Effects of pH on Egg Hatchability, Survival Rate and Growth Rate of Yolk Sac Larvae of Goldfish (Caressius auratus)

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dc.contributor.authorGunasinghe, K.Y
dc.contributor.authorLiyanage, N.P.P
dc.contributor.authorde Silva, D.P.N
dc.contributor.authorEpasinghe, M
dc.date.accessioned2021-02-03T09:06:32Z
dc.date.available2021-02-03T09:06:32Z
dc.date.issued2012
dc.description.abstractOrnamental fish trade is a global industry of significant economic importance. For a developing country like Sri Lanka if managed sustainably, fresh water ornamental fish trade can generate employment opportunities as well as foreign exchange (BOBP, 2000). Goldfish [Carassius auralus) is a well known freshwater ornamental fish, which is among the most popular freshwater fishes throughout the won Id. Water quality parameters have profound e££ect on fish’s biological and physiological factors. For successful fish culture proper management of water quality parameters are required as they are crucial for larval survival and growth (Zaniboni-Filho, cl at., 2008: , Smam and Bundell, 1996: Lloyd and JorJan, 1964 cited in Gao, e/ o/., 20 I I). pH, potential hydrogen ion concentration is sucl1 an important water quality parameter in aquaculture. Fresh water ornamental fish culturists in Sri Lanka uses water from different water sources * such as tap water, underground water and surface water sources like rivers, streams, reservoirs, tanks. Due to different climatologic and geographic factors, pH value of above fresh water sources may differ froi i each other (SiIva and Manuweera, 2004). Most of the fresh water sources in Sri Lanka are having pH range of 5.4 -9.0 (Silva, 2004: Kotagama, e/ o/., \ 989). The ma in objective of this study is to find out the effects of water pH on egg hatch ability, survival rate and growth rate of yolk sae larvae of goldfish and to identify the most suitable water pH range for gold fish culture.en_US
dc.identifier.issn2235-9877
dc.identifier.urihttp://www.erepo.lib.uwu.ac.lk/bitstream/handle/123456789/5769/26-2012-Effect%20of%20PH%20Egg%20Hatchability%2c%20Survival%20Rate%20and%20Growth%20Rate%20of%20Yolk%20Sac%20Larvae%20of%20Goldfish%20%28Carassius%20auratus%29.pdf?sequence=1&isAllowed=y
dc.language.isoenen_US
dc.publisherUva Wellassa University of Sri Lankaen_US
dc.relation.ispartofseries;Research Symposium
dc.subjectFisheries Managementen_US
dc.subjectAquaculture & Fisheriesen_US
dc.subjectCapture Fisheriesen_US
dc.titleEffects of pH on Egg Hatchability, Survival Rate and Growth Rate of Yolk Sac Larvae of Goldfish (Caressius auratus)en_US
dc.title.alternativeResearch Symposium 2012en_US
dc.typeOtheren_US
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