1
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Ogurek SDL, Halliday WD, Woods MB, Brown N, Balshine S, Juanes F. Boat noise impedes vocalizations of wild plainfin midshipman fish. MARINE POLLUTION BULLETIN 2024; 203:116412. [PMID: 38703628 DOI: 10.1016/j.marpolbul.2024.116412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 04/19/2024] [Accepted: 04/19/2024] [Indexed: 05/06/2024]
Abstract
Marine noise is recognised as a growing threat that can induce maladaptive behavioural changes in many aquatic animals, including fishes. The plainfin midshipman is a soniferous fish with a prolonged breeding period, during which males produce tonal hums that attract females, and grunts and growls during agonistic interactions. In this study, we used acoustic recordings to assess the effects of boat noise on the presence, peak frequencies, and durations of plainfin midshipman calls in the wild. We found that all three call types were less likely to occur, and the peak frequencies of hums and grunts increased in the presence of boat noise. We also show that loud and quiet boat noise affected plainfin midshipman vocalizations similarly. As anthropogenic noise is likely to increase in the ocean, it will be important to understand how such noise can affect communication systems, and consequently population health and resiliency.
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Affiliation(s)
| | - William D Halliday
- School of Earth and Ocean Sciences, University of Victoria, Victoria, BC, Canada; Wildlife Conservation Society Canada, Whitehorse, YT, Canada
| | | | - Nick Brown
- Department of Biology, University of Victoria, Victoria, BC, Canada; Department of Psychology, Neuroscience, & Behaviour, McMaster University, Hamilton, ON, Canada
| | - Sigal Balshine
- Department of Psychology, Neuroscience, & Behaviour, McMaster University, Hamilton, ON, Canada
| | - Francis Juanes
- Department of Biology, University of Victoria, Victoria, BC, Canada
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2
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Rogers LS, Lozier NR, Sapozhnikova YP, Diamond KM, Davis JL, Sisneros JA. Functional plasticity of the swim bladder as an acoustic organ for communication in a vocal fish. Proc Biol Sci 2023; 290:20231839. [PMID: 38087920 PMCID: PMC10716664 DOI: 10.1098/rspb.2023.1839] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Accepted: 11/15/2023] [Indexed: 12/18/2023] Open
Abstract
Teleost fishes have evolved a number of sound-producing mechanisms, including vibrations of the swim bladder. In addition to sound production, the swim bladder also aids in sound reception. While the production and reception of sound by the swim bladder has been described separately in fishes, the extent to which it operates for both in a single species is unknown. Here, using morphological, electrophysiological and modelling approaches, we show that the swim bladder of male plainfin midshipman fish (Porichthys notatus) exhibits reproductive state-dependent changes in morphology and function for sound production and reception. Non-reproductive males possess rostral 'horn-like' swim bladder extensions that enhance low-frequency (less than 800 Hz) sound pressure sensitivity by decreasing the distance between the swim bladder and inner ear, thus enabling pressure-induced swim bladder vibrations to be transduced to the inner ear. By contrast, reproductive males display enlarged swim bladder sonic muscles that enable the production of advertisement calls but also alter swim bladder morphology and increase the swim bladder to inner ear distance, effectively reducing sound pressure sensitivity. Taken together, we show that the swim bladder exhibits a seasonal functional plasticity that allows it to effectively mediate both the production and reception of sound in a vocal teleost fish.
