海洋科学Issue(3)：58-62,5.
不同内倾角海螺笼对脉红螺的诱捕效果
The trapping effectiveness of Rapana venosa by cages with different leaning angles
摘要
Abstract
The trapping effectiveness of Rapana venosa by cages with different leaning angles was studied in this paper. The trapping effectiveness of four kinds of cages with different leaning angle (35 °, 45 °, 55 ° and 65 °) in the laboratory sink was observed. And we also investigated the influence of light and temperature on the cage trapping of R. venosas. These would provide theory basis for optimization of the cage fishing technology of conch. The re-sults showed that the influence of different leaning angles on the effect of cage trapping is very significant (P<0.01). The cage with a leaning angle of 45° has the best effect of trapping, followed by cages with leaning angles of 35° and 55°. The cage with a leaning angle of 65° has the worst effect of trapping. We also found that cages with dif-ferent leaning angles exhibited selectivity towards different sizes of R. venos. With the increase of leaning angle, the percentage of R. venos with shell height less than 7 cm decreased The influence of light on the trapping effect is very significance, while the influence of temperature is weak.关键词
海螺笼/脉红螺( Rapana venosa)/内倾角/光照/选择性Key words
the conch cage/Rapana venosas/leaning angle/light/selectivity分类
农业科技引用本文复制引用
唐衍力,盛化香,齐广瑞,何宇虹,李世通..不同内倾角海螺笼对脉红螺的诱捕效果[J].海洋科学,2013,(3):58-62,5.基金项目
公益性行业(农业)科研专项(201203018) （农业）
