Browsing Zoology by Title

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Aedes larval bionomics and implications for dengue control in the paradigmatic Jafna peninsula, northern Sri Lanka

Surendran, S.N.; Jayadas, T.T.P.; Thiruchenthooran, V.; Raveendran, S.; Tharsan, A.; Sharanga, S.; Kokila, S.; Suthakar, K.; Bharathy, Ponnaiah; Laksiri, G.; Malavige, G.N.; Ranjan, R. (Aedes larval bionomics and implications for dengue control in the paradigmatic Jafna peninsula, northern Sri Lanka, 2021)

Abstract Background: The larval bionomics of Aedes across the Jafna peninsula in northern Sri Lanka was investigated to obtain information needed for developing more efective larval source reduction measures to control ...
The Anopheles culicifacies and An subpictus species complexes in Sri Lanka and their implications for malaria control in the country

Surendran, S.N.; Ramasamy, R. (The Japanese Society of Tropical Medicine, 2010)

Anopheles culicifacies, the major vector of malaria in Srilanka, and An.subpictus, a secondary vectory, exist as species complexes in the country. Among the globally reported five sibling species(A-E) of the An.culicifacies ...
The anopheles culicifacies and an. subpictus species complexes in Sri Lanka and their implications for Malaria control in the country

Surendran, S.N.; Ramasamy, R (The Japanese Society of Tropical Medicine., 2010)

Anopheles culicifacies, the major vector of malaria in Sri Lanka, and An. subpictus, a secondary vector, exist as species complexes in the country. Among the globally reported five sibling species (A-E) of the An. culicifacies ...
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 ...
Anopheles culicifacies sibling species B and E in Sri Lanka differ in longevity and in their susceptibility to malaria parasite infection and common insecticides

Surendran, S.N.; Ramasamy, M.S; De Silva, B.G.D.N.K; Ramasamy, R (The Royal Entomological Society, 2006)

Members of the Anopheles culicifacies Giles complex (Diptera: Culicidae) are well established as the predominant vectors of malaria in Sri Lanka. Until recently, only sibling species B was reported to be present in Sri ...
Anopheles culicifacies Y-chromosome dimorphism indicates sibling species (b and e) with different malaria vector potential in Sri Lanka

Surendran, S.N.; Abhayawardana, T.A; De Silva, B.G.D.N.K; Ramasamy, R; Ramasamy, M.S (2000)

In Sri Lanka, malaria is transmitted mainly by Anopheles culicifacies Giles sensu lato (Diptera: Culicidae). In India, this nominal taxon comprises sibling species A, B, C, D and E, distinguished by their chromosome ...
Anopheline bionomics, insecticide resistance and transnational dispersion in the context of controlling a possible recurrence of malaria transmission in Jaffna city in northern Sri Lanka

Surendran, S.N.; Jayadas, T.T.P.; Tharsan, A.; Thiruchenthooran, V.; Santhirasegaram, S.; Sivabalakrishnan, K.; Raveendran, S.; Ramasamy, R. (Parasites and Vectors, 2020)

Background: Malaria was eliminated from Sri Lanka in 2013. However, the infux of infected travelers and the pres ence of potent anopheline vectors can re-initiate transmission in Jafna city, which is separated by a narrow ...
Anthropogenic Factors Driving Recent Range Expansion of the Malaria Vector Anopheles stephensi

Surendran, S.N.; Kokila, S.; Arthiyan, S.; Jayadas, T.P.P.; Karvannan, K.; Sharanga, S.; Gajapathy, K.; Meena, S.; Parakrma Karunaratne, S.H.P.; Ranjan, R. (Frontiers in Public Health, 2019)

The malaria vector Anopheles stephensi is found in wide tracts of Asia and the Middle East. The discovery of its presence for the first time in the island of Sri Lanka in 2017, poses a threat of malaria resurgence in a ...
Assessment of water quality in the selected village tanks (Peraru Tank, Nochchimoddai Tank and Mamaduwa Tank) in Vavuniya district

Samarawickrama, R.A.D.; Nanthakumaran, A.; Sivakumar, P. (University of Vavuniya, 2022)

Peraru, Nochchimoddai and Mamaduwa are the three village tanks lying in a cascade line in Vavuniya district. The water resource of Peraru village reservoir was treated by National Water Supply and Drainage Board of ...
Biological Differences between Brackish and Fresh Water-Derived Aedes aegypti from Two Locations in the Jaffna Peninsula of Sri Lanka and the Implications for Arboviral Disease Transmission