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Affiliation(s)
| | | | - Yulia P. Sapozhnikova
- Department of Psychology, University of Washington, Seattle, WA, USA
- Laboratory of Ichthyology, Limnological Institute Siberian Branch of the Russian Academy of Sciences, Irkutsk, Russia
| | - Kelly M. Diamond
- Center for Developmental Biology and Regenerative Medicine, Seattle Children's Research Institute, Seattle, WA, USA
| | - Julian Ly Davis
- Department of Engineering, University of Southern Indiana, Evansville, IN, USA
- Virginia Merrill Bloedel Hearing Research Center, University of Washington, Seattle, WA, USA
| | - Joseph A. Sisneros
- Department of Psychology, University of Washington, Seattle, WA, USA
- Virginia Merrill Bloedel Hearing Research Center, University of Washington, Seattle, WA, USA
- Department of Biology, University of Washington, Seattle, WA, USA
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3
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Han SM, Land BR, Bass AH, Rice AN. Sound production biomechanics in three-spined toadfish and potential functional consequences of swim bladder morphology in the Batrachoididaea). THE JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA 2023; 154:3466-3478. [PMID: 38019096 DOI: 10.1121/10.0022386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 10/30/2023] [Indexed: 11/30/2023]
Abstract
The relationship between sound complexity and the underlying morphology and physiology of the vocal organ anatomy is a fundamental component in the evolution of acoustic communication, particularly for fishes. Among vertebrates, the mammalian larynx and avian syrinx are the best-studied vocal organs, and their ability to produce complex vocalizations has been modeled. The range and complexity of the sounds in mammalian lineages have been attributed, in part, to the bilateral nature of the vocal anatomy. Similarly, we hypothesize that the bipartite swim bladder of some species of toadfish (family Batrachoididae) is responsible for complex nonlinear characters of the multiple call types that they can produce, supported by nerve transection experiments. Here, we develop a low-dimensional coupled-oscillator model of the mechanics underlying sound production by the two halves of the swim bladder of the three-spined toadfish, Batrachomoeus trispinosus. Our model was able to replicate the nonlinear structure of both courtship and agonistic sounds. The results provide essential support for the hypothesis that fishes and tetrapods have converged in an evolutionary innovation for complex acoustic signaling, namely, a relatively simple bipartite mechanism dependent on sonic muscles contracting around a gas filled structure.
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Affiliation(s)
- Sang Min Han
- School of Electrical and Computer Engineering, Cornell University, Ithaca, New York 14853, USA
- Department of Neurobiology and Behavior, Cornell University, Ithaca, New York 14853, USA
| | - Bruce R Land
- School of Electrical and Computer Engineering, Cornell University, Ithaca, New York 14853, USA
| | - Andrew H Bass
- Department of Neurobiology and Behavior, Cornell University, Ithaca, New York 14853, USA
| | - Aaron N Rice
- K. Lisa Yang Center for Conservation Bioacoustics, Cornell Lab of Ornithology, Cornell University, Ithaca, New York 14850, USA
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4
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Vieira LS, Vaz DFB, Netto-Ferreira AL. Ontogeny of the swim bladder of the Plainfin Midshipman, Porichthys notatus (Percomorphacea: Batrachoidiformes). ZOOLOGY 2023; 159:126102. [PMID: 37364349 DOI: 10.1016/j.zool.2023.126102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 06/09/2023] [Accepted: 06/14/2023] [Indexed: 06/28/2023]
Abstract
The batracoidid Plainfin Midshipmen Porichthys notatus Girard has been extensively studied due to the sound production abilities and specializations of its swim bladder. The present study describes three-dimensional variations of the morphology of the swim bladder and sonic muscles of P. notatus during its post-hatch larval development, with the use of three-dimensional computed tomography. This study also includes descriptions of the relative position of the swim bladder to other visceral organs. The swim bladder, digestive tract, and liver were already present in the smallest examined specimens (5.9 mm; newly hatched larvae) along with the yolk sac. In the smallest specimens, the digestive tract is straight, but from 7.1 mm TL, the digestive tract forms the first intestinal loops, and at 25.5 mm TL, a second intestinal loop. In smallest specimens, the swim bladder is oval, but at 7.1 mm TL, the anterior margin starts invaginating, forming a pair of anterior lobes. The first appearance of the intrinsic sonic muscles in swim bladder occurs at 13.1 mm TL. Additionally, we provide comparisons between the shape of the swim bladder of P. notatus and other species. The shape of the swim bladder of P. notatus and other members of Porichthyinae have an ovoid posterior region with two anterior lobes and differs from the cordiform or semiconected/bilobed the swim bladders observed in the other Batrachoididae.
