Zoology: Recent submissions

Now showing items 81-100 of 107

Preliminary Assessment of the Status of Commercially Prepared Salted and Sun Dried Fish Scomberoides Commersonianus (Lacepede, 1802)

Vivekshan Reval, S.; Sivashanthini, K.; Thavaranjit, A.C. (JUICE- 2012 University of Jaffna, 2012-07-20)

The present research work was carried out to evaluate the status of commercially prepared salted and sun dried fish, Scomberoides commersonianus from the most popular dried fish preparation site Velanai in Jaffna district ...
Variations in susceptibility to common insecticides and resistance mechanisms among morphologically identified sibling species of the malaria vector Anopheles subpictus in Sri Lanka

Surendran, S.N.; Jude, P.J.; Weerarathne, T.C.; Karunaratne, S.H.P.P.; Ramasamy, R. (2012-02)

Background: Anopheles subpictus s.l., an important malaria vector in Sri Lanka, is a complex of four morphologically identified sibling species A-D. Species A-D reportedly differ in bio-ecological traits that are important ...
Reproductive characteristics of doublespotted queenfish, Scomberoides lysan (Actinopterygii: Perciformes: Carangidae), from Sri Lankan waters: Implications for fisheries management

Thulasitha, W.S.; Sivashanthini, K. (2013)

Background. The doublespotted queenfish, Scomberoides lysan (Forsskål, 1775), is one of the most important and highly priced food fishes popular for dry fish production in Sri Lanka. Knowledge of spawning pattern and season ...
Microscopic staging system used in the identification of gonad developmental stages of Scomberoides lysan

Thulasitha, W.S.; Sivashanthini, K. (Academic Journals Inc, 2013)

The present study was carried out to identify the developmental changes in the gonads of Scomberoides lysan during maturation in order to determine the spawning pattern, ovulation pattern and spawning season. S. lysan is ...
Growth pattern and length-weight relationship of Scomberoides lysan (Pisces: Carangidae) from the northern waters of Sri Lanka

Thulasitha, W.S.; Sivashanthini, K. (Academic Journals Inc, 2012)

Estimating length-weight parameters for food fish is an important component in the population dynamics studies. The present study was carried out to find the length-weight relationship parameters of tropical Scomberoides ...
Effect of leptin on prolactin and insulin-like growth factor-I secretion by cultured rat endometrial stromal cells

Tennekoon, K.H.; Eswaramohan, T.; Karunanayake, E.H. (American Society for Reproductive Medicine, 2007-07)

Objective: To study the possible effect of leptin on PRL and insulin-like growth factor (IGF)-I secretion from rat endometrial stromal cells. Design: The effect of recombinant murine leptin on the secretion of PRL and IGF-I ...
Modulatory effects of dextran sulfate and fucoidan on binding and channel properties of AMPA receptors isolated from rat brain

Suppiramaniam, V.; Vaithianathan, T.; Manivannan, K.; Dhanasekaran, M.; Parameshwaran, K.; Bahr, B.A. (Wiley-Liss, Inc, 2006-11)

Previous work showed that the glycosaminoglycan (GAG) dextran sulfate (500 kDa) altered the binding and channel properties of α-amino-3-hydroxy-5- methyl-4-isoxazolepropionic acid (AMPA)-type glutamate receptors. The current ...
Growth characteristics of slender silver-biddies Gerres oblongus (Pisces: Perciformes) from the Jaffna lagoon, Srilanka

Shutharshan, S.; Sivashanthini, K. (Academic Journals Inc, 2011)

The present study was carried out to understand the growth parameters of the slender silver biddy Gerres oblongus. Growth parameters of G. oblongus such as asymptotic length (LJ, growth coefficient (K) and age at zero ...
Survey of peridomestic mosquito species of Jaffna peninsula in Sri Lanka

Rajendram, G.F.; Antony, N.R. (1991-12)

Surveys of mosquitos in Sri Lanka have generally been confined to the South. A recent study in Jaffna peninsula in northern Sri Lanka reported on the biology of peridomestic mosquito species. The present survey indicates ...
Length-weight relationship and relative condition of a silver biddy Gerres oblongus (Pisces: Perciformes) from the Jaffna lagoon, Sri Lanka

Sivashanthinil, K.; Abeyrami, B. (2003)

Cultivation of Gerres oblongus is likely to be profitable because of the consumer demand. The values obtained for the mean weight by sex show that females were significantly (P<0.05) larger than males. Covariance analysis ...
Length-weight relationship of Sphyraena obtusata cuvier, 1829 (Pisces: Perciformes) from the Jaffna Lagoon, Sri Lanka

