• Publications
  • Influence
Integrating stomach content and stable isotope analyses to elucidate the feeding habits of non-native sharptooth catfish Clarias gariepinus
TLDR
High dietary overlap suggests the potential risk associated catfish feeding, especially the potential of piscivory by small catfish that are more likely to persist in shallow and marginal where endangered indigenous minnows occur. Expand
Stream fish assemblages in relation to environmental factors on a montane plateau (Nyika Plateau, Malawi)
TLDR
This study is one of the first to examine the stream fish assemblages on the Nyika Plateau in northern Malawi and among these was Hippopotamyrus ansorgii, the first collection of this species in the Lake Malawi catchment. Expand
Benthic diatom assemblages in mountain streams: community structure in relation to environmental and human pressures
The objective of this study was to determine the environmental factors that best explain the distribution and community composition of benthic diatoms in undisturbed mountain streams in the EasternExpand
Movement patterns and habitat selection of invasive African sharptooth catfish
TLDR
Non-random habitat use and homing behaviour within single and multiple habitats by non-native sharptooth catfish suggests that its impact within the invaded habitats may be associated with particular habitats both at broad spatial and temporal scales. Expand
The impact of non-native rainbow trout within Afro-montane streams in eastern Zimbabwe
TLDR
By influencing distribution and abundance of native biota, non-native rainbow trout may have wider ecological effects, such as influencing trophic interrelationships within invaded habitats, and that the macro-invertebrate communities responded differently within invaded and non-invaded reaches. Expand
AN INVADER WITHIN AN ALTERED LANDSCAPE: ONE CATFISH, TWO RIVERS AND AN INTER‐BASIN WATER TRANSFER SCHEME
TLDR
Comparisons of trophic niches provided information on the proliferation of catfish and its probable impact within the mainstream flow-altered habitats where invasion resistance was possibly reduced, and an upstream to downstream continuum in community structure and resource availability. Expand
Detecting impacts of invasive non-native sharptooth catfish, Clarias gariepinus, within invaded and non-invaded rivers
TLDR
It is suggested that within invaded habitats, macroinvertebrates were less responsive to catfish presence, whereas catfish introduction within uninvaded habitats demonstrated invasion impact that was shown by a decrease in the abundance of vulnerable taxa. Expand
Spatial and temporal variation of fish assemblage in two intermittent streams in north-western Zimbabwe
TLDR
Refuge availability during the dry period appeared to be essential for the assemblage of the intermittent streams, and protection of these temporal habitats is therefore important in conserving fish assemblages within intermittent streams of the Lake Kariba area. Expand
Swimming with the giant: coexistence patterns of a new redfin minnow Pseudobarbus skeltoni from a global biodiversity hot spot
TLDR
This study suggests that coexistence of these fishes appears to be promoted by their differences in niche adaptation mechanisms that are probably shaped by historic evolutionary and ecological processes. Expand
...
1
2
3
4
...