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Titolo:
ELECTROPHYSIOLOGY OF THE CEPHALIC LATERAL-LINE OF THE SURFACE-FEEDINGFISH APLOCHEILUS-LINEATUS
Autore:
MOHR C; BLECKMANN H;
Indirizzi:
UNIV BONN,INST ZOOL,POPPELSDORFER SCHLOSS D-53115 BONN GERMANY UNIV BONN,INST ZOOL D-53115 BONN GERMANY
Titolo Testata:
Comparative biochemistry and physiology. Part A, Molecular & integrative physiology
fascicolo: 3, volume: 119, anno: 1998,
pagine: 807 - 815
SICI:
1095-6433(1998)119:3<807:EOTCLO>2.0.ZU;2-D
Fonte:
ISI
Lingua:
ENG
Soggetto:
AXOLOTL AMBYSTOMA-MEXICANUM; XENOPUS-LAEVIS; CLAWED FROG; RESPONSES; UNITS; SYSTEM; WAVES; TROUT;
Keywords:
SURFACE-FEEDING FISH; LATERAL LINE; SURFACE WAVES; PREY DETECTION; NEUROMAST; PRIMARY AFFERENTS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
38
Recensione:
Indirizzi per estratti:
Citazione:
C. Mohr e H. Bleckmann, "ELECTROPHYSIOLOGY OF THE CEPHALIC LATERAL-LINE OF THE SURFACE-FEEDINGFISH APLOCHEILUS-LINEATUS", Comparative biochemistry and physiology. Part A, Molecular & integrative physiology, 119(3), 1998, pp. 807-815

Abstract

We investigated the responses of primary afferents innervating the cephalic lateral line of the surface-feeding fish Aplocheilus lineatus to sinusoidal surface wave stimuli. All afferents showed ongoing activity. The degree of spike synchronization with the excitatory phase of awave cycle and/or the firing rate encoded stimulus amplitude. Modulation of the fiber's discharge rate usually reflected the waves' frequency and thus may be used by the fish to determine stimulus frequency. Different primary afferents may show differences in vibration threshold, frequency sensitivity, phase coupling and dynamic amplitude range. Fibers innervating different head neuromasts were, however, not consistently different in their average response properties. Therefore, we conclude that the arrangement of the cephalic lateral line of A. lineatus separates the relevant stimulus parameters into distinct channels toonly a limited extent, leaving most of the stimulus analysis for central processing, and that surface feeding does not involve obvious specializations of the peripheral lateral line, compared with midwater fish and surface-feeding amphibians. (C) 1998 Elsevier Science Inc.

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Documento generato il 26/09/20 alle ore 05:39:32