农学 >>> 水产学 >>> 水产学基础学科 水产增殖学 水产养殖学 水产饲料学 水产保护学 捕捞学 水产品藏与加工 水产工程学 水产资源学 水产经济学 水产学其他学科
搜索结果: 1-4 共查到水产学 COD相关记录4条 . 查询时间(0.189 秒)
For centuries, cod were the backbone of New England's fisheries and a key species in the Gulf of Maine ecosystem.Today, cod stocks are on the verge of collapse, hovering at 3-4 percent of sustainable ...
For centuries, cod were the backbone of New England’s fisheries and a key species in the Gulf of Maine ecosystem. Today, cod stocks are on the verge of collapse, hovering at 3-4% of sustainable levels...
Georges Bank Atlantic cod (Gadus morhua) and haddock (Melanogrammus aeglefinus) stocks have undergone significant changes over the last 40 years with the reduction of older spawners and increased in...
The Northeast Arctic cod (Gadus morhua), is well known for extensive upstream migrations from its feeding grounds in the Barents Sea to various spawning banks along the Norwegian coast. Prior to the...

中国研究生教育排行榜-

正在加载...

中国学术期刊排行榜-

正在加载...

世界大学科研机构排行榜-

正在加载...

中国大学排行榜-

正在加载...

人 物-

正在加载...

课 件-

正在加载...

视听资料-

正在加载...

研招资料 -

正在加载...

知识要闻-

正在加载...

国际动态-

正在加载...

会议中心-

正在加载...

学术指南-

正在加载...

学术站点-

正在加载...