摘要
20 0 3年 7月至 2 0 0 3年 12月在连云港海州湾投放了第一批人工鱼礁 ,2 5 0个单体大礁 ,75 0个小礁体 ,30只船礁 ,共计 135 30m3 (空方 )。为了探讨海州湾人工鱼礁投放后鱼礁区的渔业资源养护情况 ,对该海区进行 6个航次的调查 ,投礁前调查 3次 ,投礁后调查 3次。调查结果表明 :人工鱼礁投放后鱼礁区生物多样性指数和丰度均有所增加 ;鱼礁区CPUE比投礁前增加 1倍左右 ,其中鱼类的CPUE增加最多。鱼礁区比对照区相对应时期的CPUE要高许多 ;优势资源种类也有一定的变化。
A total of 13530 m3 of artificial reefs including 250 large reefs,750 small reefs and 30 boat reefs were cast into the Haizhou Gulf of Lianyungang for the first batch from Jul. to Dec. 2003. For studying the effects of fishery resource enhancement in artificial reef area in the Haizhou Gulf, we carried out 6 investigations including 3 investigations before casting reefs and 3 after that. The investigation results showed that the increase of index of variety and abundant were observed affer casting the reefs. The CPUE in reef area was double than that before casting the reefs, in which CPUE of fish increased obviously. The CPUE in reef area was much high than that of the contrast area in the corresponding times, and the dominant species changed slightly after the reefs were cast.
出处
《海洋渔业》
CSCD
2005年第1期38-43,共6页
Marine Fisheries
基金
上海水产大学技 0 3- 43
科04- 111资助项目
