scholarly journals Intra- and Intersexual swim bladder dimorphisms in the plainfin midshipman fish (Porichthys notatus): Implications of swim bladder proximity to the inner ear for sound pressure detection

2017 ◽  
Vol 278 (11) ◽  
pp. 1458-1468 ◽  
Author(s):  
Robert A. Mohr ◽  
Elizabeth A. Whitchurch ◽  
Ryan D. Anderson ◽  
Paul M. Forlano ◽  
Richard R. Fay ◽  
...  
Keyword(s):  
Inner Ear ◽  
Sound Pressure ◽  
Swim Bladder ◽  
Porichthys Notatus ◽  
Plainfin Midshipman

scholarly journals Swim bladder enhances lagenar sensitivity to sound pressure and higher frequencies in female plainfin midshipman (Porichthys notatus)

2020 ◽  
Vol 223 (14) ◽  
pp. jeb225177
Author(s):  
Brooke J. Vetter ◽  
Joseph A. Sisneros
Keyword(s):  
Sound Pressure ◽  
Type I ◽  
Swim Bladder ◽  
Social Signals ◽  
Intact Control ◽  
Auditory Thresholds ◽  
Porichthys Notatus ◽  
Close Proximity ◽  
Reproductive Females ◽  
Plainfin Midshipman

ABSTRACTThe plainfin midshipman fish (Porichthys notatus) is an established model for investigating acoustic communication because the reproductive success of this species is dependent on the production and reception of social acoustic signals. Previous work showed that female midshipman have swim bladders with rostral horn-like extensions that project close to the saccule and lagena, while nesting (type I) males lack such rostral swim bladder extensions. The relative close proximity of the swim bladder to the lagena should increase auditory sensitivity to sound pressure and higher frequencies. Here, we test the hypothesis that the swim bladder of female midshipman enhances lagenar sensitivity to sound pressure and higher frequencies. Evoked potentials were recorded from auditory hair cell receptors in the lagena in reproductive females with intact (control condition) and removed (treated condition) swim bladders while pure tone stimuli (85–1005 Hz) were presented by an underwater speaker. Females with intact swim bladders had auditory thresholds 3–6 dB lower than females without swim bladders over a range of frequencies from 85 to 405 Hz. At frequencies from 545 to 1005 Hz, only females with intact swim bladders had measurable auditory thresholds (150–153 dB re. 1 µPa). The higher percentage of evoked lagenar potentials recorded in control females at frequencies >505 Hz indicates that the swim bladder extends the bandwidth of detectable frequencies. These findings reveal that the swim bladders in female midshipman can enhance lagenar sensitivity to sound pressure and higher frequencies, which may be important for the detection of behaviorally relevant social signals.

scholarly journals Sexually dimorphic swim bladder extensions enhance the auditory sensitivity of female plainfin midshipman fish, Porichthys notatus

2019 ◽  
Vol 222 (14) ◽  
pp. jeb204552 ◽  
Author(s):  
Orphal Colleye ◽  
Brooke J. Vetter ◽  
Robert A. Mohr ◽  
Lane H. Seeley ◽  
Joseph A. Sisneros
Keyword(s):  
Auditory Sensitivity ◽  
Sexually Dimorphic ◽  
Swim Bladder ◽  
Porichthys Notatus ◽  
Plainfin Midshipman

scholarly journals Catecholaminergic connectivity to the inner ear, central auditory, and vocal motor circuitry in the plainfin midshipman fish porichthys notatus

2014 ◽  
Vol 522 (13) ◽  
pp. Spc1-Spc1 ◽  
Author(s):  
Paul M. Forlano ◽  
Spencer D. Kim ◽  
Zuzanna M. Krzyminska ◽  
Joseph A. Sisneros
Keyword(s):  
Inner Ear ◽  
Porichthys Notatus ◽  
Plainfin Midshipman

scholarly journals Bioacoustic variation of swimbladder disturbance sounds in Neotropical doradoid catfishes (Siluriformes: Doradidae, Auchenipteridae): Potential morphological correlates

2012 ◽  
Vol 58 (1) ◽  
pp. 171-188 ◽  
Author(s):  
Ingrid M. Kaatz ◽  
Donald J. Stewart
Keyword(s):  
Inner Ear ◽  
Morphological Traits ◽  
Dominant Frequency ◽  
Frequency Variation ◽  
Swim Bladder ◽  
Frequency Sound ◽  
Temporal Intervals ◽  
Bladder Diverticula ◽  
Somatic Index ◽  
Elastic Spring

