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Influence of different feeding regimes on the survival, growth, and biochemical composition of Acropora coral recruits

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dc.contributor Australian Inst Marine Sci
dc.contributor Deakin Univ
dc.contributor Australian Institute Of Marine Science
dc.contributor Deakin University
dc.contributor Sch Life & Environm Sci
dc.contributor Natl Sea Simulator
dc.contributor.author FRANCIS, DAVID S.
dc.contributor.author SEVERATI, ANDREA
dc.contributor.author HUMPHREY, CRAIG A.
dc.contributor.author CONLAN, JESSICA A.
dc.date.accessioned 2017-12-24T18:44:05Z
dc.date.accessioned 2017-12-24T18:44:05Z
dc.date.accessioned 2018-11-01T03:07:17Z
dc.date.available 2017-12-24T18:44:05Z
dc.date.available 2017-12-24T18:44:05Z
dc.date.available 2018-11-01T03:07:17Z
dc.date.issued 2017-11-28
dc.identifier.citation Conlan JA, Humphrey CA, Severati A, Francis DS (2017) Influence of different feeding regimes on the survival, growth, and biochemical composition of Acropora coral recruits. PLoS ONE 12(11): e0188568
dc.identifier.issn 1932-6203
dc.identifier.uri http://epubs.aims.gov.au/11068/12181
dc.description.abstract Heterotrophic feeding in newly-settled coral planulae can potentially improve survivorship and accelerate early development in some species; however, an optimal diet to facilitate this does not currently exist. This study evaluated the efficacy of three heterotrophic feeding regimes (enriched rotifers, unfiltered seawater, and a novel, particulate diet), against a wholly-phototrophic treatment on Acropora hyacinthus, A. loripes, A. millepora, and A. tenuis recruits, over 93 days post-settlement. The unfiltered seawater treatment recorded maximum survival for all species (A. hyacinthus 95.9 +/- 8.0%, A. loripes: 74.3 +/- 11.5%, A. millepora: 67 +/- 12.7%, A. tenuis: 53.2 +/- 11.3%), although not significant. Growth (% surface area gain) was also greatest in the unfiltered seawater, and this was significant for A. millepora (870 +/- 307%) and A. tenuis (693 +/- 91.8%) (p< 0.05). Although total lipid concentration was relatively stable across treatments, the lipid class composition exhibited species-specific responses to each treatment. Lower saturated and higher polyunsaturated fatty acids appeared beneficial to recruit performance, particularly in the unfiltered seawater, which generally contained the highest levels of 20: 5n-3 (EPA), 22:6n-3 (DHA), and 20:4n-6 (ARA). The present study demonstrates the capacity of a nutritionally adequate and readily accepted heterotrophic feeding regime to increase coral recruit survival, growth, and health, which can greatly reduce the time required in cost-and labour-intensive culture.
dc.language English
dc.subject Heterotrophy
dc.subject Zooxanthellae
dc.subject Marine Fish
dc.subject Settlement
dc.subject Science & Technology - Other Topics
dc.subject Postsettlement Survival
dc.subject Scleractinian Coral
dc.subject Porites-compressa
dc.subject Thermal-stress
dc.subject Multidisciplinary Sciences
dc.subject Fatty-acid
dc.subject Stylophora-pistillata
dc.title Influence of different feeding regimes on the survival, growth, and biochemical composition of Acropora coral recruits
dc.type journal article
dc.identifier.doi 10.1371/journal.pone.0188568
dc.identifier.wos WOS:000416402000037


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