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Insectary maintenance of Anopheles gambiae (Dipteran, Culicidae): First instar (L1) larvae depicts the accuracy of a pyrethroid insecticide, for malaria control

Okoh, F. N.*, Odikamnoro, O. O. and Nzei, J. I.

Malaria is a tropical disease responsible for the death of hundreds of children daily. Effort geared at eliminating the vector that transmit the causative agent are likely to reduce the incidence of malaria and consequent deaths. This study aims t...

Population density dynamics of Pachymelania byronensis (Wood, 1828) (Gastropoda: Thiaridae) in the Cross River, Nigeria

King, R. P. and Akpan, B. E.

The ecology of an exploited population of the commercially important molluscan species, Pachymelania byronensis (Wood, 1828) was studied (January-December, 2018) in the lower Cross River, Nigeria, using density [number per hectare (N. ha<...

Abundance and nesting sites characteristics of red-headed picathartes Picathartes oreas in Cross River State, Nigeria

Abatcha, M. and Odewumi, O. S.

This study assessed the abundance and nesting sites characteristics of red-headed picathartes (Picathartes oreas) in protected and unprotected forest in Cross River State, from August 2016 to January 2017. Data were collected through oral...

Distribution of tsetse flies and its Trypanosoma species infection in Old Oyo National Park, Nigeria

Omonona, A. O., Abioye, S. A., Odeniran, P. O. and Ademola, I. O.

Tsetse fly infestation in national parks is a major health risk to both the wildlife and tourists coming to sub-Saharan Africa. However, information on distribution and diversity of tsetse flies and trypanosome infection rate in Protected Areas li...

Prevalence and associated risk factors of malaria infection among pregnant women attending antenatal clinic in Yola North, Adamawa State, Nigeria

Enock, N.,* Pukuma, S. M., Augustine, L. M., Gundiri, L. B., Zamdayu, N. M. and Daniel, J. L.

This study determined the prevalence and associated risk factors of malaria infection among pregnant women attending antenatal clinic in Yola North, Adamawa State, Nigeria, between December 2017 and April 2018. Both direct microscopy and rapid dia...

Parasitofauna of ground-dwelling anurans from cocoa plantations in Ugboke, Edo State, Nigeria

Edo-Taiwo, O. and Aisien, M. S. O.*

The parasitofauna of ground-dwelling anurans from pesticide-treated cocoa plantations (CP) in Ojo Camp, Ugboke, Edo State of Nigeria were investigated and compared with those recovered from host specimens collected from the village settlement (VS)...

Cestode infections of two clariid and two claroteid catfish species in River Galma, Zaria, Nigeria

Ibrahim, Z. A., Aken’Ova, T. and Luka, S. A.

Four catfish (Siluriformes) species comprising two clariids, Heterobranchus bidorsalis (65) and Heterobranchus longifilis (15) and two claroteids, Auchenoglanis occidentalis (31) and Chrysichthys auratus (19) fr...

Histological, microbiological, physicochemical and heavy metals evaluation of effluent from Kara Cow Market, Ogun State, Nigeria in guppy fish (Poecilia reticulata)

Sogbanmu, T. O., * Sosanwo, A. A. and Ugwumba, A. A. A.

The Ogun River is a sink for untreated effluents discharged from the Kara Cow Market, Ogun State. In this study, microbiological, physicochemical and heavy metals evaluation were carried out on effluent from the market...

Comparison of cranial and body morphology of tree squirrels (Helioscurius rufobranchium) in selected locations of rainforest in Nigeria

Bamidele, A. O. and Akinpelu, A. I.

This study examined the differences in cranial morphology of tree squirrel species (Heliosciurus rufobranchium) from four different locations in rainforest part of Nigeria. Locally fabricated live traps made o...

Resistance levels of selected rice genotypes to Sitophilus oryzae L. and Rhyzopertha dominica F. infestations

Ajao, S. K., Popoola, K. O., * Mande, S. and Togola, A.

The need to screen new rice genotypes for resistance to stored product insect pests is important to boost production and availability of rice for food security. Therefore, thirteen rice genotypes and varieties included...

Anthropogenic impacts on the composition and population density of migratory and resident birds of selected wetlands sectors in northern Nigeria

Edegbene, A. O.

In recent times, there has been decrease in the number of migratory and resident birds in Hadejia-Nguru Wetlands in Nigeria. This, no doubt, is a subject of concern to conservationist and the country at large. The effe...

