Relationship between petroleum hydrocarbon and plankton in a mesocosm experiment
Relationship between petroleum hydrocarbon and plankton in a mesocosm experiment作者机构：Ocean University of Qingdao Qingdao 266003 China
出 版 物：《Acta Oceanologica Sinica》 (海洋学报（英文版）)
年 卷 期：2001年第20卷第2期
页 面：231-240页
核心收录：
学科分类：08[工学] 0824[工学-船舶与海洋工程]
基 金：the National Natural Science Foundation of China under contract No. 49776302 and49976027 and China- Japan Cooperation Project
主 题：Masochism petroleum hydrocarbon plankton nutrients kinetic model
摘 要：A mesocosm experiment was carried out from May 26 to June 1, 1998 at the location of 30 52 N, 122 36 E, the Changjiang Estuary, in order to measure the influence of petroleum hydrocar- bon to the ecosystem, furthermore, to estimate the environmental capacity. In the experiment, it is found that the petroleum hydrocarbon can, in some degree, enhance the growth of diatom, but inhibit the growth of dinoflagellate. In general, the petroleum hydrocarbon can inhibit the growth of both Phytoplankton and zooplankton, and can the inhibit the growth of total plankton (including phytoplankton and zooplankton) as well. A kinetic model was presented to estimate the uptake/release rate constants of petroleum hydrocarbon by plankton, and thereafter, the uptake and release rate constants (k1, k2), bioconcentration factor (BCF) as well as the petroleum bydrocarbon influenced influenced uptake and release rate constants of nutrients by phytoplankton (kup, krel) were obtained. The results imply that the bioconcentration of petroleum hydrocarbon by plankton is fairly large and petroleum hydrocarbon caused no significant influence on the uptake of N- NO3, but significant influence on that of P -PO4. In addition, the application of kinetic model for the bioconcentration of volatile organic toxic compound by organism suggests that the uptake of petroleum hydrocarbon by plankton was an important process for the environmental capacity of petroleum hydrocarbon.
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