Gift Samuel David

About

I hold a Bachelor’s degree in Fisheries and Aquaculture from the University of Uyo, Nigeria, where I investigated the growth performance of Clarias gariepinus using both on-farm and commercial feeds. Following this, I spent five years as a Research Assistant at the same institution, developing skills in experimental design, statistical analysis, data interpretation, and scientific writing. My work centred on sustainable aquaculture and the effects of anthropogenic pollution in freshwater and marine environments. Motivated by a desire to understand microplastic impacts, I pursued an MSc in Pollution and Environmental Control at the University of Manchester as a Commonwealth Scholar, focusing on microplastic distribution and accumulation in the River Tame, Greater Manchester. This experience deepened my interest in micro/nanoplastics and their interaction with aquatic organisms, leading to a second MSc in Marine Biological Resources at Ghent University as an Erasmus Mundus Scholar. My research included identifying microfibres in commercial fish guts along the South African coast, examining pharmaceutical effects on calanoid copepods, and investigating tissue-level changes in Mytilus edulis exposed to a wide range of pollutants, including microplastics. Now undertaking a PhD as a President Doctoral Scholar at the University of Manchester, under the supervision of Prof. Holly Shiels, Dr. Cyrill Bussy, and Dr. Ian Kane, my research explores how microplastics, their ecocorona properties, and environmental factors affect the health and development of freshwater teleosts. I remain dedicated to advancing research in aquatic ecotoxicology and contributing to the broader goals of environmental sustainability and conservation.

Work

CNR-ISMAR
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Research Assisntant (Internship)

Italy

University of Uyo, NG
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Administrative Assistant Intern

Nigeria

University of Uyo, Uyo, Akwa Ibom, NG
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Graduate Research Assistant Intern

Nigeria

University of Uyo
|

Research Assistant

Nigeria

Education

The University of Manchester
United Kingdom of Great Britain and Northern Ireland
Ghent University
Belgium

Internations MSc Marine Biological Resources

The University of Manchester
United Kingdom of Great Britain and Northern Ireland

Pollution and Environmental Control

University of Uyo
Nigeria

Bachelor of Fisheries and Aquaculture

Publications

Response of African Catfish Hybrid to Diets Supplemented with Varying Levels of Tryptophan

Published by

Trends in Agricultural Sciences

Summary

journal-article

Energy storage in the energy transition and blue economy: challenges, innovations, future perspectives, and educational pathways

Published by

Discover Applied Sciences

Summary

journal-article

Integrated assessment of heavy metal contamination and human health risks in granitic soils of South India: A multi-index approach to pollution and ecological impacts

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Results in Surfaces and Interfaces

Summary

journal-article

Integrated assessment of heavy metal contamination and human health risks in granitic soils of South India: A multi-index approach to pollution and ecological impacts

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Results in Surfaces and Interfaces

Summary

journal-article

Heavy Metal Accumulation and Nutrient Composition in Erpetoichthys calabaricus: Environmental and Human Health Implications

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Asian Journal of Biological Sciences

Summary

journal-article

Recent advances in biochar technology for aquatic pollution control: a critical review of applications, barriers, and future opportunities

Published by

Discover Sustainability

Summary

journal-article

Implications of dietary Delonix regia seed meal on growth, feed utilization, haematology and fillet yield of red Nile tilapia Oreochromis niloticus

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World Journal of Advanced Research and Reviews

Summary

journal-article

The Effect of Dietary Protein Levels and Female Brood Stock Size On Size Heterogeneity Among Heterobranchus longifilis Fingerlings

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Asian Journal of Emerging Research

Summary

journal-article

Growth Response of Clarias Gariepinus (North African Catfish) Under Varying Feeding Rates

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Sumerianz Journal of Biotechnology

