Interannual variation in a freshwater recreational fishery under the influence of drought, bushfires, floods and a global pandemic
Faith A. Ochwada-Doyle
A B * , Nathan Miles C , Julian M. Hughes A , Jeffrey J. Murphy D , Kate E. Stark E , Michael B. Lowry F , Laurie D. West G and Matthew D. Taylor B F
+ Author Affiliations
- Author Affiliations
A New South Wales Department of Primary Industries, Sydney Institute of Marine Science, Chowder Bay Road, Mosman, NSW 2088, Australia.
B University of New South Wales, Kensington, NSW, Australia.
C New South Wales Department of Primary Industries, Narrandera, NSW 2700, Australia.
D New South Wales Department of Primary Industries, Wollongong, NSW, Australia.
E University of Tasmania, Institute of Marine and Antarctic Studies, Hobart, Tas., Australia.
F New South Wales Department of Primary Industries, Port Stephens, NSW, Australia.
G Kewagama Research, Doonan, Qld, Australia.
Marine and Freshwater Research 74(12) 1102-1112 https://doi.org/10.1071/MF22142
Submitted: 17 July 2022 Accepted: 3 July 2023 Published: 3 August 2023
© 2023 The Author(s) (or their employer(s)). Published by CSIRO Publishing. This is an open access article distributed under the Creative Commons Attribution 4.0 International License (CC BY)
Abstract
Context: As social–ecological systems, recreational fisheries often vary temporally in response to environmental changes affecting ecological processes and human behaviour. Monitoring such variability in this ecosystem service can guide adaptive management measures for sustainability.
Aims: This novel research for Australian, sought to quantify interannual changes in the freshwater recreational fisheries of five key (i.e. commonly caught) finfish species (Murray cod, Maccullochella peelii; golden perch, Macquaria ambigua; Australian bass, Percalates novemaculeata; brown trout, Salmo trutta; and rainbow trout, Oncorhynchus mykiss) in relation to a series of extreme climate-related events and the COVID-19 pandemic.
Methods: Annual estimates during 2013–14, 2017–18 and 2019–20 of freshwater fishing effort and catch across New South Wales, Australia, were derived from off-site surveys and compared in relation to a severe drought period, the ‘Black Summer’ bushfires, widespread flooding and the COVID-19 pandemic, all of which affected fish productivity or human mobility.
Key results: There were significant declines in fishing effort between 2013–14, the year preceding the extreme environmental events and the pandemic, and 2017–18 and 2019–20. Catch across the five species was also significantly lower in 2019–20. Catch of species such as golden perch and rainbow trout declined from 2013–14 to 2019–20.
Conclusions and implications: This study can inform adaptive measures against societal and climate-related changes in weather by enabling scientists and managers to identify problematic trends.
Keywords: angling, cascading hazards, climate change, general linear mixed effects models, inland fisheries, Murray–Darling Basin, natural disasters, telephone-diary surveys.
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