Call number:
ZSP-201-80/16
In:
CRREL Report, 80-16
Description / Table of Contents:
Eight species of loricate choanoflagellates (Acanthoccidae), Acanthoecopsis spiculifera, Bicosta spinifera, Bicosta antennigera, Callicantha simplex, Calliacantha multispina aff., Crinolina aperta, Diaphanoeca multionnulata, and Parvicorbicula socialis, were observed in samples obtained from the Weddell Sea during the austral summer, 1977. D. multiannulata was described for the first time from these samples; the other organisms have either been described previously or are being described at this time. The distribution of most species within the Weddell Sea was widespread. The distributional, environmental, and morphological range of A. spiculifera, B. spinifera, C. aperta, and P. socialis was expanded. Habitats in which choanoflagellates were found included the water column, the edges of ice floes, ponds on ice floes, and the interiors of ice floes. The presence of choanoflagellates within the ice indicates that there may be a closely coupled trophic relationship with the other two biological components of the ice community, the ice algae and the bacteria. The presence in the ice of seven species with both a caudal appendage and anterior projections suggests a positive relationship between this lorica configuration and the ice habitat. Mechanisms of variance of transverse costal diameters between genera may be useful to the taxonomy and phylogeny of this family.
Type of Medium:
Series available for loan
Pages:
vi, 26 Seiten
,
Illustrationen
Series Statement:
CRREL Report 80-16
URL:
https://apps.dtic.mil/sti/citations/ADA090680
Language:
English
Note:
CONTENTS
Introduction
Literature review
Objectives
Materials and methods
Results
Observations
Distribution and environmental tolerances
Discussion
Morphology
Distribution
Habitat
Summary
Conclusions
Recommendations for future work
Literature cited
Appendix A Type descriptions of Acanthoecidae collected from the Weddell Sea
Location:
AWI Archive
Branch Library:
AWI Library
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