The Journal of Zoology Studies

Number 2 Issue 2, 2015

01-05
Mosquito larval survey and their correlation with some chemical parameters in selected water bodies in Matara, Sri Lanka

Authors: G.W.R.W.M.R.M.W.K Kirinde, H.C.E Wegiriya

Abstract

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Number of views: 418

Mosquito borne diseases are a major public threat especially in Tropical countries including Sri Lanka. Therefore mosquito larval survey may directly contribute to the prevention of mosquito vector borne diseases. In the present study mosquito larval survey was carried out in selected rural and urbanized habitats in Southern Sri Lanka for 9 months to study the availability of mosquito larvae with reference to the physical and chemical characters of the selected habitats. Availability of larvae, abundance of larvae and correlation between larvae abundance and physico-chemical characters were determined. Found mosquito larvae were identified to the genus taxonomic level using pictorial keys. There is a significant difference1 between the variation of chemical characters of pH, Conductivity, nitrate and phosphate concentration. Mosquito larvae abundance 50%, 34%, 9% and 7% in Kirala Kele, Bandaththara, Nupe and Thudawa respectively. pH of the water body negatively correlated with larval abundance. All recorded mosquito genus were Culex, Aedes, Mansonia, and Anopheles. Identifying KiralaKele as a well habitat for mosquito may lead to carry out more future research on mosquito larval survey in rural, abandoned area.

Number 2 Issue 1, 2015

01-08
Altitudinal variation in density of mosquito in Thiruvannamalai Temple, a hilly area, Srivilliputtur Taluk, Virudhunagar district, Tamilnadu, India

Authors: Manikandan. K and Sevarkodiyone. SP

Abstract

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Number of views: 517

The prominent of them are the increase in human population, irrigation of crops, flooded rice fields, unplanned sanitation, urban development, the migration of bird, rainfall, temperature, humidity and dry arid condition and the changing life style of the population in cities, urban, sub-urban and rural areas of our nation. Altitudinal variation of mosquitoes was studied by collecting the mosquitoes using human bait sampling method during September 2009 to February 2010 from four habitats such as residential area, low altitude (78ft), transition altitude (156ft) and high altitude (234ft) of a rural ecosystem at Venkateshwarapuram village near Srivilliputtur. The density of mosquitoes was more in moderate rainy season than the acute rainy and winter seasons. Among the eight species recorded in the study area, Culex quinquefasciatus exhibited highest density and followed by Culex pseudovishnui and Anopheles subpictus. The other species showed moderate or less density. Variation in the density of mosquitoes was also observed. The density of mosquitoes was higher during moderate rainy season and winter season followed by acute rainy season.

09-12
Studies on questionnaires appraise of the Indian fox Vulpes bengalensis in agrestic domain

Authors: Sabaridasan.A, Manikandan.K, Palanikani.R, Soranam.R

Abstract

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Number of views: 509

The exhibit investigation was analyzed on habitats of Indian fox in agrestic domain of Villupuram district villages, Tamilnadu. This appraises was incompatible aspect’s questionnaire to agrestic domain granger. We progress to commemorate of early 10 years and recent of a fox universe in their domain agrestic domain. The oral appraise commemorated indicates that the fox survival domain was short-lived by the human radioactivity. It occurs at low compactness throughout its ramble and populations can undergo major fluctuations due to prey accessibility. Hence, it would be terminated in such domains the survival of the fittest of the Indian fox Vulpes bengalensis is under a crucial scourge.

13-21
Withius nanus Mahnert (Pseudoscorpiones: Whitiidae) a new record of phoresy on Goodwin’s brush-tailed mouse from Iran

Authors: Mahrad Nassirkhani, Kordiyeh Hamidi

Abstract

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Number of views: 538

Pseudoscorpions are minute arachnids which can be found in various habitats such as leaf litter, under bark of trees, under stones, phoresy on other arthropods and etc. This finding of a phoresy of the pseuoscorpion, W. nanus Mahnert, which was attached to the body hairs of Goodwin’s brush-tailed mouse, Calomyscus elburzensis Goodwin, is the first record of the family from Iran. In the present study, the redescription, measurements and illustrations of the species including the texts about its act of transporting are given.

22-25
Haematological status in Spirulina and soyabean supplementation to Catla catla fingerlings

Authors: A. Subramanian and U. Balasubramanian

Abstract

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Number of views: 453

The knowledge of the haematological characteristics is an important tool that can be used as an effective and sensitive index to monitor physiological and pathological changes in fishes. These parameters are also closely related to the response of the animal to the environment, an indication that the environment where fish lives could exert some influence on the blood characteristics. The supplementation of 1% Spirulina, 1% soyabean and 1% combined diet (1% Spirulina and soyabean) on haematological status in Catla catla. An experiment was conducted to determine the haematological role of Indian Major Carp Catla catla, fingerlings for period of 90 days.There were significant differences between the blood parameters (haemoglobin (Hb), packed cell volume (PCV), red blood cells (RBC), RBC indices (Mean Corpuscular Haemoglobin concentration (MCHC), Mean Corpuscular Haemoglobin (MCH) and Mean Corpuscular Volume (MCV) and white blood cells (WBC). The present investigation shows that incorporation of a soyabean and spirulina in diets for common carp results in increased haematological performance. Among the various diet, combined diet at 1% concentration produced the best and statistically significant (p<0.05) in haematological parameters RBC (1.27±0.07), WBC (6800±421.6), Hb (5.21±0.35), PCV (15.12±1.02), MCV (121.19±0.81), MCH (42.01±2.85) and MCHC (34.45±2.34) compared to other diets and control.

26-30
Human-wildlife conflict-causes, consequences and mitigation measures with special reference to Kashmir

Authors: Aadil Habib, Ishfaq Nazir, Mustahson Farooq Fazili, Bilal Ahmad Bhat

Abstract

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Number of views: 992

The rising levels of man-animal conflicts at various locations of Kashmir valley in India are due to close proximity between humans and wild carnivores particularly leopard and black bear. The data regarding human injuries and mortalities caused during conflicts from 2010 to 2012 was collected from Shere Kashmir Institute of Medical Sciences (SKIMS) Soura, Srinagar and its associated medical college hospital at Bemina Srinagar. The data indicates rising levels of man-carnivore conflicts in Kashmir. The leopard and Asiatic black bear were mainly involved in causing several forms of conflict. The human population growth and expansion, habitat degradation and fragmentation, land use transformation and increasing densities of livestock grazing in protected areas are considered as major causes of man-carnivore conflicts. The objective of the study is to highlight causes and consequences of man-animal conflicts and mitigation measures to be adopted for alleviating the problem. The study reveals that people living in close vicinity of forests and protected areas are often prone to attacks by wild carnivores like black bear and leopard.