摘要
本文据1987～1989年实地调查资料,研究了大亚湾红树林区底栖生物的种类组成与数量分布。结果表明,分布于湾顶5种红树林内的底栖生物70种,主要由多毛类(23种)、软体动物(23种)、甲壳动物(12种)和星虫动物(8种)组成;平均生物量219.77g/m^2,平均栖息密度281个/m^2;在数量上以软体动物的腹足类占优势。文中应用群落结构指数进行分析,并与九龙江口的作了比较。
Based on the data obtained from four surveys along two transects o(?) mud flat and flat with mangrove in the Daya Bay from 1987 to 1989,distribution, environment characteristics, species composition and quantity of benthic communities in mangrove area was analysed and discussed. The results are as follows:1. Mangroves in the Daya Bay are only distributed on the sheltered coast of the inner bay. The distribution is in close relationship with substrate and wind waves. The mangroves on mud flat beyond wind waves are relatively denser while those on sand flat beyond wind waves are thin, short and small. There are no mangroves, or only one or two short Excoecaria agallocha are occasionally in sight, on sand flat influenced by wind waves.2. The species composition and distribution of large benthic community in the mangrove area is in close relationship with mangrove density and substrate. The structure of large benthic community is complicated where mangrove is thin.3. There are many species of large benthic animal in the mangrove area in the Daya Bay. The species diversity is high (H'=2.25), and the biomass is large (131. 00～406. 07g/m^2). The community structure is more complicated than that in the estuary of the Jiulongjiang River, Fujian.
出处
《台湾海峡》
CAS
CSCD
1992年第2期161-166,共6页
Journal of Oceanography In Taiwan Strait
