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A cinematographic investigation into the fish's bioelectric breathing signal
Gruber, D.; Cairns, J.; Dickson, K.L.; Hendricks, A.C. (1979). A cinematographic investigation into the fish's bioelectric breathing signal. J. Fish Biol. 14(5): 429-436
In: Journal of Fish Biology. Fisheries Society of the British Isles: London,New York,. ISSN 0022-1112; e-ISSN 1095-8649
Peer reviewed article  

Beschikbaar in  Auteurs 

    Equipment > Measuring devices
    Lepomis macrochirus; Pimephales promelas Rafinesque, 1820 [WoRMS]

Auteurs  Top 
  • Gruber, D.
  • Cairns, J.
  • Dickson, K.L.
  • Hendricks, A.C.

    The buccal-ventilatory movements of bluegill sunfish, Lepomis macrochirus and fathead minnows Pimephales promelas and strip chart recordings of these movements were filmed simultaneously. The amplitudes of the ventilatory signals were greatest when a fish was perpendicular to the plane of either electrode, and the polarity of a signal corresponded to the fish's direction to one of the electrodes. The most common breathing waveforms for both species reflected a bimodal pattern. These patterns varied in frequency and shifted toward single modality in response to stress. Portions of the recorded waveforms consistently coincided with the period in which a fish was displaying either full opercular flare or closure. Similar occurrences corresponded with mouth positions. Several commonly occurring variations of the ventilatory signal waveforms are presented, including the response of bluegill sunfish to a strong concentration of chlorinated water.

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