Pectoral Fin of the Megamouth Shark: Skeletal and Muscular Systems, Skin Histology, and Functional Morphology
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{"title"=>"Pectoral fin of the megamouth shark: Skeletal and muscular systems, skin histology, and functional morphology", "type"=>"journal", "authors"=>[{"first_name"=>"Taketeru", "last_name"=>"Tomita", "scopus_author_id"=>"47562221700"}, {"first_name"=>"Sho", "last_name"=>"Tanaka", "scopus_author_id"=>"15731964800"}, {"first_name"=>"Keiichi", "last_name"=>"Sato", "scopus_author_id"=>"56355232700"}, {"first_name"=>"Kazuhiro", "last_name"=>"Nakaya", "scopus_author_id"=>"7103182856"}], "year"=>2014, "source"=>"PLoS ONE", "identifiers"=>{"sgr"=>"84907027186", "doi"=>"10.1371/journal.pone.0086205", "pui"=>"372852714", "pmid"=>"24465959", "scopus"=>"2-s2.0-84907027186", "issn"=>"19326203", "isbn"=>"1932-6203 (Electronic)\\r1932-6203 (Linking)"}, "id"=>"2c9a4205-0b91-3c93-bf1d-e2e9bcf0d0ea", "abstract"=>"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.", "link"=>"http://www.mendeley.com/research/pectoral-fin-megamouth-shark-skeletal-muscular-systems-skin-histology-functional-morphology", "reader_count"=>27, "reader_count_by_academic_status"=>{"Researcher"=>6, "Student > Doctoral Student"=>1, "Student > Ph. D. Student"=>11, "Student > Master"=>4, "Student > Bachelor"=>4, "Lecturer"=>1}, "reader_count_by_user_role"=>{"Researcher"=>6, "Student > Doctoral Student"=>1, "Student > Ph. D. Student"=>11, "Student > Master"=>4, "Student > Bachelor"=>4, "Lecturer"=>1}, "reader_count_by_subject_area"=>{"Unspecified"=>2, "Engineering"=>1, "Environmental Science"=>2, "Biochemistry, Genetics and Molecular Biology"=>2, "Agricultural and Biological Sciences"=>16, "Medicine and Dentistry"=>1, "Earth and Planetary Sciences"=>2, "Sports and Recreations"=>1}, "reader_count_by_subdiscipline"=>{"Engineering"=>{"Engineering"=>1}, "Medicine and Dentistry"=>{"Medicine and Dentistry"=>1}, "Earth and Planetary Sciences"=>{"Earth and Planetary Sciences"=>2}, "Sports and Recreations"=>{"Sports and Recreations"=>1}, "Agricultural and Biological Sciences"=>{"Agricultural and Biological Sciences"=>16}, "Biochemistry, Genetics and Molecular Biology"=>{"Biochemistry, Genetics and Molecular Biology"=>2}, "Unspecified"=>{"Unspecified"=>2}, "Environmental Science"=>{"Environmental Science"=>2}}, "reader_count_by_country"=>{"United Arab Emirates"=>1}, "group_count"=>1}

