Journal article
Correlated environmental DNA and electrofished estimates of relative biomass for golden perch, Macquaria ambigua
Frontiers in Fish Science, Vol.2, 1358572
12/03/2024
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Abstract
In response to the need to augment electrofishing surveys of golden perch, Macquaria ambigua (an important endemic freshwater fish in southeastern Australia), with other non-lethal survey methods, the utility of environmental DNA (eDNA) as an index of relative fish abundance/biomass was investigated. From three adjacent rivers, five sites in each were sampled for eDNA immediately before electrofishing during sequential years. Up to six individuals or 10 kg of electrofished golden perch (200–548 mm total length) were caught or observed site−1. Analyses of concurrent eDNA concentrations revealed no significant relationship with the relative abundance of golden perch, but there was with relative biomass—manifesting as increasing eDNA concentrations between 1.1 and approximately 5.5 kg biomass site−1, after which concentrations stabilized at greater biomasses. Future research warrants assessing the viability of sampling eDNA for spatio-temporally monitoring rivers where low biomasses of golden perch (1–5 kg site−1) are likely to occur.
Details
- Title
- Correlated environmental DNA and electrofished estimates of relative biomass for golden perch, Macquaria ambigua
- Creators
- Meaghan L. Rourke - New South Wales Department of Primary IndustriesMatt K. Broadhurst - Southern Cross UniversityAshley M. Fowler - Sydney Institute of Marine ScienceJulian M. Hughes - New South Wales Department of Primary IndustriesJoseph D. DiBattista - Australian MuseumElise M. Furlan - University of Canberra
- Publication Details
- Frontiers in Fish Science, Vol.2, 1358572
- Grant note
- 2019-016 / Fisheries Research and Development Corporation (http://data.elsevier.com/vocabulary/SciValFunders/501100000979) NSW Department of Primary Industries and Regional Development (http://data.elsevier.com/vocabulary/SciValFunders/100010000) Department of Primary Industries (http://data.elsevier.com/vocabulary/SciValFunders/100008431) Government of Western Australia (http://data.elsevier.com/vocabulary/SciValFunders/501100011025) Fisheries Research and Development Corporation (http://data.elsevier.com/vocabulary/SciValFunders/501100000979)
- Identifiers
- 991013372749402368
- Copyright
- © 2024 Rourke, Broadhurst, Fowler, Hughes, DiBattista and Furlan. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
- Academic Unit
- Faculty of Science and Engineering; National Marine Science Centre
- Language
- English
- Resource Type
- Journal article