Axial morphology and 3D neurocranial kinematics in suction-feeding fishes
Many suction-feeding fish use neurocranial elevation to expand the buccal cavity for suction feeding, a motion necessarily accompanied by the dorsal flexion of joints in the axial skeleton. How much dorsal flexion the axial skeleton accommodates and where that dorsal flexion occurs may vary with axi...
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| Format: | Article |
| Language: | English |
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The Company of Biologists
2018-09-01
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| Series: | Biology Open |
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| Online Access: | http://bio.biologists.org/content/7/9/bio036335 |
| _version_ | 1818657717580988416 |
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| author | Yordano E. Jimenez Ariel L. Camp Jonathan D. Grindall Elizabeth L. Brainerd |
| author_facet | Yordano E. Jimenez Ariel L. Camp Jonathan D. Grindall Elizabeth L. Brainerd |
| author_sort | Yordano E. Jimenez |
| collection | DOAJ |
| description | Many suction-feeding fish use neurocranial elevation to expand the buccal cavity for suction feeding, a motion necessarily accompanied by the dorsal flexion of joints in the axial skeleton. How much dorsal flexion the axial skeleton accommodates and where that dorsal flexion occurs may vary with axial skeletal morphology, body shape and the kinematics of neurocranial elevation. We measured three-dimensional neurocranial kinematics in three species with distinct body forms: laterally compressed Embiotoca lateralis, fusiform Micropterus salmoides, and dorsoventrally compressed Leptocottus armatus. The area just caudal to the neurocranium occupied by bone was 42±1.5%, 36±1.8% and 22±5.5% (mean±s.e.m.; N=3, 6, 4) in the three species, respectively, and the epaxial depth also decreased from E. lateralis to L. armatus. Maximum neurocranial elevation for each species was 11, 24 and 37°, respectively, consistent with a hypothesis that aspects of axial morphology and body shape may constrain neurocranial elevation. Mean axis of rotation position for neurocranial elevation in E. lateralis, M. salmoides and L. armatus was near the first, third and fifth intervertebral joints, respectively, leading to the hypothesis of a similar relationship with the number of intervertebral joints that flex. Although future work must test these hypotheses, our results suggest the relationships merit further inquiry. |
| first_indexed | 2024-12-17T03:45:55Z |
| format | Article |
| id | doaj.art-e4c868b9bafe43929b4c2806edf69d67 |
| institution | Directory Open Access Journal |
| issn | 2046-6390 |
| language | English |
| last_indexed | 2024-12-17T03:45:55Z |
| publishDate | 2018-09-01 |
| publisher | The Company of Biologists |
| record_format | Article |
| series | Biology Open |
| spelling | doaj.art-e4c868b9bafe43929b4c2806edf69d672022-12-21T22:04:53ZengThe Company of BiologistsBiology Open2046-63902018-09-017910.1242/bio.036335036335Axial morphology and 3D neurocranial kinematics in suction-feeding fishesYordano E. Jimenez0Ariel L. Camp1Jonathan D. Grindall2Elizabeth L. Brainerd3 Department of Ecology and Evolutionary Biology, Brown University, 80 Waterman Street, Providence, RI 02912, USA Department of Ecology and Evolutionary Biology, Brown University, 80 Waterman Street, Providence, RI 02912, USA Friday Harbor Laboratories, University of Washington, 620 University Road, Friday Harbor, WA 98250, USA Department of Ecology and Evolutionary Biology, Brown University, 80 Waterman Street, Providence, RI 02912, USA Many suction-feeding fish use neurocranial elevation to expand the buccal cavity for suction feeding, a motion necessarily accompanied by the dorsal flexion of joints in the axial skeleton. How much dorsal flexion the axial skeleton accommodates and where that dorsal flexion occurs may vary with axial skeletal morphology, body shape and the kinematics of neurocranial elevation. We measured three-dimensional neurocranial kinematics in three species with distinct body forms: laterally compressed Embiotoca lateralis, fusiform Micropterus salmoides, and dorsoventrally compressed Leptocottus armatus. The area just caudal to the neurocranium occupied by bone was 42±1.5%, 36±1.8% and 22±5.5% (mean±s.e.m.; N=3, 6, 4) in the three species, respectively, and the epaxial depth also decreased from E. lateralis to L. armatus. Maximum neurocranial elevation for each species was 11, 24 and 37°, respectively, consistent with a hypothesis that aspects of axial morphology and body shape may constrain neurocranial elevation. Mean axis of rotation position for neurocranial elevation in E. lateralis, M. salmoides and L. armatus was near the first, third and fifth intervertebral joints, respectively, leading to the hypothesis of a similar relationship with the number of intervertebral joints that flex. Although future work must test these hypotheses, our results suggest the relationships merit further inquiry.http://bio.biologists.org/content/7/9/bio036335Axial skeletonBody shapePterygiophoreSupraneuralVROMMXROMM |
| spellingShingle | Yordano E. Jimenez Ariel L. Camp Jonathan D. Grindall Elizabeth L. Brainerd Axial morphology and 3D neurocranial kinematics in suction-feeding fishes Biology Open Axial skeleton Body shape Pterygiophore Supraneural VROMM XROMM |
| title | Axial morphology and 3D neurocranial kinematics in suction-feeding fishes |
| title_full | Axial morphology and 3D neurocranial kinematics in suction-feeding fishes |
| title_fullStr | Axial morphology and 3D neurocranial kinematics in suction-feeding fishes |
| title_full_unstemmed | Axial morphology and 3D neurocranial kinematics in suction-feeding fishes |
| title_short | Axial morphology and 3D neurocranial kinematics in suction-feeding fishes |
| title_sort | axial morphology and 3d neurocranial kinematics in suction feeding fishes |
| topic | Axial skeleton Body shape Pterygiophore Supraneural VROMM XROMM |
| url | http://bio.biologists.org/content/7/9/bio036335 |
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