Sympagic occurrence of Eusirid and Lysianassoid amphipods under Antarctic pack ice

Rupert H. Krapp; Jorgen Berge; Hauke Flores; Bjorn Gulliksen; Iris Werner

doi:10.1016/j.dsr2.2007.12.018

Sympagic occurrence of Eusirid and Lysianassoid amphipods under Antarctic pack ice

Rupert H. Krapp^*, Jorgen Berge, Hauke Flores, Bjorn Gulliksen, Iris Werner

^*Corresponding author for this work

Research output: Contribution to journal › Article › Academic › peer-review

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Abstract

During three Antarctic expeditions (2004, ANT XXI-4 and XXII-2; 2006, ANT XXIII-6) with the German research icebreaker R/V Polarstern, six different amphipod species were recorded under the pack ice of the Weddell Sea and the Lazarev Sea. These cruises covered Austral autumn (April), summer (December) and winter (August) situations, respectively. Five of the amphipod species recorded here belong to the family Eusiridae (Eusirus antarcticus, E. laticarpus, E. microps, E. perdentatus and E. tridentatus), while the last belongs to the Lysianassidea, genus Cheirimedon (cf. femoratus). Sampling was performed by a specially designed under-ice trawl in the Lazarev Sea, whereas in the Weddell Sea sampling was done by scuba divers and deployment of baited traps. In the Weddell Sea, individuals of E. antarcticus and E. tridentatus were repeatedly observed in situ during under-ice dives, and single individuals were even found in the infiltration layer. Also in aquarium observations, individuals of E. antarcticus and E tridentatus attached themselves readily to sea ice. Feeding experiments on E antarcticus and E. tridentatus indicated a carnivorous diet. Individuals of the Lysianassoid Cheirimedon were only collected in baited traps there. Repeated conventional zooplankton hauls performed in parallel to this study did not record any of these amphipods from the water column. In the Lazarev Sea, E. microps, E. perdentatus and E laticarpus were regularly found in under-ice trawls. We discuss the origin and possible sympagic life style of these amphipods. (C) 2008 Elsevier Ltd. All rights reserved.

Original language	English
Pages (from-to)	1015-1023
Number of pages	9
Journal	Deep-Sea research part ii-Topical studies in oceanography
Volume	55
Issue number	8-9
DOIs	https://doi.org/10.1016/j.dsr2.2007.12.018
Publication status	Published - 2008

Keywords

Antarctic
amphipods
under-ice fauna
sympagic
Weddell Sea
Lazarev Sea
SEA-ICE
WEDDELL SEA
PERDENTATUS CHEVREUX
COMMUNITY STRUCTURE
1912 CRUSTACEA
MCMURDO SOUND
MICRONEKTON
SHELF

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Sympagic occurrence of Eusirid and Lysianassoid amphipods under Antarctic
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(Tables 1-3) Amphipod species observed under Antarctic pack ice during POLARSTERN cruises ANT-XXI/4, ANT-XXII/2 and ANT-XXIII/6
Krapp, R. H. (Contributor), Berge, J. (Contributor), Flores, H. (Contributor), Gulliksen, B. (Contributor) & Werner, I. (Contributor), University of Groningen, 28-Jul-2008
DOI: 10.1594/PANGAEA.848503, https://doi.pangaea.de/10.1594/PANGAEA.848503
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title = "Sympagic occurrence of Eusirid and Lysianassoid amphipods under Antarctic pack ice",

abstract = "During three Antarctic expeditions (2004, ANT XXI-4 and XXII-2; 2006, ANT XXIII-6) with the German research icebreaker R/V Polarstern, six different amphipod species were recorded under the pack ice of the Weddell Sea and the Lazarev Sea. These cruises covered Austral autumn (April), summer (December) and winter (August) situations, respectively. Five of the amphipod species recorded here belong to the family Eusiridae (Eusirus antarcticus, E. laticarpus, E. microps, E. perdentatus and E. tridentatus), while the last belongs to the Lysianassidea, genus Cheirimedon (cf. femoratus). Sampling was performed by a specially designed under-ice trawl in the Lazarev Sea, whereas in the Weddell Sea sampling was done by scuba divers and deployment of baited traps. In the Weddell Sea, individuals of E. antarcticus and E. tridentatus were repeatedly observed in situ during under-ice dives, and single individuals were even found in the infiltration layer. Also in aquarium observations, individuals of E. antarcticus and E tridentatus attached themselves readily to sea ice. Feeding experiments on E antarcticus and E. tridentatus indicated a carnivorous diet. Individuals of the Lysianassoid Cheirimedon were only collected in baited traps there. Repeated conventional zooplankton hauls performed in parallel to this study did not record any of these amphipods from the water column. In the Lazarev Sea, E. microps, E. perdentatus and E laticarpus were regularly found in under-ice trawls. We discuss the origin and possible sympagic life style of these amphipods. (C) 2008 Elsevier Ltd. All rights reserved.",

keywords = "Antarctic, amphipods, under-ice fauna, sympagic, Weddell Sea, Lazarev Sea, SEA-ICE, WEDDELL SEA, PERDENTATUS CHEVREUX, COMMUNITY STRUCTURE, 1912 CRUSTACEA, MCMURDO SOUND, MICRONEKTON, SHELF",

author = "Krapp, {Rupert H.} and Jorgen Berge and Hauke Flores and Bjorn Gulliksen and Iris Werner",

year = "2008",

doi = "10.1016/j.dsr2.2007.12.018",

language = "English",

volume = "55",

pages = "1015--1023",

journal = "Deep Sea Research Part II: Topical Studies in Oceanography",

issn = "0967-0645",

publisher = "PERGAMON-ELSEVIER SCIENCE LTD",

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TY - JOUR

T1 - Sympagic occurrence of Eusirid and Lysianassoid amphipods under Antarctic pack ice

