Abstract
Acquisition of biological information on invasive fishes during the early stages of invasion could be critical in orienting subsequent management strategies. To achieve such a task, biological invasion researchers and practitioners take advantage of numerous technologies (e.g. genomics and acoustic telemetry). Surprisingly, the study of invasive fish ecology by analysis of the chemical composition of calcium carbonate hard parts (e.g. otoliths and scales) remains underutilized, despite some convincing examples of successful applications in the scientific literature. Among its most common applications in invasion biology, otolith chemistry has been used to identify natal origins, reconstruct migratory behaviour and assess mixed-stock structure. In this literature review, we provide a general overview of those previous applications but more importantly identify some gaps and obstacles to applications of otolith chemistry in invasion biology and suggest development for innovative applications, including use in wildlife forensic sciences and reconstruction of the early dynamics of invasions.
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We are grateful to many colleagues for discussions and thoughts about this work, mainly to the participants of the 2021 CCFFR-SCL conference, where this material was first presented. We also thank Dr. Jed Macdonald and one anonymous reviewer for the revision of this manuscript, which greatly improved the manuscript.
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Morissette, O., Whitledge, G. Listening with the invasive fish ear: applications and innovations of otolith chemistry analysis in invasive fish biology. Environ Biol Fish 105, 327–343 (2022). https://doi.org/10.1007/s10641-022-01217-9
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DOI: https://doi.org/10.1007/s10641-022-01217-9