Anopheles gambiae s.l. insecticide susceptibility status in Umudike, Ikwuano LGA, Abia State, Nigeria

Ekedo, C. M. and Ukpai, O. M.

This study was conducted in order to determine the insecticide susceptibility status of Anopheles gambiae in Umudike, Abia State, Nigeria. Larval and pupal stages of An. gambiae mosquitoes were collec...

Length-weight relationship and relative condition factor of Gorean snapper, Lutjanus goreensis (Valenciennes, 1830) in the coastal zone of Lagos, south-west Nigeria

Fakoya, K. A. Anetekhai, M. A. and Saba, A. O.

Snappers are highly recommended as choice seafood and as viable candidate for cage culture in the brackish water and marine environments. However, very limited data exists on biological parameters of the snappers, ...

Parasitic endohelminths of tree frogs from two rainforest habitats in Edo State, Nigeria

Imasuen, A. A., * Ojo, O. O., Adesina, O. O., Enabuele, E. E. and Aisien, M. S. O.

Tree frogs are generally regarded as arboreal frogs and those associated with water during their breeding season as aquatic/arboreal frogs. Obazuwa Wetlands and Ikpako Riparian Habitat are both located in Ovia North Ea...

Effects of bottom-up and top-down interactions on the productivity of Iyieke Lake, Afikpo North, Ebonyi State, south-east Nigeria

Nwonumara, G. N. and Idumah, O. O.

The bottom-up and top-down interactions of the abiotic and biotic components of Iyieke Lake were studied for eleven months covering a pre-flood, flood and post-flood periods. During the study, some water quality parame...

The diversity and distribution of dragonflies and damselflies (Odonata) in University of Lagos, Akoka, Lagos, south-west Nigeria

Kemabonta, K. A.,* Adu, B. W., Nwabueze, O. F., Ogbogu, S. S. and Ohadiwe, A.

The presence of dragonflies and damselflies may be taken as an indication of good ecosystem quality. The greatest numbers of species are found at sites that offer a wide variety of microhabitats. A survey of Odonata fa...

EFFECT OF TEXTILE FACTORY EFFLUENT ON OTOLITH AND SOMATIC GROWTH PARAMETERS IN Clarias gariepinus

ADEOGUN, A.O. and CHUKWUKA, A.V.

Are otolith parameters more sensitive than somatic indices in detecting stress conditions in fish? This question was investi-gated using juvenile-sized Clarias gariepinus in a 30-day exposure bioassay to a textile factory effluent. A series of stat...

PATTERNS OF TREMATODE INFECTION IN GALL BLADDER FROM CATTLE SLAUGHTERED AT ISHERI-OLOFIN, OGUN STATE, NIGERIA

HASSAN, A.A. and ANWO, O.O.

A survey of gall-bladder of slaughtered cattle was carried out to determine variation pattern of trematode infection. A total of1,240 gall-bladders of cattle were examined for trematode eggs and adult worms between August 2008 and March 2009. Fif...

THE LENGTH-WEIGHT RELATIONSHIP OF Schilbe mystus (LINNE, 1766) FROM TWO MAN-MADE LAKES IN SOUTH-WESTERN NIGERIA

AYOADE, A. A.

The length-weight relationship (LWR) and condition factor of Schilbe mystus from Asejire and Oyan Lakes were investigated.The b-values, 3.3845 and 3.2402 for the relationship of body weight to body length for this species in Oyan and Asejire Lake...

TRENDS OF HUMAN SEX RATIO AT BIRTH AND TWINNING RATE IN IBADAN, SOUTH-WESTERN NIGERIA

BAKARE, A. A., ELEGBEDE, E.O. and OSOWOLE, O.I.

The human sex ratio at birth (SRB) and frequency of twinning are demographic parameters that vary among populations. Aretrospective study was carried out to investigate the trend of SRB, as well as twinning rate in Ibadan, Nigeria. Data on sexeso...

Latest articles

Bioaccumulation of heavy metals and petroleum hydrocarbons in the blue crab
(Callinectes sapidus, Rathbun 1896) from Ogu Creek in Upper Bonny Estuary,
Nigeria

Ogbuagu, D. H., Abara, P. N. and Chiegboka, N. A.

