Results 51 to 60 of about 1,522 (208)

Predicting Harbor Porpoise Strandings Based on Near-Shore Sightings Indicates Elevated Temporal Mortality Rates

Frontiers in Marine Science, 2021
The increase in anthropogenic activities and their potential impact on wildlife requires the establishment of monitoring programs and identification of indicator species. Within marine habitats, marine mammals are often used as ecosystem sentinels, which
Lonneke L. IJsseldijk, Kees C. J. Camphuysen, Kees C. J. Camphuysen, Guido O. Keijl, Guido O. Keijl, Gerard Troost, Gerard Troost, Geert Aarts, Geert Aarts, Geert Aarts   +9 more
doaj   +1 more source

Harbor porpoise (Phocoena phocoena) reactions to pingers

Marine Mammal Science, 2018
AbstractThe use of acoustic alarms (pingers) has been mandated in several gill net fisheries around the world. Even though pingers have shown to reduce the incidental catch there are still questions to be answered in relation to effective range, habituation and displacement. In the present studies, the vocalization behavior of porpoises was recorded in
Kindt-Larsen, Lotte; id_orcid 0000-0003-4696-5943, Berg, Casper Willestofte; id_orcid 0000-0002-3812-5269, Northridge, Simon, Larsen, Finn; id_orcid 0000-0001-6498-9012   +3 more
openaire   +2 more sources

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

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

, 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
Christensen, C.B., Johnson, Mark, John M Ratcliffe, Johnson, M., Koblitz, Jens C., Koblitz, J., Madsen, Peter Teglberg, Wisniewska, D., Beedholm, Kristian, Jens C Koblitz, Ratcliffe, J., Wahlberg, M., Koblitz, Jens C, Madsen, P.T., Ratcliffe, John M., Madsen, P., Madsen, Peter T., Koblitz, J. C., Wisniewska, Danuta Maria, Wisniewska, Danuta M., Wahlberg, Magnus, Danuta M Wisniewska, Madsen, Peter M., Christensen, C. B., Christensen, Christian Bech, Beedholm, K., Ratcliffe, J.M., Magnus Wahlberg, Wisniewska, D.M., Kristian Beedholm, Wahlberg, Magnus; id_orcid, Christensen, Christian B., Christian B Christensen, Koblitz, J.C., Wisniewska, D. M.; id_orcid, Ratcliffe, John Morgan, Mark Johnson, Christensen, C., Peter T Madsen   +38 more
core   +1 more source

Comparative analysis on distribution of common cetacean and fish species in the Barents Sea

Известия ТИНРО, 2021
Comparative analysis of cetacean and fish species distribution in the Barents Sea is conducted on the data of joint Russian-Norwegian ecosystem surveys in August-October of 2005–2014.
R. N. Klepikovskiy, V. А. Ivshin, A. G. Trofimov   +2 more
doaj   +1 more source

Assessing the Underwater Impact of Aerodynamic Noise From Offshore Wind Turbines

Wind Energy, Volume 29, Issue 7, July 2026.
ABSTRACT The growing demand for offshore wind energy has led to a significant increase in wind turbine size and to the development of large‐scale wind farms, often comprising 100–150 turbines. However, the environmental impact of underwater noise emissions remains largely unaddressed.
Laura Botero‐Bolívar, Oscar A. Marino Sánchez, Martín de Frutos, Esteban Ferrer   +3 more
wiley   +1 more source

Risk factor determination and qualitative risk assessment of Mucormycosis in Harbor Porpoise, an emergent fungal disease in Salish Sea marine mammals

Frontiers in Marine Science, 2022
Mucorales infections are increasing in frequency and are a One Health pathogen of concern. In humans and domestic animals, risk factors include being immunocompromised, elevated circulating serum iron, contaminated open wounds, or metabolic diseases such
Stephanie A. Norman, Jessica L. Huggins, Dyanna M. Lambourn, Linda D. Rhodes, Michael M. Garner, Jennie L. Bolton, Joseph K. Gaydos, Alyssa Scott, Stephen Raverty, John Calambokidis   +9 more
doaj   +1 more source

Variation of blubber thickness for three marine mammal species in the southern Baltic Sea

Frontiers in Physiology, 2022
Evaluating populational trends of health condition has become an important topic for marine mammal populations under the Marine Strategy Framework Directive (MSFD). In the Baltic Sea, under the recommendation of Helsinki Commission (HELCOM), efforts have
Ursula Siebert, Miguel L. Grilo, Tina Kesselring, Kristina Lehnert, Katrin Ronnenberg, Iwona Pawliczka, Anders Galatius, Line A. Kyhn, Michael Dähne, Anita Gilles   +9 more
doaj   +1 more source

Harbor Porpoise and Beluga Whale Habitat Use in the Saguenay‐St. Lawrence Marine Park (Canada) Revealed by a Combination of Visual and Acoustic Survey

Marine Mammal Science, Volume 42, Issue 3, July 2026.
ABSTRACT Studying habitat use of cetaceans that spend most of their lives underwater poses challenges, prompting the use of complementary methods. Non‐invasive methods, land‐based surveys (LBS) and passive acoustic monitoring (PAM), were used to characterize occurrence patterns of beluga whales, harbor porpoises, and vessels in the Saguenay–St ...
Coralie Bernier‐Breton, Cristiane C. A. Martins, Gesche Winkler, Pierre Mercure‐Boissonnault, Léna Velé, Pierre Cauchy   +5 more
wiley   +1 more source

Cetacean Strandings in the US Pacific Northwest 2000–2019 Reveal Potential Linkages to Oceanographic Variability

Frontiers in Marine Science, 2022
Studying patterns in marine mammal stranding cases can provide insight into changes in population health, abundance, and distribution. Cetaceans along the United States West coast strand for a wide variety of reasons, including disease, injury, and poor ...
Amanda J. Warlick, Jessica L. Huggins, Dyanna M. Lambourn, Deborah A. Duffield, Dalin N. D’Alessandro, James M. Rice, John Calambokidis, M. Bradley Hanson, Joseph K. Gaydos, Steven J. Jeffries, Jennifer K. Olson, Jonathan J. Scordino, Adrianne M. Akmajian, Matthew Klope, Susan Berta, Sandy Dubpernell, Betsy Carlson, Susan Riemer, Jan Hodder, Victoria Souze, Alysha Elsby, Cathy King, Kristin Wilkinson, Tiffany Boothe, Stephanie A. Norman   +24 more
doaj   +1 more source