Original reference as:
Conservation: Tropheus sp. 'black' is not evaluated by the international union for the conservation of nature in the iucn red list of threatened species. These fishes are abundant in their natural habitat, but in my opinion, are vulnerable for several reasons. First, cichlid collectors often choose exclusively most colorful specimens, which may have led to an impoverishment, especially in the "orange banded" Tropheus. Second, careless attitude ended in unwanted releases, for example of "Kaisers" from Ikola inside "Kirschfleck" populations, which led to an important amount of hybrids in some areas (hybridization, especially with feral animals, is a major threat in species conservation). Third, the dramatically overcrowded and politically unstable northern coasts of Lake Tanganyika are heavily polluted and intensely raked by starving people.