Using drifting passive echolocation loggers to study harbour porpoises in tidal-stream habitats
Endangered Species Research, 2013 Moored passive acoustic detectors (e.g. C-PODs) are widely used to study harbour porpoise Phocoena phocoena distribution and relative abundance, but their use in tidal-stream habitats is complicated by the need for retrievable flow-resistant seabed ...
B Wilson, S Benjamins, J Elliott
doaj +1 more source
Synthetic communication signals influence wild harbour porpoise (Phocoena phocoena) behaviour [PDF]
, 2015 We used our novel and programmable Porpoise Alarm (PAL, patd.) to synthesize life-like, electronic harbour porpoise communication signals based on those described for captive animals.
Conrad, Matthias +3 more
core +1 more source
Fatty Acid Composition in Blubber, Liver, and Muscle of Marine Mammals in the Southern Baltic Sea
Animals, 2020 To date, only limited results on the fatty composition in different tissues of the top predators in the Baltic Sea are available. In the current study, tissue samples of blubber, skeletal muscle, and liver from 8 harbour porpoise (Phocoena phocoena) and ...
Dirk Dannenberger +5 more
doaj +1 more source
Long-term feeding ecology and habitat use in harbour porpoises from Scandinavian waters inferred from trace elements and stable isotopes [PDF]
, 2007 peer reviewedBACKGROUND: We investigated the feeding ecology and habitat use of 32 harbour porpoises by-caught in 4 localities along the Scandinavian coast from the North Sea to the Barents Sea using time-integrative markers: stable isotopes (delta13C ...
Fontaine, Michael +6 more
core +1 more source
Fatal disseminated Toxoplasma gondii infection in a captive harbour porpoise (Phocoena phocoena) [PDF]
, 2015 A 7-year-old female harbour porpoise (Phocoena phocoena), born and held in captivity, suffered from reduced consciousness, imprecise and circling swimming movements and long phases of immobility over a period of 3 weeks.
Herder, V +8 more
core +2 more sources
Intraspecific variation of cochlear morphology in bowhead and beluga whales
The Anatomical Record, EarlyView.Abstract The bony labyrinth of the petrosal bone, a distinctive feature of mammal skulls, is often identified in micro‐computed tomography imaging to infer species' physiological and ecological traits. When done as part of a comparative study, one individual specimen is normally considered representative of a species, and intraspecific variation is ...
John Peacock, J. G. M. Thewissen
wiley +1 more source
Frontiers in Marine ScienceIntroductionIn 2021, a continuous acoustic monitoring programme was initiated in the Baltic Sea of Schleswig-Holstein to determine the occurrence and seasonal distribution of harbour porpoises.
Joseph G. Schnitzler +6 more
doaj +1 more source
Are white-beaked dolphins Lagenorhynchus albirostris food specialst? Their diet in the southern North Sea [PDF]
, 2010 The white-beaked dolphin Lagenorhynchus albirostris is the most numerous cetacean after the harbour porpoise Phocoena phocoena in the North Sea, including Dutch coastal waters.
Jansen, O.E. +3 more
core +2 more sources
Oikos, EarlyView.Competition theory suggests that interspecific prey competition can result in changes to the dietary niche, but obtaining timeseries of data from sympatric species experiencing temporal variation in competition is challenging. Scotland is an important area for two species of seals, but over the past 20 years, populations of harbour seals Phoca vitulina
Izzy Langley +7 more
wiley +1 more source
Bycatch as a potential threat to harbour porpoises (Phocoena phocoena) in Polish Baltic waters
NAMMCO Scientific Publications, 2003 Sixty-two verified reports obtained in the years 1990-1999 on the bycatch, strandings and sightings of harbour porpoises in the Polish Baltic were analysed in this study. In relative terms the highest number of reports (22) was noted in Puck Bay.
Krzysztof E Skóra, Iwona Kuklik
doaj +1 more source