摘要
本文对南麂列岛国家海洋自然保护区微、小型藻类的种类组成、生态类群、分布特点等进行了较详细的分析研究。经鉴定共有微、小型藻类４５９种，在海水和海洋底栖沉积物中发现的有２８３种；泥滩、沙滩、岩礁潮间带中发现的有２８１种；两者共同出现的有１０５种。其中，硅藻类占７１．２４％，蓝藻类占１３．９４％，甲藻类占１２．６４％，绿藻类和金藻类分别占１．５３％和０．６５％。这些种类大都为本区的新记录，为我国海洋微、小型藻类首次记录的有３０种。根据种类组成、分布特点和温度性质，划分为三个生态类群：广布性类群、暖水性类群、温带性类群。此外，根据生境或生活方式不同，划分为两个生态类群：海洋浮游藻类、海洋底栖藻类或附生藻类；根据盐度的不同，又可划分为：淡水藻类、半咸水藻类、海洋藻类；还可以根据藻类个体大小的不同，划分为两个生态类群：海洋微型藻类、海洋小型藻类。
detailed analysis of species composition, ecological groups and distribution characteristics of nano- and microalgae in Nanji Islands national marine nature conservation area was made. 459 species in total, 7124% of which are Bacillariophyta (327 sp),1394% Cyanophyta (64 sp), 1264% Pyrrophyta (58 sp), 153% Chlorophyta (7 sp) and 065% Chrysophyta (3 sp), are identified Most species are newly recorded in this area and 30 species are first reported in Chinese marine nano and microalgae 283 species are distributed in sea water and marine benthic sediments and 281 species in muddy flat, sandy beach and reef flat of the intertidal zone 105 species of them can be found on both ecotopes According to water temperature variation, species composition and distribution characteristics of nano and microalgae, three ecological groups, ieeurytopic group, warm water group and temperature group could be distinguished Besides, according to different habitats and living environments,there are two ecological groups, (1) Marine planktonic algae group; (2) Marine benthic algae group ( or epiphytic algae group), or by salinity variation,freshwater algae group, brackish algae group and sea water (marine)algae group are distinguished Also according to algae size, marine nanoalgae group and marine microalgae group could be distinguished
出处
《东海海洋》
1998年第2期1-21,共21页
Donghai Marine Science
基金
浙江省自然科学基金
关键词
海洋
微型藻类
小型藻类
藻
生态特点
保护区
Nanji Islands National Marine Nature Conservation Area, nano and microalgae, ecological groups
