| WANG Jianjun,HE Xuebao,LIN Heshan,LIN Junhui,HUANG Yaqin,ZHENG Chengxing,ZHENG Fengwu,LI Rongguan,JIANG Jinxiang. 2014. Community structure and spatial distribution of macrobenthos in the shelf area of the Bering Sea. Acta Oceanologica Sinica, 33(6):74－81 |
| Community structure and spatial distribution of macrobenthos in the shelf area of the Bering Sea |
| Community structure and spatial distribution of macrobenthos in the shelf area of the Bering Sea |
| Received:March 28, 2013 Revised:August 03, 2013 |
| DOI：10.1007/s13131-014-0491-9 |
| Key words:Bering Sea marine macrobenthos community structure spatial distribution diversity |
| 中文关键词: Bering Sea marine macrobenthos community structure spatial distribution diversity |
| 基金项目:The China Action Plan of the International Polar Year; the Public Science and Technology Research Funds Projects of Ocean under contract No. 201105022-2; the National Natural Science Foundation of China under contract Nos 41306115 and 41306116; the Polar Science Strategic Research Foundation of China under contract No. 20140309. |
| Author Name | Affiliation | E-mail | | WANG Jianjun | Laboratory of Marine Biology and Ecology, Third Institute of Oceanography, State Oceanic Administration, Xiamen 361005, China | wangjianjun220@tio.org.cn | | HE Xuebao | Laboratory of Marine Biology and Ecology, Third Institute of Oceanography, State Oceanic Administration, Xiamen 361005, China | | | LIN Heshan | Laboratory of Marine Biology and Ecology, Third Institute of Oceanography, State Oceanic Administration, Xiamen 361005, China | | | LIN Junhui | Laboratory of Marine Biology and Ecology, Third Institute of Oceanography, State Oceanic Administration, Xiamen 361005, China | | | HUANG Yaqin | Laboratory of Marine Biology and Ecology, Third Institute of Oceanography, State Oceanic Administration, Xiamen 361005, China | | | ZHENG Chengxing | Laboratory of Marine Biology and Ecology, Third Institute of Oceanography, State Oceanic Administration, Xiamen 361005, China | | | ZHENG Fengwu | Laboratory of Marine Biology and Ecology, Third Institute of Oceanography, State Oceanic Administration, Xiamen 361005, China | | | LI Rongguan | Laboratory of Marine Biology and Ecology, Third Institute of Oceanography, State Oceanic Administration, Xiamen 361005, China | | | JIANG Jinxiang | Laboratory of Marine Biology and Ecology, Third Institute of Oceanography, State Oceanic Administration, Xiamen 361005, China | |
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| Abstract: |
| Field investigations of marine macrobenthos were conducted at ten sites in the Bering Sea in July 2010. Altogether 90 species of macrobenthos belonging to 59 families and 78 genera were identified. Among them, 41 polychaetes, 16 mollusks, 23 crustaceans, three echinoderms, two cnidarians, one nemertean, one priapulid, two sipunculids, and one echiuran were identified. The average density and biomass of total macrobenthos were 984 ind./m2 and 1 207.1 g/m2 of wet weight, respectively. The predominant species in the study area were Scoloplos armiger, Eudorella pacifica, Ophiura sarsii, Heteromastus filiformis, Ennucula tenuis, and Harpiniopsis vadiculus by abundance, while the predominant species in this area was Echinarachnius parma by biomass. Hierarchical cluster analysis (Bray-Curtis similarity measure) revealed that two important benthic assemblages in the study area were Community A and Community B. Community A was stable and Community B was unstable, as shown by the Abundance/Biomass Comparisons (ABC) approach. The macrobenthic community structure in the shelf of the Bering Sea was characterized by its high abundance and biomass, high productivity but great heterogeneity. |
| 中文摘要: |
| Field investigations of marine macrobenthos were conducted at ten sites in the Bering Sea in July 2010. Altogether 90 species of macrobenthos belonging to 59 families and 78 genera were identified. Among them, 41 polychaetes, 16 mollusks, 23 crustaceans, three echinoderms, two cnidarians, one nemertean, one priapulid, two sipunculids, and one echiuran were identified. The average density and biomass of total macrobenthos were 984 ind./m2 and 1 207.1 g/m2 of wet weight, respectively. The predominant species in the study area were Scoloplos armiger, Eudorella pacifica, Ophiura sarsii, Heteromastus filiformis, Ennucula tenuis, and Harpiniopsis vadiculus by abundance, while the predominant species in this area was Echinarachnius parma by biomass. Hierarchical cluster analysis (Bray-Curtis similarity measure) revealed that two important benthic assemblages in the study area were Community A and Community B. Community A was stable and Community B was unstable, as shown by the Abundance/Biomass Comparisons (ABC) approach. The macrobenthic community structure in the shelf of the Bering Sea was characterized by its high abundance and biomass, high productivity but great heterogeneity. |
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