Anthony Nzioka
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Anthony Nzioka

Since 2004, Anthony has been working in ocean sciences monitoring, collecting and characterizing identification and abundance data on invertebrates and fish species in Kenya’s coastal waters. He likes to spend a lot of his time underwater studying patterns of fish behavior from feigning death to teamwork, aggression, predator avoidance, finding mates and parenting. This has great implications on speciation since molecular phylogenetic studies have provided evidence of specialization that is linked to the evolution of adaptive mechanism in different fish species. While each pattern of behavior is important, finding mates and parenting is probably the most important fish behaviour activity that ensures continuation of a species.

Anthony’s research interests are in describing marine ecosystems, assessing their health, integrity and the threats they face and, finding ways on how to maintain, protect, mitigate and rehabilitate ecosystems using adaptive management strategies. The general goals of his research interests are to provide linkages between aquaculture, fisheries and sustainability issues surrounding the exploitation of aquatic resources in the marine environment. He follows an interdisciplinary approach to research, cutting across most areas of the marine environment to understand the population ecology and dynamics of most marine organisms and its linkages to biodiversity assessment, conservation and sustainable food production.

Anthony has acquired knowledge and skills in oceanography/biological oceanography, marine biology and ecology, marine and coastal ecosystems, marine aquaculture and aquaculture technologies and, molecular biology and biotechnology techniques. He is part of several research and development groups/teams that are; (1) investigating new and adaptive culture species and techniques for enhanced marine fish production, (2) conducting biodiversity assessments of critical habitats for marine and coral reef ecosystems, (3) promoting integrated coastal zone management (ICZM) of coastal resources and (4) monitoring the biological effects of pollution in coastal ecosystems (marine environmental health). Anthony has been involved in several projects within the Western Indian Ocean region and the North Atlantic region, with some of his work having been published and presented in several conferences globally.

KMFRI Naivasha
Freshwater Systems
Applied Marine Ecology & Conservation, Marine Food Production and Marine Environmental Health.
• Ecological interactions of marine communities and their responses to environmental pressures. • Anthropogenic impacts on marine ecosystems, services and resources as well as finding ways to adapt, mitigate and remedy such pressures. • Restoration and conservation of marine communities and their environment in addition to developing appropriate tools for effective ecological and environmental monitoring programs • Reproduction of marine fishes, shellfish and marine invertebrates with applications to fisheries, marine aquaculture, coral reef restoration, and environmental pollution assessment. • Development of modern tools and techniques in aquaculture strategies for marine fish, shellfish and corals to improve fish production and restore degraded reefs. • Application of molecular biology and biotechnology techniques to problems in ecotoxicology, water quality, fisheries and aquaculture and to find solutions to these problems
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MSc. In Marine Environment and Resources 
BSc. Fisheries and Aquatic Sciences 
Certificate in Aquaculture 
Certificate in Marine fish hatchery techniques

Mwachireya, S. A., Nzioka, A. M. and Mutiso, D. N. (2017). Coral recruit-algal interactions in coral reef lagoons are mediated by riverine influences. International Journal of Ecology, vol. 2017, Article ID 1351854, 10 pages: doi: 10.1155/2017/1351854

Nzioka, A., Waithaka, E., Mutie. A., Loki, P. and Boera, P. (2017). Catch assessment survey for Lake Naivasha to guide management of the fishery. Technical Report KMF/RS/2017/B1.3(ii)a, Kenya Marine and Fisheries Research Institute, Mombasa.

Boera, P., Waithaka, E., Mutie, A., Nzioka, A. and Loki, P (2017). Report on demarcation and protection of an identified fish-breeding site at Korongo in Lake Naivasha in collaboration with communities, and monitor the effect of protection on the site to inform management decisions. Technical Report KMF/RS/2017/B1.8(ii)c, Kenya Marine and Fisheries Research Institute, Mombasa.

Mutie, A., Boera, P., Waithaka E., Nzioka, A., Loki, P. and Keyombe, J.L.A. (2017). Monitoring the extent of macrophytes and other invasive weeds on Lake Naivasha and establish the impact on the fisheries to facilitate management. Technical Report KMF/RS/2017/B2.5(iv), Kenya Marine and Fisheries Research Institute, Mombasa.

Valencia, A., Andrieu, J., Nzioka, A., Cancio, I., and Ortiz-Zarragoitia, M. (2017). Burmuinaren eta gonadaren arteko harremanak ugalketaren eraenketan: gene esangarrien transkripzio-aldaketak Pasaiako Chelon labrosus korrokoien gametogenesian. Zientziak eta natur zientziak, IkerGazte (Paper 66). 7pp.

Valencia, A., Andrieu, J., Nzioka, A., Cancio, I., and Ortiz-Zarragoitia, M. (2017). Relationship between the brain and the gonad in the reproductive process: Changes in the transcription of key genes during gametogenesis in the thicklip grey mullet Chelon labrosus, from Pasaia harbour. Science and natural sciences, IkerGazte (Paper 66). 7pp.

Mutua, A. N. (2016). Gametogenesis related genes and apoptosis marker genes during the reproductive cycle of the thicklip grey mullet (Chelon labrosus Riso, 1927) of Pasaia Harbour (Bay of Biscay, South-western Europe); Possibilities for development of molecular markers of xenoestrogenic exposure (Master’s thesis).

Valencia, A., Andrieu, J., Nzioka, A., Cancio, I., and Ortiz-Zarragoitia, M. (2017). Target gene transcription levels along the HPG-axis of female, male and intersex thicklip grey mullets from a polluted harbour. XI Congress of Iberian Association for Comparative Endocrinology, Vigo, Galicia, Spain, 13th – 15th July, 2017.

Valencia, A., Andrieu, J., Nzioka, A., Cancio, I., and Ortiz-Zarragoitia, M. (2017). Alterations in gene expression in the HPG-axis of female, male and intersex mullets from a polluted harbour. 19th International Symposium on Pollutant Responses in Marine Organisms (PRIMO 19), Matsuyama, Japan, 30th June – 3rd July, 2017.

Valencia, A., Andrieu, J., Nzioka, A., Cancio, I., and Ortiz-Zarragoitia, M. (2016). Transcriptional profiles of HPG-axis related genes in female, male and intersex thicklip grey mullets (Chelon labrosus). 8ISFE: 8th International Symposium on Fish Endocrinology, Gothenburg Sweden. July, 2016.

Valencia, A., Andrieu, J., Nzioka, A., Cancio, I., and Ortiz-Zarragoitia, M. (2016). Brain and gonadal transcriptional profiles of HPG-axis related genes in female, male and intersex thicklip grey mullets (Chelon labrosus). Aquaculture, Endocrinology and Toxicology Abstracts, 220. VI Iberian Congress of Ichthyology, Murcia, Spain. 21st – 24th June, 2016.

KCDP. (2015). Lamu Biodiversity and Ecosystem Health Assessment Technical Report: Research Geared towards Promoting Environmentally Sustainable Management of Kenya’s Coastal and Marine Resources, KMFRI technical report series, Mombasa, pp.45