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dc.contributor.authorPearson, Ryan
dc.contributor.authorStevens, Tim
dc.date.accessioned2017-08-18T03:44:59Z
dc.date.available2017-08-18T03:44:59Z
dc.date.issued2015
dc.identifier.issn0171-8630
dc.identifier.doi10.3354/meps11351
dc.identifier.urihttp://hdl.handle.net/10072/141089
dc.description.abstractThe hypothesized importance of mesophotic (30 to 150 m depth) reefs justifies the recent trend in scientific scrutiny of these systems. However, to enable assessment of complex concepts such as connectivity and reef dynamics, baseline assemblage characteristics must first be established. This study used baited remote underwater video (BRUV) technology to investigate the assemblage structure of predatory and scavenging fishes across 4 mesophotic reef bands at ca. 30 to 82 m depth, at 2 locations 25 km apart in subtropical eastern Australia. We aimed to quantify patterns in predatory and scavenging fish assemblage structure at these reefs across the continental shelf and relate this to putative structuring environmental variables. Strong cross-shelf gradients were identified in species richness and overall assemblage composition. While the pattern of latitudinal affiliation did not change across the shelf, predatory and scavenging fish assemblages at non-adjacent reefs were statistically distinct (PERMANOVA interaction term p = 0.012), and best (but not well) explained by depth alone (BIOENV ρ = 0.396). A high proportion (15 to 45%) of the fish species at each reef band were found only within that band. These cross-shelf trends contrasted with those described from more complex shelf topography such as at the Solitary Islands (250 km south), and did not match published patterns of epibenthic assemblage structure. Our results highlight the need for detailed information on mesophotic reef assemblage structure to support marine conservation and reserve design initiatives, rather than relying on generalised trends from the literature.
dc.description.peerreviewedYes
dc.languageEnglish
dc.language.isoeng
dc.publisherInter-Research
dc.relation.ispartofpagefrom185
dc.relation.ispartofpageto196
dc.relation.ispartofjournalMarine Ecology Progress Series
dc.relation.ispartofvolume532
dc.subject.fieldofresearchBiological Sciences not elsewhere classified
dc.subject.fieldofresearchOceanography
dc.subject.fieldofresearchEcology
dc.subject.fieldofresearchZoology
dc.subject.fieldofresearchcode069999
dc.subject.fieldofresearchcode0405
dc.subject.fieldofresearchcode0602
dc.subject.fieldofresearchcode0608
dc.titleDistinct cross-shelf gradient in mesophotic reef fish assemblages in subtropical eastern Australia
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
dc.description.versionVersion of Record (VoR)
gro.facultyAn Unassigned Group, An Unassigned Department
gro.rights.copyright© 2015 Inter Research. The attached file is reproduced here in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version.
gro.hasfulltextFull Text
gro.griffith.authorStevens, Tim F.
gro.griffith.authorPearson, Ryan M.


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