trawl net

The Application of dBASE ⅲ to the Data Base of Trawl Net

dBASEⅢ在拖网数据库中的应用

Any trawl net including trawl, pair trawl or shrimp trawl net.

任何拖网,包括单拖网 、 双拖网或虾拖网.

Effects of fluorescent trawl net on fish catches in periodic darkness

光暗周期下底拖萤光网作业对鱼类的捕捞效应

Trawl net, purse seine, Fish Pond Nets, set net, light net, drag net, golf net, used for catching and breeding in deep sea, Shallow sea, Inland river, Inland Lake and used for sport net.

可制作拖网、围网、网箱、定置网、灯光网、拉网、高尔夫球网等等，适用于深海、浅海、内河、内湖的养殖和捕捕捞以及体育用网。

Totally 20 individuals of small cetaceans were incidentally captured from Dongshan Ports during our study. Among them 6 ( 30%) were bottlenose dolphins, and they were captured by trawl net ( 2 individuals) and purse net ( 4 individuals).

调查期间从东山港记录到的误捕致死的20头小型鲸类中，6头（占30%）为瓶鼻海豚，分别由拖网和围网捕获。

The experimental results show that the net structure is reasonable and trawl performance is fine.

结果表明，该网的结构合理，网具性能优良。

Study on Structure and Fishing Method of Selective Shrimp Trawl Net

选择性虾拖网渔具渔法研究

Friction and hydrodynamic properties of the ground rope of trawl net

沉子纲的摩擦阻力和水动力特性