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Affiliation(s)
- Lorena S Vieira
- Laboratório de Ictiologia, Departamento de Zoologia, Universidade Federal do Rio Grande do Sul., Av. Bento Gonçalves 9500, Porto Alegre, RS, Brazil.
| | - Diego F B Vaz
- Museum of Comparative Zoology, Harvard University, 26 Oxford Street, Cambridge, MA 02138, United States; Guam Ecosystems Collaboratorium Biorepository, Guam EPSCoR, University of Guam. 303 University Drive, UOG Station, Mangilao, Guam 96923, United States
| | - Andre L Netto-Ferreira
- Laboratório de Ictiologia, Departamento de Zoologia, Universidade Federal do Rio Grande do Sul., Av. Bento Gonçalves 9500, Porto Alegre, RS, Brazil
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5
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Popper AN, Hawkins AD, Sisneros JA. Fish hearing "specialization" - A re-valuation. Hear Res 2021; 425:108393. [PMID: 34823877 DOI: 10.1016/j.heares.2021.108393] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 10/15/2021] [Accepted: 11/03/2021] [Indexed: 11/17/2022]
Abstract
Investigators working with fish bioacoustics used to refer to fishes that have a narrow hearing bandwidth and poor sensitivity as "hearing generalists" (or "non-specialists"), while fishes that could detect a wider hearing bandwidth and had greater sensitivity were referred to as specialists. However, as more was learned about fish hearing mechanism and capacities, these terms became hard to apply since it was clear there were gradations in hearing capabilities. Popper and Fay, in a paper in Hearing Research in 2011, proposed that these terms be dropped because of the gradation. While this was widely accepted by investigators, it is now apparent that the lack of relatively concise terminology for fish hearing capabilities makes it hard to discuss fish hearing. Thus, in this paper we resurrect the terms specialist and non-specialist but use them with modifiers to express the specific structure of function that is considered a specialization. Moreover, this resurrection recognizes that hearing specializations in fishes may not only be related to increased bandwidth and/or sensitivity, but to other, perhaps more important, aspects of hearing such as sound source localization, discrimination between sounds, and detection of sounds in the presence of masking signals.
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Affiliation(s)
- Arthur N Popper
- Department of Biology, University of Maryland, College Park, MD USA; Environmental BioAcoustics, LLC, Silver Spring, MD USA.
| | - Anthony D Hawkins
- Environmental BioAcoustics, LLC, Silver Spring, MD USA; Loughine Ltd, Aberdeen, UK
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6
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Lozier NR, Sisneros JA. Ontogeny of Inner Ear Saccular Development in the Plainfin Midshipman (Porichthys notatus). BRAIN, BEHAVIOR AND EVOLUTION 2021; 95:330-340. [PMID: 34161950 PMCID: PMC10494869 DOI: 10.1159/000516477] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Accepted: 04/11/2021] [Indexed: 11/19/2022]
Abstract
The auditory system of the plainfin midshipman fish (Porichthys notatus) is an important sensory system used to detect and encode biologically relevant acoustic stimuli important for survival and reproduction including social acoustic signals used for intraspecific communication. Previous work showed that hair cell (HC) density in the midshipman saccule increased seasonally with reproductive state and was concurrent with enhanced auditory saccular sensitivity in both females and type I males. Although reproductive state-dependent changes in HC density have been well characterized in the adult midshipman saccule, less is known about how the saccule changes during ontogeny. Here, we examined the ontogenetic development of the saccule in four relative sizes of midshipman (larvae, small juveniles, large juveniles, and nonreproductive adults) to determine whether the density, total number, and orientation patterns of saccular HCs change during ontogeny. In addition, we also examined whether the total number of HCs in the saccule differ from that of the utricle and lagena in nonreproductive adults. We found that HC density varied across developmental stage. The ontogenetic reduction in HC density was concurrent with an ontogenetic increase in macula area. The orientation pattern of saccular HCs was similar to the standard pattern previously described in other teleost fishes, and this pattern of HC orientation was retained during ontogeny. Lastly, the estimated number of saccular HCs increased with developmental stage from the smallest larvae (2,336 HCs) to the largest nonreproductive adult (145,717 HCs), and in nonreproductive adults estimated HC numbers were highest in the saccule (mean ± SD = 28,479 ± 4,809 HCs), intermediate in the utricle (mean ± SD = 11,008 ± 1,619 HCs) and lowest in the lagena (mean ± SD = 4,560 ± 769 HCs).
