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Now showing items 121-130 of 131
Re-descriptions of some southern African Scyphozoa: out with the old and in with the new
(University of the Western Cape, 2009)
Two species of Chrysaora are described from the northern Benguela ecosystem: C. fulgida and C. africana. These species can be diagnosed by a combination of morphological features including lappet and tentacle number, shape ...
The water quality and ecological status of the Diep river catchment, Western Cape, South Africa
(University of Western Cape, 2004)
The study illustrates the current ecological integrity of the Diep River system,
based on the recent river health assessment using the South African Scoring
System version 5 (2000-2003) and the water quality data ...
Species delimitation and assessment of genetic variability in Carpobrotus (Aizoaceae): evidence from amplified fragment length polymorphisms
(University of the Western Cape, 2004)
During the course of this thesis, AFLP technique was successfully applied to the Aizoaceae taxa. This study involved a substantial component of laboratory work including generating and analysing AFLP data, the operation ...
Interannual changes in abundance and distribution of jellyfish along the west coast of South Africa
(University of the Western Cape, 2015)
Hydromedusae are mostly carnivorous planktivores that under ideal conditions can reproduce and accumulate to form dense masses of jellyfish, known as blooms. These jellyfish blooms may have various impacts on their surrounding ...
Spatia-temporal dynamics in land use and habitat fragmentation in the Sandveld, South Africa
(University of the Western Cape, 2010)
The Cape Floristic Region (CFR) in South Africa, is one of the world's five Mediterranean hotspots, and is also one of the 34 global biodiversity hotspots. It has rich biological diversity, high level of species endemism ...
Applying a lagrangian trajectory model to investigate and describe the distribution of drifting ecklonia maxima within the benguela upwelling system
(University of the Western Cape, 2023)
Macroalgal morphological variation is determined to a large extent by a combination of environmental factors, with wave exposure and temperature perhaps the main influences, as they are key environmental properties to which ...
The reproductive physiology of The south african pilchard.
(UWC, 1995)
Epipelagic fish species form an integral component of the world's supply of protein. The most abundant of these fish belong to the order Clupeiformes (clupeoids) which include sardine, pilchard, sardinella, sprat, and ...
Temporal and spatial variability in copepod abundance, distribution and community structure off Walvis Bay in the northern Benguela Current, 1979-1981
(University of the Western Cape, 2005)
The zooplankton samples used for retrospective analysis in this study form part of the historical SWAPELS (South West African Pelagic Egg and Larva Survey) collection from January 1972 to December 1989, which covered the ...
Reptile community responses to an avian ecosystem engineer
(University of the Western Cape, 2023)
In the Kalahari, sociable weavers (Philetairus socius) build huge, communal nests. Although Kalahari tree skinks (Trachylepis spilogaster) are known to preferentially use trees that host such colonies, the degree to which ...
The roles of intertidal marine gastropod shells as secondary substrate for macroalgae
(University of the Western Cape, 2014)
Primary space within the marine benthos is by far the most limited resource for which all sessile organisms must compete. It only ever becomes available when the organisms occupying it dies or are forced to leave the area. ...