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離岸風機海藻牧場設置之可行性研究

  • 日期:107-02-21
  • 計畫編號:107農科-18.3.3-水-A1
  • 年度:2018
  • 領域:農業資源循環暨農能共構之產業創新
  • 主持人:藍揚麒
  • 研究人員:何珈欣、余淑楓、翁進興、洪一平、吳龍靜

本研究於107年2月28日、4月2日、5月15日、6月5日及10月24日至彰化王功西部離岸 海域進行5航次調查,共計於台電測風塔周邊海域完成6組海藻與牡蠣養殖設施之佈 設、4季之海洋環境與魚類相調查及潛水調查1次。中國半葉馬尾藻之成長調查結果 顯示,其具跨年生長之特性,生長期長達9個月,不適合水下養殖方式。彰化王功潮 間帶海域牡蠣主要成長季節為冬末至夏初期間,其餘時間成長緩慢;離岸牡蠣成長 調查結果顯示,其死亡率相當低,且有明顯增長現象。在魚類相調查方面,第1、 3季底刺網調查無漁獲,第2季遭漁民拖網作業毀壞,第4季僅捕獲1尾長角彷對蝦 ;由於當地海水濁度高、能見度低,難以透過潛水或水下遙控攝影方式進行魚類相 調查。海洋環境調查包括磷酸鹽類、矽酸鹽類、硝酸鹽類、氨鹽類及葉綠素濃度之 調查,結果如內文所示。

研究報告摘要(英)


The study conducted 5 onboard surveys on the offshore waters of Changhua Wanggong in February 28, April 2, May 15, June 5 and October 24, 2007. We completed 6 sets of seaweed and oyster breeding facilities, 4 seasons of marine environment and fish diversity surveys, and 1 time of diving survey in this year. The growthing results of Sargassum hemiphyllum var. chinense showed that it has the characteristics of growing across the years, and the growth period is as long as 9 months, but is not suitable for underwater breeding. The main growth season of oysters in the Changhua Wanggong intertidal zone is from late winter to early summer, and is slow in the other periods. The results of the offshore oyster growth survey show that the mortality rate is quite low and there is a significant increase. In the fish diversity survey, there was no catch in the first and third seasons, and the gill net was destroyed by the fishermen's trawling operation in second season. In the fourth season, only one Parapenaeopsis hardwickii was captured. It is difficult to record the fish diversity by diving or remotely operated vehicle in our study area, due to the high turbidity and low visibility. Marine environmental surveys included concentrations of phosphate, citrate, nitrate, ammonia and chlorophyll a, and the results are shown in this report.