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Affiliation(s)
- Nicholas R. Lozier
- Department of Psychology, University of Washington, Seattle, WA 98195-1525, USA
| | - Joseph A. Sisneros
- Department of Psychology, University of Washington, Seattle, WA 98195-1525, USA
- Department of Biology, University of Washington, Seattle, WA 98195-1800, USA
- Virginia Merrill Bloedel Hearing Research Center, University of Washington, WA 98195-7923, USA
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7
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Rogers LS, Sisneros JA. Auditory evoked potentials of utricular hair cells in the plainfin midshipman, Porichthys notatus. J Exp Biol 2020; 223:jeb226464. [PMID: 32680899 DOI: 10.1242/jeb.226464] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Accepted: 07/10/2020] [Indexed: 11/20/2022]
Abstract
The plainfin midshipman, Porichthys notatus, is a soniferous marine teleost fish that generates acoustic signals for intraspecific social communication. Nocturnally active males and females rely on their auditory sense to detect and locate vocally active conspecifics during social behaviors. Previous work showed that the midshipman inner ear saccule and lagena are highly adapted to detect and encode socially relevant acoustic stimuli, but the auditory sensitivity and function of the midshipman utricle remain largely unknown. Here, we characterized the auditory evoked potentials from hair cells in the utricle of non-reproductive type I males and tested the hypothesis that the midshipman utricle is sensitive to behaviorally relevant acoustic stimuli. Hair cell potentials were recorded from the rostral, medial and caudal regions of the utricle in response to pure tone stimuli presented by an underwater speaker. We show that the utricle is highly sensitive to particle motion stimuli produced by an underwater speaker positioned in the horizontal plane. Utricular potentials were recorded across a broad range of frequencies with lowest particle acceleration (dB re. 1 m s-2) thresholds occurring at 105 Hz (lowest frequency tested; mean threshold -32 dB re. 1 m s-2) and highest thresholds at 605-1005 Hz (mean threshold range -5 to -4 dB re. 1 m s-2). The high gain and broadband frequency sensitivity of the utricle suggest that it likely serves a primary auditory function and is well suited to detect conspecific vocalizations including broadband agonistic signals and the multiharmonic advertisement calls produced by reproductive type I males.
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Affiliation(s)
- Loranzie S Rogers
- Department of Psychology, University of Washington, Seattle, WA 98195, USA
| | - Joseph A Sisneros
- Department of Psychology, University of Washington, Seattle, WA 98195, USA
- Department of Biology, University of Washington, Seattle, WA 98195, USA
- Virginia Merrill Bloedel Hearing Research Center, University of Washington, Seattle, WA 98195, USA
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8
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Vetter BJ, Sisneros JA. Swim bladder enhances lagenar sensitivity to sound pressure and higher frequencies in female plainfin midshipman ( Porichthys notatus). J Exp Biol 2020; 223:jeb225177. [PMID: 32587068 PMCID: PMC7406320 DOI: 10.1242/jeb.225177] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Accepted: 06/16/2020] [Indexed: 11/20/2022]
Abstract
The 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.
