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Iosilevskii G, Kong JD, Meyer CG, Watanabe YY, Papastamatiou YP, Royer MA, Nakamura I, Sato K, Doyle TK, Harman L, Houghton JDR, Barnett A, Semmens JM, Maoiléidigh NÓ, Drumm A, O'Neill R, Coffey DM, Payne NL. A general swimming response in exhausted obligate swimming fish. R Soc Open Sci 2022. [PMID: 36147936 DOI: 10.5061/dryad.7pvmcvdv4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Marine organisms normally swim at elevated speeds relative to cruising speeds only during strenuous activity, such as predation or escape. We measured swimming speeds of 29 ram ventilating sharks from 10 species and of three Atlantic bluefin tunas immediately after exhaustive exercise (fighting a capture by hook-and-line) and unexpectedly found all individuals exhibited a uniform mechanical response, with swimming speed initially two times higher than the cruising speeds reached approximately 6 h later. We hypothesized that elevated swimming behaviour is a means to increase energetic demand and drive the removal of lactate accumulated during capture via oxidation. To explore this hypothesis, we estimated the mechanical work that must have been spent by an animal to elevate its swim speed and then showed that the amount of lactate that could have been oxidized to fuel it comprises a significant portion of the amount of lactate normally observed in fishes after exhaustive exercise. An estimate for the full energetic cost of the catch-and-release event ensued.
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Affiliation(s)
- G Iosilevskii
- Department of Aerospace Engineering, Technion Haifa, 32000 Israel
| | - J D Kong
- School of Natural Sciences, Trinity College Dublin, Dublin, Ireland
| | - C G Meyer
- Hawaii Institute of Marine Biology, University of Hawaii, Kaneohe, HI 96744, USA
| | - Y Y Watanabe
- National Institute of Polar Research, Tachikawa, Japan
| | - Y P Papastamatiou
- Biological Sciences, Florida International University, Miami, FL 33180, USA
| | - M A Royer
- Hawaii Institute of Marine Biology, University of Hawaii, Kaneohe, HI 96744, USA
| | - I Nakamura
- Organization for Marine Science and Technology, Nagasaki University, Nagasaki, Nagasaki 851-2213, Japan
| | - K Sato
- International Coastal Research Center, Atmosphere and Ocean Research Institute, University of Tokyo, Iwate, Japan
| | - T K Doyle
- Zoology, Ecology and Plant Science, Environmental Research Institute, University College Cork, Cork T23 XE10, Ireland
| | - L Harman
- Zoology, Ecology and Plant Science, Environmental Research Institute, University College Cork, Cork T23 XE10, Ireland
| | - J D R Houghton
- Biological Sciences, Queen's University Belfast, Belfast, County Antrim BT9 7BL, UK
| | - A Barnett
- James Cook University, Cairns, Queensland, Australia
| | - J M Semmens
- Institute of Marine and Antarctic Studies, University of Tasmania, Hobart, Tasmania 7001, Australia
| | | | - A Drumm
- Marine Institute, Newport, County Mayo, Ireland
| | - R O'Neill
- Marine Institute, Newport, County Mayo, Ireland
| | - D M Coffey
- Hawaii Institute of Marine Biology, University of Hawaii, Kaneohe, HI 96744, USA
| | - N L Payne
- School of Natural Sciences, Trinity College Dublin, Dublin, Ireland
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Iosilevskii G, Kong JD, Meyer CG, Watanabe YY, Papastamatiou YP, Royer MA, Nakamura I, Sato K, Doyle TK, Harman L, Houghton JDR, Barnett A, Semmens JM, Maoiléidigh NÓ, Drumm A, O'Neill R, Coffey DM, Payne NL. A general swimming response in exhausted obligate swimming fish. R Soc Open Sci 2022; 9:211869. [PMID: 36147936 PMCID: PMC9490326 DOI: 10.1098/rsos.211869] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 08/25/2022] [Indexed: 05/08/2023]
Abstract
Marine organisms normally swim at elevated speeds relative to cruising speeds only during strenuous activity, such as predation or escape. We measured swimming speeds of 29 ram ventilating sharks from 10 species and of three Atlantic bluefin tunas immediately after exhaustive exercise (fighting a capture by hook-and-line) and unexpectedly found all individuals exhibited a uniform mechanical response, with swimming speed initially two times higher than the cruising speeds reached approximately 6 h later. We hypothesized that elevated swimming behaviour is a means to increase energetic demand and drive the removal of lactate accumulated during capture via oxidation. To explore this hypothesis, we estimated the mechanical work that must have been spent by an animal to elevate its swim speed and then showed that the amount of lactate that could have been oxidized to fuel it comprises a significant portion of the amount of lactate normally observed in fishes after exhaustive exercise. An estimate for the full energetic cost of the catch-and-release event ensued.
