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中国农学通报

中国农学通报 ›› 2009, Vol. 25 ›› Issue (17): 296-301.

• 水产 渔业 • 上一篇    下一篇

胶州湾典型站位小型底栖生物丰度和生物量的季节变化研究

张艳   

  • 收稿日期:2009-03-20 修回日期:2009-04-17 出版日期:2009-09-05 发布日期:2009-09-05

A Study on Seasonal Variation of Abundance and Biomass of Meiofauna at the Typical Station in Jiaozhou Bay

Zhang Yan   

  • Received:2009-03-20 Revised:2009-04-17 Online:2009-09-05 Published:2009-09-05

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625

摘要：

2003年-2004年对胶州湾B2站小型底栖生物进行了7个航次的调查，结果表明B2站小型底栖生物的平均丰度是1889±609 ind.10cm-2，其中5月丰度值最高，为2721.5±776.7 ind.10cm-2，最低值出现在2003年9月，其丰度为1094.2 ±497.4 ind.10cm-2；平均生物量和生产量分别为1292.3±534.4μg dwt?10cm-2和11630.4±4809.5μg dwt?10cm-2?a-1。One-Way ANOVA分析表明，B2站小型底栖动物丰度和生物量存在显著的季节变化。共鉴定出17个小型底栖动物类群，其中线虫占绝对优势，其平均丰度是1801.82 ind.10cm-2，占小型底栖动物总丰度的95.4%。小型底栖生物数量与环境因子的相关分析表明，影响小型底栖生物数量发生季节变化的主要因子0-2cm表层Chl-a含量。

关键词: 肥料运筹, 肥料运筹, 夏玉米, 生产效应, 控释肥

Abstract:

The abundance and biomass of meiofauna were studied at B2 station in Jiaozhou Bay from 2003 to 2004. The result showed that the average abundance, biomass and production of meiofauna at B2 station in Jiaozhou Bay was 1889±609 ind.10cm-2, 1292.3±534.4 μg dwt?10cm-2 and 11630.4±4809.5 μg dwt?10cm-2?a-1 from 2003 to 2004, respectively. Significant seasonal changes of meiofauna abundance and biomass were observed. A total of 17 groups of meiofauna. Free living marine nematodes were the most dominant group. The average abundance of nematodes was 1801.82 ind.10cm-2, accounting for 95.4% of the abundance of meiofauna, with benthic harpacticoid copepods in the second, accounting for 2.2%. Correlation analysis showed that 0-2cm Chl-a content was the most important factor which affected the seasonal change of meiofauna abundance and biomass.