Faculty of Science: Recent submissions

Now showing items 301-320 of 655

Microscopic staging system used in the identification of gonad developmental stages of scomberoides iysan

Thulasitha, W.S.; Sivashanthini, K. (University of Jaffna, 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 ...
Marketing channels and intermediaries in gurunagar fish market, jaffna, sri lanka

Shobiya, P.; Uventhikka, S.; Sivagini, K.; Amarathunga, A.M.H.D.; Gobykrishanth, R.; Fernando, A.S.R.; Sivashanthini, K. (Research Gate, 2020)

Gurunagar market is one of the busiest and prominent landing site fish market in Jaffna peninsula. It is vital to know the current status and marketing efficiency in order to enhance and develop the existing marketing ...
Lipid changes in relation to maturation and spawning of tropical double spotted queenfish, scomberoides iysan (Forsskål, 1775)

Sathyaruban, S.; Kuganathan, S.; Thulasitha, W.S. (University of Jaffna, 2013)

The present study was undertaken to understand the lipid changes in gonad, muscle and liver tissues of tropical double spotted queen fish, Scomberoides lysan (Family: Carangidae) in relation to sexual maturity and spawning. ...
Microbial abundance reference to t]he e.coii in the water column at casurina reef, jaffna nothern, sri lanka

Sankalpa, D.M.R.; Kuganathan, S.; Thavaranjith, A.C. (Research Gate, 2018)

Coral reefs ecosystems are sensitive to global changes in climate and human activities. The relationship between microbial activity and chemical substances available in the water column due to sensitt've process from climate ...
Quantification and Categorization of Marine Debris in Charty beach, Jaffna, Sri Lanka.

Thennakoon, T.M.D.L.; Shobiya, P.; Sivashanthini, K. (Proceedings of Technological Advances in Science, Medicine and Engineering Conference, 2021)

Marine debris is a well-known problem in Sri Lanka, where it has a significant effect on the marine ecosystem and biodiversity.This is the first quantitative study of macro marine debris (>2.5cm) in terms of materialtype, ...
Determination of chitin content in shells of selected crab species available in Jaffna

Thapeetha, Y.; Digamadulla, K.M.D.S.; Sashikesh, G.; Sivashanthini, K. (University of Jaffna, 2020)

—In the post-war context, Jaffna crab industry is developed, exporting live, fresh de-shelled and processed crabs all around the world. Human consumes only 40% of the crab’s weight as meat and the rest is thrown into the ...
Contribution of Women in Fisheries and Fishery Related Activities in Ponnalai, Jaffna, Sri Lanka

Nilakshana, K.; Shobiya, P.; Dilini, J.G.B. D.; Ragavan, N.; Sivashanthini, K.; Sutharshiny., S. (University of Jaffna, 2021)

Women’s involvement in fisheries seems to be largely invisible and unacknowledged in Jaffna Peninsula. Thus, the present study was conducted in Ponnalai village to determine the active participation of women in fisheries, ...
Seasonal Hydro-Climatic Consequences on Fish Harvests in the Vavuniya Reservoir, Sri Lanka

Patrick, A.E.S.; Kuganathan, S. (University of Jaffna, 2016)

Vavuniya reservoir is a tropical lowland shallow irrigation tank located in Vavuniya District, Northern Province, Sri Lanka.As it is situated in the dry zone, experiencing the water scarcity probably due to the climate ...
Algal Dominance and Impacts of Tourism on Coral Reefs in Casurina Beach, Karainagar Island, Jaffna Peninsula, Sri Lanka

Ashani, A.; Herath, H.M.V.G.; Sivashanthini, K.; Kumara, W.A.A.U.; Harishchandra, A. (University of Jaffna, 2018)

Coral reefs at Casurina beach in the Karainagar Island of Jaffna peninsula, Sri Lanka are among the most heavily explored destinations for coastal tourism. We investigated the impact of algal overrunning and tourism on ...
Socio-economic status of fishers in Allaipiddy village, Jaffna

Ragavan, N.; Sivashanthini, K.; Sutharshiny, S. (University of Jaffna, 2016)

