Time-location sampling with capture-recapture to assess specialised recreational fisheries

Zischke, Mitchell T. and Griffiths, Shane P. (2014) Time-location sampling with capture-recapture to assess specialised recreational fisheries. Fisheries Research, 157 136-146. doi:10.1016/j.fishres.2014.04.014

Author Zischke, Mitchell T.
Griffiths, Shane P.
Title Time-location sampling with capture-recapture to assess specialised recreational fisheries
Journal name Fisheries Research   Check publisher's open access policy
ISSN 0165-7836
Publication date 2014-09-01
Year available 2014
Sub-type Article (original research)
DOI 10.1016/j.fishres.2014.04.014
Open Access Status DOI
Volume 157
Start page 136
End page 146
Total pages 11
Place of publication Amsterdam, Netherlands
Publisher Elsevier
Language eng
Subject 1104 Aquatic Science
Abstract Specialisation in recreational fisheries has led to increasing diversification and segmentation of fishers into small 'hard-to-reach' populations that are inherently difficult and costly to sample using traditional methods. In this paper, we quantitatively assess, and expand upon, time-location sampling (TLS) for a specialised recreational sport fishery off eastern Australia using stratified random sampling of fishing tackle stores as aggregation points for fishers. Multiple TLS survey events facilitated the use of capture-recapture models to provide a minimum population size estimate of 3185 (SE 1338) fishers in the study region in 2010. Adopting a questionnaire with a long recall period (e.g. 12 months) may introduce biases in estimates of effort and catch from TLS. Therefore, these biases were corrected for using a 'benchmark' on-site survey, providing minimum estimates of effort and catch of 172,438 (SE 8440) angler hours and 4.7-31.4 (SE 2.6-6.8). t for six pelagic species, respectively, in the study region during 2010. TLS with capture-recapture is an efficient method for sampling hard-to-reach specialised fishers and may yield annual estimates of population size, effort and catch. Further research is needed to refine methods and develop systematic protocols that may be applied to a wide range of hard-to-reach populations, including recreational, artisanal and illegal fisheries.
Keyword Angler
Sport fishing
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
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