Journal article

Otolith microchemistry of two amphidromous galaxiids across an experimental salinity gradient: A multi-element approach for tracking diadromous migrations

Andy S Hicks, Gerard P Closs, Stephen E Swearer

JOURNAL OF EXPERIMENTAL MARINE BIOLOGY AND ECOLOGY | ELSEVIER | Published : 2010

Abstract

An increasing number of studies are uncovering considerable flexibility in migration patterns of diadromous fishes. The development of otolith microchemical techniques has largely driven this research and led to an appreciation of the significance of facultative diadromy in the life history of numerous species. However, validation experiments need to be undertaken for each species and life stage of interest before diadromous migrations can be confidently reconstructed. These validation experiments are required to establish a salinity calibration series against which the otolith microchemistry of unknown individuals can be compared. To facilitate research on facultative amphidromy in galaxiid..

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University of Melbourne Researchers

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Funding Acknowledgements

We thank Charles Mitchell for the advice on rearing larval galaxiids, Kim Garrett for technical support with animal husbandry and two anonymous referees for positive and constructive feedback. Hicks was supported by an Otago University Postgraduate Scholarship. Funding from the University of Otago Zoology Department and the Australian Society for Fish Biology (Barry Jonassen award) covered microchemical costs. [ST]