垣網の研究-2-垣網の長さおよび張立て方向
スポンサーリンク
概要
- 論文の詳細を見る
The optimum length and setting direction of the leader of a setnet were discussed. Let l denote the length of leader of a setnet and a the depth of water at the end of the leader, then the values c in c=l/a were oalculated for different kinds of setnet seperately. Distributions of the gradient g on fishing grounds were also determined by the formula g= (a-b)/l, where b is the depth of water at the starting point of the leader, and the relationship between g and c was ascertained. In the case of the yellowtail trap net, the value of setting direction i which is expressed by the inclination of the leader was 0.23 or θ=13° on an average.
- 日本水産學會の論文
著者
関連論文
- 定置網の土俵・錨の固定力と土俵網の破断強度との関係
- 北海道網走沖における早期来遊シロザケの遊泳行動
- 3. 定置綱の機械揚綱
- Experimental study and discussion of Fridman's theory in relation to the behavior of fish school encountered by the leader-net of set-net.
- 北海道東部オホ-ツク海における早期来遊シロザケの遊泳行動〔英文〕
- カラ-セクタ-スキャニングソナ-によるサケ定置網周辺の魚群行動解析
- 垂下した魚礁ブロックの水中での強制振動について
- 知床半島沿岸域における早期来遊シロザケの水平移動
- 底刺網への罹網状態から見たイセエビとサザエの生態について
- 垣網の研究-2-垣網の長さおよび張立て方向
- 垣網の研究-1-網糸の太さと網目の大きさ
- 知床半島沿岸域における早期来遊シロザケの垂直移動
- W字型となるサクラマスの聴覚閾値特性〔英文〕