Insights into fish auditory structure–function relationships from morphological and behavioural ontogeny in a maturing sciaenid

Taylor, MD; Fowler, AM; Suthers, IM

Insights into fish auditory structure–function relationships from morphological and behavioural ontogeny in a maturing sciaenid

Taylor, MD Fowler, AM Suthers, IM

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Publisher:: Springer Science and Business Media LLC
Publication Type:: Journal Article
Citation:: Marine Biology, 2020, 167, (2), pp. 21
Issue Date:: 2020-02-01

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Field	Value	Language
dc.contributor.author	Taylor, MD
dc.contributor.author	Fowler, AM
dc.contributor.author	Suthers, IM
dc.date.accessioned	2021-02-19T22:02:44Z
dc.date.available	2021-02-19T22:02:44Z
dc.date.issued	2020-02-01
dc.identifier.citation	Marine Biology, 2020, 167, (2), pp. 21
dc.identifier.issn	0025-3162
dc.identifier.issn	1432-1793
dc.identifier.uri	http://hdl.handle.net/10453/146229
dc.description.abstract	© 2020, Springer-Verlag GmbH Germany, part of Springer Nature. Knowledge of the relationship between auditory form and function is necessary to understand the role of hearing in fish ecology, as well as the potential impacts of anthropogenic noise and environmental change on hearing-mediated functions. We explored the functional significance of otolith (ear stone) morphology in a large predatory sciaenid, Argyrosomus japonicus (Temminck and Schlegel), by comparing ontogenetic changes in otolith structure to changes in habitat, diet and swimming activity. We examined an otolith metric that has previously been linked to habitat use and activity in fishes, the relative sensory area (sulcus to otolith area ratio, S:O), and a new metric that quantifies the protuberant structure (calcareous concrescence) found on the distal surface of sciaenid otoliths (otolith perimeter to area ratio, P:SA). Strong allometric growth of the sulcus acusticus was detected in the sagitta of A. japonicus ranging from 7 to 80 cm TL. Both S:O and P:SA changed rapidly until A. japonicus reached 50 cm TL, after which only a gradual increase in relative sensory area was detected. The aspect ratio of the caudal fin (CAR, an index of swimming activity) abruptly increased in A. japonicus at 41–50 cm TL. These changes coincide with an observed shift in diet from benthic invertebrates to pelagic fish, a shift in foraging habitat and an increase in foraging activity.
dc.language	en
dc.publisher	Springer Science and Business Media LLC
dc.relation.ispartof	Marine Biology
dc.relation.isbasedon	10.1007/s00227-019-3619-9
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	05 Environmental Sciences, 06 Biological Sciences, 07 Agricultural and Veterinary Sciences
dc.subject.classification	Marine Biology & Hydrobiology
dc.title	Insights into fish auditory structure–function relationships from morphological and behavioural ontogeny in a maturing sciaenid
dc.type	Journal Article
utslib.citation.volume	167
utslib.for	05 Environmental Sciences
utslib.for	06 Biological Sciences
utslib.for	07 Agricultural and Veterinary Sciences
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Life Sciences
pubs.organisational-group	/University of Technology Sydney
utslib.copyright.status	closed_access	*
dc.date.updated	2021-02-19T22:02:28Z
pubs.issue	2
pubs.publication-status	Published
pubs.volume	167
utslib.citation.issue	2

Abstract:

© 2020, Springer-Verlag GmbH Germany, part of Springer Nature. Knowledge of the relationship between auditory form and function is necessary to understand the role of hearing in fish ecology, as well as the potential impacts of anthropogenic noise and environmental change on hearing-mediated functions. We explored the functional significance of otolith (ear stone) morphology in a large predatory sciaenid, Argyrosomus japonicus (Temminck and Schlegel), by comparing ontogenetic changes in otolith structure to changes in habitat, diet and swimming activity. We examined an otolith metric that has previously been linked to habitat use and activity in fishes, the relative sensory area (sulcus to otolith area ratio, S:O), and a new metric that quantifies the protuberant structure (calcareous concrescence) found on the distal surface of sciaenid otoliths (otolith perimeter to area ratio, P:SA). Strong allometric growth of the sulcus acusticus was detected in the sagitta of A. japonicus ranging from 7 to 80 cm TL. Both S:O and P:SA changed rapidly until A. japonicus reached 50 cm TL, after which only a gradual increase in relative sensory area was detected. The aspect ratio of the caudal fin (CAR, an index of swimming activity) abruptly increased in A. japonicus at 41–50 cm TL. These changes coincide with an observed shift in diet from benthic invertebrates to pelagic fish, a shift in foraging habitat and an increase in foraging activity.

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http://hdl.handle.net/10453/146229