dc.contributor.author |
Gunawickrama, K.B.S. |
|
dc.contributor.author |
Chandana, E.P.S. |
|
dc.date.accessioned |
2022-10-19T03:51:03Z |
|
dc.date.available |
2022-10-19T03:51:03Z |
|
dc.date.issued |
2006-09 |
|
dc.identifier.citation |
Gunawickrama,K. B. Suneetha . , Chandana , E. P. S. (2006) . Some Hydrographic aspects of Koggala Lagoon with preliminary results on distribution of the marine bivalve Saccostrea forskalli : pre-tsunami status . RUHUNA JOURNAL OF SCIENCE,1 , pp.16-23 . |
en_US |
dc.identifier.issn |
1800-279X |
|
dc.identifier.uri |
http://ir.lib.ruh.ac.lk/xmlui/handle/iruor/8926 |
|
dc.description.abstract |
Selected hydrographic parameters of Koggala lagoon over a period of four months in 2002-
2003 are reported together with the preliminary results on the distribution of a marine
bivalve within lagoon. Such data prior to the December 2004 tsunami may provide back-
ground information for comparison of post-tsunami conditions. Moderate yet significant
variation in most physico-chemical parameters was found among selected sites. Mean
salinity decreased from 34.0 ppt at the mouth to 11.4 ppt at 2150 m into the lagoon
indicating pronounced seawater influx and mixing with freshwater. Monthly inter-site
variation in salinity was statistically significant (p<0.05). The marine bivalve Saccostrea
forskalli (Chemnitz) was the dominant benthic mollusk with numbers (per m2) ranging
from 111.5±9.7 at lagoon mouth to 23.5±2.1 at 2150m inner lagoon. Density distribution
of S. forskalli was significantly correlated (p<0.05) with the overall variation in salinity
(r=0.889). Salinity-dependent colonization success of S. forskalli demonstrates the domi-
nance of marine conditions in Koggala lagoon. |
en_US |
dc.language.iso |
en |
en_US |
dc.publisher |
Sri Lanka journals online |
en_US |
dc.subject |
Koggala lagoon |
en_US |
dc.subject |
Hydrography |
en_US |
dc.subject |
Saccostrea |
en_US |
dc.subject |
Seawater influx |
en_US |
dc.subject |
Lagoon dynamics |
en_US |
dc.title |
Some Hydrographic aspects of Koggala Lagoon with preliminary results on distribution of the marine bivalve Saccostrea forskalli : pre-tsunami status |
en_US |
dc.type |
Article |
en_US |