Scopus | Further Information

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Figshare

  • {"files"=>["https://ndownloader.figshare.com/files/1354431"], "description"=>"<p>(<b>A</b>) Pectoral girdle: lateral view of the right pectoral girdle (left), and close-up view of the articulation surface for the pectoral fin (right). (<b>B</b>) Close-up view of the articulation between the pectoral girdle and the pectoral fin. The pectoral fin base twists approximately 90°. co, coracoid; ms, mesopterygium; mt, metapterygium; pt, protopterygium.</p>", "links"=>[], "tags"=>["Anatomy and physiology", "Musculoskeletal system", "cartilage", "Musculoskeletal anatomy", "skin", "Skin anatomy", "Comparative anatomy", "histology", "Marine biology", "Fisheries science", "Zoology", "Ichthyology", "pectoral", "fin", "girdle", "megamouth"], "article_id"=>906765, "categories"=>["Biological Sciences"], "users"=>["Taketeru Tomita", "Sho Tanaka", "Keiichi Sato", "Kazuhiro Nakaya"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0086205.g004", "stats"=>{"downloads"=>1, "page_views"=>7, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Articulation_between_the_pectoral_fin_base_and_the_pectoral_girdle_in_the_megamouth_shark_/906765", "title"=>"Articulation between the pectoral fin base and the pectoral girdle in the megamouth shark.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2014-01-21 04:33:59"}
  • {"files"=>["https://ndownloader.figshare.com/files/1354430"], "description"=>"<p>Naked-line networks around the pectoral fin base of the megamouth shark, <i>Megachasma pelagios</i> (OCA-P 20111217).</p>", "links"=>[], "tags"=>["Anatomy and physiology", "Musculoskeletal system", "cartilage", "Musculoskeletal anatomy", "skin", "Skin anatomy", "Comparative anatomy", "histology", "Marine biology", "Fisheries science", "Zoology", "Ichthyology", "networks", "pectoral", "fin", "megamouth"], "article_id"=>906764, "categories"=>["Biological Sciences"], "users"=>["Taketeru Tomita", "Sho Tanaka", "Keiichi Sato", "Kazuhiro Nakaya"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0086205.g003", "stats"=>{"downloads"=>2, "page_views"=>18, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Naked_line_networks_around_the_pectoral_fin_base_of_the_megamouth_shark_Megachasma_pelagios_OCA_P_20111217_/906764", "title"=>"Naked-line networks around the pectoral fin base of the megamouth shark, <i>Megachasma pelagios</i> (OCA-P 20111217).", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2014-01-21 04:33:59"}
  • {"files"=>["https://ndownloader.figshare.com/files/1354435"], "description"=>"<p>(<b>A</b>) Semi-longitudinal section at site p1 of <i>I. oxyrhinchus</i> with HE staining. (<b>B</b>) Cross-section at site p3 of <i>I. oxyrhinchus</i> with EVG staining. (<b>C</b>) Enlarged view of a semi-longitudinal section of the exterior dermis at site p1 of <i>I. oxyrhinchus</i> with EVG staining. (<b>D</b>) Cross-section from site p1 of <i>L. ditropis</i> with HE staining. (<b>E</b>) Cross-section at site p2 of <i>L. ditropis</i> with EVG staining. (<b>F</b>) Cross-section at site p3 of <i>L. ditropis</i> with HE staining. Scale bar in C = 0.1 mm, and for all others = 0.2 mm.</p>", "links"=>[], "tags"=>["Anatomy and physiology", "Musculoskeletal system", "cartilage", "Musculoskeletal anatomy", "skin", "Skin anatomy", "Comparative anatomy", "histology", "Marine biology", "Fisheries science", "Zoology", "Ichthyology", "sections", "dorsal", "pectoral", "fin"], "article_id"=>906769, "categories"=>["Biological Sciences"], "users"=>["Taketeru Tomita", "Sho Tanaka", "Keiichi Sato", "Kazuhiro Nakaya"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0086205.g008", "stats"=>{"downloads"=>2, "page_views"=>24, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Transverse_sections_of_skin_from_the_dorsal_side_of_the_pectoral_fin_of_Isurus_oxyrhinchus_and_Lamna_ditropis_/906769", "title"=>"Transverse sections of skin from the dorsal side of the pectoral fin of <i>Isurus oxyrhinchus</i> and <i>Lamna ditropis</i>.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2014-01-21 04:33:59"}
  • {"files"=>["https://ndownloader.figshare.com/files/1354433"], "description"=>"<p>(<b>A</b>) Lateral view (above) and medial view (below) images. (<b>B</b>) Schematic of the pectoral fin muscle systems. co, coracoid; dpe 1, anterior component of the depressor pectoralis; dpe 2, posterior component of the depressor pectoralis; lpe, levator pectoralis; ms, mesopterygium; mt, metapterygium; pt, protopterygium.</p>", "links"=>[], "tags"=>["Anatomy and physiology", "Musculoskeletal system", "cartilage", "Musculoskeletal anatomy", "skin", "Skin anatomy", "Comparative anatomy", "histology", "Marine biology", "Fisheries science", "Zoology", "Ichthyology", "muscles", "megamouth"], "article_id"=>906767, "categories"=>["Biological Sciences"], "users"=>["Taketeru Tomita", "Sho Tanaka", "Keiichi Sato", "Kazuhiro Nakaya"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0086205.g006", "stats"=>{"downloads"=>1, "page_views"=>7, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Pectoral_muscles_of_the_megamouth_shark_/906767", "title"=>"Pectoral muscles of the megamouth shark.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2014-01-21 04:33:59"}
  • {"files"=>["https://ndownloader.figshare.com/files/1354434"], "description"=>"<p>Locations of skin samples (p1, p2, and p3) are shown in <a href=\"http://www.plosone.org/article/info:doi/10.1371/journal.pone.0086205#pone-0086205-g002\" target=\"_blank\">Figure 2A</a>. (<b>A</b>) Cross-section at site p1 with HE staining. (<b>B</b>) Longitudinal section at site p1, with EVG staining. (<b>C</b>) Enlarged view of a cross-section of the exterior dermis at site p1, with EVG staining. (<b>D</b>) Cross-section at site p2 with HE staining. (<b>E</b>) Cross-section at site p3 with EVG staining. (<b>F</b>) Enlarged view of a longitudinal section of collagen fiber bundles from site p1 with EVG staining. Scale bars in A, B, D, and E = 0.2 mm, and in C and F = 0.05 mm; ce, ceratotrichia; cfb, collagen fiber bundles; dd, dermal denticles; ed, epidermis; EF, elastic fibers; mp, melanophores; pl, papillary layer; rle, exterior reticular layer; rli, interior reticular layer; rlm, middle reticular layer; rc, radial cartilage; *, artificial spaces produced by the cutting procedure.</p>", "links"=>[], "tags"=>["Anatomy and physiology", "Musculoskeletal system", "cartilage", "Musculoskeletal anatomy", "skin", "Skin anatomy", "Comparative anatomy", "histology", "Marine biology", "Fisheries science", "Zoology", "Ichthyology", "sections", "dorsal", "pectoral", "fin", "megamouth"], "article_id"=>906768, "categories"=>["Biological Sciences"], "users"=>["Taketeru Tomita", "Sho Tanaka", "Keiichi Sato", "Kazuhiro Nakaya"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0086205.g007", "stats"=>{"downloads"=>3, "page_views"=>24, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Transverse_sections_of_skin_from_the_dorsal_side_of_the_pectoral_fin_of_the_megamouth_shark_/906768", "title"=>"Transverse sections of skin from the dorsal side of the pectoral fin of the megamouth shark.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2014-01-21 04:33:59"}