The present study was carried out in Allaipiddy for a period of eight months from June 2014 to January 2015. The socio-economic data of randomly selected 53 fishermen was obtained through pre-tested structured questionnaire, ...
Abundance and Diversity of Sea cucumbers in Point Pedro Coastal Waters in Jaffna Peninsula of Sri Lanka

Veronika, K.; Edrisinghe, U.; Sivashanthini, K.; Athauda, A.R.S.B. (University of Jaffna, 2015)

Sea cucumbers are fascinating and commercially valuable species belong to Class Holothuroidea. The present study was conducted with the aim of documenting the species composition and diversity of sea cucumber population ...
Potential natural carotenoid sources for the colouration of ornamental fish: A review

Sathyaruban, S.; Uluwaduge, D.I.; Yohi, S.; Kuganathan, S. (University of Jaffna, 2021)

Attractive colouration of ornamental fishes is an important quality criterion in the aquarium fish industry. Ornamental fish cannot synthesize colour-producing carotenoid pigments and therefore must rely on dietary carotenoids ...
Quantification and Categorization of Marine Debris in Charty beach, Jaffna, Sri Lanka.

Thennakoon, T.M.D.L.; Shobiya, P.; Sivashanthini, K. (University of Jaffna, 2021)

Marine debris is a well-known problem in Sri Lanka, where it has a significant effect on the marine ecosystem and biodiversity.This is the first quantitative study of macro marine debris (>2.5cm) in terms of materialtype, ...
Important physico-chemical parameters and sediment characteristics of some selected sites in the Jaffna estuary

Sivashanthini, K.; Sutharshiny, S.; Gunaalan, K.; Tharmine, A.; Veronika, K.; digamadulla, K.M.D.S. (University of Jaffna, 2016)

The present study was carried out to investigate the spatial variation of physico - chemical parameters and sediment characteristics in some areas of the Jaffna estuary in order to assess the differences among sites with ...
Formulation of alternative culture media for bacterial and fungal growth

Uthayasooriyan, M.; Pathmanathan, S.; Ravimannan, N.; Sathyaruban, S. (University of Jaffna, 2016)

The microorganisms are grown for many purposes. Culture media used in the laboratory for the cultivation of microorganism supply the nutrients required for the growth and maintenance. Nutrient agar (NA) is universally ...
Fuel subsidy in sri lanka fisheries: data analysis and possible improvements

Ragavan, N. (University of Jaffna, 2018)

Fisheries subsidy is defined as direct or indirect financial assistance to the fishing sector from the government or public organisations. In 2012 and 2013, the Sri Lankan government issued fuel subsidy to motorised ...
Determination of freshness quality changes using selective methods: A comparative study for eclipse parrotfish (Scarus russelii) and spangled emperor (Lethrinus nebulosus)

Sutharshiny, S.; Shobana, C.; Sivashanthini, K. (University of Jaffna, 2021)

The present study was carried out to determine freshness quality and remaining storage time of eclipse parrotfish and spangled emperor stored in ice on days 0, 2, 3, 5, 7, 9, 12, 15, 19 and 21 using selective methods. A ...
Contribution of women in fisheries and fishery related activities in ponnalai, jaffna, sri lanka

Nilakshana, K.; Shobiya, P.; Dilini, J.G.B.D.; Ragavan, N.; Sivashanthini, K.; Sutharshiny, S. (University of Jaffna, 2021)

Women’s involvement in fisheries seems to be largely invisible and unacknowledged in Jaffna Peninsula. Thus, the present study was conducted in Ponnalai village to determine the active participation of women in fisheries, ...
A study on characteristics of sediment feature of mangrove

Saruga, S.; Sivashanthini, K.; Sutharshiny, S. (University of Jaffna, 2018)

This paperemphasize the major sediment characteristics of mangrove ecosystem. For this survey two locations such as Sarasaalai and Kapputhu were chosen. Grain-size distribution, physicochemical parameters and organic ...
Variations in important water quality parameters and fish species of thondaimanaru lagoon, jaffna, sri lanka

Shobiya, P.; Sivashanthini, K.; Sutharshiny, S.; Gunaalan, K. (University of Jaffna, 2018)

Thondaimanaru lagoon is one of the shallow coastal lagoons in Jaffna peninsula. This study was conducted to assess the present status of water quality and fish species composition of this lagoon. Water sampling was ...

Now showing items 301-320 of 655

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