Abstract Swimbladder disturbance sounds of doradoid catfishes (Doradidae and Auchenipteridae) demonstrated striking waveform and spectrographic variation. We surveyed sounds of 25 doradoid species in 20 genera comparing these to sounds of four vocal outgroup catfish families. Sounds were either continuous waveforms (lacking interpulses) or pulsed (groups of pulses repeated at fixed temporal intervals). This is the first evidence for swimbladder calls with fixed interpulse patterns in catfishes. Vocal mechanism components that were similar between doradids and auchenipterids included: swimbladder shape, swimbladder dimensions and sonic muscle-somatic index. Morphological traits that showed variation among taxa and were evaluated for potential correlates of call diversity are: 1) diverticula (marginal outpocketings of the swimbladder with no connection to inner ear) and 2) elastic spring apparatus Müllerian rami (ESA-Mr). Within the doradid subfamilies and within the Auchenipteridae most species differed significantly in dominant frequency with frequency ranges overlapping to some extent for most. Doradid swim-bladder diverticula did not explain dominant frequency variation within the doradoid superfamily. Some doradids with conical ESA-Mr had the highest dominant frequency sounds. Auchenipterids included both relatively lower and higher dominant frequency sound producers but lacked diverticula and had discoidal ESA-Mr. Comparing a phylogeny of doradoid genera with out-group taxa, we infer that complex diverticula and conical ESA-Mr are derived characters within the Doradidae. Species representing outgroup families produced either continuous lower dominant frequency sounds (aspredinids, mochokids and pseu-dopimelodids) or pulsed higher dominant frequency sounds (pimelodids).

scholarly journals Bald Eagles, Haliaeetus leucocephalus, Feeding on Spawning Plainfin Midshipman, Porichthys notatus, at Crescent Beach, British Columbia

2003 ◽  
Vol 117 (4) ◽  
pp. 601 ◽  
Author(s):  
Kyle Hamish Elliott ◽  
Christina L. Struik ◽  
John E. Elliott
Keyword(s):  
British Columbia ◽  
Nous Avons ◽  
Food Source ◽  
Haliaeetus Leucocephalus ◽  
Potential Importance ◽  
Bald Eagles ◽  
Porichthys Notatus ◽  
Tide Height ◽  
Consumption Rates ◽  
Plainfin Midshipman

We observed Bald Eagles feeding on Plainfin Midshipman near Crescent Beach, British Columbia, in May and June 2001 and 2002. We quantified consumption rates and eagle numbers during this period, illustrating the potential importance of this food source to breeding eagles. Tide height was the only significant factor influencing consumption rates, likely because this variable reflected the availability of midshipman prey.Nous avons observé les Pygargues à tête blanche alimenter sur les Crapauds à nageoire unie près de Crescent Beach, Colombie-Britannique, en maie et juin 2001 et 2002. Nous avons mesuré les cadences de consommation et les nombres de pygargues pendant cette période, illustrant l’importance potentielle de cette source de nourriture pour les aigles. La taille de marée était le seul facteur significatif influençant les cadences de consommation et les nombres de pygargues pendant la période d’étude, probablement parce que cette variable a reflété la disponibilité des crapauds.

Diet and cannibalism in plainfin midshipman Porichthys notatus

2015 ◽  
Vol 86 (4) ◽  
pp. 1396-1415 ◽  
Author(s):  
K. M. Cogliati ◽  
C. Danukarjanto ◽  
A. C. Pereira ◽  
M. J. Lau ◽  
A. Hassan ◽  
...  
Keyword(s):  
Porichthys Notatus ◽  
Plainfin Midshipman

Sound source localization by the plainfin midshipman fish (Porichthys notatus).

2008 ◽  
Vol 124 (4) ◽  
pp. 2549-2549
Author(s):  
David Zeddies ◽  
Richard Fay ◽  
Peter Alderks ◽  
Kiel Shaub ◽  
Joseph Sisneros
Keyword(s):  
Source Localization ◽  
Sound Source ◽  
Sound Source Localization ◽  
Porichthys Notatus ◽  
Plainfin Midshipman

Steroid Hormones and Paternal Care in the Plainfin Midshipman Fish (Porichthys notatus)

1999 ◽  
Vol 35 (1) ◽  
pp. 81-89 ◽  
Author(s):  
Rosemary Knapp ◽  
John C. Wingfield ◽  
Andrew H. Bass
Keyword(s):  
Steroid Hormones ◽  
Paternal Care ◽  
Porichthys Notatus ◽  
Plainfin Midshipman
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