Canadian Journal of Zoology (2016)
The harbor porpoise (Phocoena phocoena (L., 1758)) used to be common in Puget Sound, Washington, but virtually disappeared from these waters by the 1970s. We conducted systematic aerial line-transect surveys…
Seventh Meeting of the Comité Internacional para la Recuperación de la Vaquita
CIRVA
(2016)
EXTINCTION IS IMMINENT CIRVA reviewed the 2015 population survey results, which showed that only about 60 vaquitas remained at the beginning of the emergency 2-year partial gillnet ban. CIRVA also…
ASCOBANS Recovery Plan for Baltic Harbour Porpoises – Jastarnia Plan (2016 Revision)
(2016)
This is the ASCOBANS species action plan for what is called Baltic harbour porpoise population primarily inhabiting the Baltic Proper. The population’s abundance has recently been estimated at only 497…
Echolocation detections and digital video surveys provide reliable estimates of the relative density of harbour porpoises
Williamson, Laura D.; Brookes, Kate L.; Scott, Beth E.; Graham, Isla M.; Bradbury, Gareth; Hammond, Philip S.; Thompson, Paul M.
Methods in Ecology and Evolution (2016)
1. Robust estimates of the density or abundance of cetaceans are required to support a wide range of ecological studies and inform management decisions. Considerable effort has been put into…
Noise mitigation during pile driving efficiently reduces disturbance of marine mammals
Nehls, Georg; Rose, Armin; Diederichs, Ansgar; Bellmann, Michael; Pehlke, Hendrik
Advances in Experimental Medicine and Biology (2016)
Acoustic monitoring of harbor porpoises (Phocoena phocoena L., 1758) indicated a strongly reduced disturbance by noise emitted by pile driving for offshore wind turbine foundations insulated by a big bubble…
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…
Contradictory genetic make-up of Dutch harbour porpoises: Response to van der Plas-Duivesteijn et al.
Kopps, Anna M.; Palsbøll, Per J.
Journal of Sea Research (2016)
(...) Recently, van der Plas-Duivesteijn et al. (2015) presented a genetic assessment of harbour porpoises, Phocoena phocoena, along the Dutch coast, which concluded that all analysed Dutch harbour porpoises are…
Characterization, optimization, and validation of environmental DNA (eDNA) markers to detect an endangered aquatic mammal
Ma, Hongjuan; Stewart, Kathryn; Lougheed, Stephen; Zheng, Jinsong; Wang, Yuxiang; Zhao, Jianfu
Conservation Genetics Resources (2016)
Environmental DNA (eDNA) represents a sensitive and efficient method for noninvasively sampling rare or otherwise hard to monitor taxa, potentially making it a powerful tool for conservation management. Still, this…
Response to Kopps & Palsboll
van der Plas-Duivesteijn, Suzanne; Kraaijeveld, Ken
Journal of Sea Research (2016)
(...) Kopps and Palsboll conclude by implying that conservation research should somehow be held to higher standards of rigor than more basic academic endeavors, because it has ‘direct impact on…
Diurnal variation in harbour porpoise detection – Potential implications for management
Williamson, L. D.; Brookes, K. L.; Scott, B. E.; Graham, I. M.; Thompson, P. M.
Marine Ecology Progress Series (2017)
Robust information on animal distributions and foraging behaviour is required to target management and conservation measures for protected species and populations. Visual survey data are commonly used to model these…