1_1

Bibliographic Information

Other Title

中国遼寧省渤海沿岸の発電所取水口周辺海域における大型海藻の分布とバイオマスへの影響要因

Abstract

<p>Macroalgae occasionally flows into the water intakes of coastal industrial facilities, causing blockage. Therefore, we conducted a unit acreage sampling and a diving survey for macroalgae near a power plant on the coast of the Bohai Sea to investigate the dominant species and to clarify their temporal and spatial distributions. The dominant species were green algae; Enteromorpha linza, Ulva pertusa, brown algae; Sargassum thunbergia, Punctaria latifolia, and red algae Ceramium kondoi, Gelidium sp.. Green and brown algae accounted for about 80% of the total in the studied area. The Dazuizi (DZZ) area, where gravels and reefs are widely dispersed, was clarified to be the primary macroalgae habitat, with a biomass of 0.7 kg/m² and a total weight of 837.1 t, which was about 20 times of the Jiangshidi (JSD) area. The significant increase in macroalgae began in May when the water temperature reached about 15°C and peaked around June. In July, the water temperature raised above 25°C; the macroalgae began to decline. From the GLM analysis, it was cleared that the biomass of green algae was affected remarkably by the environmental factors relative to the other algae.</p>

Journal

Journal of Fisheries Engineering

Journal of Fisheries Engineering 60 (1), 1-7, 2023-06-15

The Japanese Society of Fisheries Engineering

Keywords

Details 詳細情報について

CRID: 1390296973275930112

DOI: 10.18903/fisheng.60.1_1

ISSN: 21897131; 09167617

Text Lang: ja

Data Source

JaLC

Abstract License Flag: Disallowed

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