- Title
- Evaluation of adaptive spatial management in a multi-jurisdictional trawl fishery
- Creator
- Taylor, Matthew D.; Johnson, Daniel D.
- Relation
- Regional Studies in Marine Science Vol. 35, Issue March 2020, no. 101206
- Publisher Link
- http://dx.doi.org/10.1016/j.rsma.2020.101206
- Publisher
- Elsevier
- Resource Type
- journal article
- Date
- 2020
- Description
- Management of exploited resources that span multiple jurisdictions can be complex, with activities in one area potentially affecting productivity in another. Consequently, management decisions need to consider implications across the entire area in which the resource occurs. The study presents a unique study design that examines the impact of spatial management across two jurisdictions in an Australian penaeid multi-jurisdictional trawl fishery. Specifically, two areas relevant to Eastern King Prawn (Penaeus [Melicertus] plebejus; EKP, an important penaeid species harvested across eastern Australia) that are closed to trawling (on a permanent, and temporary basis) were evaluated using a combination of trawl and tag-recapture surveys. Over 1,250 EKP were tagged and released across the permanent and temporary trawl closure, and 15.4% of all tagged prawns were recaptured and reported by fishers in both New South Wales (33% of recaptures) and the adjacent jurisdiction of Queensland (67% of recaptures, up to 730 km from the point of tagging) during 7 months post-tagging. There were significant differences in prawn size and abundance across the permanent and temporary trawl closure areas with both depth and distance to the adjacent estuarine nursery explaining these patterns, but prawns generally exceeded the minimum size-at-first-capture estimated by relevant yield per recruit models before they left areas closed to trawling. While more prawns were captured in Queensland, recapture rates were far greater in New South Wales when standardised by relative effort. Patterns in these data highlight the broader considerations of spatial management in multi-jurisdictional fisheries.
- Subject
- tagging; yield per recruit; closures; juvenile; migration; Eastern king prawn; South eastern Australia
- Identifier
- http://hdl.handle.net/1959.13/1461923
- Identifier
- uon:46339
- Identifier
- ISSN:2352-4855
- Language
- eng
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