Clicking in a killer whale habitat: narrow-band, high-frequency biosonar clicks of harbour porpoise (Phocoena phocoena) and Dall's porpoise (Phocoenoides dalli). [PDF]
PLoS ONE, 2013 Odontocetes produce a range of different echolocation clicks but four groups in different families have converged on producing the same stereotyped narrow band high frequency (NBHF) click.
Line A Kyhn +6 more
doaj +2 more sources
Echolocation by the harbour porpoise: Life in coastal waters [PDF]
Frontiers in Physiology, 2013 The harbour porpoise is one of the smallest and most widely spread of all toothed whales. They are found abundantly in coastal waters all around the northern hemisphere.
Lee Anton Miller, Magnus eWahlberg
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First Histological Study of the Gastrointestinal Tract and Associated Lymphoid Structures of a Harbour Porpoise (Phocoena phocoena) [PDF]
AnimalsThe current knowledge on the histological structure of the gastrointestinal tract (GIT) in cetaceans is based on general descriptions. The aim of this study was to characterize the histology and expression of immune cell markers in samples from the GIT ...
Diego Pérez-Maroto +6 more
doaj +2 more sources
Performance of theodolites versus drones in land-based studies of marine mammals [PDF]
Scientific ReportsTheodolites and drones are key instruments for observing small whales in coastal areas. This study compared their performance while observing the harbour porpoise (Phocoena phocoena) in the western Baltic Sea.
Thaya Mirinda Dinkel +8 more
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Exploring the effects of methodological choices on the estimation and biological interpretation of life history parameters for harbour porpoises in Norway and beyond. [PDF]
PLoS ONEThis study investigates effects of subtle methodological choices on the estimation and biological interpretation of age, growth and reproductive parameters for harbour porpoises.
Anne Kirstine Frie, Ulf Lindström
doaj +2 more sources
A matter of scale: Identifying the best spatial and temporal scale of environmental variables to model the distribution of a small cetacean [PDF]
Ecology and EvolutionThe importance of scale when investigating ecological patterns and processes is recognised across many species. In marine ecosystems, the processes that drive species distribution have a hierarchical structure over multiple nested spatial and temporal ...
Tiffany Goh +3 more
doaj +2 more sources
Did the pile driving during the construction of the Offshore Wind Farm Egmond aan Zee, the Netherlands, impact porpoises? [PDF]
, 2009 The Dutch consortium "NoordzeeWind" has built the first offshore wind farm in Dutch North Sea waters, known as "Offshore Wind farm Egmond aan Zee" (OWEZ) Part of the construction works consisted of driving 36 monopiles into the sea floor, during April ...
Camphuysen, C.J., Leopold, M.F.
core +16 more sources
Frontiers in Marine Science, 2023 The New York-New Jersey (NY-NJ) Harbour Estuary and surrounding waters support the largest port along the U.S. East Coast, commercial and recreational fishing, and a burgeoning offshore wind energy industry.
Melinda L. Rekdahl +6 more
doaj +1 more source
Frontiers in Marine Science, 2022 Pacific Harbour Porpoise (Phocoena phocoena vomerina) occupy a large range throughout coastal waters of British Columbia. Despite their wide distribution, they remain largely data-deficient regarding abundance and population trends, and as such are ...
Karina Dracott +6 more
doaj +1 more source
Comparing Distribution of Harbour Porpoises (Phocoena phocoena) Derived from Satellite Telemetry and Passive Acoustic Monitoring. [PDF]
PLoS ONE, 2016 Cetacean monitoring is essential in determining the status of a population. Different monitoring methods should reflect the real trends in abundance and patterns in distribution, and results should therefore ideally be independent of the selected method.
Lonnie Mikkelsen +9 more
doaj +1 more source