Combining stereo‐video monitoring and physiological trials to estimate reef fish metabolic demands in the wild
Abstract Organismal metabolic rates (MRs) are the basis of energy and nutrient fluxes through ecosystems. In the marine realm, fishes are some of the most prominent consumers. However, their metabolic demand in the wild (field MR [FMR]) is poorly documented, because it is challenging to measure dire...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2022-07-01
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| Series: | Ecology and Evolution |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/ece3.9084 |
| _version_ | 1818002088454520832 |
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| author | Nina M. D. Schiettekatte Francesca Conte Beverly French Simon J. Brandl Christopher J. Fulton Alexandre Mercière Tommy Norin Sébastien Villéger Valeriano Parravicini |
| author_facet | Nina M. D. Schiettekatte Francesca Conte Beverly French Simon J. Brandl Christopher J. Fulton Alexandre Mercière Tommy Norin Sébastien Villéger Valeriano Parravicini |
| author_sort | Nina M. D. Schiettekatte |
| collection | DOAJ |
| description | Abstract Organismal metabolic rates (MRs) are the basis of energy and nutrient fluxes through ecosystems. In the marine realm, fishes are some of the most prominent consumers. However, their metabolic demand in the wild (field MR [FMR]) is poorly documented, because it is challenging to measure directly. Here, we introduce a novel approach to estimating the component of FMR associated with voluntary activity (i.e., the field active MR [AMRfield]). Our approach combines laboratory‐based respirometry, swimming speeds, and field‐based stereo‐video systems to estimate the activity of individuals. We exemplify our approach by focusing on six coral reef fish species, for which we quantified standard MR and maximum MR (SMR and MMR, respectively) in the laboratory, and body sizes and swimming speeds in the field. Based on the relationships between MR, body size, and swimming speeds, we estimate that the activity scope (i.e., the ratio between AMRfield and SMR) varies from 1.2 to 3.2 across species and body sizes. Furthermore, we illustrate that the scaling exponent for AMRfield varies across species and can substantially exceed the widely assumed value of 0.75 for SMR. Finally, by scaling organismal AMRfield estimates to the assemblage level, we show the potential effect of this variability on community metabolic demand. Our approach may improve our ability to estimate elemental fluxes mediated by a critically important group of aquatic animals through a non‐destructive, widely applicable technique. |
| first_indexed | 2024-04-14T03:42:16Z |
| format | Article |
| id | doaj.art-658ce6322f3b4fa9a68ec1c89734fb96 |
| institution | Directory Open Access Journal |
| issn | 2045-7758 |
| language | English |
| last_indexed | 2024-04-14T03:42:16Z |
| publishDate | 2022-07-01 |
| publisher | Wiley |
| record_format | Article |
| series | Ecology and Evolution |
| spelling | doaj.art-658ce6322f3b4fa9a68ec1c89734fb962022-12-22T02:14:28ZengWileyEcology and Evolution2045-77582022-07-01127n/an/a10.1002/ece3.9084Combining stereo‐video monitoring and physiological trials to estimate reef fish metabolic demands in the wildNina M. D. Schiettekatte0Francesca Conte1Beverly French2Simon J. Brandl3Christopher J. Fulton4Alexandre Mercière5Tommy Norin6Sébastien Villéger7Valeriano Parravicini8PSL Université Paris: EPHE‐UPVD‐CNRS USR 3278 CRIOBE, Université de Perpignan Perpignan FrancePSL Université Paris: EPHE‐UPVD‐CNRS USR 3278 CRIOBE, Université de Perpignan Perpignan FranceCenter for Marine Biodiversity and Conservation Scripps Institution of Oceanography, University of California San Diego California USAPSL Université Paris: EPHE‐UPVD‐CNRS USR 3278 CRIOBE, Université de Perpignan Perpignan FranceAustralian Institute of Marine Science Indian Ocean Marine Research Centre Crawley Western Australia AustraliaPSL Université Paris: EPHE‐UPVD‐CNRS USR 3278 CRIOBE, Université de Perpignan Perpignan FranceDTU Aqua: National Institute of Aquatic Resources Technical University of Denmark Kgs. Lyngby DenmarkMARBEC, Université de Montpellier CNRS, IFREMER, IRD Montpellier FrancePSL Université Paris: EPHE‐UPVD‐CNRS USR 3278 CRIOBE, Université de Perpignan Perpignan FranceAbstract Organismal metabolic rates (MRs) are the basis of energy and nutrient fluxes through ecosystems. In the marine realm, fishes are some of the most prominent consumers. However, their metabolic demand in the wild (field MR [FMR]) is poorly documented, because it is challenging to measure directly. Here, we introduce a novel approach to estimating the component of FMR associated with voluntary activity (i.e., the field active MR [AMRfield]). Our approach combines laboratory‐based respirometry, swimming speeds, and field‐based stereo‐video systems to estimate the activity of individuals. We exemplify our approach by focusing on six coral reef fish species, for which we quantified standard MR and maximum MR (SMR and MMR, respectively) in the laboratory, and body sizes and swimming speeds in the field. Based on the relationships between MR, body size, and swimming speeds, we estimate that the activity scope (i.e., the ratio between AMRfield and SMR) varies from 1.2 to 3.2 across species and body sizes. Furthermore, we illustrate that the scaling exponent for AMRfield varies across species and can substantially exceed the widely assumed value of 0.75 for SMR. Finally, by scaling organismal AMRfield estimates to the assemblage level, we show the potential effect of this variability on community metabolic demand. Our approach may improve our ability to estimate elemental fluxes mediated by a critically important group of aquatic animals through a non‐destructive, widely applicable technique.https://doi.org/10.1002/ece3.9084activityactivity scopefield metabolic ratefishmetabolic scalingmetabolism |
| spellingShingle | Nina M. D. Schiettekatte Francesca Conte Beverly French Simon J. Brandl Christopher J. Fulton Alexandre Mercière Tommy Norin Sébastien Villéger Valeriano Parravicini Combining stereo‐video monitoring and physiological trials to estimate reef fish metabolic demands in the wild Ecology and Evolution activity activity scope field metabolic rate fish metabolic scaling metabolism |
| title | Combining stereo‐video monitoring and physiological trials to estimate reef fish metabolic demands in the wild |
| title_full | Combining stereo‐video monitoring and physiological trials to estimate reef fish metabolic demands in the wild |
| title_fullStr | Combining stereo‐video monitoring and physiological trials to estimate reef fish metabolic demands in the wild |
| title_full_unstemmed | Combining stereo‐video monitoring and physiological trials to estimate reef fish metabolic demands in the wild |
| title_short | Combining stereo‐video monitoring and physiological trials to estimate reef fish metabolic demands in the wild |
| title_sort | combining stereo video monitoring and physiological trials to estimate reef fish metabolic demands in the wild |
| topic | activity activity scope field metabolic rate fish metabolic scaling metabolism |
| url | https://doi.org/10.1002/ece3.9084 |
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