| dc.contributor.author |
Asanka, U. |
en_US |
| dc.contributor.author |
Jayasinghe, D. |
en_US |
| dc.contributor.author |
Amarasinghe, U.S. |
en_US |
| dc.contributor.author |
de Silva, S.S. |
en_US |
| dc.date.accessioned |
2014-11-19T04:53:20Z |
|
| dc.date.available |
2014-11-19T04:53:20Z |
|
| dc.date.issued |
2005 |
|
| dc.identifier.uri |
http://repository.kln.ac.lk/handle/123456789/4370 |
|
| dc.description.abstract |
The aim of this study was to check the suitability of some trophic models developed for temperate regions to classify the non-perennial reservoirs of Sri Lanka in order to manage culture-based fisheries of those reservoirs. A limnological study was carried out in 45 non-perennial reservoirs, which have been randomly selected for stocking of fish fingerlings for the development of culture-based fisheries. High total phosphorous (TP) content in relation to algal biomass indicates high non-algal turbidity in all reservoirs. Carlson's trophic state indices (TSI) measured on the basis of Secchi disc depth [TSI (SDD)], TP [TSI (TP)] and chlorophyll a [TSI (Chl-a)] show that the 45 reservoirs studied are characterized by TSI (TP) = TSI (SDD) > TSI (Chl-a), indicating that non-algal particulate matter or colour dominates underwater light attenuation. As TSI (Chl-a) is positively correlated to culture-based fisheries yield, it is useful for planning culture-based fisheries development strategies in non-perennial reservoirs of Sri Lanka, and has the potential to be used elsewhere in the tropics for comparable developments. (? 2005 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim) |
en_US |
| dc.publisher |
International Review of Hydrobiology |
en_US |
| dc.title |
Trophic Classification of Non-Perennial Reservoirs Utilized for the Development of Culture-Based Fisheries, Sri Lanka |
|
| dc.type |
article |
en_US |
| dc.identifier.department |
Fisheries Biology and Aquaculture |
en_US |