A5046460544- Fish Biology and Ecology Studies
- Aquatic Ecosystems and Biodiversity
- Fish Ecology and Management Studies
- Fish biology, ecology, and behavior
- Ichthyology and Marine Biology
- Microplastics and Plastic Pollution
- Marine Ecology and Invasive Species
- Aquatic Ecosystems and Phytoplankton Dynamics
- Reproductive biology and impacts on aquatic species
- Wildlife Ecology and Conservation
- Animal Behavior and Reproduction
- Plant and animal studies
- Coral and Marine Ecosystems Studies
- Recycling and Waste Management Techniques
- Marine and fisheries research
- Evolutionary Game Theory and Cooperation
- Coastal and Marine Management
- Water Quality Monitoring Technologies
- Isotope Analysis in Ecology
- Marine Biology and Environmental Chemistry
- Urban and Rural Development Challenges
- Marine and Offshore Engineering Studies
- Amphibian and Reptile Biology
- Parasite Biology and Host Interactions
Waste
2019
South African Institute for Aquatic Biodiversity
2008
Rhodes University
1972-1998
Smith Institute
1985-1986
University of Cape Town
1971
Most aquarium fishes exported from Lake Malawi are cichlids of 10 rock-frequenting genera collectively referred to by their Chitonga name, Mbuna. These provide a classical example intralacustrine allopatric speciation. The distribution 196 species is given with notes on habitat preferenda, depth and behaviour. Considerable emphasis placed coloration markings for identification it argued that they important mate recognition. Brief some the other rocky shore particularly in genus Cyrtocara....
In recent years, there has been a tremendous increase in work that focuses on the amount and types of waste entering marine environment from multiple geographies around world. To date, however, are few reports about scale coastal oceanic waters Africa. address this knowledge gap, existing information was collated mismanagement can become debris Africa at continental scale. This paper identifying sources seeking solutions to mismanagement. Stories shared opportunities have arisen taking place...
Lake Malawi's fishes are a source of food for millions and provide livelihood thousands by encouraging tourism, fascinating the scientific fraternity, enchanting aquarists around world maintaining ecosystem processes in lake. From fisheries resource assessment perspective, region is data-poor, but there sufficient peer-reviewed grey literature on limnology, ichthyofauna lake to good overview state fishery. There signs over exploitation an increasing fishing effort has resulted decreased...
The existence of ancient deep-water lakes provides an opportunity to study the independent adaptation aquatic organisms pelagic, benthic, and rocky shore habitats. With improving resolution their phylogenetic relationships, many cichlid fish species endemic African Great Lakes Malawi, Tanganyika, Victoria provide a significant resource for comparative such evolutionary processes. Here, we show that lineages colonizing shores pelagic habitats in different have independently evolved larger...
AbstractThe number of species cichlid found to host foreign offspring in mixed broods Lake Malawi is much greater than originally supposed. It suggested that all which show well developed parental behaviour may have fry mix with their on occasion. A variety were broods. These come from two categories fish: those apparently do not guard free swimming fry; and a entrenched phase protective care. Although substrate spawners encourage other join it argued young are unwelcome guests...
The endemic Lake Malawi cichlid, Petrotilapia tridentiger Trewavas, was found to be a complex of sibling species. various sympatric species show considerable homogeneity in body form and dentition but are separable on the basis differences adult coloration, size at maturity, depth distribution, degree overlap territories, aggression courtship. Colour is considered important for specific mate recognition this genus. Examination wild populations valuable, perhaps essential, adjunct classical...
Ministry of Foreign Affairs, Norway Western Indian Ocean Marine Science Association (WIOMSA)
Two species of Labeotropheus are currently recognized, but an earlier study aquarium specimens caused doubt to be cast upon their specific distinctness. This was removed by a field and laboratory which showed that L. fuelleborni differed from trewavasae morphologically, in coloration, geographic distribution, preferred habitat ability penetrate depth. The two practise assortative mating. Labeotropheus feeds predominantly upper surfaces rocks while favours under surfaces. Although both...
Towards a Low Carbon City: Focus on Durban, by Academy of Science South Africa. 2011. Pretoria, Price: Free. Pp. 265. Online: http://www.assaf.org.za/2011/08/...
The cichlid Melanochromis exasperatus has a natural distribution which is restricted to single island in Lake Malawi, Africa. Diving observations indicated that it does not occur below 4.5 m depth. Measurements of depth equilibration pressure tank showed males can equilibrate 25 and females 18 m. Mean maximum sustained rate was 2 day −1 . M. survived decrease 40% every 12 h from the surface. fish swim actively during but rest on bottom at night when they are equilibrated 1 deeper than...
Adult Docimodus evelynae feed upon scales, skin and fins of other fishes. Juveniles mainly on Aufwuchs plankton, but small individuals (less than 50 mm SL) also clean fungi from cichlids. The change juvenile to adult diet takes place when are between 60-80 SL. At this stage dentition alters: tricuspid teeth replaced by unicuspid teeth. D. lives in predominantly rocky habitats where it occurs the extreme shallows depths at least 91 m. Field observations indicated that can tolerate marked...
Temporal diet patterns were studied for nine species of haplochromine cichlids in Lake Malawi, East Africa, using a combination stable isotope and stomach content analyses. The results illustrate the complementarity two approaches elucidating dietary differences. Evidence was found that benthic algal production contributed to energy requirements offshore fishes occupy depths between 10 30 m. importance lake fly Chaoborus edulis as food source demersal confirmed, supporting recent hypothesis...