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Diving Observations of Sub-Tidal Antarctic Marine Vegetation

Diving Observations of Sub-Tidal Antarctic Marine Vegetation Introduction The abrasive effects of ice effectively limit antarctic benthic Vegetation to the sub-tidal region, where collections have traditionally been made by dredge, Among the early dredge collections those made by SKOTTSBERG (1906, 1941) provided the first clear indication that there was, below the level of severe ice abrasion, a rieh growth of large plants. Unfortunately, the bulk o£ his collection was lost when the ship of the ill-fated Swedish Antarctic Expedition of 1901--1903 was sunk by pack ice. SKOTTSBERG, in discussing his Antarctic studies, mentioned the inadequacy of dredging and suggested that in future studies, a bathyscaphe or diving techniques might profitably be used. During the present study, 33 dives were made at various locations in western Antarctica. The longest time spent in the water observing and collecting algae was slightly over one hour, and the greatest depth to which dives were made was 20 meters. The abrasive action of floating ice was observed while diving, The specific equipment and techniques used are discussed fully elsewhere> NEUSHUL (1961). Plants collected were identified with previously described Antarctic taxa whenever possible; since a detailed taxonomic treatment, although sorely needed, PAPENFUSS 1964, was beyond the scope of the present study. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Botanica Marina de Gruyter

Diving Observations of Sub-Tidal Antarctic Marine Vegetation

NEUSHUL, M.
Botanica Marina , Volume 8 (2-4) – Jan 1, 1965
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References (1)

Publisher
de Gruyter
Copyright
Copyright © 2009 Walter de Gruyter
ISSN
0006-8055
eISSN
1437-4323
DOI
10.1515/botm.1965.8.2-4.234
Publisher site
See Article on Publisher Site

Abstract

Introduction The abrasive effects of ice effectively limit antarctic benthic Vegetation to the sub-tidal region, where collections have traditionally been made by dredge, Among the early dredge collections those made by SKOTTSBERG (1906, 1941) provided the first clear indication that there was, below the level of severe ice abrasion, a rieh growth of large plants. Unfortunately, the bulk o£ his collection was lost when the ship of the ill-fated Swedish Antarctic Expedition of 1901--1903 was sunk by pack ice. SKOTTSBERG, in discussing his Antarctic studies, mentioned the inadequacy of dredging and suggested that in future studies, a bathyscaphe or diving techniques might profitably be used. During the present study, 33 dives were made at various locations in western Antarctica. The longest time spent in the water observing and collecting algae was slightly over one hour, and the greatest depth to which dives were made was 20 meters. The abrasive action of floating ice was observed while diving, The specific equipment and techniques used are discussed fully elsewhere> NEUSHUL (1961). Plants collected were identified with previously described Antarctic taxa whenever possible; since a detailed taxonomic treatment, although sorely needed, PAPENFUSS 1964, was beyond the scope of the present study.

Journal

Botanica Marina – de Gruyter

Published: Jan 1, 1965

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