热带和亚热带大西洋微浮游甲壳类(十足目、大戟科和栉水母纲)的分布模式

IF 3.8 3区 地球科学 Q1 OCEANOGRAPHY
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引用次数: 0

摘要

大型中上层甲壳类是深海微浮游生物群落的主要组成部分,在食物网和生物碳泵中发挥着重要作用。然而,与中上层鱼类等其他类群相比,对它们的研究很少。在此,我们分析了大西洋从巴西外海(南纬 15°)到加那利群岛(北纬 25°)纬度横断面上分类组成、丰度和生物量的昼夜变化和水深变化。共鉴定出 95 个物种,隶属于 9 个不同的科,其中大戟科(Euphausiidae)是数量最多的科,而金鱼科(Acanthephyridae)是对总生物量贡献最大的科。我们发现了与大西洋生态区域相关的、与环境变量有关的独特组合。在整个横断面上发现了昼夜垂直洄游,甚至跨越了最小含氧区,这可能是由于这些生物的新陈代谢适应性所致。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Distribution patterns of micronektonic crustaceans (Decapoda, Euphausiacea, and Lophogastrida) in the tropical and subtropical Atlantic Ocean

Large pelagic crustaceans are a main component of the micronekton community in the deep-sea having an important role in the food webs and the biological carbon pump. However, they are scarcely studied in comparison to other groups such as mesopelagic fish. Here, we analyse day/night and bathymetric variability in taxonomic composition, abundance, and biomass across a latitudinal transect in the Atlantic Ocean from off Brazil (15°S) to the Canary Islands (25°N). A total of 95 species were identified belonging to 9 different families, of which Euphausiidae was the most abundant family and Acanthephyridae the family contributing the most to the total biomass. We found distinct assemblages associated with Atlantic ecoregions related to the environmental variables. Diel vertical migrations were detected along the entire transect, even crossing the oxygen minimum zone, likely due to the metabolic adaptations of these organisms.

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来源期刊
Progress in Oceanography
Progress in Oceanography 地学-海洋学
CiteScore
7.20
自引率
4.90%
发文量
138
审稿时长
3 months
期刊介绍: Progress in Oceanography publishes the longer, more comprehensive papers that most oceanographers feel are necessary, on occasion, to do justice to their work. Contributions are generally either a review of an aspect of oceanography or a treatise on an expanding oceanographic subject. The articles cover the entire spectrum of disciplines within the science of oceanography. Occasionally volumes are devoted to collections of papers and conference proceedings of exceptional interest. Essential reading for all oceanographers.
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