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Zooplankton community structure and dominant copepod population structure on the southern Kerguelen Plateau during summer 2016

Citation

Matsuno, K and Wallis, JR and Kawaguchi, S and Bestley, S and Swadling, KM, Zooplankton community structure and dominant copepod population structure on the southern Kerguelen Plateau during summer 2016, Deep-Sea Research. Part 2, 174 Article 104788. ISSN 0967-0645 (2020) [Refereed Article]

Copyright Statement

2020 Elsevier Ltd. All rights reserved.

DOI: doi:10.1016/j.dsr2.2020.104788

Abstract

The influence of environmental factors on the horizontal community structure of zooplankton over the southern Kerguelen Plateau was investigated during summer in 2016. Zooplankton abundance ranged from 1490 to 363,484 ind. 1000 m-3, with highest numbers observed in the eastern and central areas. Based on cluster analysis the zooplankton were divided into six groups (A−F), and these were only distinguished based on water masses and frontal systems. Groups A to C had abundant zooplankton and were consistent with areas of high chlorophyll a concentration. Group D represented low abundance near the southern Antarctic Circumpolar Current front, while group E was clustered south of the Southern Boundary and group F comprised two stations to the east of the Fawn Trough. Generalised linear model (GLM) highlighted both fronts and chlorophyll a concentration as drivers of overall zooplankton distribution. However, the population structures of key species were more likely a result of species-specific life cycles rather than water masses and frontal systems.

Item Details

Item Type:Refereed Article
Keywords:Southern Ocean, Kerguelen plateau, zooplankton, copepods, marine survey, Calanoides acutus, Calanus propinquus, Metridia gerlachei, Metridia lucens, Rhincalanus gigas, Fawn trough, Princess Elizabeth trough, BANZARE Bank
Research Division:Biological Sciences
Research Group:Ecology
Research Field:Marine and estuarine ecology (incl. marine ichthyology)
Objective Division:Environmental Management
Objective Group:Management of Antarctic and Southern Ocean environments
Objective Field:Biodiversity in Antarctic and Southern Ocean environments
UTAS Author:Matsuno, K (Dr Kohei Matsuno)
UTAS Author:Wallis, JR (Mr Jake Wallis)
UTAS Author:Kawaguchi, S (Dr So Kawaguchi)
UTAS Author:Bestley, S (Dr Sophie Bestley)
UTAS Author:Swadling, KM (Associate Professor Kerrie Swadling)
ID Code:139016
Year Published:2020
Deposited By:Ecology and Biodiversity
Deposited On:2020-05-21
Last Modified:2020-12-08
Downloads:0

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