スベイショールのピロピア養殖筏から採取したウルヴァプロリフエラの競争優位性と黄海の緑潮への影響

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Mar. Pollut. Bull..2020 Aug;157:111353. S0025-326X(20)30471-9. doi: 10.1016/j.marpolbul.2020.111353.Epub 2020-06-12.

スベイショールのピロピア養殖筏から採取したウルヴァプロリフエラの競争優位性と黄海の緑潮への影響

Competitive advantages of Ulva prolifera from Pyropia aquaculture rafts in Subei Shoal and its implication for the green tide in the Yellow Sea.

Ya Hao
Tongfei Qu
Chen Guan
Xinyu Zhao
Chengzong Hou
Xuexi Tang
Ying Wang

PMID: 32658704 DOI: 10.1016/j.marpolbul.2020.111353.

抄録

The physiological characteristics of Ulva prolifera and Blidingia sp. during two pre-bloom stages (March & May) were compared to evaluate the competitive advantage of U. prolifera on Pyropia aquaculture rafts in Subei Shoal. (1) Compared to Blidingia sp., U. prolifera had a lower growth rate, chlorophyll content, photosynthetic efficiency, and antioxidant capacity in March. (2) In May, various indicators of U. prolifera's physiological function improved significantly, while the antioxidant capacity of Blidingia sp. decreased significantly. Large lipidic globules in U. prolifera cells became scattered small lipidic globules in May, which indicated a decrease in lipid membrane peroxidation. (3) In U. prolifera, the ratio of buoyancy to gravity of per unit volume was 1.73, and the bubbles inside the thalli provided 60% of the total buoyancy. Buoyancy generated by the inflatable structure of U. prolifera allowed this species to float after being separated from the rafts.