Results 51 to 60 of about 5,976 (206)

Tattoo Skin Disease in Cetacea: A Review, with New Cases for the Northeast Pacific

open access: yesAnimals, 2022
Tattoo skin disease (TSD) is a poxviral dermatopathy diagnosed in cetaceans. We review the literature on TSD aetiology, clinical characteristics, pathology and epidemiology and evaluate immune responses against the virus.
Marie-Françoise Van Bressem   +2 more
doaj   +1 more source

Range-dependent flexibility in the acoustic field of view of echolocating porpoises (Phocoena phocoena) [PDF]

open access: yes, 2015
Funding: Det Frie Forskningsrad (MJ)Toothed whales use sonar to detect, locate, and track prey. They adjust emitted sound intensity, auditory sensitivity and click rate to target range, and terminate prey pursuits with high-repetition-rate, low-intensity
Aroyan   +50 more
core   +4 more sources

Estimating the spatial position of marine mammals based on digital camera recordings [PDF]

open access: yes, 2015
Estimating the spatial position of organisms is essential to quantify interactions between the organism and the characteristics of its surroundings, for example,predator–prey interactions, habitat selection, and social associations.
Aarts, G.   +6 more
core   +5 more sources

Zn, Cu, Cd and Hg binding to metallothioneins in harbour porpoises Phocoena phocoena from the southern North Sea

open access: yesBMC Ecology, 2006
Background Harbour porpoises Phocoena phocoena from the southern North Sea are known to display high levels of Zn and Hg in their tissues linked to their nutritional status (emaciation). The question arises regarding a potential role of metallothioneins (
Jauniaux Thierry   +3 more
doaj   +1 more source

In the Search of Marine Pestiviruses: First Case of Phocoena Pestivirus in a Belt Sea Harbour Porpoise

open access: yesViruses, 2022
Pestiviruses are widespread pathogens causing severe acute and chronic diseases among terrestrial mammals. Recently, Phocoena pestivirus (PhoPeV) was described in harbour porpoises (Phocoena phocoena) of the North Sea, expanding the host range to marine ...
Iben Stokholm   +10 more
doaj   +1 more source

Synthetic communication signals influence wild harbour porpoise (Phocoena phocoena) behaviour [PDF]

open access: yes, 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

Sightings of Cetaceans in the waters of Yuzhny Sea Port (Hryhorivsky Estuary, Black Sea) in 2015–2016 [PDF]

open access: yesПраці Теріологічної школи, 2016
The use of transformed coastal ecosystems by the Black Sea cetaceans is an important, but little studied issue. In 2015–2016, coastal visual observations of cetaceans were conducted in the waters of Yuzhny Sea Port.
Оksana Savenko   +3 more
doaj   +1 more source

Climate change causing starvation in harbour porpoises? [PDF]

open access: yesBiology Letters, 2007
Recently, [MacLeod et al . (2007)][1] analysed data from harbour porpoises ( Phocoena phocoena ) stranded on Scottish North Sea coasts in March–May of 1993–2003. Comparing 2002–2003 data against baseline data from previous years, they suggest that reductions in sandeel prey have increased ...
Thompson, Paul   +5 more
openaire   +3 more sources

Occurrence and profiles of PCBs and PBDEs in harbour seals and harbour porpoises from the southern North Sea [PDF]

open access: yes, 2008
Harbour porpoises (Phocoena phocoen) and harbour seals (Phoca vitulina), two representative top coastal pollution. Concentrations of sum PCBs were 1-2 orders of magnitude higher than concentrations of sum PBDEs (with median values of 23.1 μg.g- lw ...
Blust, R.   +7 more
core  

Intraspecific variation of cochlear morphology in bowhead and beluga whales

open access: yesThe 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

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