搜索结果: 1-3 共查到“水产学 protection”相关记录3条 . 查询时间(0.098 秒)
Perspectives for Fish Protection in Japanese Paddy Field Irrigation Systems
biological diversity aqua-ecosystem agricultural water channel
2009/9/10
In recent years there has been an increasing activity related to the preservation of living organisms (biological diversity) worldwide. It is obvious that the long-term trends contributing to this mov...
2007-04-23，The 300 beluga whales which live in the heavily used waters off the coast of Anchorage in Alaska have finally been given protection under United States federal law. The National Marine Fish...
Florida Fish and Wildlife Conservation Commission has notreduce gator protection
alligators game animals
2006/11/6
October 31, 2006,A communications breakdown Tuesday sparked a flurry of news stories that require immediate clarification.The Florida Fish and Wildlife Conservation Commission (FWC) has completed a su...