The expansion of Ulva prolifera O.F. Müller macroalgal blooms in the Yellow Sea, PR China, through asexual reproduction

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Abstract: 

Since 2007, Ulva macroalgal blooms have occurred along the coastal areas of the Yellow Sea, China. These blooms are dominated by fragments of Ulva prolifera in the early stages of development. The objectives of this study were to identify the primary mode of asexual reproduction for U. prolifera and to evaluate the contribution of these thalli fragments to the formation of blooms. Four different growth and reproductive strategies of U. prolifera segments were found including: 1) tubular diameter becoming larger; 2) formation of new branches; 3) release of zoids; and 4) polarized growth. This is the first report showing the development of numerous blade-lets from a single segment, which is remarkably different from previous studies on other Ulva species. The results in the present study provide critical information to understand how this species is able to support its explosive growth during a bloom.

Author(s): 
Yarish, Charles
Author(s): 
Jianheng Zhang
Jang Kyun Kim
Peimin He
Keywords: 
Ulva prolifera
Fragmentation
Polarized growth
Macroalgae blooms
Yellow Sea
Eutrophication
Link / Ref: 
Semantics Scholar
Attachment: 
PDF icon The expansion of Ulva prolifera O.F. Müller macroalgal blooms in the Yellow Sea, PR China, through asexual reproduction.pdf
Article Source: 
Marine Pollution Bulletin 104(2016) 101-106
Category: 
Basic Biology
Ecological Services
Geography