The Fishery In Jiaodong Peninsula From1840to1949: Its Habitat, Resources And Anthropic Mechanism

The marine environment decides the "Habitat" boundaries of different species--Its determinants are not constant but often very complicate, which makes the species waving up and down.The hilly topography, the discontinuity of arable land and the half sandy soil are all questions for agriculture. The distance between the agriculture income and the actual needs relies on the traditional fishing worked by family members to repair. The intersection of complex environment is where some fish live in. These fishes were either eaten by the local people or exported as the peninsula’s main products. During1840and1949, the Jiaodong residents worked with trawl net,bag net and some other mode to capture fishes. If multiple types of net were compressed in the same area, the effct of a single net and other nets can not be separated. The impact of fishing on the potential" quantity" of the marine environment is not as deep as their effects of species’ screening process, but now it can be observed that with current fishery becomes more and more efficient, the number of species are more significantly depends on fishing factors instead of the marine environmental condition.As the situation becomes worse, we must rethink the feedback of fishing-befire the19th Century triditional fishing was so inefficient that most of the species could keep the maximum capacity. However,since the19th Century,some fishing records reflected the fish became shorter so that their profit reduced. Improper fishing ultimately affected the needs of contemporary people.