Journal article
Connectivity, migration and recruitment in a catadromous fish
CM Bice, BP Zampatti, JR Morrongiello
Marine and Freshwater Research | CSIRO PUBLISHING | Published : 2018
DOI: 10.1071/MF17388
Abstract
Understanding the influence of river hydrology and connectivity on the migration and recruitment of diadromous fishes is fundamental for species management and conservation. We investigated the downstream catadromous spawning migration of adult female congolli (Pseudaphritis urvillii) using acoustic telemetry, and subsequent juvenile recruitment, in the lower reaches of the River Murray, Australia, in 2009-2011. The years 2009 and 2010 were characterised by diminished freshwater flow, closure of tidal barrages, and disconnection of freshwater and estuarine habitats; however, a navigation lock was operated to facilitate downstream fish passage in 2010. In both years, >70% of individuals tagge..
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Funding Acknowledgements
This project was jointly funded by the South Australian Department for Water (now the Department of Environment, Water and Natural Resources, DEWNR) and Murray-Darling Basin Authority (The Living Murray Program). We thank Adrienne Rumbelow, Jason Higham and Russell Seaman (DEWNR) for management and support of the project. The following SARDI staff assisted with receiver deployment and download, fish capture, and map production: Paul Jennings, Arron Strawbridge, Ian Magraith and Josh Fredberg. Thanks to Bronwyn Gillanders (University of Adelaide) and two anonymous reviewers for comments on the manuscript. All sampling was conducted under an exemption (number 9902132) of section 115 of the Fisheries Management Act 2007 and in accordance with the University of Adelaide's Animal Ethics Policy.