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首页> 外文期刊>Journal of oceanography >Distribution, biomass, and species composition of salps and doliolids in the Oyashio-Kuroshio transitional region: potential impact of massive bloom on the pelagic food web
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Distribution, biomass, and species composition of salps and doliolids in the Oyashio-Kuroshio transitional region: potential impact of massive bloom on the pelagic food web

机译：牡山水道过渡区域的分布，生物质和含水摩尔啶的种构组成：巨大盛开对骨质食品网的潜在影响

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摘要

The Oyashio-Kuroshio Transitional Region (OKTR) is a nursery ground for pelagic fishes; thus, community succession of mesozooplankton is pivotal to understand prey availability, and it subsequently affects recruitment success. We investigated the surface distribution, biomass, and species composition of thaliaceans (salps and doliolids) that potentially have a significant impact on the food web and biogeochemical cycle by forming intensive blooms. A total of 11 thaliacean species were recorded from 62 locations along two transects at 36 degrees N and 38.5 degrees N extending from 142 degrees E to 180 degrees in May to June 1993. Salps and doliolids were found at 93% and 84% of the stations, respectively, and their biomass values varied widely in space (0.00011-79.56 and 0.00001-5.11 mg C m(-3) for salps and doliolids, respectively). Thalia democratica was the most dominant salp and particularly abundant at stations east of 165 degrees E on the 36 degrees N-line; the abundance varied from 103 to 1379 ind m(-3). Dolioletta gegenbauri and Doliolum denticulatum were dominant doliolids, although their biomass values were far lower than that of salps. Multivariate statistical analysis with PRIMER revealed that the distribution of thaliaceans in the OKTR was not uniform in space and was affected by oceanographic conditions; doliolids tended to occur in much warmer (14.10-15.63 degrees C) and saline water mass (34.54-34.72) than salps (13.16-14.95 degrees C and 34.40-34.53). In terms of population clearance rates, the most dense salp blooms have the potential to sweep 200% of their resident water per day, indicating that salp blooms cause deleterious feeding conditions for pelagic fishes through non-selective filter feeding.
机译：oyashio-kuroshio过渡区（oktr）是牙龈鱼类的苗圃;因此，Mesozooplankton的社区连续是衡量猎物的可用性，随后影响招聘成功。我们调查了Thaliaceans（Salps和Dolliolids）的表面分布，生物质和物种组成，其通过形成密集绽放可能对食物纤维网和生物地造地循环产生重大影响。在1993年6月，从36℃和38.5度从142摄氏度延伸到180度的38.5度，共记录了11个半导体物种。5月至1993年6月，从142℃延伸到180度。Salps和氯偶体被发现为93％和84％的车站分别和它们的生物质值分别在太空中广泛变化（0.00011-79.56和0.00001-5.11 mg C m（-3），用于Salps和二摩尔潜水体）。 Zhalia Impratica是最多的萨尔普斯，在165摄氏度以东的36度N-Line e以东的最大限度尤其丰富;丰度从103到1379 Ind m（-3）变化。 Dolioletta Gegenbauri和Doliolum牙耳抑制是占主导地层摩洛啶，尽管它们的生物质值远低于Salps。与引物的多变量统计分析显示，秋季秋季的分布在太空中并不均匀，受海洋环境的影响;潮摩尔啶妇女倾向于更温暖（14.10-15.63℃）和盐水质量（34.54-34.72）（13.16-14.95℃和34.40-34.53）。在人口清除率方面，最密集的萨尔普盛开的盛会每天有可能扫除其居民水中的200％，表明Salp Blooms通过非选择性过滤喂养对骨盆鱼类引起有害的饲养条件。

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  • 来源
    《Journal of oceanography》 |2020年第5期|351-363|共13页
  • 作者

    Ishak Nurul Huda Ahmad; Tadokoro Kazuaki; Okazaki Yuji; Kakehi Shigeho; Suyama Satoshi; Takahashi Kazutaka;

  • 作者单位

    Univ Tokyo Grad Sch Agr & Life Sci Dept Aquat Biosci Bunkyo Ku Tokyo 1138657 Japan|Univ Malaysia Terengganu Fac Sci & Marine Environm Kuala Nerus 21030 Terengganu Malaysia|Univ Malaysia Terengganu Inst Oceanog & Environm Kuala Nerus 21030 Terengganu Malaysia;

    Tohoku Natl Fisheries Res Inst Shogama Miyagi Japan;

    Tohoku Natl Fisheries Res Inst Shogama Miyagi Japan;

    Tohoku Natl Fisheries Res Inst Shogama Miyagi Japan;

    Tohoku Natl Fisheries Res Inst Hachinohe Stn Hachinohe Aomori Japan;

    Univ Tokyo Grad Sch Agr & Life Sci Dept Aquat Biosci Bunkyo Ku Tokyo 1138657 Japan;

  • 收录信息 美国《科学引文索引》(SCI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Pelagic tunicates; Salpida; Doliolida; Abundance; Swarm; Clearance rates;

    机译：pelagic幕幕;萨尔佩达;迪威达;丰富;群;清关率;

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