Ecological Studies in the Antarctic Sea Ice Zone: Results of EASIZ Midterm Symposium

Overview

Until comparatively recently, the remoteness, inaccessibility, and extreme climate have meant that the vast pack-ice zone around the Antarctic continent was one of the least-known marine ecosystems on Earth. Myths and speculations prevailed in the literature, often derived from an anthropocentric way of thinking that considered the sea-ice environment as predominantly hostile to marine life. This picture has changed drastically now as a result of a series of international efforts, the most recent of which has ...

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Overview

Until comparatively recently, the remoteness, inaccessibility, and extreme climate have meant that the vast pack-ice zone around the Antarctic continent was one of the least-known marine ecosystems on Earth. Myths and speculations prevailed in the literature, often derived from an anthropocentric way of thinking that considered the sea-ice environment as predominantly hostile to marine life. This picture has changed drastically now as a result of a series of international efforts, the most recent of which has been the highly successful EASIZ (Ecology of the Antarctic Sea Ice Zone) programme of the Scientific Council on Antarctic Research (SCAR). Focusing, in contrast to other international programmes, on life at the seafloor, EASIZ has attempted to link processes in the three major marine subsystems (sea ice, pelagic and benthic) within the pack-ice zone. Work has been carried out from both research ships and shore-based research stations. This work included organisms ranging in size from bacteria to seals and covered topics as diverse as biodiversity, iceberg scour, pelagobenthic coupling, autecology, and ecophysiology. Consequently, we now view the sea-ice zone as a rich system with highly adapted organisms, considerable natural disturbance from ice, low resilience and of great potential importance as an indicator for climate change.

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Product Details

  • ISBN-13: 9783642639739
  • Publisher: Springer Berlin Heidelberg
  • Publication date: 12/31/2013
  • Edition description: Softcover reprint of the original 1st ed. 2002
  • Pages: 277
  • Product dimensions: 8.50 (w) x 11.00 (h) x 0.64 (d)

Table of Contents

Antarctic marine benthic biodiversity in a world-wide latitudinal context 1
New species of benthopelagic hydromedusae from the Weddell Sea 10
A study on octopodids from the eastern Weddell Sea, Antarctica 17
Diversity of reproductive features in some Antarctic polynoid and sabellid polychaetes, with a description of Demonax polarsterni sp. n. (Polychaeta, Sabellidae) 24
Deep-sea polychaetes in the Weddell Sea and Drake Passage: first quantitative results 33
Great differences in peracarid crustacean density between the Arctic and Antarctic deep sea 40
Potential impact of the main benthic amphipods on the eastern Weddell Sea shelf ecosystem (Antarctica) 45
Diversity of epibenthic habitats of gammaridean amphipods in the eastern Weddell Sea 51
No evidence for slow-down of molecular substitution rates at subzero temperatures in Antarctic serolid isopods (Crustacea, Isopoda, Serolidae) 61
Microscopic anatomy and ultrastructure of the digestive system of three Antarctic shrimps (Crustacea: Decapoda: Caridea) 66
Synopsis of the pycnogonids from Antarctic and Subantarctic waters 77
Cytogenetics of the bathydraconid fish Gymnodraco acuticeps (Perciformes, Notothenioidei) from Terra Nova Bay, Ross Sea 82
Seasonal fluctuations of vagile benthos in the uppermost sublittoral of a maritime Antarctic fjord 89
Assemblages of necrophagous animals off Enderby land, East Antarctica 97
Are Antarctic suspension-feeding communities different from those elsewhere in the world? 104
Primary production, light and vertical mixing in Potter Cove, a shallow bay in the maritime Antarctic 117
Land forcing controls pelagic-benthic coupling in Adelie Cove (Terra Nova Bay, Ross Sea) 125
Fluxes and composition of settling particles during summer in an Antarctic shallow bay of Livingston Island, South Shetlands 133
Feeding strategies and diet composition of four Antarctic cnidarian species 140
Foraging behaviour of Weddell seals, and its ecological implications 148
On the direct impact of ice on marine benthic communities, a review 157
Biogeochemistry of platelet ice: its influence on particle flux under fast ice in the Weddell Sea, Antarctica 169
Meiofauna in sea ice of the Weddell Sea (Antarctica) 180
In situ oxygen microelectrode measurements of bottom-ice algal production in McMurdo Sound, Antarctica 185
Recolonisation of meiofauna after catastrophic iceberg scouring in shallow Antarctic sediments 194
Meiofauna response to iceberg disturbance on the Antarctic continental shelf at Kapp Norvegia (Weddell Sea) 202
Quantification of iceberg impact and benthic recolonisation patterns in the Weddell Sea (Antarctica) 210
The role of iceberg scours in niche separation within the Antarctic fish genus Trematomus
Ecophysiology of Antarctic marine ectotherms: limits to life 221
Acclimation of photosynthesis and pigments to seasonally changing light conditions in the endemic Antarctic red macroalga Palmaria decipiens 231
Effects of solar radiation on growth and mycosporine-like amino acids content in Thalassiosira sp., Antarctic diatom 237
Distribution patterns of decapod crustaceans in polar areas: A result of magnesium regulation? 246
Occurrence of the autofluorescent pigment, lipofuscin, in polar crustaceans and its potential as an age marker 251
Production and respiration of Antarctic ascidians 259
Temperature-dependant pH regulation in stenothermal Antarctic and eurythermal temperate eelpout (Zoarcidae): an in-vivo NMR study 266
List of Referees 273
Subject Index 275
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