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As a commercially important kelp, Undaria pinnatifida has been farmed in northern China for more than 30 years. Farming of U. pinnatifida has been restrained historically by the lack of cultivars ever since the very beginning of its cultivation. The cultivation industry to a large extent relies on introducing seedlings or parental plants from other East(More)
Previous study elicited three morphologically distinct forms of Undaria pinnatifida in Peter the Great Bay (Sea of Japan), which were represented by one or more populations. It was supposed that their specific morphology is plastic response to the local environment. In the present study, we used molecular data in order to examine directly the degree of(More)
When cultivating the kelp, Saccharina japonica, in China, one of the causes leading to degeneration in blade quality and productivity has been thought to be inbreeding caused by the use of limited numbers of sorus-bearing individuals that are continuously used over generations to produce large numbers of offspring. One of the effective solutions is to use(More)
In 2008, Qingdao (36 degrees 06'N, 120 degrees 25'E, PR China) experienced the world largest drifting macroalgal bloom composed of the filamentous macroalga Ulva prolifera. No convincing biologic evidence regarding the algal source is available so far. A series of field collections of both Ulva sp. and waters in various sites along Jiangsu coasts were(More)
Undaria pinnatifida has received increasingly more attention worldwide in recent years because, on one hand, it is of high economic importance in East Asian countries and, on the other hand, it is listed as an invasive species in many other countries. Unfortunately, fundamental research has been hindered by the lack of available genomic information on this(More)
The giant kelp farming industry in China, with an annual production of 1.4 million t (dry weight, DW) in a farming area of 130,564 ha, depends on a safe and constant supply of sporelings each year that are nurtured in ca. 20 commercial hatchery enterprises in Shandong and Fujian provinces in the north and south, respectively. Extension of the kelp growing(More)
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