音響カメラを用いた大型クラゲ類(エチゼンクラゲ,ビゼンクラゲ,ミズクラゲ)の分布および傘径計測手法
書誌事項
- タイトル別名
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- Research Methods for Distribution and Size Measuring of Large Jellyfishes (Nemopilema Nomurai, Rhopilema Esculentum and Aurelia Aurita s.l.) by Using Acoustic Camera
- オンキョウ カメラ オ モチイタ オオガタ クラゲルイ(エチゼンクラゲ,ビゼンクラゲ,ミズクラゲ)ノ ブンプ オヨビ カサケイ ケイソク シュホウ
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説明
In order to observe three species of large jellyfishes Nemopilema nomurai, Rhopilema esculentum and Aurelia aurita s.l. which live in the sea around the Japan, the acoustic camera DIDSON was applied. Effective observation methods using acoustic camera for each species were discussed. Acoustic frequency of 1.1 MHz, 20 m-visibility and vertically downward observation was effective setting for N. nomurai that was distributed in the deep offshore water. Acoustic frequency of 1.8 MHz, 10 m-visibility and vertically downward observation from the sea surface was effective setting for R. esculentum that was distributed in the shallow coastal water. Acoustic frequency of 1.8 MHz, 5 m-visibility and horizontal observation was effective setting for Aurelia that was distributed in the coastal water. Experimental surveys using above settings were carried out by research ships and fishing boat. Individuals of each jellyfish could be visualized clearly on the pictures of the acoustic camera, and data of population density, bell size and swimming direction of each jellyfish were acquired.
収録刊行物
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- 日本水産工学会誌
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日本水産工学会誌 53 (2), 87-97, 2016
日本水産工学会
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詳細情報 詳細情報について
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- CRID
- 1390001205863767680
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- NII論文ID
- 130006112658
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- NII書誌ID
- AN10278554
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- ISSN
- 21897131
- 09167617
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- NDL書誌ID
- 027786395
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- IRDB
- NDL
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可