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Memorial University - Electronic Theses and Dissertations 1
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Document Description
TitleA numerical taxonomic study of cold ocean marine bacteria from the northwest Atlantic near Newfoundland
AuthorHollohan, Brendan Thomas
DescriptionThesis (M.Sc.)--Memorial University of Newfoundland, 1982. Biology
Paginationxiii, 223 leaves ; ill., maps
SubjectMarine bacteria--Northwest Atlantic Ocean; Marine bacteria--Newfoundland and Labrador
Degree GrantorMemorial University of Newfoundland. Dept. of Biology
Spatial CoverageNorthwest Atlantic Ocean
Canada--Newfoundland and Labrador
NotesBibliography : leaves 149-166
AbstractOne hundred and forty bacterial strains were isolated from two sources, giant scallop (Placopecten magellanicus) and seaweed (Alaria esculenta). The isolations from the seaweed were made on three successive occasions during the natural degradation of the fronds. Nine type strains from the genera Vibrio, Pseudomonas, Alteromonas, and Photobacterium were also included. Approximately 150 characterization tests were scored for each strain. All of the cold ocean strains were gram-negative, motile rods and required Na+ for growth. Approximately 60% were fermentative. The results of 112 tests were explored using cluster analysis and a variety of methods yielded six robust clusters. These clusters conformed largely to source of strains. The strains from A. esculenta clustered separately from those isolated from P. magellanicus. To some extent the clusters could be further distinguished as containing either oxidative or fermentative strains and, in the case of the seaweed isolates, by time of isolation, i.e., early or later in the degradation process. Tests which discriminated each cluster were identified. The predominant bacteria isolated were from the genera Vibrio, Pseudomonas and Alteromonas. Although some of the strains could be identified at the species level other could not. The latter strains may represent new species of marine bacteria.
Resource TypeElectronic resource or dissertation
FormatImage/jpg; Application/pdf
SourcePaper copy kept in the Centre for Newfoundland Studies, Memorial University Libraries
Local Identifier75216378
RightsThe author retains copyright ownership and moral rights in this thesis. Neither the thesis nor substantial extracts from it may be printed or otherwise reproduced without the author's permission.
CollectionElectronic Theses and Dissertations
Scanning StatusCompleted
PDF File(52.41 MB) --
CONTENTdm file name284722.cpd