A5007712460- Aquatic Ecosystems and Biodiversity
- Coral and Marine Ecosystems Studies
- Fish Ecology and Management Studies
- Fish Biology and Ecology Studies
- Marine and fisheries research
- Aquaculture Nutrition and Growth
- Child Nutrition and Water Access
- Aquatic Ecosystems and Phytoplankton Dynamics
- Water Quality Monitoring Technologies
- Water Quality and Pollution Assessment
- ICT in Developing Communities
- Agricultural Innovations and Practices
- Reproductive biology and impacts on aquatic species
- COVID-19 Pandemic Impacts
- Coastal and Marine Management
- International Maritime Law Issues
- Global Maritime and Colonial Histories
- Marine Ecology and Invasive Species
- Conservation, Biodiversity, and Resource Management
- Island Studies and Pacific Affairs
- Environmental Education and Sustainability
- Environmental Sustainability in Business
- Aquaculture disease management and microbiota
- Economic and Environmental Valuation
- Marine animal studies overview
Kenya Marine and Fisheries Research Institute
2010-2023
Lancaster University
2022
ARC Centre of Excellence for Coral Reef Studies
2017-2021
James Cook University
2017-2021
Australian Research Council
2019
The vast development opportunities offered by the world's coasts and oceans have attracted attention of governments, private enterprises, philanthropic organizations international conservation organizations. High-profile dialogue policy decisions on ocean futures are informed largely economic ecological research. Key insights from social sciences raise concerns for food nutrition security, livelihoods justice but these yet to gain traction with investors discourse transforming governance....
Abstract Unsustainable fishing is a major driver of change in marine ecosystems. The ways that gears target fishes with different ecological functions are unclear, particularly complex multispecies fisheries. Here, we examine whether artisanal selectively unique combinations traits (diet, body size, depth, position water column, period activity, schooling behaviour) coral reef ecosystem. We use fish landing data from 25 sites along the Kenyan coast collected over 7‐year period. All targeted...
Policies designed to contain the COVID-19 pandemic have impacted food systems worldwide. How impacts played out in local systems, and how these affected lived experiences of different people is only just coming light. We conducted a structured analysis containment policies on small-scale fishing communities Kenya, Papua New Guinea, Saint Lucia, based interviews with men women fishers, fish traders, community leaders. Participants reported that lead indirectly reduced volumes food, lower...
Abstract The present study demonstrates the application of a multi‐metric Phytoplankton Index Biotic Integrity (PIBI) approach for ranking major river catchments in Kenyan part Lake Victoria on basis their pollution status. index utilizes water quality and zooplankton data, phytoplankton diversity, abundance attributes, as well literature information. rivers were sampled from 2016 to 2018 during wet season (March) dry (July). separation power Mann–Whitney U test ( p < .05) qualified eight...
Abstract Lake Baringo is a Ramsar‐designated water body facing myriad environmental challenges attributable to anthropogenic activities, thereby being an ecosystem under perturbation. At the same time, however, it important aquatic resource not only local community, but also international arena because of its rich biodiversity. It supports artisanal fishery with four major fish economic importance, including Oreochromis niloticus , Protopterus aethiopicus Clarias gariepinus and Barbus...
Abstract Many conservation interventions are hypothesized to be beneficial for both the environment and people's well‐being, but this has rarely been tested rigorously. We examined effects of adoption or nonadoption a intervention on 3 dimensions well‐being (material, relational, subjective) over time. focused fisheries bycatch management initiative intended reduce environmental externalities associated with resource extraction. collected panel data from fishers ( n = 250) in villages...
Fish aggregating devices (FADs) have been widely used by commercial fisheries to increase the catchability of pelagic stocks in open sea. FADs potential enhance nearshore small-scale where are often overfished. This study examined changes catch composition, abundance, and effort, aspects diversity Kenya's coastal after deployment anchored fish (AFADs). The combined both fishery independent dependent methods assessing assemblages post-deployment. Results showed orders magnitude length,...
Physicochemical characteristics and phytoplankton species composition abundance (chlorophyll-a concentration) were measured in Chepkanga Dam during the months of November December (2007) February (2008); all sampling being within dry season. Three sites (A, B C) selected to correspond different anthropogenic impacts. Triplicate water samples collected twice per month analysed laboratory (chlorophyll-a; dissolved oxygen reactive phosphorus concentrations). In situ measurements temperature pH...
This study reports tolerance levels and lethal concentrations of yolk sac free swimming fry African catfish (Clarias gariepinus) to different therapeutic doses formalin. Comparative treatments were up 2000 ppm for 15, 30 60 min exposure times 150 24 h time the second experiment on concentrations. In both stages, higher survivals recorded at short lower The LC50 value was 130 90 with total mortalities beyond 125 respectively. Although other gave best performance in terms survival, we...
Research-engaged decision making and policy reform processes are critical to advancing resilience, adaptation, transformation in social-ecological systems under stress. Here we propose a new conceptual framework assess opportunities for research engagement the process, building upon existing understandings of power dynamics political economy reform. We retrospectively examine three cases small-scale fisheries making, at national level (Myanmar) regional (Pacific Islands region sub-Saharan...
Biotic interactions such as competition and predation are important ecological drivers of population structure. Interactions among higher trophic level fish can contribute to further declines in species, eels, made vulnerable by overexploitation or environmental change. Furthermore, may predispose eel populations collapse, but this is poorly understood, particularly along the Western Indian Ocean (WIO) rivers. This study evaluated stomach contents captured with glass commercial fyke nets...