  • {"files"=>["https://ndownloader.figshare.com/files/1354432"], "description"=>"<p>In the megamouth shark, the girdle and fin articulate to form a hinge joint in which the rotation axis of the joint is nearly vertical to the plane of the fin.</p>", "links"=>[], "tags"=>["Anatomy and physiology", "Musculoskeletal system", "cartilage", "Musculoskeletal anatomy", "skin", "Skin anatomy", "Comparative anatomy", "histology", "Marine biology", "Fisheries science", "Zoology", "Ichthyology", "diagrams", "articulation", "pectoral", "girdle", "fin", "sharks", "megamouth"], "article_id"=>906766, "categories"=>["Biological Sciences"], "users"=>["Taketeru Tomita", "Sho Tanaka", "Keiichi Sato", "Kazuhiro Nakaya"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0086205.g005", "stats"=>{"downloads"=>15, "page_views"=>283, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Schematic_diagrams_of_the_articulation_between_the_pectoral_girdle_and_the_pectoral_fin_in_most_sharks_above_and_in_the_megamouth_shark_below_/906766", "title"=>"Schematic diagrams of the articulation between the pectoral girdle and the pectoral fin in most sharks (above) and in the megamouth shark (below).", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2014-01-21 04:33:59"}
  • {"files"=>["https://ndownloader.figshare.com/files/1354429"], "description"=>"<p>(<b>A</b>) External morphology of the ventral (left) and dorsal (right) surfaces of the pectoral fin. White boxes represent the sites used for sampling of skin tissues for histological studies. (<b>B</b>) Skeletal structure of the ventral side of the pectoral fin (left) and the dorsal side of the basal cartilages (right). ms, mesopterygium; mt, metapterygium; pt, protopterygium; rd, radial.</p>", "links"=>[], "tags"=>["Anatomy and physiology", "Musculoskeletal system", "cartilage", "Musculoskeletal anatomy", "skin", "Skin anatomy", "Comparative anatomy", "histology", "Marine biology", "Fisheries science", "Zoology", "Ichthyology", "fin", "megamouth"], "article_id"=>906763, "categories"=>["Biological Sciences"], "users"=>["Taketeru Tomita", "Sho Tanaka", "Keiichi Sato", "Kazuhiro Nakaya"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0086205.g002", "stats"=>{"downloads"=>1, "page_views"=>2, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Pectoral_fin_of_the_megamouth_shark_Megachasma_pelagios_OCA_P_20110301_/906763", "title"=>"Pectoral fin of the megamouth shark, <i>Megachasma pelagios</i> (OCA-P 20110301).", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2014-01-21 04:33:59"}
  • {"files"=>["https://ndownloader.figshare.com/files/1354428"], "description"=>"<p>The radial number and segment number of this pectoral fin are 13 and 4, respectively (see the text for details). ms, mesopterygium; mt, metapterygium; pt, protopterygium; rd, radial.</p>", "links"=>[], "tags"=>["Anatomy and physiology", "Musculoskeletal system", "cartilage", "Musculoskeletal anatomy", "skin", "Skin anatomy", "Comparative anatomy", "histology", "Marine biology", "Fisheries science", "Zoology", "Ichthyology", "endoskeletal", "pectoral"], "article_id"=>906762, "categories"=>["Biological Sciences"], "users"=>["Taketeru Tomita", "Sho Tanaka", "Keiichi Sato", "Kazuhiro Nakaya"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0086205.g001", "stats"=>{"downloads"=>0, "page_views"=>276, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Schematic_of_the_endoskeletal_structure_of_the_shark_pectoral_fin_/906762", "title"=>"Schematic of the endoskeletal structure of the shark pectoral fin.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2014-01-21 04:33:59"}
  • {"files"=>["https://ndownloader.figshare.com/files/1354437"], "description"=>"<p>Measurement methods follow those of Compagno (2001).</p>", "links"=>[], "tags"=>["Anatomy and physiology", "Musculoskeletal system", "cartilage", "Musculoskeletal anatomy", "skin", "Skin anatomy", "Comparative anatomy", "histology", "Marine biology", "Fisheries science", "Zoology", "Ichthyology", "fin", "megamouth"], "article_id"=>906771, "categories"=>["Biological Sciences"], "users"=>["Taketeru Tomita", "Sho Tanaka", "Keiichi Sato", "Kazuhiro Nakaya"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0086205.t001", "stats"=>{"downloads"=>1, "page_views"=>12, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Pectoral_fin_measurements_of_the_megamouth_shark_OCA_P_20110301_TL_8202_8202_3_7_m_/906771", "title"=>"Pectoral fin measurements of the megamouth shark (OCA-P 20110301; TL = 3.7 m).", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2014-01-21 04:33:59"}
  • {"files"=>["https://ndownloader.figshare.com/files/1354436"], "description"=>"a<p>HUMZ133182,</p>b<p>HUMZ136626,</p>c<p>HUMZ117738,</p>d<p>OCA-P 20110301.</p>", "links"=>[], "tags"=>["Anatomy and physiology", "Musculoskeletal system", "cartilage", "Musculoskeletal anatomy", "skin", "Skin anatomy", "Comparative anatomy", "histology", "Marine biology", "Fisheries science", "Zoology", "Ichthyology", "radial", "lamniform"], "article_id"=>906770, "categories"=>["Biological Sciences"], "users"=>["Taketeru Tomita", "Sho Tanaka", "Keiichi Sato", "Kazuhiro Nakaya"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0086205.t002", "stats"=>{"downloads"=>1, "page_views"=>18, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Radial_number_and_radial_segment_number_of_lamniform_sharks_/906770", "title"=>"Radial number and radial segment number of lamniform sharks.", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2014-01-21 04:33:59"}