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Affiliation(s)
- Brooke J Vetter
- Department of Psychology, University of Washington, Seattle, WA 98195-1525, USA
| | - Joseph A Sisneros
- Department of Psychology, University of Washington, Seattle, WA 98195-1525, USA
- Department of Biology, University of Washington, Seattle, WA 98195-1800, USA
- Virginia Merrill Bloedel Hearing Research Center, University of Washington, Seattle, WA 98195-7923, USA
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9
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Brown AD, Zeng R, Sisneros JA. Auditory evoked potentials of the plainfin midshipman fish ( Porichthys notatus): implications for directional hearing. J Exp Biol 2019; 222:jeb198655. [PMID: 31292164 PMCID: PMC6703703 DOI: 10.1242/jeb.198655] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Accepted: 07/04/2019] [Indexed: 10/26/2022]
Abstract
The plainfin midshipman (Porichthys notatus) is an acoustically communicative teleost fish. Here, we evaluated auditory evoked potentials (AEPs) in reproductive female midshipman exposed to tones at or near dominant frequencies of the male midshipman advertisement call. An initial series of experiments characterized AEPs at behaviorally relevant suprathreshold sound levels (130-140 dB SPL re. 1 µPa). AEPs decreased in magnitude with increasing stimulus frequency and featured a stereotyped component at twice the stimulus frequency. Recording electrode position was varied systematically and found to affect AEP magnitude and phase characteristics. Later experiments employed stimuli of a single frequency to evaluate contributions of the saccule to the AEP, with particular attention to the effects of sound source azimuth on AEP amplitude. Unilateral excision of saccular otoliths (sagittae) decreased AEP amplitude; unexpectedly, decreases differed for right versus left otolith excision. A final set of experiments manipulated the sound pressure-responsive swim bladder. Swim bladder excision further reduced the magnitude of AEP responses, effectively eliminating responses at the standard test intensity (130 dB SPL) in some animals. Higher-intensity stimulation yielded response minima at forward azimuths ipsilateral to the excised sagitta, but average cross-azimuth modulation generally remained slight. Collectively, the data underscore that electrode position is an essential variable to control in fish AEP studies and suggest that in female midshipman: (1) the saccule contributes to the AEP, but its directionality as indexed by the AEP is limited, (2) a left-right auditory asymmetry may exist and (3) the swim bladder provides gain in auditory sensitivity that may be important for advertisement call detection and phonotaxis.
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Affiliation(s)
- Andrew D Brown
- Department of Speech and Hearing Sciences, University of Washington, Seattle, WA 98105, USA
- Virginia Merrill Bloedel Hearing Research Center, University of Washington, Seattle, WA 98195, USA
| | - Ruiyu Zeng
- Department of Psychology, University of Washington, Seattle, WA 98195, USA
| | - Joseph A Sisneros
- Virginia Merrill Bloedel Hearing Research Center, University of Washington, Seattle, WA 98195, USA
- Department of Psychology, University of Washington, Seattle, WA 98195, USA
- Department of Biology, University of Washington, Seattle, WA 98195, USA
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10
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Colleye O, Vetter BJ, Mohr RA, Seeley LH, Sisneros JA. Sexually dimorphic swim bladder extensions enhance the auditory sensitivity of female plainfin midshipman fish, Porichthys notatus. ACTA ACUST UNITED AC 2019; 222:jeb.204552. [PMID: 31221741 DOI: 10.1242/jeb.204552] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Accepted: 06/14/2019] [Indexed: 11/20/2022]
Abstract
The plainfin midshipman fish, Porichthys notatus, is a seasonally breeding, nocturnal marine teleost fish that produces acoustic signals for intraspecific social communication. Females rely on audition to detect and locate 'singing' males that produce multiharmonic advertisement calls in the shallow-water, intertidal breeding environments. Previous work showed that females possess sexually dimorphic, horn-like rostral swim bladder extensions that extend toward the primary auditory end organs, the saccule and lagena. Here, we tested the hypothesis that the rostral swim bladder extensions in females increase auditory sensitivity to sound pressure and higher frequencies, which potentially could enhance mate detection and localization in shallow-water habitats. We recorded the auditory evoked potentials that originated from hair cell receptors in the saccule of control females with intact swim bladders and compared them with those from treated females (swim bladders removed) and type I males (intact swim bladders lacking rostral extensions). Saccular potentials were recorded from hair cell populations in vivo while behaviorally relevant pure-tone stimuli (75-1005 Hz) were presented by an underwater speaker. The results indicate that control females were approximately 5-11 dB re. 1 µPa more sensitive to sound pressure than treated females and type I males at the frequencies tested. A higher percentage of the evoked saccular potentials were recorded from control females at frequencies >305 Hz than from treated females and type I males. This enhanced sensitivity in females to sound pressure and higher frequencies may facilitate the acquisition of auditory information needed for conspecific localization and mate choice decisions during the breeding season.
