Title

Comparing estimates of catch and effort for boat-based recreational fishing from aperiodic access-point surveys

Document Type

Journal Article

Publication Title

Fisheries Research

Publisher

Elsevier B.V.

RAS ID

29265

Comments

Originally published as: Lai, E. K. M., Mueller, U., Hyndes, G. A., & Ryan, K. L. (2019). Comparing estimates of catch and effort for boat-based recreational fishing from aperiodic access-point surveys. Fisheries Research, 219, Article 105305. Original publication available here

Abstract

Recreational fishing harvest fluctuates over time according to changes in fish abundance, fisher behaviour, fishery socio-economics and management regulations. Time series of catch and effort are often unavailable, even where harvests from the recreational sector are significant. When surveys are conducted infrequently, inferences between estimates of catch and effort over time may be uncertain, leading to limited understanding of fishery trends and responses to management changes. This study makes statistical comparisons of catch and effort from four access-point surveys between 1996/97 and 2009/10 for a boat-based recreational fishery in south-western Australia. Retained catches of demersal fish were significantly lower in 1996/97 (90,000 fish ± 4000 se) than 2005/06 (123,000 ± 4000), and subsequently declined in 2008/09 (95,000 ± 3500) and 2009/10 (57,000 ± 2000). In contrast, released catches increased substantially from 1996/97 (30,000 ± 2000) to 2009/10 (94,000 ± 4000). While fluctuations in retained catch corresponded with ocean-line fishing effort, sustained increases in released catch followed reduced bag limits and increased size limits and recruitment of juvenile fish for some species. This study highlights the need to monitor recreational fisheries at appropriate intervals, particularly when the impacts of management changes on fish populations need to be considered.

DOI

10.1016/j.fishres.2019.06.003

Access Rights

Not free_to_read

AAM requested, Eva Lai, 24/07/2019

24 month embargo

Add cover page© . This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/

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