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- W2075159810 abstract "MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout the JournalEditorsTheme Sections MEPS 399:273-283 (2010) - DOI: https://doi.org/10.3354/meps08337 Size-selectivity of predatory reef fish on juvenile prey Thomas H. Holmes1, 2,*, Mark I. McCormick1 1ARC Centre of Excellence for Coral Reef Studies, and School of Marine and Tropical Biology, James Cook University, Townsville, Queensland 4811, Australia 2Present address: Marine Science Program, Science Division, Department of Environment and Conservation, Kensington, Western Australia 6151, Australia *Email: thomas.holmes@dec.wa.gov.au ABSTRACT: For organisms with complex life cycles, the selective nature of predation during high mortality transitional periods is thought to play a large role in determining the community structure of later life stages. Here we investigate the dynamic nature of size selection by predators on coral reef fishes during the transitional early post-settlement period. A series of aquarium-based predator choice trials were used to examine the selective nature of 4 predatory fish species (Pseudochromis fuscus, Thalassoma lunare, Synodus dermatogenys and Cephalopholis microprion) known to be responsible for a majority of predation on early juvenile reef fish. A single species of common damselfish (Pomacentrus amboinensis) was used as a model prey species. Experiments were conducted on both naïve settlement-stage individuals and more ‘experienced’ early juveniles in order to examine the changing dynamic of the interactions through time. The intensity and direction of size selection was found to differ significantly between predator species during both the settlement and early juvenile stage trials, with some species preferentially removing smaller individuals, while others removed larger individuals or were non-selective. Predator gape size played a limited role across all interactions, while selectivity was not found to differ with changing predator ontogeny. Our results highlight the complexity of predator–prey relationships within multi-species communities and suggest that no specific expression of a phenotypic trait holds a definitive survival advantage during all encounters. Instead, prey survival will in part be determined by the suite of predators present at the location of settlement, and how they interact with the available prey community. KEY WORDS: Predation · Selection · Body size · Gape limitation · Reef fish · Predator ontogeny Full text in pdf format PreviousNextCite this article as: Holmes TH, McCormick MI (2010) Size-selectivity of predatory reef fish on juvenile prey. Mar Ecol Prog Ser 399:273-283. https://doi.org/10.3354/meps08337 Export citation RSS - Facebook - Tweet - linkedIn Cited by Published in MEPS Vol. 399. Online publication date: January 28, 2010 Print ISSN: 0171-8630; Online ISSN: 1616-1599 Copyright © 2010 Inter-Research." @default.
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- W2075159810 title "Size-selectivity of predatory reef fish on juvenile prey" @default.
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