Results 71 to 80 of about 1,799 (179)

Harbor Porpoise (Phocoena phocoena) Reaction to a 3D Seismic Airgun Survey in the North Sea

Frontiers in Marine Science, 2020
The most common cetacean in the North Sea is the harbor porpoise (Phocoena phocoena). Underwater noise is increasingly recognized as a source of impact on the marine environment and seismic airguns were one of the first man-made high intensity sound ...
Joanna Sarnocińska, Jonas Teilmann, Jeppe Dalgaard Balle, Floris M. van Beest, Matthieu Delefosse, Jakob Tougaard   +5 more
doaj   +1 more source

Programmed unmanned aerial vehicles show great potential for monitoring marine megafauna in specific areas of interest

Remote Sensing in Ecology and Conservation, Volume 12, Issue 3, Page 368-387, June 2026.
Targeted conservation measures are contingent on robust knowledge of spatio‐temporal animal distribution in areas of interest. We explore unmanned aerial vehicle (UAV) transect monitoring as a novel method for standardized digital aerial surveys of marine megafauna by investigating the fine‐resolution spatio‐temporal distribution of harbour porpoises ...
Dinah Hartmann, Valdemar Palmqvist, Johanna Stedt   +2 more
wiley   +1 more source

A negative trend in abundance and an exceeded mortality limit call for conservation action for the Vulnerable Belt Sea harbour porpoise population

Frontiers in Marine Science
The management and conservation of biodiversity relies on information on both the abundance of species and the potential impact of threats. Globally, one of the largest threats towards marine biodiversity is bycatch in fisheries.
Kylie Owen, Anita Gilles, Matthieu Authier, Julia Carlström, Mathieu Genu, Line Anker Kyhn, Dominik A. Nachtsheim, Nadya C. Ramírez-Martínez, Nadya C. Ramírez-Martínez, Ursula Siebert, Martin Sköld, Martin Sköld, Jonas Teilmann, Bianca Unger, Signe Sveegaard   +14 more
doaj   +1 more source

Preserving an Imperiled Porpoise Through Pixels: Digitization of a Vaquita (Phocoena sinus) Skeleton, the World's Most Endangered Marine Mammal

Marine Mammal Science, Volume 42, Issue 3, July 2026.
Jamie L. Knaub, Brittany A. Dolan, Philip Unitt, Robert L. Brownell Jr., Tricia L. Meredith, Marianne E. Porter   +5 more
wiley   +1 more source

Whole Genome Analyses of the Endangered Northern Abalone (Haliotis kamtschatkana) Reveal Population Differentiation and a Genomic Signature of a Dramatic Population Decline

Evolutionary Applications, Volume 19, Issue 6, June 2026.
ABSTRACT Despite widespread declines of many wildlife species, the effects of population decline on the genome and the recovery potential of affected species are still poorly understood, especially beyond a few charismatic species. The Northern abalone (or Pinto abalone; Haliotis kamtschatkana) is a marine gastropod mollusk of social, cultural and ...
Anna Tigano, Erin C. Herder, Kayla Long, Janine Supernault, Daniel L. Curtis, S. Christine Hansen, Mackenzie D. Mazur, Eric B. Rondeau, Dominique Bureau   +8 more
wiley   +1 more source

Haematology and clinical blood chemistry in harbour porpoises (Phocoena phocoena) from the inner Danish waters

Environment International, 2020
Harbour porpoises (Phocoena phocoena) in the Baltic Sea are under increasing pressure from anthropogenic activities, which affect the overall health of populations.
Ursula Siebert, Marie-Anne Blanchet, Jonas Teilmann, Kirstin Anderson Hansen, Jakob Kristensen, Paulien Bunskoek, Rune Dietz, Jean-Pierre Desforges, Christian Sonne, Geneviève Desportes   +9 more
doaj   +1 more source

The Importance of Individual Body Condition in Mammalian Behavioural Responses to Disturbance

Mammal Review, Volume 56, Issue 2, June 2026.
Body condition, shaped by the balance between energy demands and reserves, predictably shapes mammalian disturbance responses. Poor‐condition individuals adopt needs‐based strategies, accepting greater risks to meet immediate energetic needs, while good‐condition individuals follow asset‐protection strategies, minimizing risks to protect their survival
Valeria Perez‐Marrufo, Lesley Thorne, Susan E. Parks   +2 more
wiley   +1 more source

Time and tide: Seasonal, diel and tidal rhythms in Wadden Sea Harbour porpoises (Phocoena phocoena).

PLoS ONE, 2019
Odontocetes have evolved a rich diversity of prey- and habitat-specific foraging strategies, which allows them to feed opportunistically on locally and temporally abundant prey.
Beate Zein, Benno Woelfing, Michael Dähne, Tobias Schaffeld, Stefan Ludwig, Jacob Hansen Rye, Johannes Baltzer, Andreas Ruser, Ursula Siebert   +8 more
doaj   +1 more source

Bartonella henselae in Porpoise Blood

Emerging Infectious Diseases, 2005
We report detection of Bartonella henselae DNA in blood samples from 2 harbor porpoises (Phocoena phocoena). By using real-time polymerase chain reaction, we directly amplified Bartonella species DNA from blood of a harbor porpoise stranded along the ...
Ricardo G. Maggi, Craig A. Harms, Aleta A. Hohn, D. Ann Pabst, William A. McLellan, Wendy J. Walton, David S. Rotstein, Edward B. Breitschwerdt   +7 more
doaj   +1 more source

Clicking for supper

eLife, 2015
When close to prey, porpoises actively widen their sonar beam, which may make it harder for the prey to escape.
Peter Tyack
doaj   +1 more source