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http://hdl.handle.net/10553/1202
Título: | The effect of food on the respiration rates of Daphnia magna using a flow-through system | Otros títulos: | El efecto del alimento sobre las tasas de respiración de Daphnia Magna mediante el uso de un sistema abierto | Autores/as: | Schmoker, Claire Hernandez-Leon, S |
Clasificación UNESCO: | 251001 Oceanografía biológica | Palabras clave: | Diel Vertical Migration Copepod Acartia-Tonsa Dynamic Action Sda Egg-Production Metabolic-Rate, et al. |
Fecha de publicación: | 2003 | Publicación seriada: | Scientia Marina | Resumen: | Respiration rates and gut fluorescence of the cladoceran Daphnia magna were studied using a flow-through system. This open system has the advantage of introducing food or producing a starvation effect during the course of the experiment. Severe variations in respiratory rates were observed in relation to the presence or absence of food, indicating short-term variability. Organisms kept starved or at low food for a long period (15-20 h) responded to a sudden increase in food by increasing their respiration rates three- to four-fold in parallel with their gut content. A significant relationship between gut fluorescence and respiration rates was observed, suggesting that feeding and the related swimming activity were responsible for the observed metabolic variability. | URI: | http://hdl.handle.net/10553/1202 | ISBN: | 2148358 | ISSN: | 0214-8358 | DOI: | 10.3989/scimar.2003.67n3361 | Fuente: | Scientia Marina [ISSN 0214-8358], v. 67 (3), p. 361-365, (Septiembre 2003) |
Colección: | Artículos |
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