Nutritional ecology of marine herbivorous fishes: ten yers on

Show simple item record Clements, Kendall en Raubenheimer, David en Choat, John en 2012-03-09T01:45:30Z en 2009 en
dc.identifier.citation FUNCT ECOL 23(1):79-92 Feb 2009 en
dc.identifier.issn 1365-2435 en
dc.identifier.uri en
dc.description.abstract 1. Marine herbivorous fishes are considered to be of critical importance in determining the biological structure of shallow reef environments, and by implication have key roles in carbon flux in reef ecosystems. Despite this, the nutritional processes that underpin these critical ecological roles have received comparatively little attention. 2. Here we give an overview of recent progress in the nutritional ecology of marine herbivorous fishes, and then examine two recent paradigms that we consider important in the development of the field: (i) the role of temperature in latitudinal gradients of diversity and abundance, and (ii) the impact of these fishes on coral reefs. Our aim is to illustrate how an integrative nutritional ecology approach can enrich insights gained from studies of fish herbivory, and to emphasize the distinctive differences between herbivory in marine and terrestrial systems. 3. We argue that much of the work on trophic biology in marine herbivorous fishes has focused on the ecological impacts of fishes on reefs, the deterrent properties of marine algae, and the morphological and mechanical aspects of ingestion. This has come at the expense of two of the elements necessary for an integrative understanding of feeding ecology, that is, food composition and the physiological processes involved in nutrient extraction and utilization. Together, these factors have hindered the development of the nutritional framework for analysing food resources, feeding patterns and evolutionary trends that has proved successful for terrestrial vertebrate herbivores. 4. The reef grazing and algal secondary metabolite paradigms, while both extremely productive, have failed to develop the clear predictive framework for diet choice required in broader contexts such as reef management and understanding the evolution of herbivory. The lack of a focus on nutritional factors has led to premature conclusions on the influence of temperature on algal digestion, both at the level of digestive processes and the biogeography of marine faunas. 5. Some marine herbivorous fishes appear to be bending the ‘rules’ of hindgut fermentation, especially with respect to temperature and fermentation substrates, and so the study of nutritional ecology in these animals has potential to generate novel insights for the field of vertebrate nutrition in general. en
dc.publisher British Ecological Society; The Authors en
dc.relation.ispartofseries Functional Ecology en
dc.rights Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. Details obtained from en
dc.rights.uri en
dc.title Nutritional ecology of marine herbivorous fishes: ten yers on en
dc.type Journal Article en
dc.identifier.doi 10.1111/j.1365-2435.2008.01524.x en
pubs.begin-page 79 en
pubs.volume 23 en
dc.rights.holder Copyright: British Ecological Society; The Authors en
pubs.end-page 92 en
dc.rights.accessrights en
pubs.subtype Article en
pubs.elements-id 95953 en Science en Biological Sciences en
pubs.record-created-at-source-date 2010-09-01 en

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