| Energetics of osmoregulation: I. Oxygen consumption by Fundulus heteroclitus. | |
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MedLine Citation:
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PMID: 16493647 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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We have developed a flow-through method for measuring oxygen consumption in fish which allows continuous monitoring over periods of days with good accuracy. Our goal was to determine the changes in basal metabolic rate in estuarine fish as a function of salinity. We show that in Fundulus heteroclitus, the oxygen consumption drops by 50% during the first 12 hr in the respirometer, as the fish cease exploratory movements. We have determined the influence of temperature and body size on resting respiratory rate, but failed to find any circadian or tidal rhythm in aerobic respiration. With these variables controlled, we determined that changing from 10 to 30 ppt water had no demonstrable effect on oxygen uptake. Since there must be a large change in osmotic flux due to this change in salinity, it appears that the fish might be diverting energy from other uses rather than increasing aerobic energy production to meet the increased osmoregulatory work load. |
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Authors:
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George W Kidder; Christopher W Petersen; Robert L Preston |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Journal of experimental zoology. Part A, Comparative experimental biology Volume: 305 ISSN: 1548-8969 ISO Abbreviation: J. Exp. Zoolog. Part A Comp. Exp. Biol. Publication Date: 2006 Apr |
Date Detail:
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Created Date: 2006-02-27 Completed Date: 2006-05-02 Revised Date: 2009-10-05 |
Medline Journal Info:
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Nlm Unique ID: 101168223 Medline TA: J Exp Zool A Comp Exp Biol Country: United States |
Other Details:
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Languages: eng Pagination: 309-17 Citation Subset: IM |
Affiliation:
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Mt. Desert Island Biological Laboratory, Salisbury Cove, Maine 04672, USA. gkidder@mdibl.org |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animals Body Size Circadian Rhythm Energy Metabolism* Fundulidae / physiology* Monitoring, Physiologic Osmosis Oxygen Consumption* Respiration Temperature Time Factors Water-Electrolyte Balance* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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