Effect of body size and temperature on respiration of Galaxias maculatus (Pisces: Galaxiidae)
| Autor: | David A. Beauchamp, Daniela Milano, Pablo H. Vigliano |
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| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
Otras Ciencias Biológicas Ontogeny Zoology chemistry.chemical_element BODY MASS Aquatic Science 010603 evolutionary biology 01 natural sciences Oxygen GALAXIAS MACULATUS Ciencias Biológicas Galaxias maculatus Respirometry Respiration BIOENERGETICS MODELLING TEMPERATURE Ecology Evolution Behavior and Systematics Water Science and Technology Ecology biology 010604 marine biology & hydrobiology Galaxiidae biology.organism_classification PATAGONIA RESPIRATION chemistry Ectotherm Respiration rate CIENCIAS NATURALES Y EXACTAS |
| Zdroj: | New Zealand Journal of Marine and Freshwater Research. 51:295-303 |
| ISSN: | 1175-8805 0028-8330 |
| Popis: | Body mass and temperature are primary determinants of metabolic rate in ectothermic animals. Oxygen consumption of post-larval Galaxias maculatus was measured in respirometry trials under different temperatures (5–21 °C) and varying body masses (0.1–>1.5 g) spanning a relevant range of thermal conditions and sizes. Specific respiration rates (R in g O2 g−1 d−1) declined as a power function of body mass and increased exponentially with temperature and was expressed as: R = 0.0007 * W −0.31 * e 0.13 * T. The ability of this model to predict specific respiration rate was evaluated by comparing observed values with those predicted by the model. Our findings suggest that the respiration rate of G. maculatus is the result of multiple interactive processes (intrinsic and extrinsic factors) that modulate each other in ‘meta-mechanistic’ ways; this would help to explain the species’ ability to undergo the complex ontogenetic habitat shifts observed in the lakes of the Andean Patagonic range. Fil: Milano, Daniela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina. Universidad Nacional del Comahue. Centro Regional Universitario Bariloche. Laboratorio de Fotobiologia; Argentina Fil: Vigliano, Pablo Horacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina. Universidad Nacional del Comahue. Centro Regional Universitario Bariloche. Grupo de Evaluación y Manejo de Recursos Ícticos; Argentina Fil: Beauchamp, David. U.S. Geological Survey. Western Fisheries Research Center; Estados Unidos |
| Databáze: | OpenAIRE |
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