NAUEN, J.C.*; LAUDER, G.V.: Small-scale flow around the finlets and caudal peduncle of free-swimming chub mackerel (Scomber japonicus) The trajectory and speed of flow in the vicinity of the finlets (small fins on the dorsal and ventral body margin anterior to the caudal fin) and caudal peduncle of chub mackerel (Scomber japonicus) swimming steadily in […]
Archives: Abstracts
Locomotor Tracking of the Spine-tailed Devil Ray, Mobula japanica
FREUND, E.V.*; DEWAR, H.; CROLL, D.A.: Locomotor Tracking of the Spine-tailed Devil Ray, Mobula japanica Three-dimensional movements and foraging ecology of a small manta ray species, the spine-tailed devil ray, Mobula japanica, were monitored using acoustic tracking (n = 2) and archival tagging techniques (n = 4) in the southern Sea of Cortez. The rays […]
Locomotion in needlefish anguilliform swimming with fins
LIAO, J.: Locomotion in needlefish: anguilliform swimming with fins Anguilliform locomotion involves the undulation of an elongate body axis and is characteristic of a diverse array of vertebrates, ranging from fishes to salamanders and reptiles. The Atlantic needlefish, Strongylura marina, is an elongate fish that displays anguilliform locomotion and also possesses a typical percomorph fin […]
Kinematics of Salmon Leaping Up Waterfalls
Lauritzen, D.V.*; Hertel, F.; Gordon, M.S.: Kinematics of Salmon Leaping Up Waterfalls Fish ladders have been used for hundreds of years to help migratory fishes move upstream past human-made obstacles such as dams. The designs of these ladders appear to have given little consideration to the behaviors and leaping abilities of the fishes they are […]
Function of the teleost dorsal fin experimental analysis of wake forces in sunfish
DRUCKER, E.G.*; LAUDER, G.V.: Function of the teleost dorsal fin: experimental analysis of wake forces in sunfish A major structural transformation characterizing the evolution of teleost fishes is the elaboration of the dorsal fin into anterior spiny and posterior soft-rayed portions. As yet, however, there are no hydrodynamic data on the functions served by these […]
Material properties shape dynamical responses of hydrozoan jellyfish
GOLDMAN, E.B.*; DANIEL, T. L.: Material properties shape dynamical responses of hydrozoan jellyfish Radially symmetrical and composed of acellular mesoglea, two cell layers, and a primitive nervous system, jellyfish are an elegantly simple launching point to investigate how material properties of the musculoskeletal system shape the dynamics of locomotion. Mesoglea, composed of mucopolysaccharides, collagen, and […]
Force generation by undulatory swimming at intermediate Reynolds numbers in tunicate larvae (Botrylloides, sp)
MCHENRY, M.J.: Force generation by undulatory swimming at intermediate Reynolds numbers in tunicate larvae (Botrylloides, sp.) Despite recent advances in computational modeling and flow visualization, the hydrodynamics of swimming animals remains a subject of debate. This is certainly the case for undulatory swimmers operating at intermediate Reynolds numbers (Re), where both inertial and viscous forces […]
Flow patterns around boxfishes Role of body keels in dynamic stability
BARTOL, I.K.*; GORDON, M.S.: Flow patterns around boxfishes: Role of body keels in dynamic stability The tropical marine boxfishes and their relatives (family Ostraciidae) are some of the most highly specialized living bony fishes. The forward 2/3 to 3/4 of their bodies are covered by rigid bony tests, which restrict body movements to their fins […]
Fast Start Behaviors of Fish Lacking Mauthner Neurons
Hale, M.E.: Fast Start Behaviors of Fish Lacking Mauthner Neurons The paired Mauthner neurons (M-cells) are used by fishes to initiate the C-start type of startle response. During C-starts, a fish turns rapidly away from an offending stimulus with a “C” shaped body bend. Mauthner neurons may also function in S-starts, in which the initial […]
Escape Response Performance in the Larval Razorback Sucker, Xyrauchen texanus
Wesp, H.M.*; Gibb, A.C.: Escape Response Performance in the Larval Razorback Sucker, Xyrauchen texanus The razorback sucker, Xyrauchen texanus, is an endangered fish native to the Colorado River system. Previous research suggests that declines in wild populations are due to a lack of larval recruitment. In this study, we tested the hypothesis that poor escape […]