水产学报2018，Vol.42Issue(6)：902-911,10.DOI:10.11964/jfc.20151110157
南麂列岛海洋自然保护区岩相潮间带软体动物种类组成与数量分布
Mollusk species composition and quantity distribution of intertidal zone in Nanji Islands Marine Nature Reserve
摘要
Abstract
Based on the mollusks’ data which were obtained by biological resources quantitative and qualitative in-vestigation in seven sections of the intertidal zone of Nanji Islands in November 2013, February, May and August 2014, this paper studied the species composition and quantitative distribution of mollusks in this area. The results are as follows: (1) A total of 63 species of mollusks were identified, which belong to 3 classes, 13 orders, 34 famil-ies and 52 genera. The numbers of species that appeared in spring, summer, autumn and winter were 48, 48, 45 and 41, respectively. (2) The numbers of mollusks resources was different in different seasons. As for the number of individuals: spring＞ autumn＞ winter＞ summer; As for the weight: spring＞ autumn＞ summer＞ winter; the average individual number and biomass of mollusks are 506.5/m2 and 801.54 g/m2, and the maximum was in spring and the minimum was in winter, respectively. (3) The average numbers of mollusks varied in different tidal areas: middle tidal zone＞ low tidal zone＞ high tidal zone. The differences in biomass were also apparent: low tidal zone＞ middle tidal zone＞high tidal zone. (4) The dominant species varied greatly in different seasons, but Septifer virgatus was the first dominant species throughout the year. Because of the influence of environmental factors, such as currents, topography and wind waves, the distribution of mollusks in Nanji Islands varied greatly in different seasons and sections. At the same time, compared with the past data, the kinds of and the number of mollusks in Nanji Islands have decreased to some extent in recent 20 years.关键词
软体动物/潮间带/种类组成/时空分布/南麂列岛Key words
mollusks/intertidal zone/species composition/spatial-temporal distribution/Nanji Islands分类
农业科技引用本文复制引用
毕耜瑶,许永久,俞存根,蔡厚才,陈万东,夏陆军,谢旭..南麂列岛海洋自然保护区岩相潮间带软体动物种类组成与数量分布[J].水产学报,2018,42(6):902-911,10.基金项目
国家自然科学基金(31270527) （31270527）
南麂列岛国家海洋自然保护区管理局委托项目(NJKJ-2013-003) National Natural Science Foundation of China (31270527) （NJKJ-2013-003）
Commissioned Projects of Nanji Is-lands National Marine Nature Reserve Administration (NJKJ-2013-003) （NJKJ-2013-003）
