کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4539435 1326598 2015 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Comparative study of the germination of Ulva prolifera gametes on various substrates
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات زمین شناسی
پیش نمایش صفحه اول مقاله
Comparative study of the germination of Ulva prolifera gametes on various substrates
چکیده انگلیسی


• We conducted a comparative study to confirm the source of green tides in the YS.
• Porphyra yezoensis aquaculture rafts serve as the “seed” of the green tides.
• Rubbers related materials could be used as potential “anti-fouling” substances.
• Gametes can complete their germination on algal fronds of Ulva prolifera.

Since 2007, massive green tides have occurred every summer in the southern Yellow Sea (YS), China. They have caused severe ecological consequences and huge economic losses. Ulva prolifera originated from Subei Shoal of the YS was confirmed as causative species of the green tides. The Porphyra yezoensis aquaculture rafts in the Subei Shoal have been highly suspected to be the “seed bed” of the green tides, because U. prolifera abundantly fouled the Porphyra yezoensis aquaculture facilities. Besides, various habitats of aquaculture ponds along the Jiangsu coastline and mudflat in the Subei Shoal were proposed to be possible sources of green tides. To understand the “seed” of the green tides in the southern YS and mitigate the original biomass of the green tide, various materials used as substrates for the germination of U. prolifera gametes were tested in this study. Culture experiments showed the following: 1) materials used in the P. yezoensis rafts (plastic, bamboo, jute rope, plastic rope, nylon netting, and plastic netting) displayed a significantly higher germination rate than those associated with mudflats and aquaculture ponds (mud, sand and rock); 2) plastics were the best substrates for the germination of U. prolifera gametes; 3) poor germination was found on old fronds of U. prolifera,, and rubber showed inhibitory effect on germination. The success in germination on P. yezoensis rafts related materials supports the notion that these mariculture structures may be involved in acting as a seed bed for green tide macroalgae. The lack of germination on rubber surfaces may suggest one way to limit the proliferation of early stages of U. prolifera.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Estuarine, Coastal and Shelf Science - Volume 163, Part A, 20 September 2015, Pages 89–95
نویسندگان
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