Cargando…
Pectoral Fin of the Megamouth Shark: Skeletal and Muscular Systems, Skin Histology, and Functional Morphology
This is the first known report on the skeletal and muscular systems, and the skin histology, of the pectoral fin of the rare planktivorous megamouth shark Megachasma pelagios. The pectoral fin is characterized by three features: 1) a large number of segments in the radial cartilages; 2) highly elast...
Autores principales: | , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2014
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3897653/ https://www.ncbi.nlm.nih.gov/pubmed/24465959 http://dx.doi.org/10.1371/journal.pone.0086205 |
_version_ | 1782300275958087680 |
---|---|
author | Tomita, Taketeru Tanaka, Sho Sato, Keiichi Nakaya, Kazuhiro |
author_facet | Tomita, Taketeru Tanaka, Sho Sato, Keiichi Nakaya, Kazuhiro |
author_sort | Tomita, Taketeru |
collection | PubMed |
description | This is the first known report on the skeletal and muscular systems, and the skin histology, of the pectoral fin of the rare planktivorous megamouth shark Megachasma pelagios. The pectoral fin is characterized by three features: 1) a large number of segments in the radial cartilages; 2) highly elastic pectoral fin skin; and 3) a vertically-rotated hinge joint at the pectoral fin base. These features suggest that the pectoral fin of the megamouth shark is remarkably flexible and mobile, and that this flexibility and mobility enhance dynamic lift control, thus allowing for stable swimming at slow speeds. The flexibility and mobility of the megamouth shark pectoral fin contrasts with that of fast-swimming sharks, such as Isurus oxyrhinchus and Lamna ditropis, in which the pectoral fin is stiff and relatively immobile. |
format | Online Article Text |
id | pubmed-3897653 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2014 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-38976532014-01-24 Pectoral Fin of the Megamouth Shark: Skeletal and Muscular Systems, Skin Histology, and Functional Morphology Tomita, Taketeru Tanaka, Sho Sato, Keiichi Nakaya, Kazuhiro PLoS One Research Article This is the first known report on the skeletal and muscular systems, and the skin histology, of the pectoral fin of the rare planktivorous megamouth shark Megachasma pelagios. The pectoral fin is characterized by three features: 1) a large number of segments in the radial cartilages; 2) highly elastic pectoral fin skin; and 3) a vertically-rotated hinge joint at the pectoral fin base. These features suggest that the pectoral fin of the megamouth shark is remarkably flexible and mobile, and that this flexibility and mobility enhance dynamic lift control, thus allowing for stable swimming at slow speeds. The flexibility and mobility of the megamouth shark pectoral fin contrasts with that of fast-swimming sharks, such as Isurus oxyrhinchus and Lamna ditropis, in which the pectoral fin is stiff and relatively immobile. Public Library of Science 2014-01-21 /pmc/articles/PMC3897653/ /pubmed/24465959 http://dx.doi.org/10.1371/journal.pone.0086205 Text en © 2014 Tomita et al http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited. |
spellingShingle | Research Article Tomita, Taketeru Tanaka, Sho Sato, Keiichi Nakaya, Kazuhiro Pectoral Fin of the Megamouth Shark: Skeletal and Muscular Systems, Skin Histology, and Functional Morphology |
title | Pectoral Fin of the Megamouth Shark: Skeletal and Muscular Systems, Skin Histology, and Functional Morphology |
title_full | Pectoral Fin of the Megamouth Shark: Skeletal and Muscular Systems, Skin Histology, and Functional Morphology |
title_fullStr | Pectoral Fin of the Megamouth Shark: Skeletal and Muscular Systems, Skin Histology, and Functional Morphology |
title_full_unstemmed | Pectoral Fin of the Megamouth Shark: Skeletal and Muscular Systems, Skin Histology, and Functional Morphology |
title_short | Pectoral Fin of the Megamouth Shark: Skeletal and Muscular Systems, Skin Histology, and Functional Morphology |
title_sort | pectoral fin of the megamouth shark: skeletal and muscular systems, skin histology, and functional morphology |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3897653/ https://www.ncbi.nlm.nih.gov/pubmed/24465959 http://dx.doi.org/10.1371/journal.pone.0086205 |
work_keys_str_mv | AT tomitataketeru pectoralfinofthemegamouthsharkskeletalandmuscularsystemsskinhistologyandfunctionalmorphology AT tanakasho pectoralfinofthemegamouthsharkskeletalandmuscularsystemsskinhistologyandfunctionalmorphology AT satokeiichi pectoralfinofthemegamouthsharkskeletalandmuscularsystemsskinhistologyandfunctionalmorphology AT nakayakazuhiro pectoralfinofthemegamouthsharkskeletalandmuscularsystemsskinhistologyandfunctionalmorphology |