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Affiliation(s)
- Orphal Colleye
- Department of Psychology, University of Washington, Seattle, WA 98195-1525, USA.,Laboratoire de Morphologie Fonctionnelle et Evolutive, Université de Liège, Institut de Chimie, Bât. B6c, Quartier Agora, 4000 Liège, Belgium
| | - Brooke J Vetter
- Department of Psychology, University of Washington, Seattle, WA 98195-1525, USA
| | - Robert A Mohr
- Department of Psychology, University of Washington, Seattle, WA 98195-1525, USA
| | - Lane H Seeley
- Department of Physics, Seattle Pacific University, Seattle, WA 98199-1997, USA
| | - Joseph A Sisneros
- Department of Psychology, University of Washington, Seattle, WA 98195-1525, USA .,Department of Biology, University of Washington, Seattle, WA 98195-1800, USA.,Virginia Merrill Bloedel Hearing Research Center, University of Washington, Seattle, WA 98195-7923, USA
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11
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Vetter BJ, Seeley LH, Sisneros JA. Lagenar potentials of the vocal plainfin midshipman fish, Porichthys notatus. J Comp Physiol A Neuroethol Sens Neural Behav Physiol 2019; 205:163-175. [PMID: 30635725 DOI: 10.1007/s00359-018-01314-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Revised: 12/19/2018] [Accepted: 12/26/2018] [Indexed: 11/29/2022]
Abstract
The plainfin midshipman fish (Porichthys notatus) is a species of marine teleost that produces acoustic signals that are important for mediating social behavior. The auditory sensitivity of the saccule is well established in this species, but the sensitivity and function of the midshipman's putative auditory lagena are unknown. Here, we characterize the auditory-evoked potentials from hair cells in the lagena of reproductive type I males to determine the frequency response and auditory sensitivity of the lagena to behaviorally relevant acoustic stimuli. Lagenar potentials were recorded from the caudal and medial region of the lagena, while acoustic stimuli were presented by an underwater speaker. Our results indicate that the midshipman lagena has a similar low-frequency sensitivity to that of the midshipman saccule based on sound pressure and acceleration (re: 1 µPa and 1 ms-2, respectively), but the thresholds of the lagena were higher across all frequencies tested. The relatively high auditory thresholds of the lagena may be important for encoding high levels of behaviorally relevant acoustic stimuli when close to a sound source.
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Affiliation(s)
- Brooke J Vetter
- Department of Psychology, University of Washington, Seattle, WA, 98195-1525, USA.
