The art of otolith chemistry: Interpreting patterns by integrating perspectives

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dc.contributor.authorWalther, Benjamin
dc.creator.orcid0000-0002-2902-4001en_US
dc.creator.orcidhttps://orcid.org/0000-0002-2902-4001
dc.creator.orcidhttps://orcid.org/0000-0002-2902-40010000-0002-2902-4001
dc.date.accessioned2022-02-01T18:42:33Z
dc.date.available2022-02-01T18:42:33Z
dc.date.issued2019-01-21
dc.description.abstractThe ability to obtain high-resolution chemical profiles across otoliths has expanded with technological advancements that prompted an explosion of data from diverse taxa in coastal, marine and freshwater systems worldwide. The questions pursued by most otolith chemists fall broadly into six categories: identifying origins, tracking migration, reconstructing environments, quantifying growth or physiology, validating ages and assessing diets. Advances in instrumentation have widened the periodic table of otolith elements, and two-dimensional mapping has further illuminated spatial heterogeneity across these complex structures. Although environmental drivers of observed elemental signatures in otoliths are often assumed to be paramount, multiple intrinsic and extrinsic factors can disrupt simple relationships between an element and a single environmental parameter. An otolith chemical profile is not a direct photograph of an environment, but rather an impressionistic image filtered through the multifaceted experiences of the fish itself. A ‘signal-to-noise’ approach that assesses the relative magnitudes of variation from intrinsic and extrinsic factors on chemical profiles may be a promising way to resolve the factor of interest against the ‘noise’ of others. A robust appreciation of environmental drivers, physiological regulation and calcification dynamics that affect the ability to effectively interpret otolith chemical patterns is necessary to drive the field forward.en_US
dc.identifier.citationWalther, B.D., 2019. The art of otolith chemistry: interpreting patterns by integrating perspectives. Marine and Freshwater Research, 70(12), pp.1643-1658.en_US
dc.identifier.doihttps://doi.org/10.1071/MF18270
dc.identifier.urihttps://hdl.handle.net/1969.6/90126
dc.language.isoen_USen_US
dc.publisherCSIRO Publishingen_US
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectbariumen_US
dc.subjectcarbonatesen_US
dc.subjectincrementsen_US
dc.subjectmembranesen_US
dc.subjectstable isotopesen_US
dc.subjectstrontiumen_US
dc.titleThe art of otolith chemistry: Interpreting patterns by integrating perspectivesen_US
dc.typeArticleen_US

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