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Affiliation(s)
- G. Iosilevskii
- Department of Aerospace Engineering, Technion Haifa, 32000 Israel
| | - J. D. Kong
- School of Natural Sciences, Trinity College Dublin, Dublin, Ireland
| | - C. G. Meyer
- Hawaii Institute of Marine Biology, University of Hawaii, Kaneohe, HI 96744, USA
| | | | | | - M. A. Royer
- Hawaii Institute of Marine Biology, University of Hawaii, Kaneohe, HI 96744, USA
| | - I. Nakamura
- Organization for Marine Science and Technology, Nagasaki University, Nagasaki, Nagasaki 851-2213, Japan
| | - K. Sato
- International Coastal Research Center, Atmosphere and Ocean Research Institute, University of Tokyo, Iwate, Japan
| | - T. K. Doyle
- Zoology, Ecology and Plant Science, Environmental Research Institute, University College Cork, Cork T23 XE10, Ireland
| | - L. Harman
- Zoology, Ecology and Plant Science, Environmental Research Institute, University College Cork, Cork T23 XE10, Ireland
| | - J. D. R. Houghton
- Biological Sciences, Queen's University Belfast, Belfast, County Antrim BT9 7BL, UK
| | - A. Barnett
- James Cook University, Cairns, Queensland, Australia
| | - J. M. Semmens
- Institute of Marine and Antarctic Studies, University of Tasmania, Hobart, Tasmania 7001, Australia
| | | | - A. Drumm
- Marine Institute, Newport, County Mayo, Ireland
| | - R. O'Neill
- Marine Institute, Newport, County Mayo, Ireland
| | - D. M. Coffey
- Hawaii Institute of Marine Biology, University of Hawaii, Kaneohe, HI 96744, USA
| | - N. L. Payne
- School of Natural Sciences, Trinity College Dublin, Dublin, Ireland
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Royer MA, Meiers JC. Shear bond strength of resin to acid/pumice-microabraded enamel. Oper Dent 1995; 20:155-9. [PMID: 8700784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
The effect of enamel microabrasion techniques consisting of either 18% hydrochloric acid in pumice or a commercially available abrasive/10% hydrochloric acid mixture, PREMA, on composite/enamel shear bond strengths was investigated. Sixty extracted third molars had the bonding surface flattened and were divided into six treatment groups (n=10) with the enamel treated prior to bonding as follows: Group 1-- untreated; Group 2--37% phosphoric acid etched for 30 seconds; Group 3--18% hydrochloric acid/pumice mixture applied for five 20-second treatments; Group 4--similar to Group 3 with additional 37% phosphoric acid etch; Group 5--treated with PREMA compound applied for five 20-second treatments; Group 6--similar to Group 5 treatment with additional 37% phosphoric acid. Herculite XR composite resin was then bonded to all samples using a VLC unit. Samples were tested in shear, and fractured enamel surfaces were evaluated using light microscopy to determine the enamel-to-resin failures. Resin bond strengths to microabraded and H3PO4-etched enamel were similar to bond strengths of untreated H3PO4-etched enamel and were significantly better than bond strengths to PREMA-treated or unetched enamel.
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Affiliation(s)
- M A Royer
- National Naval Dental Center, Naval Dental School, Bethesda, MD 20889-5602, USA
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