烟台四十里湾叶绿素a和初级生产力的分布特征  

Distribution of chlorophyll-a and primary productivity in Yantai Sishili Bay

作　　者：李斌[1] 谷伟丽[1] 靳洋[1] 马元庆[1] 白艳艳[1] 孙珊[1] 王文杰[1] 刘小静[1] 

机构地区：[1]山东省海洋生态修复重点实验室山东省海洋水产研究所,烟台264006

出　　处：《渔业科学进展》2012年第2期19-23,共5页Progress in Fishery Sciences

基　　金：海洋公益性行业科研专项(200805031);国家海洋局近岸海域生态环境重点实验室基金(200807);国家科技支撑计划(2009BADB7B02)共同资助

摘　　要：2006～2010年5、8、10月,分别对烟台四十里湾近岸水域进行了30航次的综合调查,调查内容包括海水水质、浮游植物、叶绿素以及水文气象等要素。四十里湾近岸水域表层叶绿素a和初级生产力的季节与年际变化结果显示,浮游植物数量、叶绿素a含量和初级生产力一般在8月出现高值;仅2008年浮游植物数量最高值出现在10月,2009年叶绿素a含量和初级生产力最高值出现在5月。2008年10月浮游植物数量平均值为所有航次中最高,达到51.61×104cells/L,且各站位间差别显著(P<0.01);2007年10月最低,仅为0.02×104cells/L。2006～2009年,表层叶绿素a含量和初级生产力均值呈逐年增加趋势,2009年分别达到8.72μg/L和1481.42mg/m3·d;2010年(叶绿素a:6.13μg/L;初级生产力:733.91mg/m3·d)又降至与2008年相当。近5年,四十里湾浮游植物数量、叶绿素a含量和初级生产力均呈现湾东部高于西部的趋势,初级生产力与表层叶绿素a含量呈强正相关关系(R=0.921,P<0.01),并得出二者的回归方程式,这为海洋初级生产力的估算与评价提供了一种更简便的方法。In May, August and October 2006～2010, thirty integrated surveys of coastal water environment were carried out in Yantai Sishili Bay （YSB） twice per month. Mornitored items included water quality, phytoplankton, surface chlorophyll-a and hydrometeorology. The spacial and temporal distribution of chlorophyll-a and primary productivity in YSB was studied. The results showed that phytoplankton density, chlorophyll-a concentration and primary productivity were generally higher in August; But in 2008,the maximum of phytoplankton density appeared in October, and in 2009 the maximums of both chlorophyll-a concentration and primary productivity appeared in May. In October 2008, the phytoplankton density, the highest during the survey period, reached 51.61×104 cells/L, and significant differences were found among all six sampling sites（P0.01）; The lowest value （0.02×104 cells/L） appeared in October 2007. From 2006 to 2009 both chlorophyll-a concentration and primary productivity showed a growing trend, but in 2010 they decreased to a similar level as 2008. In the last five years,phytoplankton density, chlorophyll-a concentration and primary productivity were generally higher in east YSB than in the west. Furthermore, a significant positive correlation was found between primary productivity and chlorophyll-a concentration （R=0.921,P0.01）, and a regression equation was developed. It will offer an option to estimate and assess the primary productivity of the coastal waters.

关 键 词：四十里湾 浮游植物数量 叶绿素-A 初级生产力 相关性 

分 类 号：S931.2[农业科学—渔业资源]