| | - Lane H Seeley
- Department of Physics, Seattle Pacific University, Seattle, WA, 98199-1997, USA
| | - Joseph A Sisneros
- Department of Psychology, University of Washington, Seattle, WA, 98195-1525, USA.,Department of Biology, University of Washington, Seattle, WA, 98195-1800, USA.,Virginia Merrill Bloedel Hearing Research Center, University of Washington, Seattle, WA, 98195-7923, USA
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12
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Dornburg A, Warren DL, Zapfe KL, Morris R, Iglesias TL, Lamb A, Hogue G, Lukas L, Wong R. Testing ontogenetic patterns of sexual size dimorphism against expectations of the expensive tissue hypothesis, an intraspecific example using oyster toadfish ( Opsanus tau). Ecol Evol 2018; 8:3609-3616. [PMID: 29686842 PMCID: PMC5901164 DOI: 10.1002/ece3.3835] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Revised: 12/04/2017] [Accepted: 12/06/2017] [Indexed: 11/09/2022] Open
Abstract
Trade‐offs associated with sexual size dimorphism (SSD) are well documented across the Tree of Life. However, studies of SSD often do not consider potential investment trade‐offs between metabolically expensive structures under sexual selection and other morphological modules. Based on the expectations of the expensive tissue hypothesis, investment in one metabolically expensive structure should come at the direct cost of investment in another. Here, we examine allometric trends in the ontogeny of oyster toadfish (Opsanus tau) to test whether investment in structures known to have been influenced by strong sexual selection conform to these expectations. Despite recovering clear changes in the ontogeny of a sexually selected trait between males and females, we find no evidence for predicted ontogenetic trade‐offs with metabolically expensive organs. Our results are part of a growing body of work demonstrating that increased investment in one structure does not necessarily drive a wholesale loss of mass in one or more organs.
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Affiliation(s)
- Alex Dornburg
- North Carolina Museum of Natural Sciences Raleigh NC USA
| | - Dan L Warren
- Senckenberg Institute for Biodiversity and Climate Frankfurt am Main Germany
| | | | - Richard Morris
- North Carolina Museum of Natural Sciences Raleigh NC USA
| | - Teresa L Iglesias
- Physics and Biology Unit Okinawa Institute of Science and Technology Graduate University Okinawa Japan
| | - April Lamb
- North Carolina Museum of Natural Sciences Raleigh NC USA.,Department of Applied Ecology North Carolina State University Raleigh NC USA
| | - Gabriela Hogue
- North Carolina Museum of Natural Sciences Raleigh NC USA
| | - Laura Lukas
- North Carolina Museum of Natural Sciences Raleigh NC USA
| | - Richard Wong
- Delaware Division of Fish and Wildlife Dover DE USA
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13
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Mohr RA, Chang Y, Bhandiwad AA, Forlano PM, Sisneros JA. Brain Activation Patterns in Response to Conspecific and Heterospecific Social Acoustic Signals in Female Plainfin Midshipman Fish, Porichthys notatus. BRAIN, BEHAVIOR AND EVOLUTION 2018; 91:31-44. [PMID: 29597197 DOI: 10.1159/000487122] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Accepted: 01/24/2018] [Indexed: 01/09/2023]
Abstract
While the peripheral auditory system of fish has been well studied, less is known about how the fish's brain and central auditory system process complex social acoustic signals. The plainfin midshipman fish, Porichthys notatus, has become a good species for investigating the neural basis of acoustic communication because the production and reception of acoustic signals is paramount for this species' reproductive success. Nesting males produce long-duration advertisement calls that females detect and localize among the noise in the intertidal zone to successfully find mates and spawn. How female midshipman are able to discriminate male advertisement calls from environmental noise and other acoustic stimuli is unknown. Using the immediate early gene product cFos as a marker for neural activity, we quantified neural activation of the ascending auditory pathway in female midshipman exposed to conspecific advertisement calls, heterospecific white seabass calls, or ambient environment noise. We hypothesized that auditory hindbrain nuclei would be activated by general acoustic stimuli (ambient noise and other biotic acoustic stimuli) whereas auditory neurons in the midbrain and forebrain would be selectively activated by conspecific advertisement calls. We show that neural activation in two regions of the auditory hindbrain, i.e., the rostral intermediate division of the descending octaval nucleus and the ventral division of the secondary octaval nucleus, did not differ via cFos immunoreactive (cFos-ir) activity when exposed to different acoustic stimuli. In contrast, female midshipman exposed to conspecific advertisement calls showed greater cFos-ir in the nucleus centralis of the midbrain torus semicircularis compared to fish exposed only to ambient noise. No difference in cFos-ir was observed in the torus semicircularis of animals exposed to conspecific versus heterospecific calls. However, cFos-ir was greater in two forebrain structures that receive auditory input, i.e., the central posterior nucleus of the thalamus and the anterior tuberal hypothalamus, when exposed to conspecific calls versus either ambient noise or heterospecific calls. Our results suggest that higher-order neurons in the female midshipman midbrain torus semicircularis, thalamic central posterior nucleus, and hypothalamic anterior tuberal nucleus may be necessary for the discrimination of complex social acoustic signals. Furthermore, neurons in the central posterior and anterior tuberal nuclei are differentially activated by exposure to conspecific versus other acoustic stimuli.
