Multiple-colony winter habitat use by murres Uria spp. in the Northwest Atlantic Ocean: implications for marine risk assessment

2013 ◽  
Vol 472 ◽  
pp. 287-303 ◽  
Author(s):  
LA McFarlane Tranquilla ◽  
WA Montevecchi ◽  
A Hedd ◽  
DA Fifield ◽  
CM Burke ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Atlantic Ocean ◽  
Habitat Use ◽  
Winter Habitat ◽  
Northwest Atlantic

scholarly journals Habitat selection by hooded seals (Cystophora cristata) in the Northwest Atlantic Ocean

2012 ◽  
Vol 70 (1) ◽  
pp. 173-185 ◽  
Author(s):  
Julie M. Andersen ◽  
Yolanda F. Wiersma ◽  
Garry B. Stenson ◽  
Mike O. Hammill ◽  
Aqqalu Rosing-Asvid ◽  
...  
Keyword(s):  
Habitat Selection ◽  
Atlantic Ocean ◽  
Habitat Use ◽  
First Passage Time ◽  
Additive Model ◽  
Adult Males ◽  
Northwest Atlantic ◽  
Search Effort ◽  
Cystophora Cristata ◽  
Adult Females

Abstract Andersen, J. M., Wiersma, Y. F., Stenson, G. B., Hammill, M. O., Rosing-Asvid, A., and Skern-Maurizen, M. 2013. Habitat selection by hooded seals (Cystophora cristata) in the Northwest Atlantic Ocean. – ICES Journal of Marine Science, 70:173–185. We examined annual habitat use for 65 hooded seals (32 adult females, 17 adult males, and 16 juveniles) equipped with satellite relay data loggers (SRDLs) in spring or summer during five field seasons (2004–2008). A combined approach using first passage time (FPT) analysis and a generalized additive model (GAM) was applied to test for habitat selection, with a focus on environmental parameters of depth, slope, ice, sea surface temperature (SST), and chlorophyll. The models were run on adult males, adult females, and juveniles separately, and the results identified SST, depth, and chlorophyll as the most important factors influencing habitat selection across all categories. Furthermore, males and females preferred similar habitat conditions, but were separated geographically, and by depth, at various times of the year. Males appeared to be more localized in their habitat use patterns, focusing their search effort in areas of complex seabed relief such as Baffin Bay, Davis Strait, and the Flemish cap, while females concentrated their search effort along shelf areas (e.g. the Labrador shelf). These findings support our hypothesis that hooded seals prefer areas where topography and oceanographic processes create favourable foraging conditions.

DETAILED RECORDS OF THE ICE-RAFTED DETRITUS IN SEDIMENTS FROM THE ORPHAN KNOLL, NORTHWEST ATLANTIC OCEAN

2020 ◽  
Author(s):  
Alisha L. Guglielmi ◽  
◽  
James L. Cullen ◽  
Annette Lott ◽  
Jerry F. McManus
Keyword(s):  
Atlantic Ocean ◽  
Northwest Atlantic

Population structure and ontogenetic habitat use of Micropogonias furnieri in the Southwestern Atlantic Ocean inferred by otolith chemistry

2021 ◽  
Vol 240 ◽  
pp. 105953
Author(s):  
Esteban Avigliano ◽  
Nadia M. Alves ◽  
M. Rita Rico ◽  
Claudio O. Ruarte ◽  
Luciana D’Atri ◽  
...  
Keyword(s):  
Population Structure ◽  
Atlantic Ocean ◽  
Habitat Use ◽  
Otolith Chemistry ◽  
Southwestern Atlantic ◽  
Southwestern Atlantic Ocean ◽  
Micropogonias Furnieri

scholarly journals Late-winter habitat use by the Fisher, Pekania pennanti (Erxleben, 1777), in the Boreal Plains Ecozone of northwestern Saskatchewan, Canada

2014 ◽  
Vol 128 (3) ◽  
pp. 272 ◽  
Author(s):  
Gilbert Proulx
Keyword(s):  
Habitat Use ◽  
Deciduous Forest ◽  
Late Winter ◽  
Larix Laricina ◽  
Forest Stands ◽  
Habitat Types ◽  
Winter Habitat ◽  
Boreal Plains ◽  
Pekania Pennanti ◽  
Crown Closure

Late-winter habitat use by the Fisher, Pekania pennanti (Erxleben, 1777) in northwestern Saskatchewan was assessed in February 2009, 2011, and 2012. A total of 78 Fisher tracks were recorded over 60 300 m of snowshoe surveys. Fisher tracks were significantly less frequent than expected in Tamarack (Larix laricina [Du Roi] K. Koch) stands with > 40% crown closure and mainly 0–10 m trees (P < 0.05) and in open areas. Fishers used other habitat types equal to availability, including muskeg and coniferous, mixed, and deciduous forest stands. Maintaining mosaics of forest stands of different seral stages interspersed with muskeg would meet the late-winter habitat needs of Fishers in the Boreal Plains Ecozone of northwestern Saskatchewan.

Dissolved chromium in the northwest Atlantic Ocean

1981 ◽  
Vol 53 (3) ◽  
pp. 427-433 ◽  
Author(s):  
J.A. Campbell ◽  
P.A. Yeats
Keyword(s):  
Atlantic Ocean ◽  
Northwest Atlantic

Upper mantle shear structure beneath the northwest Atlantic Ocean

1984 ◽  
Vol 89 (B13) ◽  
pp. 11465-11475 ◽  
Author(s):  
Stephen P. Grand ◽  
Donald V. Helmberger
Keyword(s):  
Atlantic Ocean ◽  
Upper Mantle ◽  
Northwest Atlantic ◽  
Shear Structure
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