Data

Data for: Gastric lavage of sharks and rays

James Cook University
Myers, Jaelen ; Barnett, Adam ; Sheaves, Marcus
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ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=info:doi10.25903/jp5r-9z85&rft.title=Data for: Gastric lavage of sharks and rays&rft.identifier=10.25903/jp5r-9z85&rft.publisher=James Cook University&rft.description=Background [Extract]: Stomach content analysis (SCA) is a fundamental technique for studying trophic ecology of marine organisms. Traditionally, lethal stomach dissection has been used to study diets of sharks and rays, but conservation and animal welfare concerns necessitate non-lethal alternatives. Gastric lavage involves flushing the stomachs of live animals without killing them. Although it has been used on various species over the past 40 years, efficiency and post-release survival of individuals have not been comprehensively assessed. Methods [Extract]: We summarised gastric lavage studies on elasmobranchs to identify which species/groups it has been effective for, the difficulties encountered, and if post-release survival has been evaluated. Secondly, we use a field study to 1) demonstrate how to perform gastric lavage on juvenile rays 2) assess its effectiveness and 3) verify post-release survival using mark-recapture techniques. This data record contains:  .txt file containing literature review references .xlsx file containing gastric lavage data from the field study (also saved in .ods format) A more detailed description of the methodology and results is available in the related publication. A literature review was done in 2024 to summarise the use of non-lethal gastric lavage on shark and ray species. A field study was also conducted on four juvenile ray species (Himantura australis, Glaucostegus typus, Maculabatis toshi, and Pastinachus ater) to assess efficiency of gastric lavage for juvenile rays and verify post-release survival and animal welfare using tag-recapture methods.&rft.creator=Myers, Jaelen &rft.creator=Barnett, Adam &rft.creator=Sheaves, Marcus &rft.date=2025&rft.relation=https://doi.org/10.1111/jfb.70006&rft.coverage=Lucinda Beach, N QLD&rft.coverage=Blacksoil Creek, South of Townsville, N QLD&rft_rights=&rft_rights=CC BY 4.0: Attribution 4.0 International http://creativecommons.org/licenses/by/4.0&rft_subject=gastric lavage&rft_subject=stomach flush&rft_subject=tag-recapture&rft_subject=diet&rft_subject=juvenile ray&rft_subject=Marine and estuarine ecology (incl. marine ichthyology)&rft_subject=Ecology&rft_subject=BIOLOGICAL SCIENCES&rft_subject=Other biological sciences not elsewhere classified&rft_subject=Other biological sciences&rft_subject=Assessment and management of coastal and estuarine ecosystems&rft_subject=Coastal and estuarine systems and management&rft_subject=ENVIRONMENTAL MANAGEMENT&rft.type=dataset&rft.language=English Access the data
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CC BY 4.0: Attribution 4.0 International
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Brief description

A literature review was done in 2024 to summarise the use of non-lethal gastric lavage on shark and ray species. A field study was also conducted on four juvenile ray species (Himantura australis, Glaucostegus typus, Maculabatis toshi, and Pastinachus ater) to assess efficiency of gastric lavage for juvenile rays and verify post-release survival and animal welfare using tag-recapture methods.

Full description

Background [Extract]: Stomach content analysis (SCA) is a fundamental technique for studying trophic ecology of marine organisms. Traditionally, lethal stomach dissection has been used to study diets of sharks and rays, but conservation and animal welfare concerns necessitate non-lethal alternatives. Gastric lavage involves flushing the stomachs of live animals without killing them. Although it has been used on various species over the past 40 years, efficiency and post-release survival of individuals have not been comprehensively assessed.

Methods [Extract]: We summarised gastric lavage studies on elasmobranchs to identify which species/groups it has been effective for, the difficulties encountered, and if post-release survival has been evaluated. Secondly, we use a field study to 1) demonstrate how to perform gastric lavage on juvenile rays 2) assess its effectiveness and 3) verify post-release survival using mark-recapture techniques.

This data record contains:

  •  .txt file containing literature review references
  • .xlsx file containing gastric lavage data from the field study (also saved in .ods format)

A more detailed description of the methodology and results is available in the related publication.

Created: 2025-12-31

Data time period: 11 2022 to 31 08 2024

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Spatial Coverage And Location

text: Lucinda Beach, N QLD

text: Blacksoil Creek, South of Townsville, N QLD

Subjects
Assessment and Management of Coastal and Estuarine Ecosystems | Biological Sciences | Coastal and Estuarine Systems and Management | Environmental Management | Ecology | Marine and Estuarine Ecology (Incl. Marine Ichthyology) | Other Biological Sciences | Other Biological Sciences Not Elsewhere Classified | diet | gastric lavage | juvenile ray | stomach flush | tag-recapture |

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Identifiers
  • DOI : 10.25903/JP5R-9Z85
  • Local : researchdata.jcu.edu.au//published/f33afab06b4c11ef9c50897db45a2811