Journal article
Reducing the marine debris of recreational hoop nets in south-eastern Australia
Marine pollution bulletin, Vol.119, pp.40-47
15/06/2017
PMID: 28336208
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Source: InCites
Abstract
Alternative configurations of Australian recreational portunid hoop nets were investigated to address debris and selectivity issues. Four treatment nets (all comprising 152-mm polyamide–PA mesh) were assessed that differed in their twine (conventional multifilament vs new multi-monofilament) and fishing configuration (conventional conical vs inverted shapes). The conical multifilament design lost means (± SEs) of 130.6 ± 23.1 and 5.3 ± 1.2 mm of twine 3-h soak− 1 when used to target Scylla serrata and Portunus pelagicus. Inverting this hoop net significantly reduced legal-sized catches (by up to 70%) and with greater twine loss (× 5) when targeting P. pelagicus. Conversely, both multi-monofilament configurations maintained legal catches of S. serrata and P. pelagicus, but lost 78 and 95% less twine than the conical multifilament design. Using multi-monofilament hoop nets could reduce PA debris by thousands of m p.a. in south-eastern Australia, without affecting targeted catches. Further, a lower fishing height of inverted multi-monofilament nets might reduce non-portunid bycatch.
Details
- Title
- Reducing the marine debris of recreational hoop nets in south-eastern Australia
- Creators
- Matt K. Broadhurst - University of QueenslandRussell B. Millar - University of Auckland
- Publication Details
- Marine pollution bulletin, Vol.119, pp.40-47
- Publisher
- Elsevier Ltd
- Identifiers
- 991013101613502368
- Copyright
- © 2017 Elsevier Ltd. All rights reserved.
- Academic Unit
- Faculty of Science and Engineering
- Language
- English
- Resource Type
- Journal article