Comparing the capacity of five different dietary treatments to optimise growth and nutritional composition in two scleractinian corals

Conlan, Jessica, Bay, Line K., Severati, Andrea, Humphrey, Craig and Francis, David S. 2018, Comparing the capacity of five different dietary treatments to optimise growth and nutritional composition in two scleractinian corals, PLoS one, vol. 13, no. 11, doi: 10.1371/journal.pone.0207956.

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Title Comparing the capacity of five different dietary treatments to optimise growth and nutritional composition in two scleractinian corals
Author(s) Conlan, JessicaORCID iD for Conlan, Jessica orcid.org/0000-0003-0908-0345
Bay, Line K.
Severati, Andrea
Humphrey, Craig
Francis, David S.ORCID iD for Francis, David S. orcid.org/0000-0002-4829-6926
Journal name PLoS one
Volume number 13
Issue number 11
Article ID e0207956
Total pages 20
Publisher PLoS
Place of publication San Francisco, Calif.
Publication date 2018-11-28
ISSN 1932-6203
Keyword(s) Science & Technology
Multidisciplinary Sciences
Science & Technology - Other Topics
POLYUNSATURATED FATTY-ACIDS
MARINE-INVERTEBRATES
HETEROTROPHY
ZOOXANTHELLAE
TISSUE
LIPIDS
BIOSYNTHESIS
METABOLISM
NITROGEN
STRESS
Summary Developing an optimal heterotrophic feeding regime has the potential to improve captive coral growth and health. This study evaluated the efficacy of three exogenous diets: Artemia nauplii (ART), a commercially available coral diet (Reef Roids) (RR), and a novel, micro-bound diet (ATF), against a comparatively natural, unfiltered seawater treatment (RAW), and an unfed, ultra-filtered seawater treatment (CTL), in adult Acropora millepora and Pocillopora acuta nubbins. After 90 days, both species showed significantly positive weight gain in response to one treatment (A. millepora-RAW, P. acuta-ART), and comparatively low growth in response to another (A. millepora-ATF, P. acuta-RR). The results highlighted substantial differences in the nutritional requirements between species. The nutritional composition of A. millepora in the best performing treatment was dominated by high-energy materials such as storage lipids and saturated and monounsaturated fatty acids. In contrast, the P. acuta nutritional profile in the superior treatment showed a predominance of structural materials, including protein, phospholipids, and polyunsaturated fatty acids. This study demonstrates that Artemia nauplii can successfully replace a natural feeding regime for captive P. acuta, yet highlights the considerable work still required to optimise supplementary feeding regimes for A. millepora.
Language eng
DOI 10.1371/journal.pone.0207956
Field of Research MD Multidisciplinary
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2018, Conlan et al.
Persistent URL http://hdl.handle.net/10536/DRO/DU:30117150

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