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| 1 | 2014年春季季风间期东印度洋赤道及其邻近海域硅藻群落显示文摘2014年4月10日至5月13日在东印度洋赤道区及其邻近海域(10.08°N—6.00°S,80.00°~96.10°E)进行硅藻物种组成和群落结构的调查。分析了45个网采样品,共鉴定出浮游硅藻34属113种(包括变种、变形及未定名种),大部分物种为热带外洋性种以及暖海外洋性种,与该海区的热带及亚热带的环境特征一致。优势种为佛氏梯形藻(Climacodium frauenfeldianum)、地中海细柱藻(Leptocylindrus mediterraneus)、密聚角毛藻(Chaetoceros coarctatus)、美丽漂流藻(Planktoniella foromsa)、大西洋角毛藻那不勒斯变种(Chaetoceros atlanticus var.neapolitanus)、距端假管藻(Pseudosolenia calcar-avis,即距端根管藻Rhizosolenia calcaravis)、圆柱几内亚藻(Guinardia cylindrus)、达蒂角毛藻(Chaetoceros dadayi)、伏氏海线藻(Thalassionema frauenfeldii)、离心列海链藻(Thalassiosira excentrica)、瘤面角毛藻(Chaetoceros bacteriastroides)以及笔尖根管藻粗径变种(Rhizosolenia styliformis var.latissima)等。硅藻的平均细胞丰度为1.855×103个/m3,其平面分布不均匀,赤道断面细胞丰度较低,高值区出现在海区北部。聚类分析发现有7种生态类群,这些硅藻的种类和丰度平面分布与上层水体(200m以浅)温度、盐度及营养盐的水柱平均值有较好的对应关系。 | 薛冰 孙军 丁昌玲 王东晓 | 2016 | 海洋学报2016,38,2: | 7 |
| 2 | A Comparison of the Zooplankton Community in the Bay of Bengal and South China Sea During April-May, 2010显示文摘This study compares the structure of the zooplankton community in the Bay of Bengal(BoB) and South China Sea(SCS) during the period of spring inter-monsoon, 2010. A total of 215 species of zooplankton were identified, of which 187 species were present in the BoB and 119 in the SCS. Of the taxonomic groups recorded, Copepoda was the most diverse group in all samples followed by pelagic Tunicata, Siphonophorae and Chaetognatha. Flaccisagitta enflata, Cosmocalanus darwinii, Euchaeta larva, Macrura larva and Candacia truncata were predominant both in the BoB and SCS. Moreover, the distribution of some dominant species differed regionally, such as Cypridina dentata, Pleuromamma robusta and Mesosagitta decipiens only in the BoB, and Pleuromamma gracilis, Neocalanus gracilis and Eudoxoides spiralis in the SCS. The average zooplankton abundance was 33.37 ± 7.19 ind. m^(-3) in the BoB and 35.08 ± 2.07 ind. m-3 in the SCS. Copepoda was one of the most abundant groups in the Bo B and SCS. Based on multivariate analysis, it was possible to distinguish the zooplankton in the BoB and SCS communities at the similarity level of approximately 55%, and the dissimilarity was mainly due to C. dentata, P. robusta, M. decipiens, C. darwinii, N. gracilis and P. gracilis. The relationships between zooplankton and temperature, salinity and chlorophyll a were not statistically significant. Zooplankton community structure in the BoB and SCS was observed to be generally similar in terms of species composition and abundance, but the differences observed may be the result of species-specific geographical distribution and local hydrographic conditions. | LI Kaizhi YIN Jianqiang HUANG Liangmin TAN Yehui LIN Qiang | 2017 | Journal of Ocean University of China2017,16,6: | 2 |
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