The cichlids of East Africa are renowned as one of the most spectacular examples of adaptive radiation. They provide a unique opportunity to investigate the relationships between ecology, morphological diversity, and phylogeny in producing such remarkable diversity. Nevertheless, the parameters of the adaptive radiations of these fish have not been satisfactorily quantified yet. Lake Tanganyika...

Five neighbouring populations of a cichlid fish from Lake Malawi differ in male courtship colour. Females show strong mate preferences for male coloration from their own populations. This suggests that sexual selection is an important factor contributing to speciation in cichlids.

This article focuses on the function of the convict prison infirmary and views it as a site of arbitration, resistance and 'contested power'. In accordance with the rules and regulations periods of incarceration in convict prisons began and ended with an obligatory medical examination. While the primary function of the initial test was to measure the convict body in order ascertain physical abi...

This study aims to evaluate the effects of adding salt to water on the physiological parameters of the blood parrot cichlid (Cichlasoma synspilum ♀ × Cichlasoma citrinellum ♂). The blood parrot cichlid is a popular species in the aquarium trade because of its behaviour and beauty. Salt is usually added to water during the culture or transportation of this fish. However, the manner by which the ...

23 The African Great Lakes are characterized by an extraordinary diversity of endemic cichlid 24 fish species. The cause of this diversity is still largely unknown. Most studies have tried to 25 solve this question by focusing on macro-evolutionary processes, such as speciation. 26 However, the ecological processes determining local cichlid diversity have so far been 27 understudied, even thoug...

Sex determination mechanisms are highly variable across teleost fishes and sexual development is often plastic. Nevertheless, downstream factors establishing the two sexes are presumably conserved. Here, we study sequence evolution and gene expression of core genes of sexual development in a prime model system in evolutionary biology, the East African cichlid fishes. Using the available five ci...

New South Wales was a convict society forfillly halfitsJirst century. Its archaeology reflects the evolution of penal systems and the practices of corzvictism. The archaeology also shows that convicts were closely integrated into the structure of society and were critical to its econonzic performance and social composition. Archaeological investigation in the areas of convict life, penal instit...

The polychromatic and trophically polymorphic Midas cichlid fish species complex (Amphilophus cf. citrinellus) is an excellent model system for studying the mechanisms of speciation and patterns of phenotypic diversification in allopatry and in sympatry. Here, we first review research to date on the species complex and the geological history of its habitat. We analyse body shape variation from ...