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Since 2007, green tides have occurred along the coast of the Yellow Sea, China. The green tide extended to 50,000 km2 (floating area) within 2–3 months and the calculated covering area was about 400 km2 in 2010. These facts implied that the growth and reproduction of the dominant species Ulva prolifera were stimulated. We observed that 1 cm2 blades (single(More)
Green algal blooms have occurred in the Yellow Sea for seven consecutive years from 2007 to 2013. In this study, satellite image analysis and field shipboard observations indicated that the Ulva blooms in 2013 originated in the Rudong coast. The spatial distribution of Ulva microscopic propagules in the Southern Yellow Sea also supported that the blooms(More)
From 2008 to 2016, massive floating green macroalgal blooms occurred annually during the summer months in the Yellow Sea. The original source of these blooms was traced based on the spatio-temporal distribution and species composition of Ulva microscopic propagules and settled Ulva vegetative thalli monthly from December 2012 to May 2013 in the Yellow Sea.(More)
In this study, the influence of temperature and light intensity on the growth of seedlings and adults of four species of green tide algae (Ulvaprolifera, Ulvacompressa, Ulva flexuosa and Ulvalinza) from the Yellow Sea was evaluated. The results indicated that the specific growth rate (SGR) of seedlings was much higher than that of adults for the four(More)
Compositions, changes and biomass of attached Ulva species on Porphyra rafts along the radial sandbank in the Yellow Sea were investigated, and potential contributions to green tides was analyzed. Ulva prolifera, Ulva flexuosa and Ulva linza were all appeared throughout the investigated period. U. prolifera and U. flexuosa dominated attached Ulva population(More)
The hypothesis that nitrogen and phosphorus can have a positive effect on the bloom formation of Ulva prolifera along the southern coast of the Yellow Sea was examined. The nutrient enrichment on the growth and photosynthetic carbon assimilation of U. prolifera were investigated in laboratory. Four nitrogen and phosphorus treatments were established: high(More)
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