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Accounting for habitat structural complexity improves the assessment of performance in no-take marine reserves

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dc.contributor Ctr Sustainable Ecosyst Solut
dc.contributor Univ Wollongong
dc.contributor Nsw Department Of Primary Industries
dc.contributor Nsw Dept Primary Ind
dc.contributor Australian Inst Marine Sci
dc.contributor University Of Wollongong
dc.contributor Australian Institute Of Marine Science
dc.contributor Sch Earth & Environm Sci
dc.contributor Uwa
dc.contributor Indian Ocean Marine Res Ctr
dc.contributor Sch Biol Sci
dc.contributor University Of Western Australia
dc.contributor Port Stephens Fisheries Inst JORDAN, ALAN REES, MATTHEW J. KNOTT, NATHAN A. LINKLATER, MICHELLE OSTERLOH, IAN DAVIS, ANDREW R. NEILSON, JOSEPH 2018-08-05T19:16:45Z 2018-08-05T19:16:45Z 2018-11-01T03:25:23Z 2018-08-05T19:16:45Z 2018-08-05T19:16:45Z 2018-11-01T03:25:23Z 2018-08-01
dc.identifier.citation Rees MJ, Knott NA, Neilson J, Linklater M, Osterloh I, Jordan A, Davis AR (2018) Accounting for habitat structural complexity improves the assessment of performance in no-take marine reserves. Biological Conservation 224 :100-110
dc.identifier.issn 0006-3207
dc.description.abstract Seascape variability may confound assessments on the effectiveness of no-take marine reserves (NTMRs) in conserving biodiversity. In most cases baseline data are lacking, resulting in evaluations of NTMR effectiveness being Control Impact (CI) assessments. Even with independent replicate areas among management zones, this approach can make it difficult to detect zone effects if seascape attributes, such as habitat structural complexity varies among experimental areas. To determine the importance of structural complexity in evaluations of NTMR effectiveness we performed assessments on the abundance of a targeted fish, yellowtail kingfish (Seriola lalandi), in the Lord Howe Island Marine Park (LHIMP). We compared assessments which did and did not account for structural complexity, quantified using high resolution multibeam bathymetry. Despite almost 3 times more S. lalandi in NTMRs, the traditional CI assessment explained only 3% of the variation in the abundance of S. lalandi and revealed no clear effect of protection. Incorporating structural complexity into the assessment increased the deviance explained to 65% and uncovered an important interaction between zone and structural complexity. Greater abundances of S. lalandi were detected in NTMRs compared to fished zones but only on highly complex reefs. By accounting for structural complexity, we demonstrate that the precision and accuracy of NTMR assessments can be improved, leading to a better understanding of ecological change in response to this conservation strategy. Consequently, where marine park zones vary greatly in structural complexity, we strongly advocate for quantifying and accounting for such variability in assessments of NTMR performance.
dc.language English
dc.subject Habitat Structural Complexity
dc.subject Ecology
dc.subject Remote Sensing
dc.subject Protected Areas
dc.subject Conservation
dc.subject Biodiversity Conservation
dc.subject Abundance
dc.subject Marine Reserves
dc.subject Seascape Ecology
dc.subject Pelagic Fish
dc.subject Coral-reef
dc.subject Environmental Sciences & Ecology
dc.subject Archipelago
dc.subject Environmental Sciences
dc.subject Marine Protected Areas
dc.subject Global Synthesis
dc.subject Communities
dc.subject Baited Video
dc.subject Fish Assemblages
dc.subject Biodiversity & Conservation
dc.subject Multibeam
dc.title Accounting for habitat structural complexity improves the assessment of performance in no-take marine reserves
dc.type journal article
dc.identifier.doi 10.1016/j.biocon.2018.04.040
dc.identifier.wos WOS:000439537600011

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