YIC-IR  > 中科院海岸带环境过程与生态修复重点实验室
Alternative TitleTemporal-spatial characteristics of secondary production of macrofauna in Minjiang Estuary
周细平1; 吴培芳1; 李贞1; 吴茜1; 陈逸欣1; 刘康格1; 刘东艳2; 王玉珏3; 王跃启3
Source Publication海洋通报
Keyword闽江口 大型底栖动物 次级生产力 P/B值 时空变化
Abstract为研究福建省闽江口潮间带大型底栖动物次级生产力的时空变化,于2014年11月—2015年8月对闽江口大型底栖动物进行了4个季度的调查研究。在获得3条断面大型底栖动物物种数、密度和生物量的基础上,利用Brey经验公式计算年平均次级生产力(P)。研究结果显示:闽江口4个季度共获得大型底栖动物63种,其中优势类群为多毛类。闽江口潮间带大型底栖动物年均次级生产力为6.13 g(AFDW)·m^-2·a^-1(AFDW,去灰分干重,ash-free dry weight)。在季节分布上,次级生产力最高值出现在夏季,为11.04 g(AFDW)·m^-2·a^-1,最低值出现在冬季,为2.25 g(AFDW)·m^-2·a^-1;在空间分布上,次级生产力最高值出现在P03断面,为10.23 g(AFDW)·m^-2·a^-1,最低值出现在P01断面,为2.54 g(AFDW)·m^-2·a^-1。大型底栖动物年均P/B值(B=Biomass,生物量)为2.31 a-1,最高值出现在春季,为3.17 a-1,最低值出现在夏季,为1.74 a-1;且P02断面的P/B值高于其他2条断面。Pearson相关分析结果表明,次级生产力与温度呈显著正相关,P/B值与盐度呈显著正相关但与pH呈显著负相关。因此,环境因子在一定程度上影响着该区域大型底栖动物的次级生产力。闽江口大型底栖动物群落组成中以个体小、生活史短、繁殖快的小型甲壳类蜾蠃蜚(Corophium sp).为主,使该潮间带区域的P/B值高于其他临近潮间带区域的调查结果。
Other AbstractTo explore the temporal-spatial variation of macrofauna secondary production in Minjiang River Estuary,Fujian,four surveys were carried out from November 2014 to August 2015.Based on the Brey experience formula(1990),the annual average biomass(B)and the annual average individual weight(W)were used to assess annual productivity(P).This study identified 63 macrofauna species,in which polychaetes were the dominant species.The mean P was 6.13 g(AFDW)·m^-2·a^-1 with the highest value of 11.04 g(AFDW)·m^-2·a^-1 in summer and the lowest value of 2.25 g(AFDW)·m^-2·a^-1 in winter.According to spatial distribution,the highest P was 10.23 g(AFDW)·m^-2·a^-1 in section P03 and the lowest value was 2.54 g(AFDW)·m^-2·a^-1 in section P01.The average P/B ratio was 2.31 a-1 with the highest value of 3.17 a-1 in spring and the lowest value of 1.74 a-1 in summer.Meanwhile,the P/B ratio in section P03 was clearly higher than other two sections.Pearson correlation analysis observed a significant positive correlation between P and temperature,P/B ratio and salinity and a significant negative correlation between P/B ratio and pH.Moreover,environmental factors modestly affected P of macrofauna.The short life history and fast reproduction of the dominant species Corophium sp.in Minjiang Estuary may explain the higher P/B ratio than other adjacent intertidal zone.
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周细平,吴培芳,李贞,等. 福建闽江口潮间带大型底栖动物次级生产力时空特征[J]. 海洋通报,2020,39.0(003):342-350.
APA 周细平.,吴培芳.,李贞.,吴茜.,陈逸欣.,...&王跃启.(2020).福建闽江口潮间带大型底栖动物次级生产力时空特征.海洋通报,39.0(003),342-350.
MLA 周细平,et al."福建闽江口潮间带大型底栖动物次级生产力时空特征".海洋通报 39.0.003(2020):342-350.
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