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Stephen Amisah

Fisheries and Watershed Management

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About

I am a Full Professor in the Department of Fisheries and Watershed Management with considerable teaching and research experience at home and abroad. I have worked in interdisciplinary teams with universities and institutions in Western Europe particularly Netherlands and Finland. I have been involved and led international projects with collaboration with US universities particularly Oregon State University, Purdue University (Indiana), Virginia Tech & State University, Blacksburg with considerable funding from USAID through the AquaFish Innovation Lab.My research interests have focussed on fisheries and aquaculture management with a strong emphasis on anthropogenic perturbations that diminish the fish populations and impact ecological footprints of marine and freshwaters ecosystems. In particular, I have conducted research on heavy metal loading and bioaccumulation in aquatic biota and river sediments. In recent years I have been involved in climate change effects on aquatic biodiversity in forest fringe communities. I have examined various aspects of biodiversity in response to pollution and how renewable natural resources can contribute to rural livelihoods without compromising environmental integrity. In this respect. I have conducted Monitoring and Evaluation of degraded watersheds and also on fish populations following impoundments. Climate change and its effects on biosystems and aquatic ecology remain central to my investigations.

Research Summary

(inferred from publications by AI)

The researcher has focused on integrating conservation practices with sustainable aquaculture in Ghana, examining how land-based strategies can enhance biodiversity and ecosystem health while ensuring water quality remains optimal for aquaculture. Their work also delves into the nutritional aspects of Nile tilapia (Oreochromis niloticus) across diverse environmental inputs, contributing to understanding feed intake, growth performance, and sensory characteristics. Furthermore, the researcher explores the broader implications of these practices on broader social and economic impacts, including microfinance initiatives and financial inclusion efforts in African contexts, while also studying the ecological behavior of aquatic species such as the freshwater clam Galatea paradoxa.

Research Themes

All Papers

Traditional Representations of the Natural Environment and Biodiversity Conservation: Sacred Groves in Ghana(2010)
Traditional Representations of the Natural Environment and Biodiversity Conservation: Sacred Groves in Ghana(2010)
Traditional Representations of the Natural Environment and Biodiversity Conservation: Sacred Groves in Ghana(2010)
Effects of dietary inclusions of oilseed meals on physical characteristics and feed intake of diets for the Nile Tilapia, Oreochromis niloticus(2015)
Local agro-industrial by-products with potential use in Ghanaian aquaculture: a review(2014)
Digestibility and postprandial ammonia excretion in Nile tilapia (Oreochromis niloticus) fed diets containing different oilseed by-products(2015)
Effects of Two Environmental Best Management Practices on Pond Water and Effluent Quality and Growth of Nile Tilapia, Oreochromis niloticus(2014)
Growth Performance, Feed Utilization and Sensory Characteristics of Nile Tilapia, Oreochromis niloticus Fed Diets with High Inclusion Levels of Copra Meal(2016)
Effect of some common West African farm-made feeds on the oxygen consumption and ammonia excretion rates of Nile tilapia,<i>Oreochromis niloticus</i>(2017)
Biological Assessment of Aquaculture Effects on Effluent-Receiving Streams in Ghana Using Structural and Functional Composition of Fish and Macroinvertebrate Assemblages(2012)
Analysis of the use of credit facilities by small-scale fish farmers in Kenya(2009)
Aquaculture information sources for small-scale fish farmers: the case of Ghana(2009)
Impacts of anthropogenic activities on the fisheries of the Don, Rother and Dearne catchments(1998)
Effect of sandy and muddy substrates on the growth and survival of the freshwater clam Galatea paradoxa (Born 1778)(2010)

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About This Profile

This profile is generated from publicly available publication metadata and is intended for research discovery purposes. Themes, summaries, and trajectories are inferred computationally and may not capture the full scope of the lecturer's work. For authoritative information, please refer to the official KNUST profile.