Meristic and morphometric variation among sardine Sardinops sagax around the coast of southern Africa

 

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dc.contributor.advisor Moloney, Coleen L en_ZA
dc.contributor.advisor Van der Lingen, Carl D en_ZA
dc.contributor.author Wessels, Grea en_ZA
dc.date.accessioned 2015-01-06T12:12:20Z
dc.date.available 2015-01-06T12:12:20Z
dc.date.issued 2009 en_ZA
dc.identifier.citation Wessels, G. 2009. Meristic and morphometric variation among sardine Sardinops sagax around the coast of southern Africa. University of Cape Town. en_ZA
dc.identifier.uri http://hdl.handle.net/11427/11575
dc.description Includes abstract. en_ZA
dc.description Includes bibliographical references (p. 72-81). en_ZA
dc.description.abstract Meristic counts and morphometric measurements were made on previously frozen sardine Sardinops sagax to determine whether there is a difference in the shape of sardine from different areas around southern Africa. Because freezing influences body size, eight different freezing periods were examined to determine the effects of freezing duration on the caudal length, weight and 21 morphometric measurements of sardine collected from commercial catches at Gans Bay and Saldanha Bay, South Africa. The relative weight loss of sardine ranged between 0.86 and 2.49% and the relative loss in caudal length ranged between 1.57 and 2.54%. Most of the morphometric measurements showed small changes with increasing freezing period and, if they decreased, the decrease was gradual. Samples for the morphometric study were frozen between 12 and 17 weeks before analysis. Independent sample t-tests between these freezing periods confirmed that there was no change in the morphometric measurements over this five week period. In total, 35 samples were collected from three main regions: Namibia, the South African west coast and the South African south and east coast. en_ZA
dc.language.iso eng en_ZA
dc.subject.other Applied Marine Science en_ZA
dc.title Meristic and morphometric variation among sardine Sardinops sagax around the coast of southern Africa en_ZA
dc.type Thesis / Dissertation en_ZA
uct.type.publication Research en_ZA
uct.type.resource Thesis en_ZA
dc.publisher.institution University of Cape Town
dc.publisher.faculty Faculty of Science en_ZA
dc.publisher.department Department of Oceanography en_ZA
dc.type.qualificationlevel Masters en_ZA
dc.type.qualificationname MSc en_ZA
uct.type.filetype Text
uct.type.filetype Image


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