Results 21 to 30 of about 1,758 (185)

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

Airborne and Underwater Noise Produced by a Hovercraft in the North Caspian Region: Pressure and Particle Motion Measurements

Journal of Marine Science and Engineering, 2023
The measurements of airborne and underwater noise radiated by a Griffon BHT130 hovercraft were conducted in the Ural-Caspian Channel and in the North Caspian Sea.
Alexandr I. Vedenev, Oleg Yu. Kochetov, Andrey A. Lunkov, Andrey S. Shurup, Saltanat S. Kassymbekova   +4 more
doaj   +1 more source

Underwater noise characteristics of offshore exploratory drilling and its impact on marine mammals

Frontiers in Marine Science, 2023
Geotechnical survey is an important prerequisite to the construction of offshore wind farms. However, the impact of underwater survey noises has not yet been studied in details.
Long-Fei Huang, Xiao-Mei Xu, Liang-Liang Yang, Liang-Liang Yang, Shen-Qin Huang, Xin-Hai Zhang, Yang-Liang Zhou   +6 more
doaj   +1 more source

Treatment of sudden sensorineural hearing loss with hyperbaric oxygenation - our experience [PDF]

Vojnosanitetski Pregled, 2017
Background/Aim. Sudden sensorineural hearing loss is manifested by the loss of hearing for more than 30 dB at three consecutive frequencies in the timeframe of 72 h.
Živaljević Zvonko, Živić Ljubica, Mihailović Nataša, Živković Miodrag, Vorkapić Branko, Baletić Nenad   +5 more
doaj   +1 more source

The Use of Psychoacoustics in Marine Mammal Conservation in the United States: From Science to Management and Policy

Journal of Marine Science and Engineering, 2021
Underwater sound generated from human activities has been long recognized to cause adverse effects on marine mammals, ranging from auditory masking to behavioral disturbance to hearing impairment.
Shane Guan, Tiffini Brookens
doaj   +1 more source

HUBUNGAN ANTARA PENGETAHUAN MENYELAM DENGAN GANGGUAN PENDENGARAN PADA PEKERJA BAWAH AIR DI PERUSAHAAN KONSTRUKSI BAWAH LAUT

The Indonesian Journal of Occupational Safety and Health, 2019
Underwater workers were prone to hearing loss. Pressure during diving and depth of dive were causing hearing loss.Jobs that are at risk for barotrauma are divers, keepers or pearl takers, marine boat keepers, rescue teams, and underwater construction ...
Eka Senja Koesdianasari
doaj   +1 more source

Fatal aspergillosis and evidence of unrelated hearing loss in a harbor porpoise (Phocoena phocoena) from the German Baltic Sea

Frontiers in Marine Science, 2022
Detailed post-mortem investigations including the auditory pathway are needed to advance our understanding of how underwater noise and other stressors affect hearing in cetaceans.
Simon Rohner, Maria Morell, Peter Wohlsein, Julian Stürznickel, Eva B. Reiter, Annika Jahnke, Annika Jahnke, Ellen Prenger-Berninghoff, Christa Ewers, Grit Walther, Lotte C. Striewe, Antonio Virgilio Failla, Ursula Siebert   +12 more
doaj   +1 more source

First evidence of underwater vocalizations in green sea turtles Chelonia mydas

Endangered Species Research, 2022
Marine turtles have long been considered to be silent, but few investigations have been performed to confirm such muteness. However, recent studies on the aerial and underwater hearing abilities of marine turtles have shown they have an ability to ...
I Charrier, L Jeantet, L Maucourt, S Régis, N Lecerf, A Benhalilou, D Chevallier   +6 more
doaj   +1 more source

Severe Hearing Loss in the World's First Successfully Captive-Born Yangtze Finless Porpoise: Impact of High Underwater Sound Exposure and Congenital Hearing Disorders. [PDF]

Integr Zool
The audiogram of the world's first successfully captive‐born Yangtze finless porpoise was on average 40 dB higher than conspecifics. Congenital hearing disorders and noise exposure may be the primary cause of porpoise's hearing loss. ABSTRACT Aquariums globally have seen significant growth in recent decades.
Wang Z, Akamatsu T, Wang K, Wang D.
europepmc   +2 more sources

Does Soundpeaking Affect the Behavior of Chub (Squalius cephalus) and Brown Trout (Salmo trutta)? An Experimental Approach

Fishes, 2023
Increased turbulent flow and sediment transport during flood or hydropeaking events often induces rapid changes in underwater sound pressure levels, which is here referred to as soundpeaking.
Johannes L. Kowal, Stefan Auer, Stefan Schmutz, Wolfram Graf, Richard Wimmer, Diego Tonolla, Paul Meulenbroek   +6 more
doaj   +1 more source