Applications of stable isotope techniques in the studies of soil collembolan: A review.  Construction and analysis of the EWE model of the wetland ecosystem in lake buffering zone of Zhushan Bay, China. Functional groups of communities and their major species at high trophic level in the Yellow Sea ecosystem Construction of a continuous trophic spectrum for the food web in jiaozhou bay using stable isotope analyses Advance in research on the occurrence and transformation of arsenic in the freshwater lake ecosystem Evaluationon utilization state of marine fishery resources of Pacific Islands based on catch statistics STUDIES ON QUANTITATIVE DISTRIBUTION AND SPECIES COMPOSITION OF PHYTOPLANKTON IN STAR LAKE AND THE EVALUATION OF ITS TROPHIC STATUS