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dc.contributor.authorBooth, Cormac Graham
dc.contributor.authorGuilpin, Marie
dc.contributor.authorDarias-O'Hara, Aimee-Kate
dc.contributor.authorRansijn, Janneke
dc.contributor.authorRyder, Megan
dc.contributor.authorRosen, David
dc.contributor.authorPirotta, Enrico
dc.contributor.authorSmout, Sophie Caroline
dc.contributor.authorMcHuron, Elizabeth
dc.contributor.authorNabe-Nielsen, Jacob
dc.contributor.authorCosta, Daniel
dc.identifier.citationBooth , C G , Guilpin , M , Darias-O'Hara , A-K , Ransijn , J , Ryder , M , Rosen , D , Pirotta , E , Smout , S C , McHuron , E , Nabe-Nielsen , J & Costa , D 2023 , ' Estimating energetic intake for marine mammal bioenergetic models ' , Conservation Physiology , vol. 11 , no. 1 , coac083 .
dc.descriptionFunding: This work was primarily funded under an award from Office of Naval Research: N000142012392, and with support from the Marine Mammal Commission project: “A priority setting exercise to identify key unanswered questions in marine mammal bioenergetics”. Funding from the Joint Nature Conservation Committee supported fish energy analyses - award C180241-1285.en
dc.description.abstractBioenergetics is the study of how animals achieve energetic balance. Energetic balance results from the energetic expenditure of an individual and the energy they extract from their environment. Ingested energy depends on several extrinsic (e.g prey species, nutritional value and composition, prey density and availability) and intrinsic factors (e.g. foraging effort, success at catching prey, digestive processes and associated energy losses, and digestive capacity). While the focus in bioenergetic modelling is often on the energetic costs an animal incurs, the robust estimation of an individual’s energy intake is equally critical for producing meaningful predictions. Here, we review the components and processes that affect energy intake from ingested gross energy to biologically useful net energy (NE). The current state of knowledge of each parameter is reviewed, shedding light on research gaps to advance this field. The review highlighted that the foraging behaviour of many marine mammals is relatively well studied via biologging tags, with estimates of success rate typically assumed for most species. However, actual prey capture success rates are often only assumed, although we note studies that provide approaches for its estimation using current techniques. A comprehensive collation of the nutritional content of marine mammal prey species revealed a robust foundation from which prey quality (comprising prey species, size and energy density) can be assessed, though data remain unavailable for many prey species. Empirical information on various energy losses following ingestion of prey was unbalanced among marine mammal species, with considerably more literature available for pinnipeds. An increased understanding and accurate estimate of each of the components that comprise a species NE intake are an integral part of bioenergetics. Such models provide a key tool to investigate the effects of disturbance on marine mammals at an individual and population level and to support effective conservation and management.
dc.relation.ispartofConservation Physiologyen
dc.subjectMarine mammalsen
dc.subjectEnergy intakeen
dc.subjectSDG 14 - Life Below Wateren
dc.titleEstimating energetic intake for marine mammal bioenergetic modelsen
dc.typeJournal itemen
dc.contributor.institutionUniversity of St Andrews. SMRU Consultingen
dc.contributor.institutionUniversity of St Andrews. Sea Mammal Research Uniten
dc.contributor.institutionUniversity of St Andrews. School of Biologyen
dc.contributor.institutionUniversity of St Andrews. Coastal Resources Management Groupen
dc.contributor.institutionUniversity of St Andrews. Scottish Oceans Instituteen
dc.contributor.institutionUniversity of St Andrews. Centre for Research into Ecological & Environmental Modellingen
dc.description.statusPeer revieweden

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