Lepomis macrochirus
Median fin function during the escape response of bluegill sunfish (Lepomis macrochirus) II: Fin ray curvature
... (Lepomis macrochirus), patterns of spanwise and chordwise curvature of the soft dorsal and anal fin surfaces were examined from the same video sequences previously used in analysis of fin-ray movement and ...
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Speed dependent intrinsic caudal fin muscle recruitment during steady swimming in bluegill sunfish, Lepomis macrochirus
... The intrinsic caudal musculature of Lepomis macrochirus, as seen in Fig.·1, is generally similar to that described previously in other euteleost fishes (Lauder, 1982; Winterbottom, 1974). The flexor ...
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Fin ray sensation participates in the generation of normal fin movement in the hovering behavior of the bluegill sunfish (Lepomis macrochirus)
... ( Lepomis macrochirus Rafinesque 1819), afferent nerves in the fin rays and membrane can convey proprioceptive feedback that reflects fin ray position and velocity at frequencies and bend amplitudes ...
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Caudal fin shape modulation and control during acceleration, braking and backing maneuvers in bluegill sunfish, Lepomis macrochirus
... ( Lepomis macrochirus ) through examination of the kinematics of the caudal fin and activity of the intrinsic caudal musculature during a diversity of unsteady locomotor behaviors: kick-and-glide swimming, ...
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Major histocompatibility complex does not affect mating patterns in bluegill sunfish (Lepomis macrochirus)
... In many species, individuals prefer mates that are genetically dissimilar at the major histocompatibility complex (MHC). This is likely because it improves offspring resistance to pathogens. Here I provide the first ...
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Streamwise vortices destabilize swimming bluegill sunfish (Lepomis macrochirus)
... Lacey et al. (2012) suggested that some of the diversity in the results could be organized by considering the intensity, periodicity, orientation and size of vortices in a wake, which they termed the ‘ IPOS ’ (intensity, ...
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Median fin function during the escape response of bluegill sunfish (Lepomis macrochirus) I: Fin ray orientation and movement
... Fig. 1. The bluegill sunfish, Lepomis macrochirus. (A) Illustration of the bluegill. Unpaired median fins: dorsal fins (DF), composed of two developmentally separate fins, the spiny dorsal (spD) and ...
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A test of the effects of androgens on immunity: no relationship between 11-keto testosterone and immune performance in bluegill sunfish (Lepomis macrochirus)
... (Lepomis macrochirus) are common throughout the 900-hectare lake, and this population has been sampled annually as part of a long-term series of experiments focusing on the behavioural ecology of this ...
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Spatial and temporal patterns of water flow generated by suction feeding bluegill sunfish Lepomis macrochirus resolved by Particle Image Velocimetry
... sunfish Lepomis macrochirus by taking measurements with high spatial and temporal resolution using Particle Image Velocimetry (PIV) and a novel method of tracking individual seed particles for the duration ...
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Effects of exogenous androgens on parental care behaviour in male bluegill sunfish (Lepomis macrochirus)
... Mean (± SE) number of aggressive and nurturing behaviours by male bluegill ( Lepomis macrochirus ) in response to experimentally manipulated levels of testosterone .... Mean (± SE) chan[r] ...
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Hydrodynamics of linear acceleration in bluegill sunfish, Lepomis macrochirus
... In their natural habitat, fish rarely swim steadily. Instead they frequently accelerate and decelerate. Relatively little is known about how fish produce extra force for acceleration in routine swimming behavior. In this ...
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Sucking while swimming: evaluating the effects of ram speed on suction generation in bluegill sunfish Lepomis macrochirus using digital particle image velocimetry
... It is well established that suction feeding fish use a variable amount of swimming (ram) during prey capture. However, the fluid mechanical effects of ram on suction feeding are not well established. In this study we ...
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The effects of acute temperature change on swimming performance in bluegill sunfish Lepomis macrochirus
... Subsequently, at the fin beat cycle frequency used during maximal labriform swimming at that temperature, muscle strain and relative timing and duration of activation were systematically[r] ...
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Mechanical and energetic factors underlying gait transitions in bluegill sunfish (Lepomis macrochirus)
... This may also be the case in some other gait-transitioning species for which data are available. In the pumpkinseed sunfish (Lepomis gibbosus) (Brett and Sutherland, 1965) and triggerfish (Rhinecanthus aculeatus) ...
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Median fin function in bluegill sunfish Lepomis macrochirus: streamwise vortex structure during steady swimming
... List of symbols coefficients used to fit circulation in Eqn·4 and 5 intercept in the model in Eqn·4 and 5 geometric effectiveness, defined in Eqn·8 fish length number of Fourier modes in[r] ...
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Multiple social and ecological factors influence coloration in bluegills (Lepomis macrochirus)
... the evolution of female mate choice in this species.. Costs of sexual advertising in the lekking Jackson's widowbird. - Princeton University Press, Princeton, New Jersey. The advantages[r] ...
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Vertical banding evoked by electrical stimulation of the brain in anaesthetized green sunfish, Lepomis cyanellus, and bluegills, Lepomis macrochirus
... This study was undertaken to investigate central neural control of rapid colour change and to locate specific areas in the brain where the vertical banding pattern can be evoked by elect[r] ...
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Mitochondrial and nuclear gene dynamics of introduced populations of Lepomis macrochirus.
... nuclear genes, but the difference should be no larger than about a factor of four if reproduction, migration, or longevity are not sexually biased (Birky, Maruyama and FUER[r] ...
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KINEMATICS OF PECTORAL FIN LOCOMOTION IN THE BLUEGILL SUNFISH LEPOMIS MACROCHIRUS
... velocities of movement for the tip of the fin during abduction and adduction generally increased significantly with increased swimming speed. The ratio of maximal speed of fin retraction to swimming speed declined ...
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Functional Anatomy of Feeding in the Bluegill Sunfish, Lepomis Macrochirus: in Vivo Measurement of Bone Strain
... In simultaneous recording of opercular cavity pressures, bone strain, and electromyographic activity, a change in bone strain was never seen without a corresponding pressure reduction wh[r] ...
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