https://commons.ufh.ac.za/vital/access/manager/Index ${session.getAttribute("locale")} 5 An Assessment of the Effect of Rotenone on Selected Non-Target Aquatic Fauna: Reflections on Henri Lefebre, Urban Theory and the Politics of Scale https://commons.ufh.ac.za/vital/access/manager/Repository/vital:29654 Wed 12 May 2021 19:28:16 SAST ]]> Spatio-temporal variation in the phytobenthos and phytoplankton community structure and composition of particulate matter along a river-estuary continuum assessed using microscopic and stable isotope analyses https://commons.ufh.ac.za/vital/access/manager/Repository/vital:26563 50 %) in the upper to middle reaches (river), but low (< 20 %) in the lower reaches (estuary). The current investigation represents the first attempt to assess the validity of the River Continuum Concept (RCC) in a southern African temperate river. The phytoplankton and phytobenthos communities, and chl-a concentration followed a trend similar to that proposed for the river continuum concept (RCC). The middle reaches based on the phytobenthos or phytoplankton communities and chl-a concentrations which were employed as proxies for primary production, were the most productive, while the upper reaches were the least primary productive. The evaluation of organic matter contributions to the SPM and detritus along the river–estuary continuum provided a baseline assessment of the nature and sources of potential food for consumers inhabiting different locations during different times of the year. Incorporating such spatio-temporal variations in SPM and detritus into food web studies will improve our understanding of the flow of carbon through aquatic systems.]]> Wed 12 May 2021 15:56:40 SAST ]]> Nutrient release dynamics associated with native and invasive leaf litter decomposition: a Mesocosm Experiment https://commons.ufh.ac.za/vital/access/manager/Repository/vital:40448 Wed 12 May 2021 13:48:00 SAST ]]> Using multivariate analysis and stable isotopes to assess the effects of substrate type on phytobenthos communities https://commons.ufh.ac.za/vital/access/manager/Repository/vital:29201 Thu 25 Apr 2024 15:39:34 SAST ]]> Colonisation and community structure of benthic diatoms on artificial substrates following a major flood event: a case of the Kowie River (Eastern Cape, South Africa) https://commons.ufh.ac.za/vital/access/manager/Repository/vital:38239 Thu 25 Apr 2024 15:35:23 SAST ]]> Can δ15N and δ13C stable isotopes and fatty acid signatures indicate changes in phytobenthos composition on an artificial substrate? https://commons.ufh.ac.za/vital/access/manager/Repository/vital:29197 Thu 25 Apr 2024 15:34:48 SAST ]]> Assessment of the spatial and temporal variations in periphyton communities along a small temperate river system: A multimetric and stable isotope analysis approach https://commons.ufh.ac.za/vital/access/manager/Repository/vital:35580 Thu 25 Apr 2024 15:31:54 SAST ]]> An assessment of the effect of rotenone on selected non-target aquatic fauna: https://commons.ufh.ac.za/vital/access/manager/Repository/vital:38214 Thu 25 Apr 2024 15:31:16 SAST ]]> An assessment of chlorophyll-a concentration spatio-temporal variation using Landsat satellite data, in a small tropical reservoir https://commons.ufh.ac.za/vital/access/manager/Repository/vital:29189 Thu 25 Apr 2024 15:30:33 SAST ]]> A re-examination of the type material of Entomoneis paludosa (W Smith) Reimer and its morphology and distribution in African waters https://commons.ufh.ac.za/vital/access/manager/Repository/vital:29440 Thu 25 Apr 2024 15:29:57 SAST ]]> Trophic interactions in an austral temperate ephemeral pond inferred using stable isotope analysis https://commons.ufh.ac.za/vital/access/manager/Repository/vital:29185 Thu 25 Apr 2024 15:28:30 SAST ]]> Nature and source of suspended particulate matter and detritus along an austral temperate river–estuary continuum, assessed using stable isotope analysis https://commons.ufh.ac.za/vital/access/manager/Repository/vital:29181 Thu 25 Apr 2024 15:27:50 SAST ]]> Emergent effects of structural complexity and temperature on predator–prey interactions https://commons.ufh.ac.za/vital/access/manager/Repository/vital:29444 Thu 25 Apr 2024 15:27:03 SAST ]]> Effects of substrate on essential fatty acids produced by phytobenthos in an austral temperate river system https://commons.ufh.ac.za/vital/access/manager/Repository/vital:29179 Thu 25 Apr 2024 15:25:22 SAST ]]> Distribution of benthic diatom communities in a permanently open temperate estuary in relation to physico-chemical variables https://commons.ufh.ac.za/vital/access/manager/Repository/vital:29172 Thu 25 Apr 2024 15:24:26 SAST ]]> Diatom-based water quality monitoring in southern Africa: challenges and future prospects https://commons.ufh.ac.za/vital/access/manager/Repository/vital:35590 Thu 25 Apr 2024 15:22:38 SAST ]]> Assessment of water quality based on diatom indices in a small temperate river system, Kowie River, South Africa https://commons.ufh.ac.za/vital/access/manager/Repository/vital:35514 0.05) between the diatom indices’ values and the nutrient variables. The absence of any significant correlations between the diatom indices’ values and selected physico-chemical variables suggests that indices developed in other regions of the world may not be suitable for temperate southern African rivers.]]> Thu 25 Apr 2024 15:20:17 SAST ]]> Fish predation regimes modify benthic diatom community structures: experimental evidence from an in situ mesocosm study https://commons.ufh.ac.za/vital/access/manager/Repository/vital:29190 Thu 25 Apr 2024 15:15:10 SAST ]]> Examining intraspecific multiple predator effects across shifting predator sex ratios: https://commons.ufh.ac.za/vital/access/manager/Repository/vital:38941 Thu 25 Apr 2024 15:09:26 SAST ]]> Influence of land cover, proximity to streams and household topographical location on flooding impact in informal settlements in the Eastern Cape, South Africa https://commons.ufh.ac.za/vital/access/manager/Repository/vital:43799 Mon 08 Aug 2022 09:12:14 SAST ]]> An Assessment of the Effect of Rotenone on Selected Non-Target Aquatic Fauna https://commons.ufh.ac.za/vital/access/manager/Repository/vital:35579 Fri 26 Apr 2024 12:24:46 SAST ]]> Influence of intra-and interspecific variation in predator–prey body size ratios on trophic interaction strengths: https://commons.ufh.ac.za/vital/access/manager/Repository/vital:38839 Fri 26 Apr 2024 12:23:21 SAST ]]> Deeper knowledge of shallow waters: reviewing the invertebrate fauna of southern African temporary wetlands https://commons.ufh.ac.za/vital/access/manager/Repository/vital:37918 Fri 26 Apr 2024 11:13:21 SAST ]]>