AU - Krapp, Rupert H.

AU - Berge, Jorgen

AU - Flores, Hauke

AU - Gulliksen, Bjorn

AU - Werner, Iris

PY - 2008

Y1 - 2008

N2 - During three Antarctic expeditions (2004, ANT XXI-4 and XXII-2; 2006, ANT XXIII-6) with the German research icebreaker R/V Polarstern, six different amphipod species were recorded under the pack ice of the Weddell Sea and the Lazarev Sea. These cruises covered Austral autumn (April), summer (December) and winter (August) situations, respectively. Five of the amphipod species recorded here belong to the family Eusiridae (Eusirus antarcticus, E. laticarpus, E. microps, E. perdentatus and E. tridentatus), while the last belongs to the Lysianassidea, genus Cheirimedon (cf. femoratus). Sampling was performed by a specially designed under-ice trawl in the Lazarev Sea, whereas in the Weddell Sea sampling was done by scuba divers and deployment of baited traps. In the Weddell Sea, individuals of E. antarcticus and E. tridentatus were repeatedly observed in situ during under-ice dives, and single individuals were even found in the infiltration layer. Also in aquarium observations, individuals of E. antarcticus and E tridentatus attached themselves readily to sea ice. Feeding experiments on E antarcticus and E. tridentatus indicated a carnivorous diet. Individuals of the Lysianassoid Cheirimedon were only collected in baited traps there. Repeated conventional zooplankton hauls performed in parallel to this study did not record any of these amphipods from the water column. In the Lazarev Sea, E. microps, E. perdentatus and E laticarpus were regularly found in under-ice trawls. We discuss the origin and possible sympagic life style of these amphipods. (C) 2008 Elsevier Ltd. All rights reserved.

AB - During three Antarctic expeditions (2004, ANT XXI-4 and XXII-2; 2006, ANT XXIII-6) with the German research icebreaker R/V Polarstern, six different amphipod species were recorded under the pack ice of the Weddell Sea and the Lazarev Sea. These cruises covered Austral autumn (April), summer (December) and winter (August) situations, respectively. Five of the amphipod species recorded here belong to the family Eusiridae (Eusirus antarcticus, E. laticarpus, E. microps, E. perdentatus and E. tridentatus), while the last belongs to the Lysianassidea, genus Cheirimedon (cf. femoratus). Sampling was performed by a specially designed under-ice trawl in the Lazarev Sea, whereas in the Weddell Sea sampling was done by scuba divers and deployment of baited traps. In the Weddell Sea, individuals of E. antarcticus and E. tridentatus were repeatedly observed in situ during under-ice dives, and single individuals were even found in the infiltration layer. Also in aquarium observations, individuals of E. antarcticus and E tridentatus attached themselves readily to sea ice. Feeding experiments on E antarcticus and E. tridentatus indicated a carnivorous diet. Individuals of the Lysianassoid Cheirimedon were only collected in baited traps there. Repeated conventional zooplankton hauls performed in parallel to this study did not record any of these amphipods from the water column. In the Lazarev Sea, E. microps, E. perdentatus and E laticarpus were regularly found in under-ice trawls. We discuss the origin and possible sympagic life style of these amphipods. (C) 2008 Elsevier Ltd. All rights reserved.

KW - Antarctic

KW - amphipods

KW - under-ice fauna

KW - sympagic

KW - Weddell Sea

KW - Lazarev Sea

KW - SEA-ICE

KW - WEDDELL SEA

KW - PERDENTATUS CHEVREUX

KW - COMMUNITY STRUCTURE

KW - 1912 CRUSTACEA

KW - MCMURDO SOUND

KW - MICRONEKTON

KW - SHELF

U2 - 10.1016/j.dsr2.2007.12.018

DO - 10.1016/j.dsr2.2007.12.018

M3 - Article

SN - 0967-0645

VL - 55

SP - 1015

EP - 1023

JO - Deep Sea Research Part II: Topical Studies in Oceanography

JF - Deep Sea Research Part II: Topical Studies in Oceanography

IS - 8-9

ER -

Sympagic occurrence of Eusirid and Lysianassoid amphipods under Antarctic pack ice

Abstract

Keywords

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Datasets

(Tables 1-3) Amphipod species observed under Antarctic pack ice during POLARSTERN cruises ANT-XXI/4, ANT-XXII/2 and ANT-XXIII/6

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