Prof. Mark Gibbons

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https://hdl.handle.net/10566/1537

Prof. Mark Gibbons

Position: HOD
Department: Biodiversity and Conservation Biology Programme
Faculty: Faculty of Natural Science
Qualifications: BSc(Hons), PhD
Tel: 021 959 2475
Fax: 021 959 2312
Email: mgibbons@uwc.ac.za

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Browsing by Subject "Agulhas Bank"

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    Observations on euphausiid communities of the south coast of South Africa
    (NISC (Pty) Ltd and Taylor& Francis, 1995) Gibbons, Mark J.
    A total of 24 species of euphausiid was collected during a survey along the South African south coast during January 1992. Communities over the Agulhas Bank were of low diversity and abundance and were dominated by Nycliphanes capensis. Those at the shelf-edge were of high diversity and abundance and were dominated by Euphausia recurI'll and Thysalloessa gregaria. Such high diversity may be maintained by vertical scgregation at night. Few species displayed obvious diel vertical migration, although N. capen sis may be able to maintain itself on the shelf by means of this behaviour. E. recurl'Cl appeared to feed on phytoplankton throughout the water column at night, reflecting the distribution of food.