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	Provedor de dados Animal Sciences (1) Ciência Rural (1) Neotropical Ichthyology (1) Autor Baldisserotto,Bernardo (2) Copatti,Carlos Eduardo (2) Baldisserotto, Bernardo; UFSM (1) Becker,Alexssandro Geferson (1) Brinn,Richard Philip (1) Chagas,Edsandra Campos (1) Copatti, Carlos Eduardo; UNICRUZ (1) Cunha, Mauro Alves; UFSM (1) Cunha,Mauro Alves da (1) Garcia, Luciano de Oliveira; FURG (1) Garcia,Luciano de Oliveira (1) Gomes,Levy Carvalho (1) Kochhann, Daiani; INPA (1) Kochhann,Daiani (1) Roubach,Rodrigo (1) Mais... Palavra-chave Acidic water (3) Alkaline water (2) Amazon River (1) Calcium (1) Dietary NaCl (1) Dietary NaCl acidic water (1) Growth (1) Ion flux (1) Mortality (1) Negro River (1) Rhamdia quelen (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Análise laboratorial (1) Ano 2011 (2) 2009 (1) País Brazil (3) Idioma Inglês (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Calcium fluxes in Hoplosternum littorale (tamoatá) exposed to different types of Amazonian waters Neotropical Ichthyology Baldisserotto,Bernardo; Copatti,Carlos Eduardo; Gomes,Levy Carvalho; Chagas,Edsandra Campos; Brinn,Richard Philip; Roubach,Rodrigo. Fishes that live in the Amazonian environment may be exposed to several kinds of waters: "black waters", containing high dissolved organic carbon and acidic pH, "white waters", with ten fold higher Ca2+ concentrations than black waters and neutral pH, and "clear waters", with two fold higher Ca2+ concentrations than black waters and also neutral pH. Therefore, the aim of the present study was to analyze Ca2+ fluxes in the facultative air-breather Hoplosternum littorale (tamoatá) exposed to different Amazonian waters. Fishes were acclimated in well water (similar to clear water) and later placed in individual chambers for Ca2+ fluxes measurements. After 4 h, water from the chambers was replaced by a different type of water. Transfer of tamoatás to ion-poor... Tipo: Info:eu-repo/semantics/article Palavras-chave: Ion flux; Negro River; Amazon River; Acidic water. Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252009000300014 Dietary salt and water pH effects on growth and Na+ fluxes of silver catfish juveniles - doi: 10.4025/actascianimsci.v33i3.11192 Animal Sciences Copatti, Carlos Eduardo; UNICRUZ; Garcia, Luciano de Oliveira; FURG; Kochhann, Daiani; INPA; Cunha, Mauro Alves; UFSM; Baldisserotto, Bernardo; UFSM. This study verified the optimum dietary salt level for the growth and ion regulation of silver catfish juveniles at different water pH levels (5.5, 7.0 and 9.0). The control diet was supplemented with NaCl to yield experimental diets with 0.5, 1.0 and 2.0% NaCl. Juveniles were collected at 15 and 35 days after the beginning of experiment for analyses of Na+ net fluxes. Exposure of silver catfish juveniles to alkaline or acidic water did not affect their survival. Fish fed with diets without NaCl supplementation and exposed to pH 7.0 showed significantly higher weight, length, specific growth rate and biomass per tank than those exposed to pH 5.5. Ionoregulatory disturbances of silver catfish maintained at all pH are less pronounced when fed higher dietary... Tipo: Análise laboratorial Palavras-chave: Acidic water; Alkaline water; Dietary NaCl acidic water; Alkaline water; Dietary NaCl. Ano: 2011 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/11192 Low water hardness and pH affect growth and survival of silver catfish juveniles Ciência Rural Copatti,Carlos Eduardo; Garcia,Luciano de Oliveira; Kochhann,Daiani; Cunha,Mauro Alves da; Becker,Alexssandro Geferson; Baldisserotto,Bernardo. The objective of this study was to investigate the effects of exposure to low water hardness (0, 25 and 50mg CaCO3L-1) into the 6.0-8.0 pH range to silver catfish juveniles (Rhamdia quelen) survival and growth after 32 days. Juveniles kept at zero water hardness presented higher mortality at pH 7.0 and 8.0 than those submitted to other treatments. Weight of juveniles exposed to pH 6.0 and zero water hardness was significantly higher than those kept at the same water hardness and other pH. Survival and growth of juveniles exposed to 25 and 50mg CaCO3 L-1 was not affected in the 6.0-8.0 pH range. Therefore, the best water hardness for silver catfish juveniles growth is 25-50mg CaCO3 L-1 and at low water hardness (next zero) pH must be reduced. Tipo: Info:eu-repo/semantics/article Palavras-chave: Acidic water; Alkaline water; Calcium; Growth; Mortality; Rhamdia quelen. Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782011000800030 Registros recuperados: 3 Primeira ... 1 ... Última

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