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Integrating complementary methods to improve diet analysis in fishery-targeted species

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dc.contributor University Of Windsor
dc.contributor Csiro
dc.contributor Ctr Sustainable Trop Fisheries & Aquaculture
dc.contributor Univ Windsor
dc.contributor Uz Leuven Genom Core
dc.contributor Australian Institute Of Marine Science
dc.contributor Ctr Marine & Environm Studies
dc.contributor Comparat Genom Ctr
dc.contributor James Cook University
dc.contributor Coll Sci & Engn
dc.contributor Oceans & Atmosphere
dc.contributor Lab Biodivers & Evolutionary Genom
dc.contributor Univ Virgin Isl
dc.contributor Commonwealth Scientific & Industrial Research Organisation (csiro)
dc.contributor Ctr Human Genet
dc.contributor Australian Inst Marine Sci
dc.contributor James Cook Univ
dc.contributor Great Lakes Inst Environm Res
dc.contributor Ku Leuven
dc.contributor Katholieke Univ Leuven SIMPFENDORFER, COLIN A. DEVLOO-DELVA, FLORIAAN TOBIN, ANDREW J. HEUPEL, MICHELLE R. MATLEY, JORDAN K. MAES, GREGORY E. HUERLIMANN, ROGER CHUA, GLADYS FISK, AARON T. 2018-11-04T18:52:05Z 2018-11-04T18:52:05Z 2019-05-09T01:05:15Z 2018-11-04T18:52:05Z 2018-11-04T18:52:05Z 2019-05-09T01:05:15Z 2018-09-01
dc.identifier.citation Matley JK, Maes GE, Devloo-Delva F, Huerlimann R, Chua G, Tobin AJ, Fisk AT, Simpfendorfer CA, Heupel MR (2018) Integrating complementary methods to improve diet analysis in fishery-targeted species. Ecology and Evolution 8: 9503-9515
dc.identifier.issn 2045-7758
dc.description.abstract Developing efficient, reliable, cost-effective ways to identify diet is required to understand trophic ecology in complex ecosystems and improve food web models. A combination of techniques, each varying in their ability to provide robust, spatially and temporally explicit information can be applied to clarify diet data for ecological research. This study applied an integrative analysis of a fishery-targeted species groupPlectropomus spp. in the central Great Barrier Reef, Australia, by comparing three diet-identification approaches. Visual stomach content analysis provided poor identification with similar to 14% of stomachs sampled resulting in identification to family or lower. A molecular approach was successful with prey from similar to 80% of stomachs identified to genus or species, often with several unique prey in a stomach. Stable isotope mixing models utilizing experimentally derived assimilation data, identified similar prey as the molecular technique but at broader temporal scales, particularly when prior diet information was incorporated. Overall, Caesionidae and Pomacentridae were the most abundant prey families (>50% prey contribution) for all Plectropomus spp., highlighting the importance of planktivorous prey. Less abundant prey categories differed among species/color phases indicating possible niche segregation. This study is one of the first to demonstrate the extent of taxonomic resolution provided by molecular techniques, and, like other studies, illustrates that temporal investigations of dietary patterns are more accessible in combination with stable isotopes. The consumption of mainly planktivorous prey within this species group has important implications within coral reef food webs and provides cautionary information regarding the effects that changing resources could have in reef ecosystems.
dc.description.sponsorship Australian Government's National Environmental Research Program; Australian Research Council Future Fellowship, Grant/Award Number: #FT100101004; Canadian Research Chairs Program; James Cook University's College of Marine and Environmental Sciences and Graduate Research School; Australian Coral Reef Society; Natural Sciences and Engineering Research Council; Queensland Department of Primary Industries and Fisheries, Grant/Award Number: 144482
dc.language English
dc.subject Plectropomus
dc.subject Marine Reserves
dc.subject Fisheries
dc.subject Diversity
dc.subject Evolutionary Biology
dc.subject Stable Isotopes
dc.subject Environmental Sciences & Ecology
dc.subject Ecology
dc.subject Stomach Contents
dc.subject Coral Reef
dc.subject Diet
dc.subject Temporal Variation
dc.subject Ecological Consequences
dc.subject Plectropomus-leopardus
dc.subject Coral Trout
dc.subject Coral-reef Fish
dc.subject Communities
dc.subject Metabarcoding
dc.subject Serranidae
dc.subject Dna
dc.subject Habitat Degradation
dc.subject Next-generation Sequencing
dc.title Integrating complementary methods to improve diet analysis in fishery-targeted species
dc.type journal article
dc.identifier.doi 10.1002/ece3.4456
dc.identifier.wos WOS:000447756100031

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