Spatial ecology, biotelemetry, ecological modelling, marine mammals, sea turtles, marine fish
EDUCATION
2008 - PhD in Biology. Department of Arctic and Marine Biology, University of Tromsø, Norway.
2000 - Master in Marine and Fisheries Science. University of Aberdeen, UK.
1997 - Bachelor (Licenciatura) in Marine Biology and Fisheries, University of Algarve, Portugal.
PUBLICATIONS
Publication metrics:
H-index (Google Scholar): 24; Citations (Google Scholar): 1450+
https://scholar.google.no/citations?user=uQDFZcEAAAAJ&hl=en
Selected publications:
Freitas, C., Gundersen, K., Lindblom, L., Biuw, M., Haug, T. (2023). Nutrient concentrations in minke whale faeces and the potential impact on dissolved nutrient pools off Svalbard, Norway. Progress in Oceanography 210:102927.
Freitas, C., Freitas, M., Andrzejaczek, S., Dale, J.J., Whippen, W., and Block, B.A. (2022). First insights into the movements and vertical habitat use of blue marlin (Makaira nigricans) in the eastern North Atlantic. Animal Biotelemetry 10:12.
Villegas-Ríos, D., Freitas, C., Moland, E., Olsen, E.M. (2022). Eco-evolutionary dynamics of Atlantic cod spatial behavior maintained after the implementation of a marine reserve. Evolutionary Applications 15:1846-1858.
Freitas, C., Villegas-Ríos, D., Moland, E. & Olsen, E.M. (2021) Sea temperature effects on depth use and habitat selection in a marine fish community. Journal of Animal Ecology 90:1787-1800.
Villegas-Ríos, D., Freitas, C., Moland, E., Thorbjørnsen, S. H., and Olsen, E. M. (2020). Inferring individual fate from aquatic acoustic telemetry data. Methods in Ecology and Evolution 11:1186-1198.
Sørlie, M., Nilssen, K. T., Bjørge, A., and Freitas, C. (2020). Diet composition and biomass consumption of harbour seals in Telemark and Aust-Agder, Norwegian Skagerrak. Marine Biology Research 16:299-310.
Norderhaug, K. M., Filbee-Dexter, K., Freitas, C., S. R. Birkely, L. Christensen, I. Mellerud, J. Thormar, T. van Son, F. Moy, M. Vázquez Alonso, and H. Steen. 2020. Ecosystem-level effects of large-scale disturbance in kelp forests. Marine Ecology Progress Series 656:163-180.
Freitas, C., Caldeira, R., and Dellinger, T. (2019). Surface behavior of pelagic juvenile loggerhead sea turtles in the eastern North Atlantic. Journal of Experimental Marine Biology and Ecology 510:73-80.
Barth, J. M. I., Villegas-Ríos, D., Freitas, C., Moland, E., Star, B., André, C., Knutsen, H., Bradbury, I., Dierking, J., Petereit, C., Righton, D., Metcalfe, J., Jakobsen, K. S., Olsen, E. M., and Jentoft, S. (2019). Disentangling structural genomic and behavioural barriers in a sea of connectivity. Molecular Ecology 28:1394-1411.
Hamilton, C. D., Lydersen, C., Fedak, M. A., Freitas, C., Hindell, M. A., and Kovacs, K. M. (2019). Behavioural ontogeny of bearded seals Erignathus barbatus through the first year of life. Marine Ecology Progress Series 627:179-194.
Freitas, C., Caldeira, R., Reis, J., and Dellinger, T. (2018). Foraging behavior of juvenile loggerhead sea turtles in the open ocean: from Lévy exploration to area-restricted search. Marine Ecology Progress Series 595:203-215.
Villegas-Ríos, D., Réale, D., Freitas, C., Moland, E., and Olsen, E. M. (2018). Personalities influence spatial responses to environmental fluctuations in wild fish. Journal of Animal Ecology 87:1309-1319.
Villegas-Ríos, D., Réale, D., Freitas, C., Moland, E., and Olsen, E. M. (2017). Individual level consistency and correlations of fish spatial behaviour assessed from aquatic animal telemetry. Animal Behaviour 124:83-94.
Freitas, C., Olsen, E. M., Knutsen, H., Albretsen, J., and Moland, E. (2016). Temperature-associated habitat selection in a cold-water marine fish. Journal of Animal Ecology 85:628–637.
Freitas, C., Olsen, E. M., Moland, E., Ciannelli, L., and Knutsen, H. (2015). Behavioral responses of Atlantic cod to sea temperature changes. Ecology and Evolution 5:2070–2083.
Lydersen, C., Freitas, C., Wiig, Ø., Bachmann, L., Heide-Jørgensen, M. P., Swift, R., and Kovacs, K. M. (2012). Lost Highway Not Forgotten: Satellite Tracking of a Bowhead Whale (Balaena mysticetus) from the Critically Endangered Spitsbergen Stock. Arctic 65:76-86.
Freitas, C., Kovacs, K. M., Andersen, M., Aars, J., Sandven, S., Skern-Mauritzen, M., Pavlova, O., and Lydersen, C. (2012). Importance of fast ice and glacier fronts for female polar bears and their cubs during spring in Svalbard, Norway. Marine Ecology Progress Series 447:289-304.
McCarthy, A. L., Heppell, S., Royer, F., Freitas, C., and Dellinger, T. (2010). Identification of likely foraging habitat of pelagic loggerhead sea turtles (Caretta caretta) in the North Atlantic through analysis of telemetry track sinuosity. Progress in Oceanography 86:224-231.
Freitas, C., Kovacs, K. M., Ims, R. A., Fedak, M. A., and Lydersen, C. (2009). Deep into the ice: over-wintering and habitat selection in male Atlantic walruses. Marine Ecology Progress Series 375:247-261.
Freitas, C., Kovacs, K. M., Ims, R. A., Fedak, M. A., and Lydersen, C. (2008). Ringed seal post-moulting movement tactics and habitat selection. Oecologia 155:193-204.
Freitas, C., Kovacs, K. M., Ims, R. A., and Lydersen, C. (2008). Predicting habitat use by ringed seals (Phoca hispida) in a warming Arctic. Ecological Modelling 217:19-32.
Freitas, C., Kovacs, K. M., Lydersen, C., and Ims, R. A. (2008). A novel method for quantifying habitat selection and predicting habitat use. Journal of Applied Ecology 45:1213-1220.
Freitas, C., Lydersen, C., Fedak, M. A., and Kovacs, K. M. (2008). A simple new algorithm to filter marine mammal Argos locations. Marine Mammal Science 24:315-325.
Freitas, C., Dellinger, T., and Reiner, F. (1998). First record of Atlantic spotted dolphins, Stenella frontalis G. Cuvier, 1829 (Cetacea: Delphinidae) from the Archipelago of Madeira. Bocagiana 190:1-5.
Books
Freitas, L., Antunes, R., Freitas, C., and Pires, R. (2002). Mamíferos Marinhos do Arquipélago da Madeira. Secretaria Regional do Ambiente e dos Recursos Naturais, Funchal.[Title in English: Marine Mammals of Madeira Archipelago]
Freitas, C., and Dellinger, T. (1999). Tartarugas Marinhas na Madeira. Projecto Tartarugas Marinhas, Universidade da Madeira, Funchal.[Title in English: Sea turtles of Madeira]
Software
Freitas, C. R library argosfilter, available at [http://cran.r-project.org/]. The library enables to filter marine vertebrate Argos locations, using the algorithm described in Freitas et al (2008) Marine Mammal Science, 24(2): 315-325.