GEOSCAN, résultats de la recherche


TitreBay-scale habitat mapping of American lobster (Homarus americanus)
TéléchargerTéléchargement (publication entière)
LicenceVeuillez noter que la Licence du gouvernement ouvert - Canada remplace toutes les licences antérieures.
AuteurMcKee, A; Grant, J
SourceProgram and abstracts: 2017 GeoHab Conference, Dartmouth, Nova Scotia, Canada; par Todd, B J; Brown, C J; Lacharité, M; Gazzola, V; McCormack, E; Commission géologique du Canada, Dossier public 8295, 2017 p. 83, (Accès ouvert)
LiensGeoHab 2017
ÉditeurRessources naturelles Canada
Réunion2017 GeoHab: Marine Geological and Biological Habitat Mapping; Dartmouth, NS; CA; mai 1-4, 2017
Documentdossier public
Mediaen ligne; numérique
Référence reliéeCette publication est contenue dans Todd, B J; Brown, C J; Lacharité, M; Gazzola, V; McCormack, E; (2017). Program and abstracts: 2017 GeoHab Conference, Dartmouth, Nova Scotia, Canada, Commission géologique du Canada, Dossier public 8295
Sujetstechniques de cartographie; océanographie; milieux marins; études côtières; conservation; organismes marins; écologie marine; gestion des ressources; peuplements biologiques; etudes de l'environnement; écosystèmes; benthos; planification; interprétations géophysiques; levés acoustiques marins; levés au sonar; photographie; biologie; système d'information géographique; pêcheries; gestion des pêches; aquaculture; géologie marine; géologie des dépôts meubles/géomorphologie; géologie de l'environnement; géophysique
ProgrammeGéoscience en mer, Géoscience de la gestion des océans
Diffusé2017 09 26
Résumé(disponible en anglais seulement)
Bay-scale habitat maps for benthic organisms, especially those of economically important species, are important for the comprehensive development of Marine Spatial Planning (MSP) initiatives. However, few such maps of that scale exist for the American lobster (Homarus americanus) in Canada's Maritime provinces. There are several coastal activities considered by MSP which occur at scales of less than 1 km (e.g. aquaculture, etc.), but which have limited spatial placement options because of the broadly binned or patchy lobster habitat data available.
Therefore, the objective of this project is to develop a standard method of bay-scale lobster habitat mapping specifically for the purposes of adding scientific GIS layers to the MSP process of finfish aquaculture lease placement. Two bays in Nova Scotia and New Brunswick have been surveyed and mapped using acoustic data (backscatter from a single-beam echosounding system), ground-truth video, and various forms of lobster presence data. Through different procedures, the acoustic data have been split into substrate category bins and interpolated between tracks, then compared to the ground-truth video to create error matrices and provide estimates of accuracy. The accuracy of the maps created through these differing procedures has been evaluated and the early results of this work will discussed.