ArticleBiology open2019
Three-dimensional movements of the pectoral fin during yaw turns in the Pacific spiny dogfish,
Article in Biology open, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 17 citations in OpenAlex.
- Dorsoventral limb patterning in paired appendages emerged via regulatory repurposing of an ancestral posterior fin module.Molecular biology and evolution · 2026Article
- Effects of Ceratotrichia Diameter and Packing Density on Chimaera Pectoral Fin Kinematics.Integrative organismal biology (Oxford, England) · 2026Article
- Insights Into the Ecomorphology of the Blue Shark (Ecology and evolution · 2025Article
- Speed-dependent locomotor patterns during steady swimming in a demersal shark.Journal of fish biology · 2025Article
- Emerging biological insights enabled by high-resolution 3D motion data: promises, perspectives and pitfalls.The Journal of experimental biology · 2023Article
- Escape response kinematics in two species of tropical shark: short escape latencies and high turning performance.The Journal of experimental biology · 2022Article
- Scaling of maneuvering performance in baleen whales: larger whales outperform expectations.The Journal of experimental biology · 2022Article
- Bifunctional Role of the Sternohyoideus Muscle During Suction Feeding in Striped Surfperch,Integrative organismal biology (Oxford, England) · 2020Article
- Body and Pectoral Fin Kinematics During Routine Yaw Turning in Bonnethead Sharks (Integrative organismal biology (Oxford, England) · 2019Article
Corrections and comments
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Authors and funding
5 authors at 4 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Fish pectoral fins move in complex ways, acting as control surfaces to affect force balance during swimming and maneuvering. Though objectively less dynamic than their actinopterygian relatives, shark pectoral fins undergo complex conformational changes and movements during maneuvering. Asynchronous pectoral fin movement is documented during yaw turning in at least two shark species but the three-dimensional (3D) rotation of the fin about the body axes is unknown. We quantify the 3D actuation of the pectoral fin base relative to the body axes. We hypothesized that Pacific spiny dogfish rotate pectoral fins with three degrees of freedom relative to the body during volitional turning. The pectoral fin on the inside of the turn is consistently protracted, supinated and depressed. Additionally, turning angular velocity increased with increasing fin rotation. Estimated drag on the fin increased and the shark decelerated during turning. Based on these findings, we propose that Pacific spiny dogfish uses drag-based turning during volitional swimming. Post-mortem muscle stimulation revealed depression, protraction and supination of the pectoral fin through stimulation of the ventral and cranial pterygoideus muscles. These data confirm functional hypotheses about pectoral fin musculature and suggest that Pacific spiny dogfish actively rotate pectoral fins to facilitate drag-based turning.This article has an associated First Person interview with the first author of the paper.
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