Morphology and chemical composition of a natural population of an ice-associated Antarctic diatom Navicula glacei
Whitaker, Terence M.; Richardson, Michael G.. 1980 Morphology and chemical composition of a natural population of an ice-associated Antarctic diatom Navicula glacei. Journal of Phycology, 16 (2). 250-257. https://doi.org/10.1111/j.1529-8817.1980.tb03027.x
Full text not available from this repository. (Request a copy)Abstract/Summary
During winter (1973), a very pure natural population of the diatom Navicula glaciei Van Heurck occurred in dense concentrations (up to 244 mg·m−2 chlorophyll a) in the sea ice at Signy Island, South Orkneys, Antarctica. Samples of algal material were collected for subsequent chemical analysis. The diatom had a composition of 33.77% ash, 21.81% lipid, 25.38% crude, protein, 19.04% crude carbohydrate and an intact calorific value of 15.384 KJ·g−1. Carbon, hydrogen, nitrogen and phosphorus formed 34, 5.3, 4.1 and 0.52% dry wt respectively. The material was analysed for the trace elements Na, K, Fe, Ca, Mg, Al, Zn, Cu, Pb, Mn, 137Cs. Fatty acid composition was dominated by 16:0 palmitic acid (20.46%), 16:1 palmitoleic acid (32.86%), and 20:5 docosahexaenoic acid (19.33%). To supplement a very scanty original description, a full taxonomic description is given in the text.
Item Type: | Publication - Article |
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Digital Object Identifier (DOI): | https://doi.org/10.1111/j.1529-8817.1980.tb03027.x |
ISSN: | 0022-3646 |
Additional Keywords: | Antarctic diatom, chemical composition, diatom, ice-associated diatom, Navicula |
Date made live: | 11 Sep 2019 11:03 +0 (UTC) |
URI: | https://nora.nerc.ac.uk/id/eprint/525066 |
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