Helen O. Imafidor

Helen O. Imafidor
University of Port Harcourt · Department of Animal & Environmental Biology

B.Sc (Zoology), MSc., Ph.D (Parasitology)

About

38
Publications
3,121
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36
Citations
Introduction
Helen Imafidor currently works at the Department of Animal & Environmental Biology, University of Port Harcourt. Helen does research in Plant Protection and Animal Health, Agronomy and Agricultural Plant Science. Their most recent publication is 'Haemoparasites of Bovine (Sokoto gudali) Species Slaughtered in Port Harcourt Metropololis, Rivers State, Nigeria'.

Publications

Publications (38)
Article
Full-text available
Yam; Dioscorea species of cropsare multivariantstaples in Nigeria and are plagued by plant parasitic nematodes (PPNs).Four species of Dioscorea; D. rotundata (white yam), D. cayenensis (yellow yam), D. alata (water yam), D. dometerum were selected to determine therelationaship between PPNsload and the nutritional status of the tubers. Proximate ana...
Article
Full-text available
Crude oil spill destroys biodiversity and adversely impacts the physicochemical characteristics of the terrestrial and aquatic environments. The population characteristics of soil nematodes can serve as indicators of alterations in the terrestrial environment. To determine the effects of crude oil spillage on the soil nematode fauna status; a study...
Article
Full-text available
This study aimed at investigating the sex and age-related parasitic burden of Clarias gariepinus cultured in earthen ponds. Eighty-five (85) fish samples were selected randomly for analyses from three earthen ponds. Sexing was done by the observation of the urinogenital papillae. For parasitological analysis, skin and gill scrapes were taken for ex...
Article
Full-text available
This screen house study was conducted to investigate the effect of the application of cow dung to crude oil polluted soils. Four rates of cow dung (0, 1, 2 and 3g) and four rates (0, 5, 10 and 15ml) of crude oil per 10kg of soil were used, a total of sixteen (16) treatment combinations were applied. Each treatment was replicated three times, for a...
Article
Background: This study was conducted to determine the effects of physico-chemical parameters of soils in environments used for open defecation on the abundance of geohelminths in Emohua, Rivers State, South South, Nigeria.
Article
Full-text available
Biopesticides have found intrinsic application in the control of plant pests and diseases, due to their eco-friendly activities and bioavailability as opposed to synthetic pesticides. Nematode infestation has become a major problem associated with poor yield and low economic value of farm produce. The height and dry shoot weight (DSW), of C. annum...
Article
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A study to determine the response of nematodes as bio-indicators of environmental alterations was carried in the New Calabar River in the Niger Delta. Samples were randomly collected from the benthic zone of the River using the modified Baermann’s technique. The study yielded sixteen (16) nematodes belonging to three (3) families and eight (8) spec...
Article
Full-text available
Abstract Plant parasitic nematodes especially Meloidogyne species are linked to global reduction or loss in the yield of agricultural produce. If plant diseases are left unchecked, it could lead to food shortage. Synthetic nematicide could induce toxicity, environmental degradation and are expensive. Root-knot nematodes (RKN) are devastating as it...
Article
Full-text available
Abstract Plant-derived pesticides have become a mainstay in the control of pest, due to the fact that synthetic pesticides induce environmental degradation. The effective control of plant nematode has been found to improve the yield and economic value of farm produce. Certain growth parameters are visible in diseased plant, these in turn affects th...
Article
Full-text available
Abstract. The plant parasitic nematode status of four yam species; D. alata, D. cayensis, D. dometurum and D. rotundata in four communities in Khana LGA, Rivers State, Nigeria was carried out. 160 randomly selected seed yams comprising 40 yam samples from each of the communities in the study area were sampled. 40 yam samples from each of the commun...
Article
Full-text available
A study to determine the influence of agro-related anthropogenic activities on soil nematode spatial distribution in the Niger Delta was carried out in three designated areas with different cropping practices. Soil samples were randomly collected from the Niger Delta Development Commission (NDDCF) farm: mixed-cropping (Site A); Rivers State Oil Pal...
Chapter
Introduction Adaptation is the evolutionary process whereby an organism or a population becomes better suited to its habitat. Knowledge of specific habitats is also critical in the study of the distribution and adaptation of plants and animals. Adaptation may be a feature which is especially important for an organism's survival and such adaptation...

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Projects

Projects (3)
Project
*To identify parasite species prevalent in earthen pond culture of Clarias gariepinus. *To determine the parasitemia in Clarias gariepinus. *To observe the correlation of water quality parameters and parasite intensity.