宁波港附着生物生态的初步研究

A PRLEIMINARY SURVEY ON THE FOULING ORGANISMS IN THE NINGBO HARBOUR, CHINA

摘要: 附着生物广泛分布在海洋、港湾、河口从及江河湖泊和水库中的船底、管道和水中一切设施的表面上.国内外对海洋附着生物的生态已做了不少的调查研究工作^[3-7],对淡水附着生物生态研究的报导还不多^[2].进行淡水或咸淡水的附着生态研究,对于比较研究海洋附着生物是很有意义的;我国有许多河港,所以更必须调查研究这些港湾的附着生物.自1974年3月至1975年2月,在宁波白沙浮码头分表、底两层挂板.这里离海不远,水位和水质都受到涨落潮水的影响.退潮时基本上是余姚和奉化两河流来的淡水,几乎测不出含氯量有显著增加,常年全年大潮含氯量0.10-11.57g/Kg,小潮0.03-0.55g/Kg.水色混浊,呈土黄色,透明度经常在0.1米以下.

Abstract: During the period from March 1974 to Febrary.1975,a surrey of marine fouling organisms was conducted in Ningbo Harbour, Zhejiang Province, China.The results of investigation show that the fouling organisms are the species of fresh-water or draw near the mouth of estuary with brackish water which reflects the nature of estuarine harbour in the Ningbo Harbour. The number of sqecies of the fouling organisms identified 20,of which the Cordytophora lacustris, Limnopera fortunei and Corophium spare dominant species of the fouling community.The monthly biomass of animall fluctuates from 0-670.3g/M², being highest in June-October, the algae from 0-45.0 g/M².