scholarly journals Microplastics in beach sand and potential contamination of planktivorous fish Sardinella gibbosa inhabiting in coastal waters of Negombo, Sri Lanka

2021 ◽  
Vol 26 (1) ◽  
pp. 37
Author(s):  
R. R. M. K. P. Ranatunga ◽  
D. S. Wijetunge ◽  
K. P. R. Karunarathna
Keyword(s):  
Sri Lanka ◽  
Coastal Waters ◽  
Planktivorous Fish ◽  
Beach Sand ◽  
Sardinella Gibbosa

scholarly journals The Processing of Beach Sand from Sri Lanka for the Recovery of Titanium Using Magnetic Separation

2003 ◽  
Vol 12 (1) ◽  
pp. 13-22 ◽  
Author(s):  
W. A. P. J. Premaratne ◽  
N. A. Rowson
Keyword(s):  
Particle Size ◽  
Sri Lanka ◽  
Chemical Analysis ◽  
Titanium Content ◽  
Beach Sand ◽  
Magnetic Fraction ◽  
Chemical Characteristics ◽  
Magnetic Separator ◽  
Commercial Grade ◽  
Sand Deposit

An investigation has been carried out to study the mineralogical and chemical characteristics of beach sand deposits from Sri Lanka and application and optimisation of different magnetic separators (induced roll magnetic separator and disc magnetic separator) to improve the recovery of titanium from the deposit. Commercial grade titanium concentrates could be achieved employing both induced roll and disc magnetic separators. However, the titanium recovery increased greatly in the magnetic fraction with a titanium content of commercial grade (up to 63.9% TiO2) when paramagnetic titanium-bearing minerals were separated from beach sand using the disc magnetic separator. The results of the mineralogical and chemical analysis tests for the beach sand deposit indicated that 71% of beach sand was smaller than 355 μm in particle size and more than 99% of titanium content of the deposit was contained in this fraction.

scholarly journals Abundance and diversity of sea cucumbers in point pedro coastal waters in Jaffna peninsula of Sri Lanka

2016 ◽  
Vol 27 (2) ◽  
pp. 182 ◽  
Author(s):  
K. Veronika ◽  
U. Edrisinghe ◽  
K. Sivashanthini ◽  
A. R. S. B. Athauda
Keyword(s):  
Sri Lanka ◽  
Coastal Waters ◽  
Sea Cucumbers ◽  
Abundance And Diversity

scholarly journals Conservation and sustainable use of biodiversity in the islands and lagoons of northern Sri Lanka

2020 ◽  
Author(s):  
Devaka Weerakoon ◽  
Sampath De A. Goonatilake ◽  
Tharanga Wijewickrama ◽  
Arjan Rajasuriya ◽  
Naalin Perera ◽  
...  
Keyword(s):  
Civil War ◽  
Sri Lanka ◽  
Coastal Waters ◽  
Sustainable Use ◽  
Terrestrial Ecosystems ◽  
Northern Province ◽  
Biodiversity Assessment ◽  
Rapid Biodiversity Assessment ◽  
Palk Bay ◽  
The Government

After the 30-year long civil war was over, the Government of Sri Lanka commenced an accelerated programme to develop the Northern Province. If not carefully planned, such a programme will result in the loss of biodiversity and the consequent loss of services that ecosystems provide humans. Therefore, documenting the biodiversity found within coastal, nearshore and offshore islands of the Northern Province was identified as a need that would help both planners and conservation biologists alike. This report presents the results of a rapid biodiversity assessment of a 949 km stretch from Mannar to the Kokkilai Lagoon, including 22 coastal islands, five coastal stretches and four lagoons, extending across four districts (Jaffna, Mannar, Kilinochchi and Mullaittivu), 20 Divisional Secretariats Divisions and 264 Grama Niladhari Divisions. For terrestrial ecosystems, assessments were carried out during November 2015 and March 2016, and for marine surveys in the coastal waters of Palk Bay and Palk Strait, during November 2015 and March 2016.

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