日本語フィールド
著者：鹿熊信一郎・甲斐哲也・白樫美来・照屋清之介 読み: カクマシンイチロウ・カイテツヤ・シラカシミク・テルヤシンノスケ題名：OTEC排水高度利用のためのスジアオノリ養殖技術開発発表情報：『海洋エネルギー研究センター報告 「OTEC」』 号: 26号 ページ: 35-42キーワード：OTEC discharge, Nutrient rich, Seaweed acuaculture, Ulva prolifera, Seedling production, Growth rate概要：抄録：OTEC discharges nutrient rich deep seawater. The rich nutrient is beneficial for seaweed aquaculture but has negative impacts to coral reefs. Since culturing expensive, fast grow seaweed is efficient and effective way to retrieve nutrient from OTEC discharge, we have studied the technology to culture green algae Ulva prolifera at Okinawa Deep Seawater Research Center. For the seedling production technology, we improved the existing techniques to accelerate the maturation of algae. We developed the Water-bath System in which beakers containing fragmented algae are cooled using deep seawater in an outdoor environment with high UV light. As a result, we were able to obtain a large number of zoospores. For efficient aquaculture technology, we conducted cultivation experiments under different conditions using four sets of tanks of 30L, 500L and 2 tons. The growth rate of U. prolifera was intensively influenced by water temperature, light intensity, maturation and density. We found that if these conditions were appropriate, the speed of growth of the algae could be extremely fast, exceeding 100% daily growth rate.英語フィールド
Author：Shinichiro KAKUMA, Tetsuya KAI, Miku SHIRAKASHI and Shinnosuke TERUYATitle：Developing Ulva prolifera aquaculture technology for utilization of OTEC dischargesAnnouncement information: Issue: 26号 Page: 35-42Keyword：OTEC discharge, Nutrient rich, Seaweed acuaculture, Ulva prolifera, Seedling production, Growth rateAn abstract：OTEC discharges nutrient rich deep seawater. The rich nutrient is beneficial for seaweed aquaculture but has negative impacts to coral reefs. Since culturing expensive, fast grow seaweed is efficient and effective way to retrieve nutrient from OTEC discharge, we have studied the technology to culture green algae Ulva prolifera at Okinawa Deep Seawater Research Center. For the seedling production technology, we improved the existing techniques to accelerate the maturation of algae. We developed the Water-bath System in which beakers containing fragmented algae are cooled using deep seawater in an outdoor environment with high UV light. As a result, we were able to obtain a large number of zoospores. For efficient aquaculture technology, we conducted cultivation experiments under different conditions using four sets of tanks of 30L, 500L and 2 tons. The growth rate of U. prolifera was intensively influenced by water temperature, light intensity, maturation and density. We found that if these conditions were appropriate, the speed of growth of the algae could be extremely fast, exceeding 100% daily growth rate.