A digital dissection of two teleost fishes: comparative functional anatomy of the cranial musculoskeletal system in pike ( Esox lucius) and eel ( Anguilla anguilla)
Abstract Advances in X‐ray computed tomography ( CT ) have led to a rise in the use of non‐destructive imaging methods in comparative anatomy. Among these is contrast‐enhanced CT scanning, which employs chemical stains to visualize soft tissues. Specimens may then be ‘digitally dissected’, producing...
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crwiley:10.1111/joa.13007 2024-09-15T17:39:36+00:00 A digital dissection of two teleost fishes: comparative functional anatomy of the cranial musculoskeletal system in pike ( Esox lucius) and eel ( Anguilla anguilla) Brocklehurst, Robert Porro, Laura Herrel, Anthony Adriaens, Dominique Rayfield, Emily FP7 People: Marie-Curie Actions 2019 http://dx.doi.org/10.1111/joa.13007 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fjoa.13007 https://onlinelibrary.wiley.com/doi/pdf/10.1111/joa.13007 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/joa.13007 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Anatomy volume 235, issue 2, page 189-204 ISSN 0021-8782 1469-7580 journal-article 2019 crwiley https://doi.org/10.1111/joa.13007 2024-08-06T04:16:31Z Abstract Advances in X‐ray computed tomography ( CT ) have led to a rise in the use of non‐destructive imaging methods in comparative anatomy. Among these is contrast‐enhanced CT scanning, which employs chemical stains to visualize soft tissues. Specimens may then be ‘digitally dissected’, producing detailed, three‐dimensional digital reconstructions of the soft‐ and hard‐tissue anatomy, allowing examination of anatomical structures in situ and making accurate measurements (lengths, volumes, etc.). Here, we apply this technique to two species of teleost fish, providing one of the first comprehensive three‐dimensional (3D) descriptions of teleost cranial soft tissue and quantifying differences in muscle anatomy that may be related to differences in feeding ecology. Two species with different feeding ecologies were stained, scanned and imaged to create digital 3D musculoskeletal reconstructions: Esox lucius (Northern Pike), predominantly a suction feeder; and Anguilla anguilla (European eel), which captures prey predominantly by biting. Muscle cross‐sectional areas were calculated and compared between taxa, focusing on muscles that serve important roles in feeding. The adductor mandibulae complex – used in biting – was larger in Esox than Anguilla relative to head size. However, the overall architecture of the adductor mandibulae was also very different between the two species, with that of Anguilla better optimized for delivering forceful bites. Levator arcus palatini and sternohyoideus – which are used in suction feeding – are larger in Esox , whereas the levator operculi is larger in Anguilla . Therefore, differences in the size of functionally important muscles do not necessarily correlate neatly with presumed differences in feeding mode. Article in Journal/Newspaper Anguilla anguilla European eel Wiley Online Library Journal of Anatomy 235 2 189 204 |
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Wiley Online Library |
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English |
description |
Abstract Advances in X‐ray computed tomography ( CT ) have led to a rise in the use of non‐destructive imaging methods in comparative anatomy. Among these is contrast‐enhanced CT scanning, which employs chemical stains to visualize soft tissues. Specimens may then be ‘digitally dissected’, producing detailed, three‐dimensional digital reconstructions of the soft‐ and hard‐tissue anatomy, allowing examination of anatomical structures in situ and making accurate measurements (lengths, volumes, etc.). Here, we apply this technique to two species of teleost fish, providing one of the first comprehensive three‐dimensional (3D) descriptions of teleost cranial soft tissue and quantifying differences in muscle anatomy that may be related to differences in feeding ecology. Two species with different feeding ecologies were stained, scanned and imaged to create digital 3D musculoskeletal reconstructions: Esox lucius (Northern Pike), predominantly a suction feeder; and Anguilla anguilla (European eel), which captures prey predominantly by biting. Muscle cross‐sectional areas were calculated and compared between taxa, focusing on muscles that serve important roles in feeding. The adductor mandibulae complex – used in biting – was larger in Esox than Anguilla relative to head size. However, the overall architecture of the adductor mandibulae was also very different between the two species, with that of Anguilla better optimized for delivering forceful bites. Levator arcus palatini and sternohyoideus – which are used in suction feeding – are larger in Esox , whereas the levator operculi is larger in Anguilla . Therefore, differences in the size of functionally important muscles do not necessarily correlate neatly with presumed differences in feeding mode. |
author2 |
FP7 People: Marie-Curie Actions |
format |
Article in Journal/Newspaper |
author |
Brocklehurst, Robert Porro, Laura Herrel, Anthony Adriaens, Dominique Rayfield, Emily |
spellingShingle |
Brocklehurst, Robert Porro, Laura Herrel, Anthony Adriaens, Dominique Rayfield, Emily A digital dissection of two teleost fishes: comparative functional anatomy of the cranial musculoskeletal system in pike ( Esox lucius) and eel ( Anguilla anguilla) |
author_facet |
Brocklehurst, Robert Porro, Laura Herrel, Anthony Adriaens, Dominique Rayfield, Emily |
author_sort |
Brocklehurst, Robert |
title |
A digital dissection of two teleost fishes: comparative functional anatomy of the cranial musculoskeletal system in pike ( Esox lucius) and eel ( Anguilla anguilla) |
title_short |
A digital dissection of two teleost fishes: comparative functional anatomy of the cranial musculoskeletal system in pike ( Esox lucius) and eel ( Anguilla anguilla) |
title_full |
A digital dissection of two teleost fishes: comparative functional anatomy of the cranial musculoskeletal system in pike ( Esox lucius) and eel ( Anguilla anguilla) |
title_fullStr |
A digital dissection of two teleost fishes: comparative functional anatomy of the cranial musculoskeletal system in pike ( Esox lucius) and eel ( Anguilla anguilla) |
title_full_unstemmed |
A digital dissection of two teleost fishes: comparative functional anatomy of the cranial musculoskeletal system in pike ( Esox lucius) and eel ( Anguilla anguilla) |
title_sort |
digital dissection of two teleost fishes: comparative functional anatomy of the cranial musculoskeletal system in pike ( esox lucius) and eel ( anguilla anguilla) |
publisher |
Wiley |
publishDate |
2019 |
url |
http://dx.doi.org/10.1111/joa.13007 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fjoa.13007 https://onlinelibrary.wiley.com/doi/pdf/10.1111/joa.13007 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/joa.13007 |
genre |
Anguilla anguilla European eel |
genre_facet |
Anguilla anguilla European eel |
op_source |
Journal of Anatomy volume 235, issue 2, page 189-204 ISSN 0021-8782 1469-7580 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/joa.13007 |
container_title |
Journal of Anatomy |
container_volume |
235 |
container_issue |
2 |
container_start_page |
189 |
op_container_end_page |
204 |
_version_ |
1810481096762064896 |