FN Archimer Export Format
PT J
TI Alongside but separate: Sympatric baleen whales choose different habitat conditions in São Miguel, Azores
BT 
AF González García, Laura
   Pierce, Graham J.
   Autret, Emmanuelle
   Torres-Palenzuela, Jesús M.
AS 1:1,2,3;2:4,5,6;3:7;4:2;
FF 1:;2:;3:PDG-ODE-LOPS-SIAM;4:;
C1 Azorean Biodiversity Group (University of the Azores), Centre for Ecology, Evolution and Environmental Changes (CE3C). Rua Mãe de Deus, 9500-321, Ponta Delgada, Portugal
   Remote Sensing and GIS Laboratory, Department of Applied Physics, Sciences Faculty, University of Vigo, Campus Lagoas Marcosende, 36310, Vigo, Spain
   Futurismo Azores Adventures, Portas do Mar, loja 24-26, Ponta Delgada, Azores, Portugal
   Instituto de Investigaciones Marinas (CSIC), Eduardo Cabello 6, 36208, Vigo, Spain
   School of Biological Sciences, University of Aberdeen, Tillydrone Avenue, Aberdeen AB24 2TZ, UK
   CESAM, Universidade de Aveiro, 3810-193, Aveiro, Portugal
   Ifremer, Univ. Brest, CNRS, IRD, Laboratoire d'Oceanographie Physique et Spatiale (LOPS), IUEM, Brest, France
C2 UNIV AZORES, PORTUGAL
   UNIV VIGO, SPAIN
   FUTURISMO AZORES ADVENTURES, PORTUGAL
   CSIC, SPAIN
   UNIV ABERDEEN, UK
   UNIV AVEIRO, PORTUGAL
   IFREMER, FRANCE
SI BREST
SE PDG-ODE-LOPS-SIAM
UM LOPS
IN WOS Ifremer UMR
   copubli-europe
IF 2.4
TC 2
UR https://archimer.ifremer.fr/doc/00766/87827/93385.pdf
   https://archimer.ifremer.fr/doc/00766/87827/93386.docx
LA English
DT Article
DE ;Marine mammals;Habitat selection;Modelling;Azores;GAMs;Baleen whales
AB Fin whales and sei whales are two migratory baleen whale species sighted every year across the waters of the Azores. Improved understanding of the ecological niche and habitat requirements of these baleen whales is needed to identify persistent or predictable oceanographic events that may set the time of their migration, as well as local or ephemeral oceanographic features that may aggregate their prey in a particular area. In dynamic environments such as the open ocean, mesoscale and submesoscale features can become decisive to determine the distributions of highly mobile species such as baleen whales. In this study, we analyse the habitat preferences of fin whales and sei whales around São Miguel Island (Azores) using environmental variables at different temporal and spatial scales. For both species, model results showed a clear influence of variables linked with primary production and therefore, prey availability; as well as a noticeable preference for oceanographically dynamic areas which directly affect distribution and aggregation of prey. Those environmental choices may indicate different levels of foraging habitat use for both species. Differences were found between the species, highlighting preferences for colder waters in fin whales and areas with stronger sea surface temperature gradients in sei whales. Model results obtained for fin whales were similar with those previously published for blue whales, suggesting that both species make similar use of the waters around São Miguel, often foraging during the migration across these waters. Results for sei whale, however, emphasize dynamic variables, indicating that travelling may prevail over feeding behaviour during their migration by the Azores. 
PY 2022
PD JUL
SO Deep-sea Research Part I-oceanographic Research Papers
SN 0967-0637
PU Elsevier BV
VL 184
UT 000793827700001
DI 10.1016/j.dsr.2022.103766
ID 87827
ER

EF