Biology Letters (2007)
Sandeels are known to be negatively affected by climate change in a number of ways. This study investigated whether these changes are affecting the harbour porpoise (Phocoena phocoena), a species…
Distribution and abundance of marine mammals in the coastal waters of British Columbia, Canada
Williams, R.; Thomas, L.
Journal of Cetacean Research and Management (2007)
Information on animal distribution and abundance is integral to wildlife conservation and management. However abundance estimates have not been available for many cetacean species inhabiting the coastal waters of Canada’s…
Saving the Vaquita: Immediate action, not more data
JARAMILLO-LEGORRETA, ARMANDO; ROJAS-BRACHO, LORENZO; BROWNELL, ROBERT L.; READ, ANDREW J.; REEVES, RANDALL R.; RALLS, KATHERINE; TAYLOR, BARBARA L.
Conservation Biology (2007)
The recent likely extinction of the baiji (Chinese river dolphin [Lipotes vexillifer]) (Turvey et al. 2007) makes the vaquita (Gulf of California porpoise [Phocoena sinus]) the most endangered cetacean. The…
Stomach contents of bycaught harbour porpoises (Phocoena phocoena) from the Marmara sea
Tonay, A. M.; Dede, A.; Öztürk, A. A.
Rapports et Procès-Verbaux des Réunions de la Commission Internationale pour l'Exploration Scientifique de la Mer Méditerranée (2007)
The study was based on stomach content of four harbour porpoises bycaught in the coastal fishery in 2004 and 2006, on the Marmara Sea coast. Three fish species, horse mackerel…
Increased blood interleukin-10 mRNA levels in diseased free-ranging harbor porpoises (Phocoena phocoena)
Beineke, Andreas; Siebert, Ursula; Müller, Gundi; Baumgärtner, Wolfgang
Veterinary Immunology and Immunopathology (2007)
Harbor porpoises from the North and Baltic Seas exhibit a higher incidence of bacterial infections compared to whales from less polluted arctic waters. Toxicological analysis revealed an association between elevated…
Genetic drift vs. natural selection in a long-term small isolated population: major histocompatibility complex class II variation in the Gulf of California endemic porpoise (Phocoena sinus)
MUNGUIA-VEGA, ADRIAN; ESQUER-GARRIGOS, YARELI; ROJAS-BRACHO, LORENZO; VAZQUEZ-JUAREZ, RICARDO; CASTRO-PRIETO, AINES; FLORES-RAMIREZ, SERGIO
Molecular Ecology (2007)
Although many studies confirm long-term small isolated populations (e.g. island endemics) commonly sustain low neutral genetic variation as a result of genetic drift, it is less clear how selection on…
A preliminary overview of skin and skeletal diseases and traumata in small cetaceans from South American waters
Van Bressem, M.-F.; Reyes, J. C.; Félix, F.; Echegaray, M.; Siciliano, S.; Di Beneditto, A. P.; Flach, L.; Viddi, F.; Avila, I. C.; Herrera, J. C.; Tobón, I. C.; Bolaños-Jiménez, J.; Moreno, I. B.; Ott, P. H.; Sanino, G. P.; Castineira, E.; Montes, D.; Crespo, E.; Flores, P. A. C.; Haase, B.; Souza, S. M. F. M.; Laeta, M.; Fragoso, A. B.
Lat. Am. J. Aquat. Mamm. (2007)
We succinctly review and document new cases of diseases of the skin and the skeletal system and external traumata in cetaceans from Ecuador, Colombia, Peru, Chile, Argentina, Uruguay, Brazil, and…
Predation by killer whales (Orcinus orca) and the evolution of whistle loss and narrow-band high frequency clicks in odontocetes
Morisaka, T.; Connor, R. C.
Journal of Evolutionary Biology (2007)
A disparate selection of toothed whales (Odontoceti) share striking features of their acoustic repertoires including the absence of whistles and high frequency but weak (low peak-to-peak source level) clicks that…
Reduction of harbour porpoise (Phocoena phocoena) bycatch by iron-oxide gillnets
Larsen, F.; Ritzau Eigaard, O.; Tougaard, J.
Fisheries Research (2007)
Reduction of harbour porpoise bycatch by use of high-density iron-oxide (IO) gillnets was tested in sea trials in the Danish North Sea bottom set gillnet fishery in September–October 2000. The…
Mate guarding in male Dall’s porpoises (Phocoenoides dalli)
Willis, Pamela M.; Dill, Lawrence M.
Ethology (2007)
Mate guarding, whereby a male closely attends and defends a fertile female from extra-pair matings, is one mating tactic males of many species use to protect their paternity. Although female…