论文部分内容阅读
对荣成市桑沟湾崖头养殖场扇贝养殖笼上附着生物的种类组成、消长规律、附着生物量的季节变化以及附着生物对扇贝生长存活的影响方面进行了调查研究。结果表明:扇贝养殖笼上附着生物的种类主要有海鞘(玻璃海鞘、柄海鞘、史氏菊海鞘、紫拟菊海鞘)、水螅(主要是鲍枝螅)、多管藻、海绵等;8月份附着生物总生物量达到最高峰,9月份开始逐渐下降;倒笼次数对栉孔扇贝的生长有较大影响:在实验养殖期中,每月倒笼1次组的体重增长最快,但死亡率最高;综合个体、体重增长以及死亡率来看,以每2个月倒换网笼1次、高温季节不倒笼为最佳。
The species composition, growth and decline pattern, the seasonal variation of attached biomass and the influence of attached organisms on the growth and survival of scallop were studied on the cage culture of scallop in Sanggou Bay Cliff Dairy Farm, Rongcheng. The results showed that the main species of scallop culture cage were ascidians (sea turtle, sea turtle, sea turtle, purple chrysanthemum seaweed), sea slugs (mainlyBamboo), multi-tube algae, sponges, etc .; August The total biomass of adhering organisms reached its peak, and began to decline gradually in September. The number of inverted cage had a significant impact on the growth of scallop. In the experimental period, the weight of the cage was the fastest, but the death rate The highest; comprehensive individual, weight gain and mortality point of view, every 2 months to change the cage once a day, the cage is not the best in the hot season.