G. Lauder

Publications369
h-index84
Citations20,944
Highly Influential Citations1,056
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The evolution and interrelationships of the actinopterygian fishes
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The hydrodynamics of eel swimming
TLDR
The hydrodynamics of American eels swimming steadily at 1.4 L s-1 are examined and it is inferred that the lack of downstream flow results from a spatial and temporal balance of momentum removal and thrust generated along the body, due to the relatively uniform shape of eels.
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The Kármán gait: novel body kinematics of rainbow trout swimming in a vortex street
TLDR
Interestingly, trout swimming in front of a cylinder display lower tail-beat amplitudes and body wave speeds than trout subjected to any of the other treatments, implying that the bow wake may be the most energetically favorable region for a fish to hold station near a cylinder.
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Evolution of the feeding mechanism in primitive actionopterygian fishes: A functional anatomical analysis of Polypterus, Lepisosteus, and Amia
  • G. Lauder
  • Biology
    Journal of morphology
  • 1 March 1980
The comparative functional anatomy of feeding in Polypterus senegalus, Lepisosteus oculatus, and Amia calva, three primitive actinopterygian fishes, was studied by high‐speed cinematography (200…
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Fish Exploiting Vortices Decrease Muscle Activity
TLDR
Quantitative flow visualization and electromyography is used to show that trout will adopt a novel mode of locomotion to slalom in between experimentally generated vortices by activating only their anterior axial muscles.
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Hydrodynamics of caudal fin locomotion by chub mackerel, Scomber japonicus (Scombridae).
TLDR
The first quantitative flow visualization of the wake of a scombrid fish, chub mackerel Scomber japonicus, swimming steadily in a recirculating flow tank at cruising speeds of 1.2 and 2.2FL s(-1 is presented.
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The Suction Feeding Mechanism in Sunfishes (Lepomis): An Experimental Analysis
TLDR
Data indicate that the buccal and opercular cavities are functionally separated by a gill curtain of high resistance, that inertial effects of water are important in the description of the suction feeding process, that a reverse flow of water may occur during the early phase of mouth opening prior to establishment of a buCCal to opercular flow regime, and current models of respiratory pressure and flow pattern cannot be applied to feeding.
Hydrodynamics of Undulatory Propulsion
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Function of the Caudal Fin During Locomotion in Fishes: Kinematics, Flow Visualization, and Evolutionary Patterns1
TLDR
Two experimental approaches are reviewed which promise to provide new insights into the function and evolution of the caudal fin: three-dimensional kinematic analysis, and quantitative flow measurements in the wake of freely-swimming fishes using digital particle image velocimetry (DPIV).
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A hydrodynamic analysis of fish swimming speed: wake structure and locomotor force in slow and fast labriform swimmers.
TLDR
Two hypotheses relating locomotor stability, maneuverability and the structure of the vortex wake are presented and a potential hydrodynamic trade-off between speed and maneuverability that arises as a geometric consequence of the orientation of vortex rings shed by the pectoral fins is proposed.
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