长江口湿地资源生物的可持续利用

长江口湿地是我国一块重要的滨海湿地，蕴含了丰富的自然资源，这些自然资源为当地乃至更广领域的经济发展都作出了重要的贡献。本文主要探讨该湿地生态系统中六种具有代表性资源生物的利用现状。这六种资源生物是中华绒螯蟹苗、日本鳗鲡苗、缢蛏、河蚬、芦苇和海三棱草。它们在维持河口生态系统的稳定性和连续性上具有其他许多生物所不可替代的作用。目前由于种种原因，这些资源的持续发展已受到了一定的威胁，造成它们资源现存量下降的主要原因是过度捕捞、受污严重及围垦滩涂等一些因素。如何正确利用和保护这些资源已是一项急待解决的问题，针对这些问题为可持续利用它们提出了一些相应的对策和建议。

SUSTAINABLE UTILIZATION OF BIOLOGICAL RESOURCES ON THE WETLAND IN THE YANGTZE ESTUARY (CHANGJIANG ESTUARY)

The wetland in the Changjiang estuary is among the most important wetlands in China,teeming with natural resources. These resources make great contributions in promoting local and neighbouring regional economic development. The current situation of six typical biological resources,namely, Eriocheir sinensis,Anguilla japonica,Sinonovacula constricta,Corbicula fluminea,Phragmites australis and Scirpus maritimus in the Changjiang estuarine wetland ecosystem is discussed in this paper. These biological resources play unique role in maintaining stability and sustainability of the estuary ecosystem. However, in recent years,for various reasons, their sustainable development is facing challenges.The reasons causing the decrease of their standing crops mainly are overcatching,pollution,tidalflat reclamation and etc.. Some suggestions for the wise use and multi-management of these resources are provided in this paper too.