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Professor Horst Kaiser


Horst Kaiser

email: h.kaiser@ru.ac.za


Horst Kaiser studied agricultural sciences at the University of Bonn in Germany. In his thesis he developed a method to control and stabilise water pH in closed recirculating systems that are used in intensive fish farming. During his post-doctoral research he studied growth models for salmonids at the University of Idaho (USA) and contributed to a project by the U.S. Food and Drug Administration to evaluate the use of erythromycin in the treatment of bacterial kidney disease in trout.

At the Department of Ichthyology and Fisheries Science of Rhodes University his research interests range from topics related to fish physiology, fish health management, abalone and marine fish culture, larval rearing, aquaponics systems, probiotics in aquaculture, and water treatment methods.

He lectures fish health management (honours), fish physiology (ichthyology II), experimental design (ichthyology III), and applied fish biology (ichthyology III).

During his time at Rhodes University he has collaborated with several European Universities and their programmes to conduct research and co-supervise post-graduate students, including Universities in Germany (University of Stuttgart), Austria (Vienna), Belgium (University of Ghent, Artemia Reference Centre), and France (University of Montpellier). He collaborates with South African Universities like the University of Pretoria (Onderstepoort Veterinary Institute), and the University of Johannesburg (Department of Zoology), and supervises PhD students in collaboration with members of the Department of Forestry, Fisheries and the Environment.

He has published 88 peer-reviewed papers, presented more than 100 talks at national and international conferences, and wrote three books on the biology, culture and keeping of Koi. He serves on the editorial board of Aquaculture Research and the Journal of Applied Ichthyology.


Selected publications

Baxevanis, A.D., Maniatsi, S., Kouroupis, D., Marathiotis, K., Kappas, I., Kaiser, H., Abatzopoulos, Th-J. (2014) Genetic identification of South African Artemia species: invasion, replacement and co-occurrence. Journal of the Marine Biological Association of United Kingdom, 94: 775-785.

Alexander, M., Kaiser, H., Weyl, O., Dick, J. (2015) Habitat simplification increases the impact of an invasive species. Environmental Biology of Fishes, 98: 477-486. Kaiser, H., Erasmus, B., Naylor, M. (2017) Behavioural response of farmed South African abalone Haliotis midae L. to disturbances caused by husbandry procedures. Aquaculture International, 25(1), 21-29.

Huchzermeyer K.D.A., Woodborne S., Osthoff G., Hugo A., Hoffman A.C., Kaiser H., Steyl J.C.A., Myburgh J.G. (2017) Pansteatitis in polluted Olifants River impoundments: Nutritional perspectives on fish in a eutrophic lake, Lake Loskop, South Africa. Journal of Fish Diseases, 40 (11): 1665-1680.

Wu, Y., Kaiser, H. Jones CLW. (2019) A first study on the effect of dietary soya levels and crystalline isoflavones on growth, gonad development and gonad histology of farmed abalone, Haliotis midae. Aquaculture International, 27:167–193.

Weiss, S-E, Emami-Khoyi, A., Kaiser, H., Cowley, P.D., James N.C., Jansen van Vuuren, B., Whitfield, A.K. Teske, P.R. (2022). The last two remaining populations of the critically endangered estuarine pipefish are inbred and not genetically distinct. Frontiers in Marine Science, 2022, Volume 8, Article 756595, doi: 10.3389/fmars.2021.756595

Kasozi, N., Abraham, B., Kaiser, H., Wilhelmi. 2021. The complex microbiome in aquaponics: Significance of the bacterial ecosystem. Annals of Microbiology, Vol. 71. 1-13.

Last Modified: Mon, 06 Feb 2023 07:39:29 SAST