几种不同类型人工鱼礁的稳定性和集鱼效果比较

Comparison of stability and fish collection effects ofseveral different types of artificial reefs

根据唐山祥云湾海洋牧场海域具体特点,设计并投放了钢筋混凝土构件礁(A 1、A 2、A 3、A 4)、岩石礁(B 1、B 2)和船礁(C 1)等三种不同性质的鱼礁。通过对鱼礁抗滑移、抗倾覆参数及集鱼效果进行比较,筛选出适宜的人工鱼礁礁型。结果显示:上述几种礁体抗倾覆系数、抗滑移系数均大于1,保证了礁体在海水中的稳定性。几种礁体对渔获量的影响差别较小,从集鱼效果上看,最好的是A 2型的钢筋混凝土构件礁。

According to the specific characteristics of Tangshan Xiangyun Bay Marine Ranch,three types of fish reefs with different properties were designed and put into use:reinforced concrete reef(A 1,A 2,A 3,A 4),rock reef(B 1,B 2)and ship reef(C 1)reef.By comparing the anti-sliding and anti-overturning parameters of the reef and the effect of fish collection,a suitable artificial reef type was selected.The results show that the anti-overturning coefficients and anti-slip coefficients of the above-mentioned reefs are all greater than 1,which ensures the stability of the reefs in seawater.Several types of reefs have relatively small differences in the impact of catches.From the aspect of fish collection effects,the best is the A 2 type reinforced concrete reef.