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	Provedor de dados Neotropical Ichthyology (2) Autor Crampton,William G. R. (2) Wells,Jonathan K. (2) Smyth,Charles (1) Walz,Steven A. (1) Palavra-chave Electric Organ Discharge (2) Gymnotiformes (2) Method (2) Communication (1) Knife fishes (1) Knifefishes (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2007 (1) 2006 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Design and construction of an Electric Fish Finder Neotropical Ichthyology Crampton,William G. R.; Wells,Jonathan K.; Smyth,Charles; Walz,Steven A.. We provide notes on the design and construction of an Electric Fish Finder - a portable differential amplifier for detecting the electrostatic fields of gymnotiform knifefishes. The device can be adapted to locate electric fishes in any kind of aquatic environment. It is rugged, water resistant, and powered by alkaline batteries. This contribution is part of a series of technical papers designed to encourage students of neotropical ichthyology to explore the ecology, systematics, and electric signaling of gymnotiform fishes. Tipo: Info:eu-repo/semantics/article Palavras-chave: Electric Organ Discharge; Gymnotiformes; Knifefishes; Method. Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252007000300022 A portable bio-amplifier for electric fish research: design and construction Neotropical Ichthyology Wells,Jonathan K.; Crampton,William G. R.. The weak electric organ discharges (EODs) of gymnotiform knife fishes can be readily amplified with a wideband amplifier connected to submerged electrodes. The output from such an amplifier can then be monitored with audio speakers or digitized for subsequent analysis. Commercially available devices are expensive and usually require mains electrical power. Here we provide design notes and instructions for the construction and calibration of a cheap, portable, battery-powered, AC-coupled wideband bio-amplifier. This device was designed to allow electric fishes to be located in the field, and also to permit the relatively noise-free acquisition of EOD waveforms from specimens held in temporary captivity. This contribution is intended to encourage students of... Tipo: Info:eu-repo/semantics/article Palavras-chave: Communication; Electric Organ Discharge; Gymnotiformes; Knife fishes; Method. Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252006000200018 Registros recuperados: 2 Primeira ... 1 ... Última

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