哑铃湾网箱养殖水体中N、P的形态特征及其季节变化调控机制

Research on characteristic of N,P in cage culture in Yaling Bay with seasonal variation and adjusting mechanism

2002年4月～2003年1月四个季度,对哑铃湾典型网箱养殖区N、P几种形态含量进行了实地调查和分析。结果表明,在该养殖区,N、P的存在形态都以溶解态为主,各种形态的季节变化都受网箱养殖活动和浮游植物的生长状况综合调控;在该海域,从N/P值的角度来看,P是比较缺乏的,但是从浮游植物可利用的角度来看,无机磷却相对过剩。

Based on the survey and analysis of several forms of N and P in cage culture section from April of 2002 to January of 2003 4 quarters, the result showed that the form of N, P of the dominant dissolved state and season variation is regulated by the cage culture activity and phytoplankton development status. As view from the proportion of N to P, P is scarce relatively. As view from the availability of phytoplankton, inorganic nitrogen is superfluous relatively.