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Near-Infrared Reflectance Spectroscopy is a Rapid, Cost-Effective Predictor of Seagrass Nutrients

Lawler, I; Aragones, Lemnuel; Berding, Nils; Marsh, Helene; Foley, William

Description

Near-infrared reflectance spectroscopy was used to analyze nutrient composition of tropical and subtropical seagrasses in Queensland, Australia, as part of a broader study of impacts of grazing by dugongs on seagrass. Seagrass samples of 10 species were collected, transported to the laboratory, and separated into leaf and root/rhizome fractions. They were dried, ground, and near-infrared spectra (400-2500 nm) were collected. We used partial least-squares regression to develop calibration...[Show more]

dc.contributor.authorLawler, I
dc.contributor.authorAragones, Lemnuel
dc.contributor.authorBerding, Nils
dc.contributor.authorMarsh, Helene
dc.contributor.authorFoley, William
dc.date.accessioned2015-12-10T22:59:29Z
dc.identifier.issn0098-0331
dc.identifier.urihttp://hdl.handle.net/1885/61108
dc.description.abstractNear-infrared reflectance spectroscopy was used to analyze nutrient composition of tropical and subtropical seagrasses in Queensland, Australia, as part of a broader study of impacts of grazing by dugongs on seagrass. Seagrass samples of 10 species were collected, transported to the laboratory, and separated into leaf and root/rhizome fractions. They were dried, ground, and near-infrared spectra (400-2500 nm) were collected. We used partial least-squares regression to develop calibration equations relating spectral data to standard compositional analyses performed in the laboratory. These compositional analyses focused on attributes believed to be important determinants of nutritional quality of marine vertebrate herbivores (nitrogen, organic matter, neutral detergent fiber, acid detergent fiber, lignin, neutral starch, water-soluble carbohydrates, and in vitro dry matter digestibility). Calibration equations for each attribute were developed separately for (1) roots/rhizomes and (2) leaves, irrespective of plant species. An equation that combined both plant parts was equally robust. These studies demonstrated the utility of near-infrared spectroscopy in providing rapid and cost-effective analysis of marine plants, which, in turn, permits a rigorous statistical approach to be applied to studies of foraging by marine herbivores.
dc.publisherPlenum Publishing Corporation
dc.sourceJournal of Chemical Ecology
dc.subjectKeywords: grazing; infrared spectroscopy; marine mammal; nutritive value; seagrass; calibration; chemistry; conference paper; cost benefit analysis; economics; methodology; near infrared spectroscopy; Poaceae; regression analysis; Calibration; Cost-Benefit Analysis Ecological methods; Grazing; Marine herbivores; Near-infrared spectroscopy; Nutrient analyses; Nutritional quality; Seagrass
dc.titleNear-Infrared Reflectance Spectroscopy is a Rapid, Cost-Effective Predictor of Seagrass Nutrients
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume32
dc.date.issued2006
local.identifier.absfor060205 - Marine and Estuarine Ecology (incl. Marine Ichthyology)
local.identifier.ariespublicationu9511635xPUB587
local.type.statusPublished Version
local.contributor.affiliationLawler, I, James Cook University
local.contributor.affiliationAragones, Lemnuel, James Cook University
local.contributor.affiliationBerding, Nils, Bureau of Sugar Experiment Stations
local.contributor.affiliationMarsh, Helene, James Cook University
local.contributor.affiliationFoley, William, College of Medicine, Biology and Environment, ANU
local.description.embargo2037-12-31
local.bibliographicCitation.startpage1353
local.bibliographicCitation.lastpage1365
local.identifier.doi10.1007/s10886-006-9088-x
dc.date.updated2015-12-10T08:13:24Z
local.identifier.scopusID2-s2.0-33745124045
CollectionsANU Research Publications

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