Results 31 to 40 of about 2,362 (131)

Abundance and Trends of Indo-Pacific Finless Porpoises (Neophocaena phocaenoides) in Hong Kong Waters, 1996–2019

Frontiers in Marine Science, 2020
The Indo-Pacific finless porpoise (Neophocaena phocaenoides) occurs year-round in waters of southern and eastern Hong Kong. The population biology of the population was studied in the late 1990s and early 2000s, but has not been examined recently.
Thomas A. Jefferson, Jeffrey E. Moore
doaj   +1 more source

Counting cases, conserving species: addressing highly pathogenic avian influenza in wildlife

Biological Reviews, EarlyView.
ABSTRACT Highly pathogenic avian influenza (HPAI) has become a critical threat to wildlife, shifting from a seasonal epizootic to a persistent, year‐round panzootic with global consequences. Here, we summarise the origin, evolutionary mechanisms, and expanding host range of the current H5N1 virus (clade 2.3.4.4b) and assess its impact on wildlife. Over
Ulrich Knief, Sandra Bouwhuis, Anja Globig, Anne Günther, Wouter Courtens   +4 more
wiley   +1 more source

Half a Century of Per‐ and Polyfluoroalkyl Substances in Northern Gannet Eggs: Impact of Regulations

Journal of Applied Toxicology, EarlyView.
ABSTRACT Per‐ and polyfluoroalkyl substances (PFAS), known as “forever chemicals”, are persistent organic pollutants that have been widely used in the industry across the globe for many decades. Their chemical stability, bioaccumulation, and toxicity pose major environmental and health risks. This study examines temporal trends in the concentrations of
Anaïs Fournier, Anaïs Kerric, Raphaël A. Lavoie   +2 more
wiley   +1 more source

Scalable low‐cost seabed landers: the missing link for sustained, integrated, long‐term observations in dynamic shallow seas

Remote Sensing in Ecology and Conservation, EarlyView.
Seabed landers, when equipped with a range of biotic and abiotic sensors, offer a non‐invasive and cost‐effective solution for ecosystem‐scale monitoring of Essential Biodiversity Variables (EBVs) and Essential Ocean Variables (EOVs) in dynamic shallow seas.
Arienne Calonge, Roeland Develter, Carlota Muñiz, Clea Parcerisas, Jan Reubens, Wieter Boone, Klaas Deneudt, Elisabeth Debusschere   +7 more
wiley   +1 more source

Norovirus Infection in Harbor Porpoises

Emerging Infectious Diseases, 2017
A norovirus was detected in harbor porpoises, a previously unknown host for norovirus. This norovirus had low similarity to any known norovirus. Viral RNA was detected primarily in intestinal tissue, and specific serum antibodies were detected in 8 (24%)
Miranda de Graaf, Rogier Bodewes, Cornelis E. van Elk, Marco van de Bildt, Sarah Getu, Georgina I. Aron, Georges M.G.M. Verjans, Albert D.M.E. Osterhaus, Judith M.A. van den Brand, Thijs Kuiken, Marion P.G. Koopmans   +10 more
doaj   +1 more source

Blubber Thickening Driven by UCP1 Inactivation: Insights from a Cetacean‐Like Transgenic Mouse Model

Integrative Zoology, EarlyView.
UCP1 inactivation of cetaceans in mice drives BAT whitening and iWAT hyperplasia, promoting fat accumulation for aquatic adaptation. Abstract Cetaceans possess thick blubber, a specialized adipose tissue essential for thermal insulation, a streamlined body form, energy storage, and buoyancy. However, the mechanisms that underpin this adaptation are not
Qian Zhang, Yuehua Wang, Hang Zhang, Guiping Xu, Shixia Xu, Guang Yang   +5 more
wiley   +1 more source

Assessing the Effects of Banana Pingers as a Bycatch Mitigation Device for Harbour Porpoises (Phocoena phocoena)

Frontiers in Marine Science, 2020
Bycatch is a significant cause of population declines of marine megafauna globally. While numerous bycatch mitigation strategies exist, acoustic alarms, or pingers, are the most widely adopted strategy for small cetaceans.
Lucy C. M. Omeyer, Lucy C. M. Omeyer, Philip D. Doherty, Sarah Dolman, Robert Enever, Allan Reese, Nicholas Tregenza, Ruth Williams, Brendan J. Godley   +8 more
doaj   +1 more source

Heart rate and startle responses in diving, captive harbour porpoises (Phocoena phocoena) exposed to transient noise and sonar

Biology Open, 2021
Anthropogenic noise can alter marine mammal behaviour and physiology, but little is known about cetacean cardiovascular responses to exposures, despite evidence that acoustic stressors, such as naval sonars, may lead to decompression sickness.
Siri L. Elmegaard, Birgitte I. McDonald, Jonas Teilmann, Peter T. Madsen   +3 more
doaj   +1 more source

Comparative review of entanglement risk assessments for cetacean conservation and management

Conservation Biology, EarlyView.
Abstract Cetacean entanglement in fishing gear remains a major global threat that exposes persistent gaps in how fisheries management frameworks manage risk to nontarget species. Ecological risk assessment (ERA) offers a structured way to link exposure and consequences to an explicit statement of risk, but entanglement risk assessments vary widely in ...
Laura Joan Feyrer, Clair Evers, Hilary Moors‐Murphy   +2 more
wiley   +1 more source

A Result of Accidental Noise Pollution: Acoustic Flowmeters Emit 28 kHz Pulses That May Affect Harbor Porpoise Hearing

Frontiers in Marine Science, 2022
Large rivers like the Elbe or the Weser are periodically entered by harbor porpoises of the North Sea. They may even move 97 km upstream to the port of Hamburg, where their presence is highest in spring.
Tobias Schaffeld, Joseph G. Schnitzler, Andreas Ruser, Johannes Baltzer, Max Schuster, Ursula Siebert   +5 more
doaj   +1 more source