Functional morphology of prey capture in the sturgeon, Scaphirhynchus albus.
Identifieur interne : 000543 ( PubMed/Checkpoint ); précédent : 000542; suivant : 000544Functional morphology of prey capture in the sturgeon, Scaphirhynchus albus.
Auteurs : Andrew M. Carroll [États-Unis] ; Peter C. WainwrightSource :
- Journal of morphology [ 0362-2525 ] ; 2003.
English descriptors
- KwdEn :
- MESH :
- anatomy & histology : Fishes, Hyoid Bone, Jaw.
- physiology : Feeding Behavior, Fishes, Hyoid Bone, Jaw.
- Animals, Biomechanical Phenomena, Phylogeny, Predatory Behavior, Video Recording.
Abstract
Acipenseriformes (sturgeon and paddlefish) are basal actinopterygians with a highly derived cranial morphology that is characterized by an anatomical independence of the jaws from the neurocranium. We examined the morphological and kinematic basis of prey capture in the Acipenseriform fish Scaphirhynchus albus, the pallid sturgeon. Feeding pallid sturgeon were filmed in lateral and ventral views and movement of cranial elements was measured from video sequences. Sturgeon feed by creating an anterior to posterior wave of cranial expansion resulting in prey movement through the mouth. The kinematics of S. albus resemble those of other aquatic vertebrates: maximum hyoid depression follows maximum gape by an average of 15 ms and maximum opercular abduction follows maximum hyoid depression by an average of 57 ms. Neurocranial rotation was not a part of prey capture kinematics in S. albus, but was observed in another sturgeon species, Acipenser medirostris. Acipenseriformes have a novel jaw protrusion mechanism, which converts rostral rotation of the hyomandibula into ventral protrusion of the jaw joint. The relationship between jaw protrusion and jaw opening in sturgeon typically resembles that of elasmobranchs, with peak upper jaw protrusion occurring after peak gape.
DOI: 10.1002/jmor.10095
PubMed: 12655610
Affiliations:
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Wainwright</name></author></analytic><series><title level="j">Journal of morphology</title><idno type="ISSN">0362-2525</idno><imprint><date when="2003" type="published">2003</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Animals</term><term>Biomechanical Phenomena</term><term>Feeding Behavior (physiology)</term><term>Fishes (anatomy & histology)</term><term>Fishes (physiology)</term><term>Hyoid Bone (anatomy & histology)</term><term>Hyoid Bone (physiology)</term><term>Jaw (anatomy & histology)</term><term>Jaw (physiology)</term><term>Phylogeny</term><term>Predatory Behavior</term><term>Video Recording</term></keywords><keywords scheme="MESH" qualifier="anatomy & histology" xml:lang="en"><term>Fishes</term><term>Hyoid Bone</term><term>Jaw</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Feeding Behavior</term><term>Fishes</term><term>Hyoid Bone</term><term>Jaw</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Animals</term><term>Biomechanical Phenomena</term><term>Phylogeny</term><term>Predatory Behavior</term><term>Video Recording</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Acipenseriformes (sturgeon and paddlefish) are basal actinopterygians with a highly derived cranial morphology that is characterized by an anatomical independence of the jaws from the neurocranium. We examined the morphological and kinematic basis of prey capture in the Acipenseriform fish Scaphirhynchus albus, the pallid sturgeon. Feeding pallid sturgeon were filmed in lateral and ventral views and movement of cranial elements was measured from video sequences. Sturgeon feed by creating an anterior to posterior wave of cranial expansion resulting in prey movement through the mouth. The kinematics of S. albus resemble those of other aquatic vertebrates: maximum hyoid depression follows maximum gape by an average of 15 ms and maximum opercular abduction follows maximum hyoid depression by an average of 57 ms. Neurocranial rotation was not a part of prey capture kinematics in S. albus, but was observed in another sturgeon species, Acipenser medirostris. Acipenseriformes have a novel jaw protrusion mechanism, which converts rostral rotation of the hyomandibula into ventral protrusion of the jaw joint. The relationship between jaw protrusion and jaw opening in sturgeon typically resembles that of elasmobranchs, with peak upper jaw protrusion occurring after peak gape.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">12655610</PMID><DateCreated><Year>2003</Year><Month>03</Month><Day>25</Day></DateCreated><DateCompleted><Year>2003</Year><Month>09</Month><Day>30</Day></DateCompleted><DateRevised><Year>2013</Year><Month>11</Month><Day>21</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">0362-2525</ISSN><JournalIssue CitedMedium="Print"><Volume>256</Volume><Issue>3</Issue><PubDate><Year>2003</Year><Month>Jun</Month></PubDate></JournalIssue><Title>Journal of morphology</Title><ISOAbbreviation>J. Morphol.</ISOAbbreviation></Journal><ArticleTitle>Functional morphology of prey capture in the sturgeon, Scaphirhynchus albus.</ArticleTitle><Pagination><MedlinePgn>270-84</MedlinePgn></Pagination><Abstract><AbstractText>Acipenseriformes (sturgeon and paddlefish) are basal actinopterygians with a highly derived cranial morphology that is characterized by an anatomical independence of the jaws from the neurocranium. We examined the morphological and kinematic basis of prey capture in the Acipenseriform fish Scaphirhynchus albus, the pallid sturgeon. Feeding pallid sturgeon were filmed in lateral and ventral views and movement of cranial elements was measured from video sequences. Sturgeon feed by creating an anterior to posterior wave of cranial expansion resulting in prey movement through the mouth. The kinematics of S. albus resemble those of other aquatic vertebrates: maximum hyoid depression follows maximum gape by an average of 15 ms and maximum opercular abduction follows maximum hyoid depression by an average of 57 ms. Neurocranial rotation was not a part of prey capture kinematics in S. albus, but was observed in another sturgeon species, Acipenser medirostris. Acipenseriformes have a novel jaw protrusion mechanism, which converts rostral rotation of the hyomandibula into ventral protrusion of the jaw joint. 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Wainwright</name></noCountry><country name="États-Unis"><noRegion><name sortKey="Carroll, Andrew M" sort="Carroll, Andrew M" uniqKey="Carroll A" first="Andrew M" last="Carroll">Andrew M. Carroll</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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