Ramasamy, R.; Jude, P.J.; Veluppillai, T.; Eswaramohan, T.; Surendran, S.N. (PLOS ONE, 2014)

The mainly fresh water arboviral vector Aedes aegypti L. (Diptera: Culicidae) can also undergo pre-imaginal development in brackish water of up to 15 ppt (parts per thousand) salt in coastal areas. We investigated differences ...
Bionomic aspects of the Anopheles subpictus species complex in Sri Lanka

Pavillupillai, J.J.; Ramasamy, R.; Surendran, S.N. (2014)

Anopheles subpictus Grassi s.l. (Diptera: Culicidae) functions as a secondary malaria vector to Anopheles culicifacies Giles s.l. (Diptera: Culicidae) in Sri Lanka. The taxon A. subpictus is reported to exist as a species ...
Changes in the composition of host haemolymph after attack by an insect parasitoid

Fisher, R.C; Ganesalingam, V.K (Nature Publishing Group, 1970)

MANY insect parasitoids are capable of distinguishing whether their prospective hosts are healthy or whether the hosts already contain a parasitoid larva of the same or a different species. In many cases discrimination is ...
The clinical profle, hematological parameters and liver transaminases of dengue NS1 Ag positive patients admitted to Jafna Teaching Hospital, Sri Lanka

Jayadas, T. T. P.; Kumanan, T.; Arasaratnam, V.; Gajapathy, K.; Surendran, S.N. (BMC Research notes, 2019)

Objective: Objective of the study is to evaluate the on-admission day symptoms and signs, clinical, hematological parameters and liver transaminases of the dengue NS1 positive patients who got admitted on diferent clinical ...
The clinical profle, hematological parameters and liver transaminases of dengue NS1 Ag positive patients admitted to Jafna Teaching Hospital, Sri Lanka

Jayadas, T. T. P.; Kumanan, T.; Arasaratnam, V.; Gajapathy, K.; Surendran, S.N. (University of Jaffna, 2019)

Objective of the study is to evaluate the on-admission day symptoms and signs, clinical, hematological parameters and liver transaminases of the dengue NS1 positive patients who got admitted on diferent clinical phases ...
Comparative characterization of two cxcl8 homologs in oplegnathus fasciatus: Genomic, transcriptional and functional analyses

Thulasitha, W.S.; Umasuthan, N.; Bathige, S.D.N.K.; Oh, M.; Lee, J. (Biomolecules, 2020)

CXCL8 (interleukin-8, IL-8) is a CXC family chemokine that recruits specific target cells and mediates inflammation and wound healing. This study reports the identification and characterization of two cxcl8 homologs from ...
Comparative characterization of two cxcl8 homologs in oplegnathus fasciatus: genomic, transcriptional and functional analyses

Umasuthan, N.; Bathige, S.D.N.K.; Thulasitha, W.S.; Oh, M.; Lee, J. (University of Jaffna, 2020)

CXCL8 (interleukin-8, IL-8) is a CXC family chemokine that recruits specific target cells and mediates inflammation and wound healing. This study reports the identification and characterization of two cxcl8 homologs from ...
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 ...
Current Status of Marine Snakes from Jaffna Peninsula, Sri Lanka with Description of Hitherto Unrecorded Hydrophis fasciatus fasciatus (Schneider, 1799) [2008]

Abyerami, K.; Sivashanthini, K. (2008)

As only a few study reported on sea snakes of Sri Lanka, a study was undertaken from June 2003 to November 2004 in the coast of Jaffna Peninsula which lies in the Northern part of Sri Lanka. Out of the 121 specimens examined, ...
Dengue Incidence and Aedes Vector Collections in Relation to COVID-19 Population Mobility Restrictions

Surendran, S.N.; Nagulan, R.; Tharsan, A.; Kokila, S.; Ranjan, R. (Tropical Medicine And Infectious Disease Journal, 2022)

Contrary to expectation, dengue incidence decreased in many countries during the period when stringent population movement restrictions were imposed to combat COVID-19. Using a sea sonal autoregressive integrated moving ...
Description of sandfly (diptera: Psychodidae: Phlebotominae) species from genus Sergentomyia (Franca and parrot, 1920) in Sri Lanka

Gajapathy, K; Surendran, S.N. (Academic Journals Inc, 2012)

Leishmaniasis, mainly Cutaneous Leishmaniasis (CL), is a major public health concern in Sri Lanka. Although, the vector for any form of the disease is yet to be clearly discriminated in the country, a limited study reported ...

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