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The competition between Ulva prolifera and Ulva lactuca under different N/P
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Xue Yang1, Kun Lin1, Liju Tan1, Jiangtao Wang1, *
Haiyang Xuebao | 2020, 42(8) : 50 - 58
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Haiyang Xuebao | 2020, 42(8): 50-58
Progress on the development and prevention of Yellow Sea green tide
The competition between Ulva prolifera and Ulva lactuca under different N/P
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Xue Yang1, Kun Lin1, Liju Tan1, Jiangtao Wang1, *
Affiliations
  • 1 Key Laboratory of Marine Chemistry Theory and Technology of Ministry of Education, Ocean University of China, Qingdao 266100, China
Published: 2020-08-25 doi: 10.3969/j.issn.0253-4193.2020.08.006
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In recent years, the eutrophication of seawater has led proliferation of large seaweeds in offshore waters, becoming a worldwide environmental problem. Since 2007, the green tide of Ulva prolifera has continuously broken out in the Yellow Sea, causing huge economic losses. In order to investigate the relation between macroalgae and the ratio of nitrogen to phosphorus (N/P), and the competition mechanism with other macroalgae, we studied the growth of U. prolifera and U. lactuca when pure culture and co-culture. The results showed that: (1) When U. prolifera was pure cultured, the higher or lower N/P can promote the growth of U. prolifera. (2) When U. lactuca was pure cultured, the effect of the N/P on U. lactuca is not obvious. (3) U. prolifera growth was inhibited to some extent under the different N/P conditions when U. prolifera and U. lactuca were co-cultured, and the lowest N/P group was affected the most. (4) The N/P in the Subei Shoal is more suitable for the growth of U. prolifera, which may be one of the main reasons for the large-scale outbreak of U. prolifera green tide.

green tides  /  Ulva prolifera  /  Ulva lactuca  /  nutrients  /  N/P  /  competition
Xue Yang, Kun Lin, Liju Tan, Jiangtao Wang. The competition between Ulva prolifera and Ulva lactuca under different N/P[J]. Haiyang Xuebao, 2020 , 42 (8) : 50 -58 . DOI: 10.3969/j.issn.0253-4193.2020.08.006
Year 2020 volume 42 Issue 8
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doi: 10.3969/j.issn.0253-4193.2020.08.006
  • Receive Date:2019-09-30
  • Online Date:2026-03-26
  • Published:2020-08-25
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  • Received:2019-09-30
  • Revised:2019-12-17
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    1 Key Laboratory of Marine Chemistry Theory and Technology of Ministry of Education, Ocean University of China, Qingdao 266100, China
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表12种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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