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相關文獻
- 2005年春夏季臺灣東北部海域湧升冷渦與鯖鰺分布之初步研究
- 臺灣東北部海域浮游性軟體動物之分佈
- 夏季臺灣東北部海域仔稚魚的時空分布特性之研究
- Reproductive Biology of the Yellow Seabream (Dentex Tumifrons) in the Northern Waters off Taiwan
- Species Composition and Distribution of Fish Larvae and Juveniles in the Waters off Northeastern Taiwan in Spring 2005 with Particular Reference to Mackerel and Scad
- 森林中大型哺乳動物的調查與監測
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題 名 | 2005年春夏季臺灣東北部海域湧升冷渦與鯖鰺分布之初步研究=Preliminary Study on the Existence of a Cold Eddy Related to the Distributions of Mackerel and Scad in the Waters off Northeastern Taiwan during Spring and Summer 2005 |
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作 者 | 李嘉林; 王友慈; 吳世宏; 康偉福; 曾振德; | 書刊名 | 水產研究 |
卷 期 | 14:2 民95.12 |
頁 次 | 頁15-25 |
分類號 | 439.2 |
關鍵詞 | 湧升冷渦; 鯖鰺魚群; 豐度指數; 臺灣東北部海域; Upwelling cold eddy; Mackerel and scad school; Abundance index; Waters off northeastern Taiwan; |
語 文 | 中文(Chinese) |
中文摘要 | 2005年3~7月間,利用溫深鹽儀 (CTD) 計測台灣東北部海域 (24.5° N~27.0° N, 121.0° E~123.5° E) 36個測站的水文基礎資料,並配合魚探機同步收錄魚群影像資料,期間共計進行四航次的調查研究。經由各月別水平及垂直的溫鹽分布圖顯示,當黑潮流經臺灣東北部海域時,由於受到東海大陸棚海底陡升之影響,形成地形性湧升冷渦。該冷渦終年持續存在,強度則隨位置與深度而略有不同。經由溫深鹽儀測得海洋表水溫之分布圖,可發現除了3月份的航次,因冷渦沉潛於水深40~60 m處,不易由海水表層觀測到中心位置外,其於各航次均可由表水溫分布狀態辨認其位置。經由本研究調查結果推測,距該冷渦中心10~20浬,水深介於100~200 m處,似乎為鯖鰺魚群出沒之海域。 |
英文摘要 | To determine the characteristics of upwelling, located at 24.5°~27°N and 121°~123.5°E, and its effect on the distribution of mackerel and scad , 138 survey stations from four cruises in March, April, June, and July 2005 were sampled in the waters off northeastern Taiwan. Depth, seawater temperature, and salinity were collected by (CTD). Based on the data analyzed, the upwelling of a cold eddy was found to exist on all four cruises. The strongest cold eddy existed at depth of 40~60 m in the waters off northeastern Taiwan. The best habitat area for mackerel and scad was evaluated at depths of 100~200 m at 16-32 km from the center of the cold eddy position. The location of the cold eddy can be used as a reference when searching for mackerel and scad schools. |
本系統中英文摘要資訊取自各篇刊載內容。