生物多样性 ›› 2003, Vol. 11 ›› Issue (3): 204-215.doi: 10.17520/biods.2003027

• 论文 • 上一篇    下一篇

楚科奇海及白令海大型底栖生物初步研究

李荣冠, 郑凤武, 江锦祥, 郑成兴, 黄心光, 黄翔玲, 徐惠洲   

  1. (国家海洋局第三海洋研究所,厦门 361005)
  • 收稿日期:2002-12-03 修回日期:2003-04-11 出版日期:2003-05-20
  • 通讯作者: 李荣冠

Macrobenthos in the Chukchi Sea and Bering Sea

LI Rong-Guan, ZHENG Feng-Wu, JIANG Jin-Xiang, ZHENG Cheng-Xing, HUANG Xin-Guang, HUANG Xiang-Ling, XU Hui-Zhou   

  1. Third Institute of Oceanography,State Oceanic Administration,Xiamen 361005
  • Received:2002-12-03 Revised:2003-04-11 Online:2003-05-20
  • Contact: LI Rong-Guan

1999年夏季在楚科奇海、白令海采用30 cm×30 cm箱式取样器,取得16个站位大型底栖生物定量样品。经分析研究有大型底栖生物92科164种,其中多毛类、软体动物和甲壳动物种数最多,占总种数的88.41%,三者构成北极楚科奇海和白令海大型底栖生物的主要类群。优势种有独毛虫属一种(Tharyx sp.) 、齿吻沙蚕属一种(Nephtys sp.)、囊叶齿吻沙蚕(Nephtys caeca)、平滑胡桃蛤(Ennucula tenuis)、短吻状蛤(Nuculana pernula pernuloides)、拟猛钩虾属一种( sp.)、日本沙钩虾(Byblis japonicus)和萨氏真蛇尾(Ophiura sarsii)等。楚科奇海和白令海大型底栖生物平均生物量为111.83 g/m2,平均栖息密度为2538个/m2。生物量和栖息密度均以多毛类和软体动物占多数。楚科奇海和白令海大型底栖生物有5个群落类型:Ⅰ. 梯额虫(Scalibregma inflatum)-紫轮参(Polycheira rufescens)-结栉盖蛇尾(Stegophiura nodosa)群落, Ⅱ. 拟单指虫(Cossurella sp.)-平滑胡桃蛤-鳞甲钩虾(Lepidepecreum sp.)群落, Ⅲ. 缩头竹节虫(Maldane sarai)-葛氏希泊钩虾(Hippomedon gorbunovi)-萨氏真蛇尾群落, Ⅳ.齿吻沙蚕(Nephtys sp.)-平滑胡桃蛤-日本沙钩虾-戈芬星虫(Golfingia sp.)群落和白令海群落, 即索沙蚕(Lumbrineris fragilis)-户枢蛤(Asthenothaerus sp.)-太平洋方甲涟虫(Eudorella pacifica)-革囊星虫(Phascolion sp.)群落。楚科奇海的群落Ⅰ、群落Ⅱ和白令海各群落结构相对稳定;楚科奇海群落Ⅲ和群落Ⅳ出现一定扰动。

Species diversity, quantity, distribution and community of macrobenthos are analyzed in this paper. The materials were collected from 16 stations in the Chukchi Sea and Bering Sea in Summer 1999. For quantitative analysis, samples were collected by a 30 cm×30 cm box sampler. There were in all 92 families and 164 species, of which Polychaeta comprised 62 species, Mollusca 42, Crustacea 37, Echinodermata 14 and other groups 9 species. Polychaeta, Mollusca and Crustacea occupy 88.41% of all species. Cossurella sp., Tharyx sp., Maldane sarai, Nephtys caeca, Phascolion sp., Ennucula tenuis, Nuculana pernula pernuloides, Clinocardium (Ciliatocardium) ciliatum, Asthenothaerus sp., Eudorella pacifica, Lepidepecreum sp., Harpiniopsis sp., Byblis japonicus, and Ophiura sarsii were dominant species and key species. The average biomass was 111.83 g/m2,and individual density was 2538 inds./m2 in Chukchi Sea and Bering Sea.Five macrobenthic commumities from Chukchi Sea and Bering Sea are recorded in this paper. They are Community Ⅰ. Scalibregma inflatum-Polycheira rufescens-Stegophiura nodosa, Ⅱ. Cossurella sp. -Ennucula tenuis-Lepidepecreum sp., Ⅲ. Maldane sarai-Hippomedon gorbunovi Ophiura sarsii, Ⅳ. Nephtys sp. -Ennucula tenuis -Byblis japonicus-Golfingica sp., and the Community of the Bering Sea, Lumbrineris fragilis-Asthenothaerus sp. -Eudorella pacifica-Phascolion sp. Commumity of the Bering Sea and Communities Ⅰ and Ⅱ in Chukchi Sea are relatively stable, but disturbance characterizes Communities Ⅲ and Ⅳ in the Chukchi Sea.

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