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Convictfish on the move: variation in growth and trophic niche space along a latitudinal gradient

Published on Jun 30, 2019in Ices Journal of Marine Science3.367
· DOI :10.1093/icesjms/fsz098
T Miranda (UNSW: University of New South Wales), James A. Smith15
Estimated H-index: 15
(UNSW: University of New South Wales)
+ 5 AuthorsAdriana Vergés22
Estimated H-index: 22
(UNSW: University of New South Wales)
Abstract
  • References (59)
  • Citations (0)
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References59
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#1David J. Booth (UTS: University of Technology, Sydney)H-Index: 36
#2Giglia A. Beretta (UTS: University of Technology, Sydney)H-Index: 5
Last. Will F. Figueira (USYD: University of Sydney)H-Index: 22
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An 18-year database of coral reef fish expatriation poleward in South East Australia was used to estimate persistence of coal-reef fish recruits on temperate reefs. Surveys have identified over 150 coral-reef fish species recruiting to temperate reefs at latitudes of 340S (Sydney) and 60 species to 370S (Merimbula) with 20 and 5 species respectively overwintering in at least one year over the study duration. We developed indices of vulnerability of key species to drops in water temperatures, by ...
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Last. Inge Geurden (INRA: Institut national de la recherche agronomique)H-Index: 28
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Rationale Carbon and nitrogen stable isotope analyses of fish tissues are now commonly used in ecological studies but mostly require the sacrifice of the animal. Ethical considerations recommend the use of anesthetics for tissue sampling. This study examines how anesthetics affect stable isotope ratios of fish compared with other euthanasia methods. Methods Rainbow trout fry and juveniles were sacrificed using ice-freezing (as this common method used to kill fish does not affect natural isotopic...
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#1Adriana Vergés (UNSW: University of New South Wales)H-Index: 22
#2Christopher Doropoulos (UNSW: University of New South Wales)H-Index: 16
Last. Peter D. Steinberg (UNSW: University of New South Wales)H-Index: 64
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Abstract Some of the most profound effects of climate change on ecological communities are due to alterations in species interactions rather than direct physiological effects of changing environmental conditions. Empirical evidence of historical changes in species interactions within climate-impacted communities is, however, rare and difficult to obtain. Here, we demonstrate the recent disappearance of key habitat-forming kelp forests from a warming tropical–temperate transition zone in eastern ...
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Abstract We studied the trophic network architecture of the coral reef ecosystem of the New Caledonian lagoon. To encompass the main tropic levels, we assayed carbon and nitrogen stable isotopes in various organic matter sources, intermediate consumers (invertebrates and fish), and 19 species of predatory fish (total of 1229 samples). At each level, wide range of variations for δ 13 C and δ 15 N suggested multiple sources for the OM, and complex trophic relationships among the different organism...
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#1Brett T. van Poorten (Indian Ministry of Environment and Forests)H-Index: 8
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Abstract Individual growth rates are an important component of ecological processes and models. Understanding how and when growth rates may vary is necessary for predicting changes in size-specific rates like reproductive output, age at recruitment to fishing gear and even market prices. The von Bertalanffy growth function (VBGF) is the most common growth function used today. This model is integrated from a simple bioenergetics model; re-examining the link between von Bertalanffy growth and bioe...
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#1Gabriel E. Machovsky-Capuska (USYD: University of Sydney)H-Index: 11
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The dietary generalist–specialist distinction plays a pivotal role in theoretical and applied ecology, conservation, invasion biology, and evolution and yet the concept remains poorly characterised. Diets, which are commonly used to define niche breadth, are almost exclusively considered in terms of foods, with little regard for the mixtures of nutrients and other compounds they contain. We use nutritional geometry (NG) to integrate nutrition with food-level approaches to the dietary niche and i...
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#1Debashish Mazumder (ANSTO: Australian Nuclear Science and Technology Organisation)H-Index: 13
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Dams constitute a major threat to aquatic ecosystems world-wide by modifying habitat and impairing opportunities for many freshwater fish. Subsequently, there can be a loss in fish diversity and change in the species distributions and population structure that ultimately contribute to changes in trophic structure and ecosystem function. In this study, stable isotope analysis (SIA) was used to compare trophic interaction and niche space of five fish species residing upstream and downstream of a s...
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#1Alexander J. Basford (UNSW: University of New South Wales)H-Index: 1
#2David A. Feary (University of Nottingham)H-Index: 26
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A widely documented impact of ocean warming is the poleward shift in species’ distributions. This includes the global movement of tropical fishes into temperate rocky reefs. The ecological impacts of such range extensions are, however, largely unknown. We compared the feeding habits of herbivorous tropical surgeonfishes (Acanthuridae) to that of warm-temperate surgeonfishes near Sydney, Australia. The abundance of tropical surgeonfishes peaked during warmer months before they became locally exti...
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#1Joel C. Hoffman (EPA: United States Environmental Protection Agency)H-Index: 15
#2Michael E. Sierszen (EPA: United States Environmental Protection Agency)H-Index: 19
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Rationale Normalizing δ13C values of animal tissue for lipid content is necessary to accurately interpret food-web relationships from stable isotope analysis. To reduce the effort and expense associated with chemical extraction of lipids, various studies have tested arithmetic mass balance to mathematically normalize δ13C values for lipid content; however, the approach assumes that lipid content is related to the tissue C:N ratio. Methods We evaluated two commonly used models for estimating tiss...
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#1Hayden T. Schilling (UNSW: University of New South Wales)H-Index: 2
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#1Lara Parata (UNSW: University of New South Wales)
#2Shaun Nielsen (UNSW: University of New South Wales)H-Index: 16
Last. Adriana Vergés (UNSW: University of New South Wales)H-Index: 22
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Herbivorous fishes play important ecological roles in coral reefs by consuming algae that can otherwise outcompete corals, but we know little about the gut microbiota that facilitates this process. This study focussed on the gut microbiota of an ecologically important coral reef fish, the convict surgeonfish Acanthurus triostegus. We sought to understand how the microbiome of this species varies along its gastrointestinal tract and how it varies between juvenile and adult fish. Further, we exami...
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