| Liu Kun,Lin Heshan,He Xuebao,Huang Yaqin,Li Zhong,Lin Junhui,Mou Jianfeng,Zhang Shuyi,Wang Jianjun,Sun Jun. 2020. Macrobenthic communities on the continental shelf of the Prydz Bay, East Antarctica. Acta Oceanologica Sinica, 39(2):38－48 |
| Macrobenthic communities on the continental shelf of the Prydz Bay, East Antarctica |
| 东南极普里兹湾陆架区大型底栖动物群落结构 |
| Received:July 02, 2018 |
| DOI：10.1007/s13131-018-1280-7 |
| Key words:macrobenthic communities functional feeding groups environmental factors Antarctica Prydz Bay |
| 中文关键词: 大型底栖动物群落 摄食功能群 环境因子 南极 普里兹湾 |
| 基金项目: |
| Author Name | Affiliation | E-mail | | Liu Kun | College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, China
Laboratory of Marine Biology and Ecology, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China | | | Lin Heshan | Laboratory of Marine Biology and Ecology, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China
Fisheries College, Jimei University, Xiamen 361021, China | | | He Xuebao | Laboratory of Marine Biology and Ecology, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China | | | Huang Yaqin | Laboratory of Marine Biology and Ecology, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China
Fisheries College, Jimei University, Xiamen 361021, China | | | Li Zhong | Laboratory of Marine Biology and Ecology, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China | | | Lin Junhui | Laboratory of Marine Biology and Ecology, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China | | | Mou Jianfeng | Laboratory of Marine Biology and Ecology, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China | | | Zhang Shuyi | Laboratory of Marine Biology and Ecology, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China | | | Wang Jianjun | Laboratory of Marine Biology and Ecology, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China | wangjianjun220@tio.org.cn | | Sun Jun | College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, China | phytoplankton@163.com |
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| Abstract: |
| To explore the spatial pattern of macrobenthic communities and their response to environmental factors in the Prydz Bay, samples were collected using a 0.25-m2 box corer at 10 stations from November 2012 to April 2013. A total of 50 species of macrobenthos belonging to 8 phyla and 33 families were identified, of which polychaetes (e.g., Maldane sarsi) and sponges (e.g., Halichondria sp. and Leucosolenia sp.) were the most prominent groups. The macrobenthos in study area were categorized into five functional groups based on the feeding type, and the detritivorous group represented by polychaetes showed the highest average abundance, while the planktophagous group represented by sponges showed the highest average biomass. Macrobenthos abundance (0–592 ind./m2) and biomass (0–1 155.5 g/m2) in the Prydz Bay were relatively lower than those of other Antarctic shelf soft-bottom waters, although the compositions of the dominant species and functional feeding groups were similar. The results of the Spearman rank correlation analysis indicated that the average biomass of the macrobenthos and the biomass of the planktophagous group in the study area were negatively correlated with the water depth, sediment grain size and silt percentage. However, these variables were clearly not strong determinants of macrobenthos assemblage structure. Many factors not measured in the study, e.g., sediment organic matter and iceberg interference, have probably influenced the spatial distribution of macrobenthic community structure in the Prydz Bay. |
| 中文摘要: |
| 为了解普里兹湾大型底栖动物群落的空间分布及其对环境因子的响应，于2012年11月-2013年4月在该海域进行了10个站位的样品采集。在普里兹湾陆架区共鉴定大型底栖动物8门33科50种，其中多毛类（如Maldane sarsi）和海绵动物（如Halichondria sp.和Leucosolenia sp.）为该海域优势类群。按照摄食类型将大型底栖动物划分为5个功能群，其中碎屑食者（如部分多毛类）栖息密度较高，悬浮物食者（如海绵动物）具有较高的生物量。相比于南极其他软质底陆架区域，普里兹湾大型底栖动物平均密度（0-592 ind./m2）和生物量（0-1155.5 g/m2）均较低，主要优势种和摄食功能群组成相似。Spearman秩相关分析显示，研究海域大型底栖动物平均生物量和悬浮物食者生物量与水深、沉积物粒径和粉砂含量呈负相关关系。沉积物有机质含量和冰山干扰可能是影响普里兹湾大型底栖动物群落结构组成和分布的主要环境因子。 |
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