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This study examined the impact of fish farming on household food security and livelihoods of fish farming and non-fish farming households in Siaya County. Fish farming involves raising fish commercially in tanks or enclosures, usually for food. Currently fish farming remains under developed in Western Kenya where pond productivity is low and not rising, despite the efforts of several players including the national government of Kenya. Further, capture fishing in Lake Victoria and rivers has been declining. These scenarios called for the need to examine the production systems and their current performances. The objective of the study was to examine effect of fish farming on household food security and livelihoods. A correlational research design was adopted for the study. Stratified random sampling was used to select fish farming and non-fish farming households. For nutritional assessment, lactating mothers and preschool children were selected through stratified and systematic random sampling. ChiSquare revealed slight association between nutritional status and fish farming ( 4,0.01 2 = 0.448; p > 0.05) though not significant. Analysis of variance found a higher dietary diversity score for fish farmers at 77.1% (CL: 95%) compared to 14.6% (CL: 95%) for non-fish-farmers on the high end Hoddinote Scale. From the measurement of the mid upper arm circumference (MUAC) of pre-school children, a correlation coefficient was determined to establish if there is a relationship between improved nutritional status and fish farming. Findings were that non-fish farmers experienced more food shortages than fish farmers. Children from fish farmers' households were well nourished as compared to those of non-fish farmers. This study will benefit farmers since they will adopt Best Management Practices in fish farming in order to improve their household food security and livelihoods through increased income. Increased fish farming will avail fish as food hence improved food and nutrition security to curb incidences of under-nutrition in preschool children and lactating mothers.

Fish catches in Lake Victoria have been on the decline, while demand for fish has been increasing because of rapid human population growth and awareness of the health benefits of fish. This decline is attributed to socioeconomic activities around the lake and climate change effects. To bridge the gap, cage culture has presented itself as a new socioeconomic frontier with good prospects for income in Lake Victoria, besides conserving declining wild fish stocks. However, these cages are greatly influencing the biodiversity of the lake both negative and positive. The study adopted a descriptive survey research where a total of 200 cage fish farmers were targeted. A sample of 60 fish farmers was selected using purposive and simple random sampling methods. Interview schedules and self-administered questionnaires were the main tools for data collection. Both primary and secondary data were collected and analyzed using Statistical Package for Social Sciences. The results were: the majority of cage fish farmers were male (87%) while the female was 13%, with a majority (75%) of the secondary and tertiary level of education. The beach management units and fish farmers were responsible for siting of cages. The fish farmers experienced several challenges including high cost of feeds leading to the use of poor quality feeds that sink and increase eutrophication, which enhances the growth of algae and water hyacinth in the lake. Overstocking leads to the emergence of diseases and fish kills, and fish theft resulting in economic loss. Most (80%) of respondents were not aware of policy guidelines on cage culture in Lake Victoria, while (75%) were not aware if cage culture was promoting climate change effects in Lake Victoria. This paper recommends the government to create awareness of policy guidelines on cage fish farming.