Summary

journal-article

Varying Feeding Levels and the Growth Response of North African Catfish

Published by

South Asian Research Journal of Agriculture and Fisheries

Summary

journal-article

Zooplankton Assemblages of a Tropical Coastal Creek, South-Eastern Nigeria

Published by

Ecologia

Summary

journal-article

Plastic Waste in the Aquatic Environment

Published by

Analysis of Nanoplastics and Microplastics in Food

Summary

other

Heavy metals contamination in fishes: Effects on human health

Published by

Journal of Aquatic Science and Marine Biology

Summary

journal-article

The effect of sand mining on the physico-chemical parameters of Ikot Ekpan River, Akwa Ibom State, Nigeria

Published by

Journal of Aquatic Science and Marine Biology

Summary

journal-article

Heavy Metals Contamination in Fish: Effects on Human Health

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Journal of Aquatic Science and Marine Biology

Summary

journal-article

The Food and Feeding Habits of Fishes of a Coastal Nigeria River

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Scientific Research Journal

Summary

journal-article

Studies on the Effects of Feeding Levels on Growth Response and Nutrient Utilization of Heteroclarias (Hybrid Catfish)

Published by

Journal of Applied Sciences

Summary

journal-article

Spatial and temporal variations in the Benthic Macro-invertebrates of Douglas Creek, south-eastern Nigeria

Published by

Journal of Aquatic Science and Marine Biology

Summary

journal-article

Comparative effect of stocking densities and feeding levels on monthly growth response of hybrid catfish (Heterobranchus longifilis x Clarias gariepinus) in collapsible tanks

Published by

Journal of Aquatic Science and Marine Biology

Summary

journal-article

Growth Performance and Feed Utilization of Heterobranchus bidorsalis Fed with Flamboyant Seed Meal Substituted for Wheat Offal

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Asian Journal of Biological Sciences

Summary

journal-article

Haematology of Hybrid Catfish (Heteroclarias): Effect of Stocking Densities and Feeding Levels

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Trends in Applied Sciences Research

Summary

journal-article

Impact of oil spill on living aquatic resources of the Niger Delta region: A review

Published by

Journal of Wetlands and Waste Management

Summary

journal-article

Comparative effect of different stocking densities of heteroclarias on plankton abundance in tarpaulin tanks

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Journal of Aquatic Science and Marine Biology

Summary

journal-article

Plastic Waste in the Aquatic Environment: Impacts and Management

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Environment

Summary

journal-article

Growth performance of African catfish in lime treated ponds

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LAP Lambert Academic Publishing

Summary

book

Comparative effect of stocking densities and feeding levels on monthly growth response of hybrid catfish (Heterobranchus longifilis x Clarias gariepinus) in collapsible tanks

Published by

32nd Annual Conference of Fisheries Society of Nigeria

Summary

conference-abstract

Comparative study of the nutrient contents of cultured and wild African catfish (Clarias gariepinus, Burchell 1822)

Published by

International Journal of Agriculture, Environment and Bioresearch

Summary

journal-article

Cost-effectiveness, feed utilization and body composition of African sharptooth catfish (Clarias gariepinus, Burchell 1822) fingerlings fed locally formulated and commercial pelleted diets in tarpaulin tank

Published by

Tropical Freshwater Biology

Summary

journal-article

The effect of sand mining on the physico-chemical parameters of Ikot Ekpan River, Akwa Ibom State, Nigeria

Published by

32nd Annual Conference of Fisheries Society of Nigeria

Summary

conference-abstract

Haematological profile and growth response of African sharptooth catfish (Clarias gariepinus, Burchell 1822) fingerlings to locally formulated and commercial pelleted diets in tarpaulin tanks

Published by

American Journal of Innovative Research and Applied Sciences

Summary

journal-article

Growth Performance, Nutrient Utilization and Survival of African Sharptooth Catfish (Clarias gariepinus, Burchell 1822) Fingerlings Fed Locally Formulated and Commercial Pelleted Diets Reared in Tarpaulin Tanks

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CARD International Journal of Agricultural Research and Food Production

Summary

journal-issue

Heavy metals concentration in some commercial fishes in the lower Cross River estuary

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Nigerian Journal of Agriculture, Food and Environment

Summary

journal-article

Review of physical and chemical properties of Nigerian creeks

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Nigerian Journal of Agriculture, Food and Environment

Summary

journal-article