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dc.contributor.author	V. Martínez
dc.contributor.author	F. Abascal
dc.contributor.author	M. V. Esteller
dc.contributor.author	L. Bibiano
dc.contributor.author	S. Bulbulian
dc.creator	V. Martínez
dc.creator	F. Abascal
dc.creator	M. V. Esteller
dc.creator	L. Bibiano
dc.creator	S. Bulbulian
dc.date	2002
dc.date.accessioned	2016-03-16T17:17:33Z
dc.date.available	2016-03-16T17:17:33Z
dc.identifier	http://www.redalyc.org/articulo.oa?id=56841410
dc.identifier.uri	http://hdl.handle.net/20.500.11799/39350
dc.description	Guadalupe Reservoir, on the San Cayetano river, feeds into the Lerma river about 18 km north of Toluca in the State of Mexico, Mexico. On August 9, 1995, more than 6000 Israeli carp (Cyprinus carpio v. specularis and rubrofruscus) died within a week in this reservoir. We investigated the cause of the fish mortality and we determined whether the reservoir could be used again for carp culture. Five days after the accident the residual chlorine was 4 times higher than the maximum permissible amount. Ammonia nitrogen, biochemical oxygen demand (BOD) and chemical oxygen demand (COD) were also above the recommended levels. Six months later, the amount of some contaminants in the water, such as chlorine, were back to normal ranges of water quality criteria for aquaculture. Ammonia, BOD and COD concentrations were lower to those found in the previous analyses but remained higher than the recommended levels. Most probably, residual chlorine was the cause of carp mortality as the chlorine level was very high when the fishes died.
dc.format	application/pdf
dc.language	eng
dc.publisher	Universidad Nacional Autónoma de México
dc.relation	http://www.redalyc.org/revista.oa?id=568
dc.rights	openAcess
dc.rights	Geofísica Internacional
dc.source	Geofísica Internacional (México) Num.4 Vol.41
dc.subject	Ciencias de la Tierra
dc.subject	Water
dc.subject	pollution
dc.subject	carp
dc.subject	ammonia
dc.subject	free-residual chlorine
dc.title	Water quality in a reservoir used for carp production
dc.type	Artículo
dc.provenance	Científica
dc.road	Dorada

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