Results 121 to 130 of about 709 (151)
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Copeia, 2018
Skeletal deformities among fishes are well documented in the aquaculture industry and husbandry studies. However, these deformities are noticeably less prevalent among wild caught animals, likely due to their deleterious effects on the fitness of affected individuals particularly at earlier life-history stages. Here we use micro-CT imaging to describe,
Kory M. Evans +2 more
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Skeletal deformities among fishes are well documented in the aquaculture industry and husbandry studies. However, these deformities are noticeably less prevalent among wild caught animals, likely due to their deleterious effects on the fitness of affected individuals particularly at earlier life-history stages. Here we use micro-CT imaging to describe,
Kory M. Evans +2 more
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Electric organ discharges of the gymnotiform fishes: III. Brachyhypopomus
Journal of Comparative Physiology A: Sensory, Neural, and Behavioral Physiology, 1999We measured and mapped the electric fields produced by three species of neotropical electric fish of the genus Brachyhypopomus (Gymnotiformes, Rham phichthyoidea, Hypopomidae), formerly Hypopomus. These species produce biphasic pulsed discharges from myogenic electric organs. Spatio-temporal false-color maps of the electric organ discharges measured on
P K, Stoddard, B, Rasnow, C, Assad
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Individual Repeatability of Locomotor Kinematics and Swimming Performance in a Gymnotiform Swimmer
Physiological and Biochemical Zoology, 2021AbstractGymnotiform swimming is a specialized form of swimming wherein thrust is produced by the ribbonlike motion of an elongate anal fin, while the body is held relatively stiff. This form of swimming has been extensively examined in relation to the biomechanics of thrust production, the kinematics of the anal fin, and neuromuscular control, whereas ...
C E, Oufiero +3 more
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Reproductive strategies and developmental aspects in mormyrid and gymnotiform fishes
Journal of Physiology-Paris, 2002Comparative data on the reproduction in captivity and ontogenetic development of six of mormyrid species and seven gymnotiform species are reported. Mormyrid fishes: egg diameter ranged from 1.8 (Petroephalus soudanensis) to 3.0 mm (Hippopotamyrus pictus.
Frank, Kirschbaum, Christian, Schugardt
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Modular Design of Gymnotiform Undulating Fin
2019In the field of underwater robot, gymnotiform undulating fin inspired a number of research group over the world. A variety of design has been consequently created and developed with the design of multi-actuators. However, this type of design has the remarkable downsides.
Van Dong Nguyen +4 more
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Efferent projections of the posterior lateral line lobe in gymnotiform fish
Journal of Comparative Neurology, 1982AbstractThe posterior lateral line lobe (PLLL) of gymnotoid fish has efferent projections to two midbrain regions: the nucleus praeeminentialis dorsalis (n.P.d.) and the torus semicircularis dorsalis (T.Sd.). Both ipsilateral and contralateral connections are present; the n.P.d. receives nearly equal input from both sides while the T.Sd.
L, Maler +3 more
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Sexual Dimorphism in Apteronotus Bonapartii (Gymnotiformes: Apteronotidae)
Copeia, 2006Here we document sexual dimorphism in both external measurements of the head and discrete features of the skull in Apteronotus bonapartii. To quantify morphological variation in A. bonapartii, ten external morphometric measurements were taken from the head and body of 58 individuals.
Hilton, Eric J., Fernandes, Cristina Cox
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Reviews in Fish Biology and Fisheries, 2011
Gymnotiformes are an important component of the Neotropical ichthyofauna and they are known for their ability to generate and detect electrical discharges. Phylogenetic relationships of Gymnotiformes are still not well understood. However, the monophyly of the superfamily Rhamphichthyoidea is well accepted, despite the position of tribe Steatogenini ...
Adauto Lima Cardoso +2 more
exaly +3 more sources
Gymnotiformes are an important component of the Neotropical ichthyofauna and they are known for their ability to generate and detect electrical discharges. Phylogenetic relationships of Gymnotiformes are still not well understood. However, the monophyly of the superfamily Rhamphichthyoidea is well accepted, despite the position of tribe Steatogenini ...
Adauto Lima Cardoso +2 more
exaly +3 more sources
Chromosome Variability in Gymnotiformes (Teleostei: Ostariophysi)
2007Lurdes Foresti de Almeida-Toledo +3 more
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Connections of the olfactory bulb in the gymnotiform fish, Apteronotus leptorhynchus
Journal of Comparative Neurology, 1993AbstractThis work examines the connectivity of the olfactory bulb in the gymnotiform fish Apteronotus leptorhynchus. Wheat germ agglutinin conjugated horseradish peroxidase was iontophoresed in different areas and depths of the bulb in order to define its efferent and afferent connections.
E, Sas, L, Maler, M, Weld
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