塘沽潮间带大型底栖动物营养结构的初步分析

A PRELIMINARY STUDY ON THE TROPHIC STRUCTURE OF MACROBENTHOS IN THE TANGGU LITTORAL ZONE

本文介绍了塘沽潮间带大型底动物的营养结构情况,并在此基础上探讨了生物修复的一些问题。利用Brey等的经验公式计算得到该潮间带的次级生产力为42.02g/m2(去灰干重)。该潮间带主要包括了4个营养级,某些营养级生物种类较少,且生物量差异大,营养结构不合理。文章还对通过合理移植和抑制生物来调整营养结构而使之稳定的问题进行了探讨。

The trophic structure of macrobenthos in Tanggu littoral zone, Tianjin city was investigated in June 2003. The mean value of secondary production in the studied area was 42. 02g/mz （AFDW）. The trophic structure in the investigation zone consisted of 4 trophic levels. There were fewer species of macrobenthos at some trophic levels, and the biomasses of the macrobenthos was very different. The trophic structure of this zone was not reasonable, and on this basis, some advice for bioremediation is also discussed in this paper, such as transplant and the restrainability of macrobenthos.