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Affiliation(s)
- Robert A Mohr
- Department of Psychology, University of Washington, Seattle, Washington, USA
| | - Yiran Chang
- Department of Biology, University of Washington, Seattle, Washington, USA
| | - Ashwin A Bhandiwad
- Department of Psychology, University of Washington, Seattle, Washington, USA
| | - Paul M Forlano
- Department of Biology, Brooklyn College, City University of New York, Brooklyn, New York, USA.,Program in Ecology, Evolution, and Behavior, The Graduate Center, City University of New York, New York, New York, USA.,Program in Neuroscience, The Graduate Center, City University of New York, New York, New York, USA.,Program in Behavioral and Cognitive Neuroscience, The Graduate Center, City University of New York, New York, New York, USA
| | - Joseph A Sisneros
- Department of Psychology, University of Washington, Seattle, Washington, USA.,Department of Biology, University of Washington, Seattle, Washington, USA.,Virginia Merrill Bloedel Hearing Research Center, Seattle, Washington, USA
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14
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Butler JM, Whitlow SM, Gwan AP, Chakrabarty P, Maruska KP. Swim bladder morphology changes with female reproductive state in the mouth-brooding African cichlid Astatotilapia burtoni. ACTA ACUST UNITED AC 2017; 220:4463-4470. [PMID: 29187622 DOI: 10.1242/jeb.163832] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Accepted: 10/02/2017] [Indexed: 11/20/2022]
Abstract
Mouth brooding is an extreme form of parental care in which the brooding parent carries the developing young in their buccal cavity for the duration of development. Brooding fish need to compensate for the brood weight on the anterior portion of their body. For fishes with a compartmentalized swim bladder, gas distribution between the chambers may aid in regulating buoyancy during brooding. To test this hypothesis, we took radiographs of Astatotilapia burtoni to compare the swim bladder morphology of gravid, mouth-brooding and recovering females. Following spawning, females carry developing fish in their buccal cavity for ∼2 weeks, resulting in a larger and rounder anterior swim bladder compartment. Comparatively, the swim bladder of gravid females is long and cylindrical. Using small beads to mimic brood weight and its effects on female buoyancy, swim bladder changes were induced that resembled those observed during brooding. Immediately after releasing their fry, brooding females swim at a positive angle of attack but correct their swimming posture to normal within 5 min, suggesting a rapid change in swim bladder gas distribution. These data provide new insights into how swim bladder morphology and swimming behavior change during mouth brooding, and suggest a compartmentalized swim bladder may be a morphological adaptation for mouth brooding.
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Affiliation(s)
- Julie M Butler
- Department of Biological Sciences, Louisiana State University, 202 Life Sciences Building, Baton Rouge, LA 70803, USA
| | - Sarah M Whitlow
- Department of Biological Sciences, Louisiana State University, 202 Life Sciences Building, Baton Rouge, LA 70803, USA
| | - Anwei P Gwan
- Department of Biological Sciences, Louisiana State University, 202 Life Sciences Building, Baton Rouge, LA 70803, USA
| | - Prosanta Chakrabarty
- Department of Biological Sciences, Louisiana State University, 202 Life Sciences Building, Baton Rouge, LA 70803, USA.,Museum of Natural Science, Louisiana State University, 119 Foster Hall, Baton Rouge, LA 70803 , USA
| | - Karen P Maruska
- Department of Biological Sciences, Louisiana State University, 202 Life Sciences Building, Baton Rouge, LA 70803, USA
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