...Taylor R. Stanley; Karen S. Kim Guisbert; Sabrina M. Perez; Morgan Oneka; Isabela Kernin; Nicole R. Higgins; Alexandra Lobo; Munevver M. Subasi; David J. Carroll; Ralph G. Turingan; Eric Guisbert ABSTRACT The bluegill sunfish Lepomis macrochirus and the closely related redear sunfish Lepomis...

...: Development and calibration of a vortex generator to investigate the stiffness of fish fins during natural swimming. Fish swimming Vortex ring Perturbation Stiffness Mechanical properties Bluegill sunfish Many studies have concluded that fish modulate the stiffness of their fins during...

... increase the hydrodynamic force. In this work, the above hypotheses on the role of fins during C-starts are studied using experimentally guided numerical simulations of four bluegill sunfish, whose fins are removed or erected. The amount of force created by the body and fins at each time instant...

...Iman Borazjani; Fotis Sotiropoulos; Eric D. Tytell; George V. Lauder SUMMARY In this work we study the hydrodynamics of a bluegill sunfish performing a C-start maneuver in unprecedented detail using 3-D numerical simulations guided by previous laboratory experiments with live fish. The 3-D fish...

... to predators. In this paper, we present an experimental hydrodynamic analysis of the C-start escape response in bluegill sunfish ( Lepomis macrochirus ). We used time-resolved digital particle image velocimetry at 1000 frames s –1 (fps)to image flow patterns during the escape response. We analyzed flow...

...-dimensional volumetric flow measurements are not currently feasible, but measurements in multiple transverse planes along the body can illuminate many of the important flow features. In this study, I analyze flow in the transverse plane at a range of positions around bluegill sunfish Lepomis macrochirus...

... -values of <0.05 and all statistical tests were completed using SAS (version 9.1 TS Level 1M2 XP_Pro Platform). Measurements noted in the text are expressed as mean ± s . e . m . Table 1. ANOVA for maximum fin and body excursion during steady swimming and maneuvers of bluegill sunfish...

... hydrodynamic study of dorsal fin function in teleost fishes, we analyzed the wake created by the soft dorsal fin of bluegill sunfish ( Lepomis macrochirus ) during both steady swimming and unsteady turning maneuvers. Digital particle image velocimetry was used to visualize wake structures and to calculate...

... locomotor dynamics. In this paper, we measure the fluid forces exerted by the left and right pectoral fins of bluegill sunfish ( Lepomis macrochirus ) during turning using digital particle image velocimetry (DPIV). DPIV allowed quantification of water velocity fields, and hence momentum, in the wake...

... to determine how hydrodynamic force varies in two species that differ markedly in maximum swimming speed. Black surfperch ( Embiotoca jacksoni ) and bluegill sunfish ( Lepomis macrochirus ) swim at low speeds using their pectoral fins exclusively, and at higher speeds switch to combined pectoral and caudal fin...

... (DPIV), it is possible to quantify the effect of fish fins on water movement and hence to estimate momentum transfer from the animal to the fluid. We used DPIV to visualize water flow in the wake of the pectoral fins of bluegill sunfish ( Lepomis macrochirus ) swimming at speeds of 0.5–1.5 L s −1...

... to examine the movements of different portions of pectoral fins, we quantified the kinematics of pectoral fin locomotion in the bluegill sunfish Lepomis macrochirus using several points on the distal fin edge and examined the effects of swimming speed on fin movements. We simultaneously videotaped...