Sivashanthini, K.; Gayathri, G.; Gajapathy, K. (Academic Journals Inc, 2009)

The present study was carried out to gain some knowledge on length-weight relationship parameters, growth pattern and difference between the growth parameters of male and female Spltyraena obtusata. The knowledge of ...
Reproductive characteristics of squid Sepioteuthis lessoniana (Lesson, 1830) from the Northern Coast of Sri Lanka

Sivashanthini, K.; Thulasitha, W.S.; Charles, G.A. (Academic Journals Inc, 2010)

The present study was carried out to understand some reproductive characteristics such as spawning season, variation in maturation indices with months, fecundity, sperm count and relationships between various measurements ...
Population dynamics of silver biddy Gerres setifer (Pisces: Perciformes) in the Parangipettai waters, southeast coast of India

Sivashanthini, K.; Khan, S.A. (2004)

Growth parameters of Gerres setifer (Hamilton, 1822) in the Parangipettai waters were estimated using ELEFAN I programme. The asymptotic length (L∞) and growth coefficient (K) were found to be respectively 174.05 mm and ...
Length-weight relationship and growth pattern of Sepioteuthis lessoniana lesson 1830 (Cephalopoda: Teuthida) from the Jaffná Lagoon, Sri Lanka

Sivashanthini, K.; Charles, G.A.; Thulasitha, W.S. (Asian Network for Scientific Information, 2009)

In the present study, length-weight regression equationg were derived for male and female S. lessoniana collected from the Jaffna lagoon, Sri Lanka in order to find out the regression parameters and growth pattern of this ...
Comparative study on organoleptic, microbiological and biochemical qualities of commercially and experimentally prepared salted and sun dried talang queen fish, Scomberoides commersonianus

Sivashanthini, K.; Vivekshan Reval, S.; Thavaranjit, A.C. (Academic Journals Inc, 2012)

Talang queen fish, Scomberoides commersonianus is the most important widely used species to produce salted and sun dried fish and has high market price in Jaffna district, Sri Lanka. The present research work was carried ...
Larval development of Aedes aegypti and Aedes albopictus in peri-urban brackish water and its implications for transmission of arboviral diseases

Ramasamy, R.; Surendran, S.N.; Jude, P.J.; Dharshini, S.; Vinobaba, M. (2011-11)

Aedes aegypti (Linnaeus) and Aedes albopictus Skuse mosquitoes transmit serious human arboviral diseases including yellow fever, dengue and chikungunya in many tropical and sub-tropical countries. Females of the two species ...
Global climate change and its potential impact on disease transmission by salinity-tolerant mosquito vectors in coastal zones

Ramasamy, R.; Surendran, S.N. (2012-06)

Global climate change can potentially increase the transmission of mosquito vector-borne diseases such as malaria, lymphatic filariasis, and dengue in many parts of the world. These predictions are based on the effects of ...
Insecticide resistance and, efficacy of space spraying and larviciding in the control of dengue vectors Aedes aegypti and Aedes albopictus in Sri Lanka

Karunaratne, S.H.P.P.; Weeraratne, T.C.; Perera, M.D.B.; Surendran, S.N. (2013-09)

Unprecedented incidence of dengue has been recorded in Sri Lanka in recent times. Source reduction and use of insecticides in space spraying/fogging and larviciding, are the primary means of controlling the vector mosquitoes ...
Salinity-tolerant larvae of mosquito vectors in the tropical coast of Jaffna, Sri Lanka and the effect of salinity on the toxicity of Bacillus thuringiensis to Aedes aegypti larvae

Jude, P.J.; Tharmasegaram, T.; Sivasubramaniyam, G.; Senthilnanthanan, M.; Kannathasan, S.; Raveendran, S.; Ramasamy, R.; Surendran, S.N. (2012)

Dengue, chikungunya, malaria, filariasis and Japanese encephalitis are common mosquito-borne diseases endemic to Sri Lanka. <em>Aedes aegypti</em> and <em>Aedes albopictus</em>, the major vectors of dengue, were recently ...
Anopheles culicifacies breeding in brackish waters in Sri Lanka and implications for malaria control

Jude, P.J.; Dharshini, S.; Vinobaba, M.; Surendran, S.N.; Ramasamy, R. (Jude et al; licensee BioMed Central Ltd, 2010)

Background. Anopheles culicifacies is the major vector of both falciparum and vivax malaria in Sri Lanka, while Anopheles subpictus and certain other species function as secondary vectors. In Sri Lanka, An. culicifacies ...

Now showing items 81-100 of 107

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