Prolonged industrial and artisanal discharge of petroleum refinery effluents into
the Ogu Creek at the Upper Bonny estuary of the Niger Delta could pose a great
threat to the aquatic biotopes. This research investigated bioaccumulation o...

Assessment of reproductive hormones in prepubertal and postpubertal rats
(Rattus norvegicus) on chronic exposure to various spectra of artificial light at
night

Kehinde, F. O., Dedeke, G. A., Olude, M. A., Ademolu, K. O., Aladesida, A. A. Adewale A. O. and Owagboriaye F. O.


Exposures to Artificial Light at Night (ALAN) is on the increase with resultant
varied physiological impact related to the light spectrum via the non-visual
pathway. This study examined the effects of various spectra of ALAN on

Growth performance and condition factor of Oreochromis niloticus (Linneaus,
1758) after exposure to chemically dispersed Bonny Light crude oil

Lelei, K. E., Sikoki, F. D. and Onyeche, V. O.

Dispersants are employed in oil spill situations to emulsify the oil into the water
column thereby, facilitating weathering; this is without consideration for aquatic
life and productivity. A renewal static bioassay was used to assess th...

Bioaccumulation of heavy metals and petroleum hydrocarbons in the blue crab
(Callinectes sapidus, Rathbun 1896) from Ogu Creek in Upper Bonny Estuary,
Nigeria

Ogbuagu, D. H., Abara, P. N. and Chiegboka, N. A.

Prolonged industrial and artisanal discharge of petroleum refinery effluents into
the Ogu Creek at the Upper Bonny estuary of the Niger Delta could pose a great
threat to the aquatic biotopes. This research investigated bioaccumulation o...

Distribution and abundance of mosquito species in Otuoke, Ogbia Local
Government Area, Bayelsa State, Nigeria

Ezenwaka, C. O., Ailogie, T. E.

The distribution and abundance of mosquito species in Otuoke community of
Ogbia Local Government Area, Bayelsa State, Nigeria was studied between
April and July 2021. Indoor mosquito collections were carried using the
Pyrethrum spra...

Low prevalence of Trichomonas vaginalis infection among women seeking
health care in five communities in Ikot Ekpene Local Government Area of
Akwa Ibom State, Nigeria

Ofum, E. O., Chiaghana, G. P., Ngwu, G. I., Onyishi, G. C.

Trichomoniasis is a common sexually transmitted parasitic infection caused
by Trichomonas vaginalis, yet it is always neglected and unreported. This
study was carried out among women of reproductive age made up of
136(34.2%...

Morphological features and length-weight relationships of Sarotherodon galilaeus from Oyan Lake, Southwestern Nigeria

Odulate, D. O., Akinde, A. O., Oyetade, O. P., Atobaale, O. Y., Shorunke, S. O., Ukulu, J. U.

Oyan Lake is one of the major sources of fish protein supply to many parts of
Southwestern Nigeria. Investigation was conducted on the biometrics, length-weight relationship and condition factor of Sarotherodon galilaeus in Oyan Lake...

Inferring the allometric growth coefficient of juvenile African mud catfish,
Clarias gariepinus (Burchell, 1822), using Bayesian and Frequentist regression models

Oluwale, F. V.

Statistics is essential in biological and ecological scientific research. However, the default Frequentist statistics based on p-value and null hypothesis testing is often misused and misinterpreted, hence causing reproducible crises. The p-value...

Epidemiology and risk factors of malaria among pregnant women attending
antenatal clinics in Osun State, Nigeria

Surakat, O. A., Onakhinor, S., Adewuyi A., Dauda O. G., Adeponle, O., Fadiji, O., Raji, M., Abdulsalam, M., Oroge, O., Adeleke, M. A., Sam-Wobo, S. O.

Globally, malaria in pregnancy leads to severe complications such as abortion, stillbirth, premature delivery, low birth weight, and fetal underdevelopment. This study examined the prevalence and risk factors of malaria among pregnant women attend...

Prevalence of helminth parasites in some commercially important fish species of River Anambra, Nigeria

Nwadike, C. C., Ilozumba, P. C. O., Amaechi, E. C., Okeke, O. A., Nnatuanya, I. O., Okeke, J. J., Afoemezie, P. I. and Udeh, N. P.

The demand for fish as a source of protein is on the increase. However,
sustainable productivity by fish farmers is constrained by parasitic infections. Thus, an investigation was conducted on the prevalence of helminth parasites in some comm...