Azubuike V. Chukwuka

ORCID: 0000-0003-2654-1406
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About
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Research Areas
  • Environmental Toxicology and Ecotoxicology
  • Fish Biology and Ecology Studies
  • Aquaculture Nutrition and Growth
  • Water Quality and Pollution Assessment
  • Fish Ecology and Management Studies
  • Reproductive biology and impacts on aquatic species
  • Mercury impact and mitigation studies
  • Toxic Organic Pollutants Impact
  • Pharmaceutical and Antibiotic Environmental Impacts
  • Microplastics and Plastic Pollution
  • Aquatic Ecosystems and Biodiversity
  • Atmospheric chemistry and aerosols
  • Per- and polyfluoroalkyl substances research
  • Heavy Metal Exposure and Toxicity
  • Electrochemical Analysis and Applications
  • Effects and risks of endocrine disrupting chemicals
  • Marine and fisheries research
  • Pesticide and Herbicide Environmental Studies
  • Parasite Biology and Host Interactions
  • Recycling and Waste Management Techniques
  • Heavy metals in environment
  • Ocean Acidification Effects and Responses
  • Pesticide Exposure and Toxicity
  • Aquaculture disease management and microbiota
  • Transboundary Water Resource Management

University of Ibadan
2013-2024

Université du Québec à Trois-Rivières
2023

National Research and Innovation Agency
2023

Nigerian Meteorological Agency
2022

Shandong Freshwater Fisheries Research Institute
2021

Central Agricultural University
2021

University of Burdwan
2021

National Agency for the Control of AIDS
2017

Cocoa Research Institute of Nigeria
2016-2017

Microplastics (MPs) are physical anthropogenic pollutants and their ability to act as contaminant vectors in biological matrices is of serious ecosystem human health concern. In the present study, we have, for first time, screened detected MPs stomach a select group commonly consumed fish species from municipal water supply lake (Eleyele) Nigeria. A total 109 samples consisting eight (8) species: Coptodon zillii (CZ: n = 38), Oreochromis niloticus (ON: 43), Sarotheron melanotheron (SM: 19),...

10.1007/s11356-020-09031-5 article EN cc-by Environmental Science and Pollution Research 2020-05-11

The chemical inhibition of acetyl-cholinesterase (AChE) is a potent strategy for addressing signal related neuropathology and natural products are potential sources compounds with such properties. Essential oil extracts from leaf, seed, stem rhizome four medicinal plants [Aframomum melegueta K. Schum, Crassocephalum crepidioides (Benth S. More), Monodora myristica (Gaertn.), Ocimum gratissimum (Linn)] were tested inhibitory activity (AChEI) using Ellman's colorimentric method compared to...

10.1016/j.toxrep.2015.05.003 article EN cc-by-nc-nd Toxicology Reports 2015-01-01

The pesticide ecosystem impacts are very diverse, and depending on their persistence could exert intrinsic toxicity within an acute to a chronic timeframe. This study examined the toxic effects of Diazinon haematological biochemical endpoints in Oreochromis mossambicus after exposure. After prior range fining test, fishes were exposed predetermined diazinon concentrations (T1-0.906 mg/L) (T2-1.812 sampled 28 days for endpoints. In Diazinon-exposed fish, haemoglobin content, Total Red Blood...

10.1080/02757540.2023.2178649 article EN Chemistry and Ecology 2023-02-14

We have investigated the occurrence, distribution, and biomagnification of per- polyfluoroalkyl substances (PFAS) in two tropical lakes (Asejire Eleyele) Southwestern Nigeria, with contrasting urban intensities. Over an 8-month period, we sampled sediment fish species (Clarias gariepinus: CIG; Oreochromis niloticus: ON; Coptodon guineensis: CG; Sarotherodon melanotheron: SM) across trophic levels, analyzed various PFAS congeners, addition to a select group toxicological responses. While...

10.1016/j.envpol.2024.123575 article EN cc-by Environmental Pollution 2024-02-14

Abstract The world's 1.4 million lakes (≥10 ha) provide many ecosystem services that are essential for human well‐being; however, only if their health status is good. Here, we reviewed common lake issues and classified them using a simple health‐based approach to outline living systems in need of oxygen, clean water balanced energy nutrient supply. main reason adopting some the terminology classification increase awareness understanding global issues. We show exposed various anthropogenic...

10.1029/2023ef004387 article EN cc-by Earth s Future 2024-04-01

Diazinon exposures have been linked to the onset of toxic pathways and adverse outcomes in aquatic species, but ecological implications on model species are not widely emphasized. The objective this study was determine how organophosphate pesticide diazinon affected hematological (hemoglobin, total red blood count, white mean corpuscular hemoglobin), growth (condition factor, hepatosomatic index, specific rate), biochemical (total serum glucose, protein), endocrine (growth hormone,...

10.3390/app112210902 article EN cc-by Applied Sciences 2021-11-18

The present study has investigated per- and poly-fluoroalkyl substances (PFAS) in the gill tissues of various fish species inhabiting different trophic levels within Eleyele Lake, a tropical freshwater lake Nigeria. mean concentrations PFAS congeners were determined, their trends patterns analyzed across species. results revealed variations congener abundance species-specific that was influenced by habitat niche preferences. Multivariate associations using canonical-correlation analysis...

10.1016/j.scitotenv.2024.173245 article EN cc-by The Science of The Total Environment 2024-05-14

Introduction: Estrogenic chemicals in aquatic environments impact fish reproductive health, with vitellogenin protein levels serving as a crucial biomarker for xenoestrogen exposure. Limited knowledge exists on estrogenic effects tropical environments, prompting an investigation into the influence of environmental estrogens Chrysichthys nigrodigitatus Lagos and Epe lagoons. Methods: A total 195 samples underwent analysis protein, sex hormones (testosterone 17 β-estradiol), gonad pathology...

10.3389/ftox.2024.1336916 article EN cc-by Frontiers in Toxicology 2024-02-06
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