摘要
于 1999 年定量研究了广西英罗港红树林潮沟潮水中游泳动物的季节变化。共发现有游泳动物 70种，包括 5 种软体动物、11 种甲壳动物和 54 种鱼类。在各季节出现的游泳动物种数分别有：春 37 种，夏40 种，秋 33 种，冬 31 种。季度出现频数 F =1～4 的游泳动物种数分别为 33，13，14 和 10 种。尾数以冬季最多，鲜重则以春季最大。不同季节游泳动物在尾数和鲜重上最大优势种均不同；不同种类间数量相差较为悬殊，优势种相当明显。每个季节及全年都只有少数几个种的相对重要值较大；不同季节的相对重要值最大的种不同。综合来看，脊尾白虾和前鳞骨鲻是红树林潮沟游泳动物群落最重要的优势种群。生物多样性指数 D, H ', J 值均以夏季最高。红树林潮沟游泳动物生物多样性高于林缘。
：This paper deals with the quantitative study on the seasonal dynamics of nektons in the tidal creek waters of within mangroves of Yingluo Bay, Guangxi, in 1999. Totally 70 species of nekton, including 5 species of molluscan, 11 species of crustacean and 54 species of fishes, are found. 37 species in spring, 40 in summer, 33 in autumn and 31 in winter respectively appear seasonally in the creek waters. The numbers of nekton species with seasonal occurring frequency ( F ) ranging from 1 to 4 are 33, 13, 14 and 10 respectively. The individual number in winter is the largest in the four seasons, while the fresh weight in spring is the largest. The most dominant species of the individual number and fresh weight differ in different seasons. The difference in the individual and fresh weight between various species is so large that the dominant species are fairly significant. The relative importance values ( V %) for only few species are higher than 1 % in each season and the whole year. The species of the greatest relative importance values differ in the four seasons. Generally speaking, Exopalaemon carinicauda and Osteomugil ophuyseni are the most important populations in the nekton community in the tidal creek waters of within mangroves of Yingluo Bay, Guangxi. The biodiversity index D, variety index H' and evenness index J of nektons are higher in summer than those in other seasons. The biodiversity of the nektons in the tidal creek waters is higher than that of the mangrove-fringed waters.
出处
《海洋通报》
CAS
CSCD
北大核心
2002年第6期16-24,共9页
Marine Science Bulletin
基金
广西"十百千"人才工程专项基金[桂人函 ( 1998 ) 354 号]资助
