Journal article
Treading water: Respirometer choice may hamper comparative studies of energetics in fishes
Marine and Freshwater Research, Vol.70(3), pp.437-448
2018
Abstract
Measuring the metabolic rate of animals is an essential part of understanding their ecology, behaviour and life history. Respirometry is the standard method of measuring metabolism in fish, but different respirometry methods and systems can result in disparate measurements of metabolic rate, a factor often difficult to quantify. Here we directly compare the results of two of the most common respirometry systems used in elasmobranch studies, a Steffensen-style flume respirometer and an annular static respirometer. Respirometry trials with juvenile lemon sharks Negaprion brevirostris were run in both systems under the same environmental conditions and using the same individuals. Relationships between metabolic rate, swimming speed, overall dynamic body acceleration (ODBA) and tail beat frequency (TBF) were compared between the two systems. The static respirometer elicited higher TBF and ODBA for a given swimming speed compared with the flume respirometer, although it produced relationships between kinematic parameters that were more similar to those observed in free-swimming animals. Metabolic rates and swimming speeds were higher for the flume respirometer. Therefore, although flume respirometers are necessary for many types of controlled laboratory studies, static respirometers may elicit lower stress and produce results that are more applicable to fish in wild systems.
Details
- Title
- Treading water: Respirometer choice may hamper comparative studies of energetics in fishes
- Authors/Creators
- K.O. Lear (Author/Creator) - Mote Marine LaboratoryN.M. Whitney (Author/Creator) - New England AquariumL.R. Brewster (Author/Creator) - Murdoch UniversityA.C. Gleiss (Author/Creator) - Murdoch University
- Publication Details
- Marine and Freshwater Research, Vol.70(3), pp.437-448
- Publisher
- CSIRO Publishing
- Identifiers
- 991005543632307891
- Copyright
- © 2018 CSIRO
- Murdoch Affiliation
- Harry Butler Institute
- Language
- English
- Resource Type
- Journal article
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- Collaboration types
- Domestic collaboration
- International collaboration
- Citation topics
- 3 Agriculture, Environment & Ecology
- 3.2 Marine Biology
- 3.2.116 Aquaculture Nutrition
- Web Of Science research areas
- Fisheries
- Limnology
- Marine & Freshwater Biology
- Oceanography
- ESI research areas
- Plant & Animal Science