象山港地处浙江省中部沿海，是一个狭长型半封闭港湾为宁波市重要的增养殖区，港区总面积563.3平方公里，海域面积391.76平方公里，滩涂面积171.53平方公里。港区生态环境良好，生境类型多样，饵料生物丰富，为多种生物提供了良好的繁殖、育幼场所。但是，近年来受到过度捕捞、海洋开发、海洋污染和海水养殖的影响，生态环境趋于恶化，渔业资源日益衰退。通过建设海洋牧场增殖放流适宜的品种来补充野生群体数量，改善和优化水域的食物网结构，从而达到水生生物资源养护和水域生态修复是海洋生物资源养护的重要手段。而基于生态系统理念筛选适宜的增殖放流品种并估算实际放流量是增殖放流首先需要解决的问题。本研究应用氮稳定同位...Xiangshan Bay is a narrow-based and semi-enclosed harbor which located in the central coastal of Zhejiang province. It is an important aquiculture area of Ningbo City. The Bay has a surface area of 563.3 km2, the water surface area is 391.76 km2, and the intertidal area is 171.53 km2. The bay had a good ecological environment, high diversity of habitat types and abundant food organisms which prov...学位：理学硕士院系专业：海洋与地球学院_海洋生物学学号：2242011115139