PMC Usage Stats | Further Information

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  • {"unique-ip"=>"6", "full-text"=>"6", "pdf"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2018", "month"=>"9"}
  • {"unique-ip"=>"11", "full-text"=>"12", "pdf"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"1", "year"=>"2018", "month"=>"12"}
  • {"unique-ip"=>"13", "full-text"=>"12", "pdf"=>"2", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"1", "year"=>"2019", "month"=>"2"}
  • {"unique-ip"=>"17", "full-text"=>"15", "pdf"=>"2", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"2", "supp-data"=>"0", "cited-by"=>"1", "year"=>"2019", "month"=>"3"}
  • {"unique-ip"=>"21", "full-text"=>"31", "pdf"=>"6", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"1", "year"=>"2019", "month"=>"4"}
  • {"unique-ip"=>"14", "full-text"=>"11", "pdf"=>"4", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"1", "supp-data"=>"0", "cited-by"=>"1", "year"=>"2019", "month"=>"5"}

Relative Metric

{"start_date"=>"2014-01-01T00:00:00Z", "end_date"=>"2014-12-31T00:00:00Z", "subject_areas"=>[{"subject_area"=>"/Biology and life sciences/Biomechanics", "average_usage"=>[303, 468]}, {"subject_area"=>"/Medicine and health sciences/Physiology", "average_usage"=>[278]}]}
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