Results 11 to 20 of about 735 (168)

Historical Range Contraction and Extent of Harbour Porpoises (Phocoena phocoena) in the Baltic Sea Revealed by Archival Newspapers [PDF]

open access: yesEcology and Evolution
Over the past several centuries, the Baltic Proper harbour porpoise (Phocoena phocoena) has undergone significant population declines, resulting in its current IUCN classification as critically endangered.
M. Aiken   +3 more
doaj   +3 more sources

Echolocation by the harbour porpoise: Life in coastal waters [PDF]

open access: yesFrontiers 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
doaj   +6 more sources

Harbour porpoise responses to pile-driving diminish over time [PDF]

open access: yesRoyal Society Open Science, 2019
Estimating impacts of offshore windfarm construction on marine mammals requires data on displacement in relation to different noise levels and sources.
Isla M. Graham   +6 more
doaj   +2 more sources

First Histological Study of the Gastrointestinal Tract and Associated Lymphoid Structures of a Harbour Porpoise (Phocoena phocoena) [PDF]

open access: yesAnimals
The 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]

open access: yesScientific Reports
Theodolites 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
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]

open access: yesEcology and Evolution
The 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

High heart rates in hunting harbour porpoises [PDF]

open access: yesProceedings of the Royal Society B: Biological Sciences, 2021
The impressive breath-hold capabilities of marine mammals are facilitated by both enhanced O 2 stores and reductions in the rate of O 2 consumption via peripheral vasoconstriction and bradycardia, called the dive response.
Birgitte I. McDonald   +8 more
openaire   +2 more sources

Environmental drivers of harbour porpoise fine-scale movements. [PDF]

open access: yesMar Biol, 2018
Quantifying intraspecific variation in movement behaviour of marine predators and the underlying environmental drivers is important to inform conservation management of protected species. Here, we provide the first empirical data on fine-scale movements of free-ranging harbour porpoises (Phocoena phocoena) in their natural habitat.
van Beest FM   +7 more
europepmc   +5 more sources

Hardly seen, often heard: acoustic presence of harbour porpoises (Phocoena phocoena) in one of the most urbanised estuaries in the world

open access: yesFrontiers 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

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