Joseph Onyango Luomba

Tanzania Fisheries Research Institute | TARIFI · Research Department

Mental models influence how individuals think and act in relation to their external environment and have been identified as leverage points to address sustainability challenges. Given the importance of mental models, a new tool to assess mental models has been developed: the Mental Model Mapping Tool (M-Tool). M-Tool was designed to have a standard...

Stakeholder mental model elicitation can produce valuable insights into perceptions of complex systems such as ecosystems, economies, or the climate. These mental models can uncover crucial differences in perceptions between stakeholders and prevalent misunderstandings of the system, which can ultimately contribute to successful resource management...

A new app, called M-Tool, has been developed by researchers at Heidelberg University and Tanzanian Fisheries Research Institute (TAFIRI) as part of the MultiTip project. M-Tool is an innovative app that allows users to capture people's perceptions of complex systems (or mental models) with mobile devices, and can be tailored to map perceptions of a...

Illegal, unreported, and unregulated (IUU) fishing poses a serious challenge to fisheries governance as it does not go away easily despite various efforts to combat it. The persistence of IUU fishing is a threat to securing sustainable small-scale fisheries, as it affects ecosystem health, food security, and viable livelihoods, and can worsen pover...

The continued fish decline in most capture fisheries including the Lake Victoria fisheries have led to increased promotion of fish farming. However, little is known about consumers' behaviour and preference on farmed fish. This study presents the consumer behaviour and preference for farmed and wild fish within the Lake Victoria region in Tanzania....

Illegal, unreported, and unregulated (IUU) fishing is a major concern in fisheries management around the world. Several measures have been taken to address the problem. In Lake Victoria, the alleviation of IUU fishing is implemented through the Regional Plan of Action (RPOA-IUU), which restricts use of certain fishing gear, as well as prohibits fis...

Lake Victoria is a major source of livelihood for people coming from within and outside the basin. It provides food, employment, and contributes to the national economy of the country as well. This paper examines the socio economic status of the fishers to assess whether fishers" poverty is being reduced, increased or if there is no change on it an...

The aquaculture sector is often considered a male domain because of the high levels of investments and nature of work. Women's role and participation has often been ignored partly due to socio-cultural taboo against them. This paper therefore highlights that women's play a critical role in the whole chain from pond construction fingerlings sorting,...

The literature on fisheries co-management is almost silent on the issue of the movement of fisherfolk within fisheries, although such movement must have implications for the effectiveness of co-management. The introduction of co-management often involves the formation of new structures that should enable the participation of key stakeholder groups...

The riparian governments of Lake Victoria have adopted co-management approach in fisheries management. This paper discusses gender mainstreaming in fisheries management of Lake Victoria, user rights, successes and challenges of the process. This paper has used gender-disaggregated data from several studies carried out around Lake Victoria using qua...

The paper discusses the contribution of the Lake Victoria fisheries resources to the riparian states as well as the communities. The paper has used data from studies conducted simultaneously and by reviewing documents from government and other studies reports. Results indicate that in addition to GDP, fisheries have also generated income and revenu...