中文摘要：

基于2009年在荣成俚岛人工鱼礁区进行的周年生物资源调查数据,构建了俚岛人工鱼礁区生态系统生态通道模型（Ecopath）,系统分析了俚岛人工鱼礁区生态系统的能量流动规律和系统结构特征.该模型由19个功能组构成,基本涵盖了俚岛人工鱼礁区生态系统能量流动的主要过程,根据礁区调查出现的鱼类与鱼礁的对应位置关系划分功能组,并引入浮游异养细菌功能组.结果表明：礁区调查出现的鱼类可划分成7个功能组,系统中各功能组的营养级在1.00～3.72级,其中,礁区I型鱼类处于最高营养级;系统总流量为10786.68t·km-2·a-1,其中,27%流向碎屑,17%以捕捞和沉积的形式流出系统;系统的总初级生产力为4131.97t·km-2·a-1;系统的总能量转换效率为10.5%,流量中来自碎屑的比例为39%,61%直接来源于初级生产者,能流通道以牧食食物链为主导;系统的总初级生产量/总呼吸量为1.84,系统连接指数为0.20,Finn循环指数为4.5%,能流平均路径为2.62.俚岛人工鱼礁区生态系统当前的成熟度和稳定性较低,是一个正处于发育阶段的生态系统,系统抵抗外界干扰的能力较弱,鱼礁区的生态环境和渔业产出在年际间会出现一定波动,人工鱼礁对生态环境的修复作用需要继续养护才能得以实现.

英文摘要：

Based on the annual investigation data of biological resources in Lidao artificial reef zone in 2009,an Ecopath model of the Lidao artificial reef ecosystem was constructed to analyze the energy flow pattern and the system attributes of the ecosystem.The model was consisted of 19 functional groups,basically covering the main processes of the energy flow in the Lidao artificial reef ecosystem.The functional groups were divided according to the relationships of the corresponding positions between appeared fishes and artificial reefs,and the planktonic heterotrophic bacteria were included into the model as a functional group.The fishes appeared in the investigation zone were divided into seven functional groups,and the trophic levels of the functional groups varied from 1.00 to 3.72.The typeⅠfishes had the highest trophic level.The total system throughput was estimated to be 10786.68 t·km-2·a-1,27% of which flowed to detritus,and 17% flowed out the ecosystem in the forms of fishing and sediment.The total net primary productivity of the system was 4131.97 t·km-2·a-1,and the total energy transfer efficiency was 10.5%.The proportion of the total flow originated from detritus was 39%,and that from primary producers was 61%,indicating that the energy flow was dominated by food web rather than detritus.The ratio of total primary productivity to total respiration of the system was 1.84,the connectivity index was 0.20,and the Finn＇s cycling index and the mean path length of the energy flow were 4.5% and 2.62,respectively.This study showed that the Lidao artificial reef ecosystem had a relatively low maturity and stability,was at a developing stage,and had weak resistance against outside interference.The ecological environment and the output of fisheries in the artificial reef zone would have inter-annual fluctuations,and thus,the eco-environment restoration of the artificial reef ecosystem could only be realized by the sustainable maintaining of the ecosystem.