Predatory zooplankton on the move: Themisto amphipods in high-latitude marine pelagic food webs.

Abstract:
Hyperiid amphipods are predatory pelagic crustaceans that are particularly prevalent in high-latitude oceans. Many species are likely to have co-evolved with soft-bodied zooplankton groups such as salps and medusae, using them as substrate, for food, shelter or reproduction. Compared to other pelagic groups, such as fish, euphausiids and soft-bodied zooplankton, hyperiid amphipods are poorly studied especially in terms of their distribution and ecology. Hyperiids of the genus Themisto, comprising seven distinct species, are key players in temperate and cold-water pelagic ecosystems where they reach enormous levels of biomass. In these areas, they are important components of marine food webs, and they are major prey for many commercially important fish and squid stocks. In northern parts of the Southern Ocean, Themisto are so prevalent that they are considered to take on the role that Antarctic krill play further south. Nevertheless, although they are around the same size as krill, and may also occur in swarms, their feeding behaviour and mode of reproduction are completely different, hence their respective impacts on ecosystem structure differ. Themisto are major predators of meso- and macrozooplankton in several major oceanic regions covering shelves to open ocean from the polar regions to the subtropics. Based on a combination of published and unpublished occurrence data, we plot out the distributions of the seven species of Themisto. Further, we consider the different predators that rely on Themisto for a large fraction of their diet, demonstrating their major importance for higher trophic levels such as fish, seabirds and mammals. For instance, T. gaudichaudii in the Southern Ocean comprises a major part of the diets of around 80 different species of squid, fish, seabirds and marine mammals, while T. libellula in the Bering Sea and Greenland waters is a main prey item for commercially exploited fish species. We also consider the ongoing and predicted range expansions of Themisto species in light of environmental changes. In northern high latitudes, sub-Arctic Themisto species are replacing truly Arctic, ice-bound, species. In the Southern Ocean, a range expansion of T. gaudichaudii is expected as water masses warm, impacting higher trophic levels and biogeochemical cycles. We identify the many knowlegde gaps that must be filled in order to evaluate, monitor and predict the ecological shifts that will result from the changing patterns of distribution and abundance of this important pelagic group.
Author Listing: Charlotte Havermans;Holger Auel;Wilhelm Hagen;Christoph Held;Natalie S Ensor;Geraint A Tarling
Volume: 82
Pages: \n 51-92\n
DOI: 10.1016/BS.AMB.2019.02.002
Language: English
Journal: Advances in marine biology

Advances in Marine Biology

ADV MAR BIOL

影响因子:0.0 是否综述期刊:否 是否OA:否 是否预警:不在预警名单内 发行时间:1963 ISSN:0065-2881 发刊频率:Irregular 收录数据库:SCIE/Scopus收录 出版国家/地区:UNITED STATES 出版社:Academic Press Inc.

期刊介绍

Advances in Marine Biology was first published in 1963 under the founding editorship of Sir Frederick S. Russell, FRS. Now edited by Charles Sheppard, the serial publishes in-depth and up-to-date reviews on a wide range of topics which will appeal to postgraduates and researchers in marine biology, fisheries science, ecology, zoology and biological oceanography. Eclectic volumes in the series are supplemented by thematic volumes on such topics as The Biology of Calanoid Copepods.

《海洋生物学进展》于1963年首次出版,由弗雷德里克·S.罗素FRS该系列丛书现由Charles Sheppard编辑,就广泛的主题发表深入和最新的评论,将吸引海洋生物学、渔业科学、生态学、动物学和生物海洋学的研究生和研究人员。该系列中的折衷卷由关于虾脊类桡足类生物学等主题的主题卷补充。

年发文量 13
国人发稿量 1
国人发文占比 7.69%
自引率 0.0%
平均录取率 约50%
平均审稿周期 平均12月
版面费 -
偏重研究方向 MARINE & FRESHWATER BIOLOGY-
期刊官网 https://www.elsevier.com/books/book-series/advances-in-marine-biology
投稿链接 -

质量指标占比

研究类文章占比 OA被引用占比 撤稿占比 出版后修正文章占比
0.00% 0.00% - -

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