...
首页> 外文期刊>Russian journal of marine biology >Current Data on the Taxonomic Composition and Distribution of the Trawl Macrozoobenthos in Russian Waters of the Sea of Japan
【24h】

Current Data on the Taxonomic Composition and Distribution of the Trawl Macrozoobenthos in Russian Waters of the Sea of Japan

机译:日本海俄罗斯海域拖网巨zo的分类学组成和分布的最新数据

获取原文
获取原文并翻译 | 示例
           

摘要

A complex bottom trawl survey (430 stations) was conducted over all of the shelf and continental slope (within a depth range of 10-750 m) in the Russian waters of the Sea of Japan from April 1 to July 8, 2015. A total of 211 taxa of invertebrates were recorded from trawl catches. The most widely represented of them were starfish (36), shrimps (32), gastropods (27), bivalves (23), brachyuran and anomuran crabs (11), polychaetes (11), coral polyps (10), and sponges (10). The total recorded biomass of macrozoobenthos in benthic biotopes of the northern Sea of Japan reached 1572500 t (136600 t in Peter the Great Bay, 341500 t in the Southern Primorye area, 686000 t in the northern Primorye area, and 408400 t in the Western Sakhalin subzone), which is higher than the mean long-term level. The total stock of commercial invertebrates was estimated at 630000 t. Its largest portion (265200 t, or 42.1%) was concentrated in the northern Primorye area (western Tatar Strait). The mean specific biomass of the trawl macrozoobenthos constituted 13.5 +/- 1.1 g/m(2) (including 6.3 +/- 0.5 g/m(2) of commercial benthic species). The most abundant groups were brittle stars (372200 t), brachyuran crabs (231600 t), anomuran crabs (48700 t), shrimps (226900 t), sponges (182900 t), sea lilies (167500 t), starfish (77200 t), sea urchins (59000 t), and bivalves (49500 t). The vertical distribution of the total benthos and its commercial portion was characterized by maxima in the upper shelf (10-50 m) and within a depth range of 300-400 m. In the northwestern Sea of Japan, 18 biocenotic complexes of trawl macrozoobenthos were identified. The largest areas were occupied by the group of the sedentary seston-feeding sea lily Heliometra glacialis (biomass 5.5 g/m(2), depth range of 104-692 m, 131 stations), the group of the polyphagous snow crab Chionoecetes opilio (4.4 g/m(2), 27-552 m, 71 stations), the group of the mobile seston-feeding basket star Gorgonocephalus eucnemis (6.6 g/m(2), 58-372 m, 40 stations), and the group of the polyphagous pale yellow sea urchin Strongylocentrotus pallidus (4.7 g/m(2), 17-351 m, 40 stations).
机译:2015年4月1日至7月8日,在日本海的俄罗斯水域内,对所有大陆架和大陆坡(深度范围10-750 m)进行了一次复杂的底拖网调查(430站)。拖网渔获记录了211个无脊椎动物分类单元中的7个。其中代表最广泛的是海星(36),虾(32),腹足纲动物(27),双壳类(23),水牛和无尾蟹(11),poly(11),珊瑚虫(10)和海绵(10) )。日本北部海底栖生物群落中大型动物的生物量总记录达到1572500吨(彼得大帝湾为136600吨,滨海边疆区为341500吨,滨海边疆区为686000吨,萨哈林西部为408400吨分区域),高于长期平均水平。商业无脊椎动物的总存量估计为630000吨。其最大部分(265200吨,或42.1%)集中在北部滨海边疆区(塔塔尔海峡西部)。拖网大型动物的平均比生物量为13.5 +/- 1.1 g / m(2)(包括商业底栖物种的6.3 +/- 0.5 g / m(2))。最丰富的群体是脆星(372200吨),短毛蟹(231600吨),无尾蟹(48700吨),虾(226900吨),海绵(182900吨),海百合(167500吨),海星(77200吨) ,海胆(59000吨)和双壳类(49500吨)。整个底栖动物及其商业部分的垂直分布的特征是在上层搁架(10-50 m)内且在300-400 m的深度范围内达到最大值。在日本西北海,发现了18种拖网大螯虾的生物沉着复合体。久坐不动的喂食海百合的Heliometra glacialis(生物量5.5 g / m(2),深度范围104-692 m,131个站),多食性雪蟹Chionoecetes opilio( 4.4 g / m(2),27-552 m,71个工位),移动式喂食basket星Gorgonocephalus eucnemis的组(6.6 g / m(2),58-372 m,40个工位)和该组多食性浅黄色海胆Strongylocentrotus pallidus(4.7 g / m(2),17-351 m,40站)。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号