Southern hemisphere humpback whale lipid-adjusted blubber and skin biopsy data used for bulk stable isotope analysis to evaluate methodology utilized for long-term dietary monitoring
Blubber and skin are commonly used tissues in stable isotope analysis for the purpose of investigating cetacean diet. Critical comparison of tissue-specific isotopic signals is, however, lacking resulting in uncertainty surrounding the representativeness and therefore utility of different tissues fo...
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ftgriffithuniv:oai:research-repository.griffith.edu.au:10072/411770 2024-06-09T07:46:36+00:00 Southern hemisphere humpback whale lipid-adjusted blubber and skin biopsy data used for bulk stable isotope analysis to evaluate methodology utilized for long-term dietary monitoring Eggebo, June Groβ, Jasmin Bengtson Nash, Susan 2008-06-01 to 2018-10-31 North Stradbroke Island, southeast Queensland, Australia (approximately 27°26 S, 153°34 E) 2022 .xlsx Excel Spreadsheet http://hdl.handle.net/10072/411770 https://doi.org/10.25904/1912/4431 https://www.griffith.edu.au/data-request English eng Griffith University https://www.griffith.edu.au/ http://hdl.handle.net/10072/411770 doi:10.25904/1912/4431 https://www.griffith.edu.au/data-request Authors own copyright in the work. Contact for access rights: s.bengtsonnash@griffith.edu.au Ecological Applications Blubber Foraging ecology Lipids Sentinel parameter Skin Trophic biology Stable Isotopes Carbon Nitrogen Dataset 2022 ftgriffithuniv https://doi.org/10.25904/1912/4431 2024-05-14T23:50:45Z Blubber and skin are commonly used tissues in stable isotope analysis for the purpose of investigating cetacean diet. Critical comparison of tissue-specific isotopic signals is, however, lacking resulting in uncertainty surrounding the representativeness and therefore utility of different tissues for accurate determination of recent foraging. Paired blubber and skin biopsy samples were collected from free-swimming southern hemisphere humpback whales in SE Queensland Australia between 2008 and 2018 as part of long-term monitoring under the Humpback Whale Sentinel Program. A total of 171 paired biopsies were included in this study, were the authors recorded migration direction (north or south) and sex (male or female). Both tissues were treated for lipid correction: blubber was applied a solvent lipid extraction; a modified methanol-dichloromethane-water method, whilst skin was applied a mathematical mass-balance model for lipid correction. Significant differences were observed for both δ13C and δ15N between lipid-extracted blubber and lipid-corrected skin tissue, flagging previously undocumented methodological considerations, and the need for method validation and standardisation in application of these approaches. This study therefore advances methodological aspects of cetacean dietary analysis. This is of elevated importance in the context of rapidly changing ocean ecosystems. School of Environment and Science - Ecology and Evolution No Full Text Dataset Humpback Whale Griffith University: Griffith Research Online Queensland |
institution |
Open Polar |
collection |
Griffith University: Griffith Research Online |
op_collection_id |
ftgriffithuniv |
language |
English |
topic |
Ecological Applications Blubber Foraging ecology Lipids Sentinel parameter Skin Trophic biology Stable Isotopes Carbon Nitrogen |
spellingShingle |
Ecological Applications Blubber Foraging ecology Lipids Sentinel parameter Skin Trophic biology Stable Isotopes Carbon Nitrogen Eggebo, June Groβ, Jasmin Bengtson Nash, Susan Southern hemisphere humpback whale lipid-adjusted blubber and skin biopsy data used for bulk stable isotope analysis to evaluate methodology utilized for long-term dietary monitoring |
topic_facet |
Ecological Applications Blubber Foraging ecology Lipids Sentinel parameter Skin Trophic biology Stable Isotopes Carbon Nitrogen |
description |
Blubber and skin are commonly used tissues in stable isotope analysis for the purpose of investigating cetacean diet. Critical comparison of tissue-specific isotopic signals is, however, lacking resulting in uncertainty surrounding the representativeness and therefore utility of different tissues for accurate determination of recent foraging. Paired blubber and skin biopsy samples were collected from free-swimming southern hemisphere humpback whales in SE Queensland Australia between 2008 and 2018 as part of long-term monitoring under the Humpback Whale Sentinel Program. A total of 171 paired biopsies were included in this study, were the authors recorded migration direction (north or south) and sex (male or female). Both tissues were treated for lipid correction: blubber was applied a solvent lipid extraction; a modified methanol-dichloromethane-water method, whilst skin was applied a mathematical mass-balance model for lipid correction. Significant differences were observed for both δ13C and δ15N between lipid-extracted blubber and lipid-corrected skin tissue, flagging previously undocumented methodological considerations, and the need for method validation and standardisation in application of these approaches. This study therefore advances methodological aspects of cetacean dietary analysis. This is of elevated importance in the context of rapidly changing ocean ecosystems. School of Environment and Science - Ecology and Evolution No Full Text |
format |
Dataset |
author |
Eggebo, June Groβ, Jasmin Bengtson Nash, Susan |
author_facet |
Eggebo, June Groβ, Jasmin Bengtson Nash, Susan |
author_sort |
Eggebo, June |
title |
Southern hemisphere humpback whale lipid-adjusted blubber and skin biopsy data used for bulk stable isotope analysis to evaluate methodology utilized for long-term dietary monitoring |
title_short |
Southern hemisphere humpback whale lipid-adjusted blubber and skin biopsy data used for bulk stable isotope analysis to evaluate methodology utilized for long-term dietary monitoring |
title_full |
Southern hemisphere humpback whale lipid-adjusted blubber and skin biopsy data used for bulk stable isotope analysis to evaluate methodology utilized for long-term dietary monitoring |
title_fullStr |
Southern hemisphere humpback whale lipid-adjusted blubber and skin biopsy data used for bulk stable isotope analysis to evaluate methodology utilized for long-term dietary monitoring |
title_full_unstemmed |
Southern hemisphere humpback whale lipid-adjusted blubber and skin biopsy data used for bulk stable isotope analysis to evaluate methodology utilized for long-term dietary monitoring |
title_sort |
southern hemisphere humpback whale lipid-adjusted blubber and skin biopsy data used for bulk stable isotope analysis to evaluate methodology utilized for long-term dietary monitoring |
publisher |
Griffith University |
publishDate |
2022 |
url |
http://hdl.handle.net/10072/411770 https://doi.org/10.25904/1912/4431 https://www.griffith.edu.au/data-request |
op_coverage |
2008-06-01 to 2018-10-31 North Stradbroke Island, southeast Queensland, Australia (approximately 27°26 S, 153°34 E) |
geographic |
Queensland |
geographic_facet |
Queensland |
genre |
Humpback Whale |
genre_facet |
Humpback Whale |
op_relation |
https://www.griffith.edu.au/ http://hdl.handle.net/10072/411770 doi:10.25904/1912/4431 https://www.griffith.edu.au/data-request |
op_rights |
Authors own copyright in the work. Contact for access rights: s.bengtsonnash@griffith.edu.au |
op_doi |
https://doi.org/10.25904/1912/4431 |
_version_ |
1801376559567732736 |