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您的检索式：作者名="Tony J. Pitcher"
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| 1 | Mass-balance ecosystem model of the East China Sea显示文摘Using the Ecopath mass-balance trophodynamic model,this paper analyzed the trophic levels,flows,food web structure and ecosystem maturity of the East China Sea,and identified ecologically important functional groups in the ecosystem.The model is based on fishery resource surveys of the East China Sea in 2000,studies on diet composition and global databases such as FishBase and the Sea Around Us Project Database.The results showed that trophic levels of the functional groups are between 2.86 and 4.37,with an average of 3.32.Anchocy(Engraulis japonicus),small fishes and benthic crustaceans such as shrimps and crabs are important groups in terms of the trophic structure and flow dynamics in the East China Sea.Energy flows of most groups are between specific trophic levels,except file fish(Thamnaconus spp.),pomfret(Pampus spp.) and cephalopods.Trophic transfer efficiency of levels Ⅱ,Ⅲ,IV and more than V are 11.8%,21.1%,17.4% and 22.1-22.5%,respectively.Effects of fishery-the largest ‘consumer’ of the ecosystemare much stronger than those exerted by biological groups in the system.The model suggests that the current fishery can further reduce the complexity of the ecosystem.Evaluations of the system indices suggest that maturity of the ecosystem is low.The conclusion of this model indicates that it was the overfishing that caused the ecosystem of the East China Sea declined,which should be taken into account as a critical reference for fisheries management in the future. | Jiahua Cheng William W.L. Cheung Tony J. Pitcher | 2009 | Progress in Natural Science:Materials International2009，19，10： | 9 |
| 2 | The sensory basis of fish schools: Relative roles of lateral line and vision显示文摘 | Brian L. Partridge Tony J. Pitcher | 1980 | Journal of Comparative Physiology □ A1980，，4： | 1 |
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