Ocean & Coastal Management (2017)
Throughout their range, marine mammals are vulnerable to incidental capture in fishing gear. Bycatch is a particularly important issue for cetaceans, which generally have lower potential rates of population growth…
Abundance and distribution of cetaceans in the Gulf of Alaska
Rone, Brenda K.; Zerbini, Alexandre N.; Douglas, Annie B.; Weller, David W.; Clapham, Phillip J.
Marine Biology (2017)
To effectively protect and manage marine mammals, contemporary information on their abundance and distribution is essential. Several factors influence present-day insight including the accessibility of the study area and the…
Return of harbor porpoises (Phocoena phocoena) to San Francisco Bay
Stern, S. Jonathan; Keener, William; Szczepaniak, Isidore D.; Webber, Marc A.
Aquatic Mammals (2017)
Harbor porpoises (Phocoena phocoena) were rarely seen in San Francisco Bay prior to 2008 despite numerous marine mammal search efforts beginning in the 1970s. The species inhabited the bay historically…
Habitat preferences among three top predators inhabiting a degraded ecosystem, the Black Sea
Sánchez-Cabanes, Alicia; Nimak-Wood, Maja; Harris, Nicola; de Stephanis, Renaud
Scientia Marina (2017)
This study investigated whether there is evidence of widespread niche partitioning based on environmental factors in the Black Sea and tested the hypothesis that physiographic factors may be employed as…
COSEWIC assessment and status report on the harbour porpoise (Pacific Ocean population) Phocoena phocoena vomerina in Canada
Hall, A.; Heise, K.
COSEWIC Status Reports (2017)
Wildlife Species Description and Significance The Pacific Harbour Porpoise (Phocoena phocoena vomerina) is the smallest cetacean in British Columbia (BC), ranging from 1.5 to 1.6 m and 45 to 60…
Habitat preference of the Yangtze finless porpoise in a minimally disturbed environment
Mei, Zhigang; Chen, Mao; Li, Yongtao; Huang, Shiang-Lin; Haung, Jie; Han, Yi; Zhu, Binting; Li, Chunsheng; Wang, Kexiong; Wang, Ding
Ecological Modelling (2017)
Analyses of animal species distribution in a neutral or minimally-interrupted habitat provide a baseline that is essential for assessment of population status, identification of key habitat, and conservation planning for…
Population- and growth-related differences in helminthic fauna of finless porpoises (Neophocaena asiaeorientalis) in five Japanese populations
Shiozaki, Akira; Amano, Masao
Journal of Veterinary Medical Science (2017)
A survey of helminths and ectoparasites, including epizoits, was conducted in narrow-ridged finless porpoises (Neophocaena asiaeorientalis) from Japanese five populations using dead stranded or incidentally caught animals. In total, 13…
Estimation of population size and trends for highly mobile species with dynamic spatial distributions
Boyd, Charlotte; Barlow, Jay; Becker, Elizabeth A.; Forney, Karin A.; Gerrodette, Tim; Moore, Jeffrey E.; Punt, André E.
Diversity and Distributions (2017)
Conventional spatial density models assume a constant relationship between densities and habitat covariates over some time period, typically a survey season. The estimated population size must change whenever total habitat…
Fishers’ knowledge as an information source to investigate bycatch of marine mammals in the South China Sea
Liu, M.; Lin, M.; Turvey, S. T.; Li, S.
Animal Conservation (2016)
Bycatch mortality is a significant driver of marine mammal population declines. However, there is little information available on patterns or magnitude of bycatch mortality in many heavily fished Asian marine…
Riding the tide: Use of a moving tidal-stream habitat by harbour porpoises
Benjamins, S.; Dale, A.; van Geel, N.; Wilson, B.
Marine Ecology Progress Series (2016)
Tidal-stream habitats present periodically fast-flowing, turbulent conditions. Evidence suggests that these conditions benefit top predators such as harbour porpoises Phocoena phocoena, presumably allowing them to optimise exploitation of prey resources.…