CAJ | 학술논문

于2009年3月对鸭绿江河口进行了10个站的浮游植物生态调查,分析了该海域浮游植物的种类组成、优势种类、群落结构以及水平分布等特征参数.本次调查共鉴定浮游植物48种,其中硅藻种类最多,达41种,甲藻其次,为6种,金藻1种.浮游植物可划分为广温类群、暖水类群和暖温类群3个生态类群,以广温类群为主.浮游植物细胞数量平均4.67×108个/m3,细胞数量自河口向外海逐渐降低.其中,中肋骨条藻(Skeletonema costatum)占据绝对优势.浮游植物群落优势种单一且优势度较大,群落结构相对简单.相关性分析表明温度和盐度是浮游植物细胞数量的主要限制性因子.浮游植物数量受鸭绿江径流的影响较大.
우2009년3월대압록강하구진행료10개참적부유식물생태조사,분석료해해역부유식물적충류조성、우세충류、군락결구이급수평분포등특정삼수.본차조사공감정부유식물48충,기중규조충류최다,체41충,갑조기차,위6충,금조1충.부유식물가화분위엄온류군、난수류군화난온류군3개생태류군,이엄온류군위주.부유식물세포수량평균4.67×108개/m3,세포수량자하구향외해축점강저.기중,중륵골조조(Skeletonema costatum)점거절대우세.부유식물군락우세충단일차우세도교대,군락결구상대간단.상관성분석표명온도화염도시부유식물세포수량적주요한제성인자.부유식물수량수압록강경류적영향교대.
In order to study the structure of the phytoplankton community of the Yalujiang River and its influencing factors, phytoplankton samples were collected from the Yalujiang River Estuary and its adjacent waters in March, 2009. A total of 48 phytoplankton species were identified, including forty-one diatoms, six dinoflagellates and one golden-brown alga. Phytoplankton species can be divided into three ecological groups:eurythermal taxa, warm water taxa and warm temperature taxa, and the eurythermal taxa was the dominant group. The average number of phyto-plankton cell was 4.67 × 108/m3, and the cell number decreased from the inner section of the Yalujiang River estuary to open sea. The survey results showed that the structure of phytoplankton community was simple with Skeletonema costatum as the main dominant species. From the correlation analysis, it is concluded that temperature and salinity were the major limit factors for the number of phytoplankton cells, and the Yalujiang River runoff had made a great impact on the number of phytoplankton cells.