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DC Field | Value | Language |
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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 |
Appears in Collections: | Zoology |
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