Harbour porpoise responses to pile-driving diminish over time
نویسندگان
چکیده
منابع مشابه
Avoidance of wind farms by harbour seals is limited to pile driving activities
As part of global efforts to reduce dependence on carbon-based energy sources there has been a rapid increase in the installation of renewable energy devices. The installation and operation of these devices can result in conflicts with wildlife. In the marine environment, mammals may avoid wind farms that are under construction or operating. Such avoidance may lead to more time spent travelling...
متن کاملHarbour Porpoise Presence near Oil Tankers
Harbour porpoises (Phocoena phocoena) are thought to be “shy” animals that are easily disturbed by underwater noises. There is concern that sources of anthropogenic sound, especially those associated with shipping and pile driving, will drive porpoises away from their preferred habitat [1]. A recent study, however, found that harbour porpoises were occasionally present within a few hundred m of...
متن کاملEcholocation by the harbour porpoise: life in coastal waters
The harbor porpoise is one of the smallest and most widely spread of all toothed whales. They are found abundantly in coastal waters all around the northern hemisphere. They are among the 11 species known to use high frequency sonar of relative narrow bandwidth. Their narrow biosonar beam helps isolate echoes from prey among those from unwanted items and noise. Obtaining echoes from small objec...
متن کاملMitochondrial DNA variation in the Japanese harbour porpoise (Phocoena phocoena)
They are top predators in coastal ecosystems, but today, are exposed to environmental pollutants and fisheries pressures (Jefferson and Curry, 1994; Beineke et al., 2005; Jepson et al., 2005). Especially, population reduction due to incidental catch has been a growing serious problem in a part of the North Atlantic (Woodley and Read, 1991; Trippel et al., 1996). It is important to understand th...
متن کاملModeling of vibratory pile driving
Vibratory installation of piles and casings can be extremely economical and therefore the contractors’ preferred method of pile driving. Compared to impact pile driving it also has the advantage of reduced noise pollution. Unfortunately, this installation method is still fraught with uncertainties. The foremost question is driveability and equally important is the question of bearing capacity o...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Royal Society Open Science
سال: 2019
ISSN: 2054-5703
DOI: 10.1098/rsos.190335