Afferent connections of the valvula cerebelli in two teleosts, the common goldfish and the green sunfish [PDF]
The afferent connections of the valvula cerebelli were examined in one cypriniform teleost (Carassius auratus) and one perciform teleost (Lepomis cyanellus) with the use of horseradish peroxidase as a retrograde tracer.
Bell+43 more
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A new and improved electric fish finder with resources for printed circuit board fabrication [PDF]
We describe the circuit design, construction, and operation of a field-portable electric fish finder (an AC-coupled wide-band differential bio-amplifier with loudspeaker output).
Michael A. Haag+3 more
doaj +1 more source
A direct cerebello-telencephalic projection in an electrosensory mormyrid fish [PDF]
After injections of the posterior part of the lateral zone of the area dorsalis telencephali (Dlp) with either horseradish peroxidase or the newly available carbocyanine dye DiI, efferent cells were labeled in the valvula cerebelli of the mormyrid fish ...
Ebbesson+22 more
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Species recognition by the sequence of discharge intervals in weakly electric fishes of the genus Campylomormyrus (Mormyridae, Teleostei) [PDF]
In two Campylomormyrus species, tamandua and rhynchophorus from Central Africa, the electric organ discharge (EOD) activity was studied during the nocturnal activity phase in the laboratory. Both species have a pulse-type EOD of less than 200 μs duration
Kramer, Bernd, Kuhn, Birgit
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Patterns of the electric organ discharge during courtship and spawning in the mormyrid fish, Pollimyrus isidori [PDF]
Pollimyrus isidori's electric organ discharge (EOD) is of the pulse type. Patterns of EOD intervals were investigated prior to, during and following spawning behaviors as related with overt behaviors, and with the sound production by the nestbuilding ...
Bratton, Bradford O., Kramer, Bernd
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Electric imaging through evolution, a modeling study of commonalities and differences. [PDF]
Modeling the electric field and images in electric fish contributes to a better understanding of the pre-receptor conditioning of electric images. Although the boundary element method has been very successful for calculating images and fields, complex ...
Federico Pedraja+3 more
doaj +1 more source
Self-organizing & stochastic behaviors during the regeneration of hair stem cells [PDF]
Stem cells cycle through active and quiescent states. Large populations of stem cells in an organ may cycle randomly or in a coordinated manner. Although stem cell cycling within single hair follicles has been studied, less is known about regenerative ...
Andl, T+9 more
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A large part of the literature on sensory perception and behavior in dolphins is devoted to its well-developed vocal and echolocation abilities. In this review, we aim to augment current knowledge by examining the literature on dolphins’ entire Merkwelt (
Dorothee eKremers+9 more
doaj +1 more source
Review of Magnetic Shark Deterrents: Hypothetical Mechanisms and Evidence for Selectivity
Several papers published since 2006 describe effects of magnetic fields on elasmobranchs and assess their utility in reducing negative interactions between sharks and humans, including bycatch reduction.
Courtney, Joshua+2 more
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Early life sensory ability—ventilatory responses of thornback ray embryos (Raja clavata) to predator-type electric fields [PDF]
Predator avoidance is fundamental for survival and it can be particularly challenging for prey animals if physical movement away from a predatory threat is restricted. Many sharks and rays begin life within an egg capsule that is attached to the sea bed.
Ballard+37 more
core +1 more source