温州天河潮间带大型底栖动物的次级生产力  

Secondary productivity of macrobenthos in Tianhe intertidal zone of Wenzhou,Zhejiang Province of East China

作　　者：方平福[1] 章书声[1] 鲍毅新[1] 魏德重[1] 

机构地区：[1]浙江师范大学生态研究所,浙江金华321004

出　　处：《生态学杂志》2013年第1期106-113,共8页Chinese Journal of Ecology

基　　金：浙江省自然科学基金重大项目(ZEO204)资助

摘　　要：2009年7月—2010年5月分4个季度对温州天河潮间带大型底栖动物进行取样调查,利用生物量、能量和Brey的经验公式计算了潮间带大型底栖动物次级生产力。结果表明:整个研究区域大型底栖动物生物量平均值为(7.2264±0.8766)g.m-2,能量平均值为(44360±4373)J.m-2,年平均去灰生物量为(6.51±0.79)g(AFDW).m-2,年平均生产力为(7.71±0.96)g(AFDW).m-2.a-1和年平均P/B值为(1.18±0.07);其中以中潮带的次级生产力最高,高潮带次之,低潮带最低;随着潮间带季节变迁,生物量和能量在高潮带和低潮带上变化规律一致,而中潮带季节变化不一致。分析表明:季节和潮区是影响潮间带大型底栖动物次级生产力时空变异的2个最重要因素;由于这2个因素的单独和交互作用,使得温州天河潮间带大型底栖动物次级生产力变化既有一定的规律,又呈现出变化程度不一致的复杂格局。From July 2009 to May 2010, a seasonal survey was conducted on the macrobenthos in the tidal fiat of Tianhe Town in Wenzhou City, and the secondary productivity of the macrob enthos was calculated, based on the maerobenthic biomass and energy and by using the Brey＇ s empirical formula. The mean biomass, energy, annual ashfree dry mass （AFDM） , annual see 2 ondary productivity, and annual P/B value of the maerobenthos were 7. 2264±0. 8766 g . m-2 , 44360±4373 J . m-2, 6.51±0.79 g （AFDW） 2 , 7.71±0.96 g （AFDW） . m-2 .a1 , and 1.18±0.07, respectively. The maerobenthic secondary productivity was the highest in middle tidal fiat, followed by in high tidal fiat, and the lowest in low tidal fiat. With the seasonal varia tion of tidal flat, the biomass and energy of the macrobenthos had the same variation trend in high and low tidal fiats, but not in middle tidal flat. Season and tidal fiat were the most important fac tors affecting the spatiotemporal variations of the maerobenthic secondary productivity. Because of the individual action and the interaction of these two factors, the macrobenthie secondary produc tivity in the Tianhe tidal flat showed complex patterns.

关 键 词：大型底栖动物 次级生产力 潮间带 

分 类 号：Q958.8[生物学—动物学]