Show simple item record

dc.contributor.authorSpencer, David M
dc.contributor.authorBrown, Ian W
dc.contributor.authorDoubell, Mark J
dc.contributor.authorMcGarvey, Richard
dc.contributor.authorLee, Shing Y
dc.contributor.authorLemckert, Charles J
dc.date.accessioned2019-09-16T23:39:49Z
dc.date.available2019-09-16T23:39:49Z
dc.date.issued2019
dc.identifier.issn1942-5120
dc.identifier.doi10.1002/mcf2.10073
dc.identifier.urihttp://hdl.handle.net/10072/387376
dc.description.abstractDuring daily fishing operations, spanner crab Ranina ranina catch rates can fluctuate substantially, but the environmental drivers responsible for these fluctuations largely remain unresolved. Earlier research suggests that spanner crab catchability increases with strengthening currents, but uncertainties surround the magnitude of the measured current speeds and, consequently, their relationship with catch rates. Here, we explore the effects of bottom currents on spanner crab catch rates in South East Queensland, Australia. Using generalized additive mixed modeling, our results indicated that strengthening current speeds increased catch rates until reaching approximately 0.15 m/s, at which point the catch rates began to gradually decline. Results from a general linear regression model also showed that between fishing periods carried out on the same day, catch rates increased or decreased concurrently with current speeds. We conclude that bottom current speed should be considered in future stock assessment models. Better understanding the processes responsible for changes in bottom current speed will enable more accurate estimates of spanner crab population densities in the Australian fishery and will benefit the economic efficiency of commercial crabbing operations. Furthermore, future studies that investigate the effects of current speed on catch rates for other crab species should consider differences in locomotory characteristics and how they may impact the foraging efficiency of crabs under different flow conditions.
dc.description.peerreviewedYes
dc.languageEnglish
dc.publisherWiley
dc.relation.ispartofpagefrom248
dc.relation.ispartofpageto257
dc.relation.ispartofissue3
dc.relation.ispartofjournalMarine and Coastal Fisheries
dc.relation.ispartofvolume11
dc.subject.fieldofresearchEngineering
dc.subject.fieldofresearchcode09
dc.subject.keywordsScience & Technology
dc.subject.keywordsLife Sciences & Biomedicine
dc.subject.keywordsFisheries
dc.subject.keywordsMarine & Freshwater Biology
dc.subject.keywordsRANINA-RANINA
dc.titleBottom Currents Affect Spanner Crab Catch Rates in Southern Queensland, Australia
dc.typeJournal article
dc.type.descriptionC1 - Articles
dcterms.bibliographicCitationSpencer, DM; Brown, IW; Doubell, MJ; McGarvey, R; Lee, SY; Lemckert, CJ, Bottom Currents Affect Spanner Crab Catch Rates in Southern Queensland, Australia, Marine and Coastal Fisheries, 2019, 11 (3), pp. 248-257
dcterms.licensehttp://creativecommons.org/licenses/by/4.0/
dc.date.updated2019-09-16T23:35:52Z
dc.description.versionPublished
gro.rights.copyright© 2019 The Authors. Marine and Coastal Fisheries published by Wiley Periodicals, Inc. on behalf of American Fisheries Society. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
gro.hasfulltextFull Text
gro.griffith.authorLemckert, Charles J.
gro.griffith.authorSpencer, David M.
gro.griffith.authorLee, Joe Y.


Files in this item

This item appears in the following Collection(s)

  • Journal articles
    Contains articles published by Griffith authors in scholarly journals.

Show simple item record