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Browsing ZSA 2020 by Issue Date

Browsing ZSA 2020 by Issue Date

Now showing items 1-14 of 14

Evaluation of the acute toxicity of profenofos and its effects on the behavioural pattern of genetically improved farmed Tilapia Fingerlings. [Oreochromis niloticus (Linnaeaus., 1758)].

Dayananda, N.G.; Surendran, S.N. (University of Jaffna, 2020)

Profenofos is an organophosphate insecticide which acts as acetylcholinesterase inhibitor. It is a potential contaminant to the aquatic ecosystems which can effect on non-targeted organisms including fish. The aim of this ...
Establishement and characterization of spleen cell lines by using Balb/c mice as a model.

Amarasinghe, A.A.K.P.; Eswaramohan,T. (University of Jaffna, 2020)

The spleen is the largest secondary lymphoid organ in the body and it has a complex cell composition because of the immunocytes' maturity and settling down. Changes in the composition of immunocytes are critical to immune ...
Toxicological effects of Napthalene on the early development of Zerrafish ((Danio rerio).

Vithushi, K.; Thulasitha, W.S. (University of Jaffna, 2020)

Polycyclic aromatic hydrocarbons and their derivatives constitute a large proportion present in diesel or crude oil and are identified as one of the major aquatic pollutants of which naphthalene (Nap) is one of the important ...
A Study on mating compatibility of the biotypes of Anopheles stephensi.

Liyanagedara, N.; Surendran, S.N. (University of Jaffna, 2020)

Malaria is a mosquito-borne disease that severely affects tropical and subtropical countries in Africa, Asia, and American continents. In 2017, Anopheles stephensi, a major malaria vector of urban malaria in Asia, was first ...
Survey and identification of Lobsters in Pointpedro coastal water, Jaffna, Northern Province, Sri Lanka

Kirillawala, K.A.L.K.J.; Sivakumar, P. (University of Jaffna, 2020)

Lobsters are one of the economically important marine crustacean groups occupying variety of habitats. They have a great demand in the domestic market as a delicacy and is a foreign exchange earner for the country. In Sri ...
Morphological variations among the russell's vipers (Daboia russelii, SHAW AND NODDER, 1796) in the Jaffna peninsula.

Abeyaweera, N.; Abyerami, S.; Murugananthan, A. (University of Jaffna, 2020)

The Russell’s viper is a venomous snake with greater medical importance that belongs to the family: Viperidae. The reptile shows discontinuous distribution over Southeast Asian regions, and also shows diverse clinical ...
Addressing the impacts of climate emergency and building resilence in post-war northern Province, Sri Lanka.

Sujeevan, T.; Nivetha, S.; Karthiga, U.; Rakulan, N.; Navaprasanth, R.; Stalini, M.; Sankavi, K.; Shribavan, K.; Suren, S.N.; Prabu (University of Jaffna, 2020)

Sri Lanka ranks second among the ten countries most affected by extreme weather events recorded since 1998 according to the Climate Risk Index 2019. The Northern and Eastern provinces are among the most vulnerable to impacts ...
Assessing the evolution of Sri Lankan sandfly species belong to genus Sergentomyia using cytochrome C Oxidase subunit I (CO 1) partial sequence

Salomi, A.; Gajapathy, K. (University of Jaffna, 2020)

Sandflies are vectors of Leishmania parasites that cause Leishmaniasis in human. The taxonomy of sandflies and their vector potential have not been comprehensively documented. This study aimed to assess the evolution of ...
Diversity of HETEROPTERAN FAUNA in farmlands at Thirunelvely, Jaffna, Sri Lanka.

Hasna, M.A.F.; Gnaneswaran, R. (University of Jaffna, 2020)

The Heteroptera represents the highest and most diverse group of insects. Many of them become significant pests in crop plants. Some are predaceous in habit. This research study was aimed to document terrestrial heteropteran ...
Preliminary study on thelarvicidal activity of Acalypha indica stem extracts on second instar larvae of Aedes aegypti.

Madhusanka, H.G.D.; Surendran, S.N.; Senthilanathan, M. (University of Jaffna, 2020)

Mosquito-borne diseases have become a rising major concern in many countries in the tropics and subtropics. Sri Lanka has been endemic for many mosquito-borne diseases including dengue which is transmitted by Aedes aegypti. ...
Fyke net fishery and population parametrers of shrimps in the COlumbuththurai landing site of Jaffna Lagoon, Sri Lanka

Naafir, E.M.; Ragavan, N.; Thapeetha, Y.; Sivashanthini, K. (University of Jaffna, 2020)

This study evaluates the fyke net fishery and population parameters of shrimps inhabiting in the Jaffna lagoon. Catch effort and shrimp morphometric data were collected at Columbuththurai landing site from August 2018 to ...
Species composition and diversity of terrestrial insects associated with Mandathivu mangrove ecosystem, Northern Provice, Sri Lanaka

Wijewantha, G.W.A.L.K.; Gnaneswaran, R. (University of Jaffna, 2020)

Mangrove ecosystem is one of the most productive ecosystems with a hard environment that supports the survival of both terrestrial and aquatic inhabitants of various vertebrates and invertebrates including insects. Insects ...
Assessment of selected water quality parameters in Kakkaitheevu lagoon, Jaffna, Sri Lanka.

Fernando, A.S.R.; Shobiya, P.; Ragavan, N.; Sivashanthini, K. (University of Jaffna, 2020)

Kakkaitheevu is part of the Jaffna lagoon and is known for its fish production. The area consists of sewerage and solid waste disposal plant. The objective of the study was to investigate the changes in selected physical, ...
Identification of Benthic Macroinvertibrate fauna in mangroves, Mandathivu area, Jaffna.

Gamage, I.D. (University of Jaffna, 2020)

Species abundance and diversity of mangrove macrobenthic invertebrate fauna and their relationship to environmental conditions are important to understand the structure and function of mangrove ecosystems. Mangrove litter ...

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