Roberto Racca
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View article: Long-range propagation of airgun-array signals: Comparing numerical simulations and acoustic recordings in the Ionian sea
Long-range propagation of airgun-array signals: Comparing numerical simulations and acoustic recordings in the Ionian sea Open
Marine seismic surveys contribute to acoustic pollution, and the sounds they produce may be audible by marine mammals at several hundred kilometers distance. To evaluate the potential effects of such sounds on fauna and translate them into…
View article: Modeling the Underwater Sound of Floating Offshore Windfarms in the Central Mediterranean Sea
Modeling the Underwater Sound of Floating Offshore Windfarms in the Central Mediterranean Sea Open
In the shift toward sustainable energy production, offshore wind power has experienced notable expansion. Several projects to install floating offshore wind farms in European waters, ranging from a few to hundreds of turbines, are currentl…
View article: Vector acoustic properties of underwater noise from impact pile driving measured within the water column
Vector acoustic properties of underwater noise from impact pile driving measured within the water column Open
Vector acoustic properties of the underwater noise originating from impact pile driving on steel piles has been studied, including the identification of features of Mach wave radiation associated with the radial expansion of the pile upon …
View article: Acoustic monitoring and analyses of air gun, pile driving, vessel, and ambient sounds during the 2015 seismic surveys on the Sakhalin shelf
Acoustic monitoring and analyses of air gun, pile driving, vessel, and ambient sounds during the 2015 seismic surveys on the Sakhalin shelf Open
During the summer of 2015, four 4D seismic surveys were conducted on the northeastern Sakhalin shelf near the feeding grounds of the Korean-Okhotsk (western) gray whale ( Eschrichtius robustus ) population. In addition to the seismic surve…
View article: Real-time acoustic monitoring with telemetry to mitigate potential effects of seismic survey sounds on marine mammals: a case study offshore Sakhalin Island
Real-time acoustic monitoring with telemetry to mitigate potential effects of seismic survey sounds on marine mammals: a case study offshore Sakhalin Island Open
Exxon Neftegas Ltd. (ENL) carried out three 4D seismic surveys during the summer of 2015. Seismic operations in two of these fields (Odoptu and Chayvo) ensonified the nearshore feeding area of Korean-Okhotsk (western) gray whales ( Eschric…
View article: INTERNATIONAL QUIET OCEAN EXPERIMENT – ARCTIC ACOUSTIC ENVIRONMENTS
INTERNATIONAL QUIET OCEAN EXPERIMENT – ARCTIC ACOUSTIC ENVIRONMENTS Open
High-latitude regions like the Arctic Ocean are becoming increasingly important as global warming makes them more accessible, raising economic and political interests. Sea ice reduction is facilitating resource exploration, marine transpor…
View article: Modeling the aggregated exposure and responses of bowhead whales Balaena mysticetus to multiple sources of anthropogenic underwater sound
Modeling the aggregated exposure and responses of bowhead whales Balaena mysticetus to multiple sources of anthropogenic underwater sound Open
© The authors 2016.Potential responses of marine mammals to anthropogenic underwater sound are usually assessed by researchers and regulators on the basis of exposure to a single, relatively loud sound source. However, marine mammals typic…
View article: Seismic surveys and gray whales near Sakhalin: Multivariate analyses of monitoring data from 2010 Astokh geophysical survey
Seismic surveys and gray whales near Sakhalin: Multivariate analyses of monitoring data from 2010 Astokh geophysical survey Open
Monitoring of a 2010 seismic survey near the feeding grounds of gray whales (Eschrichtius robustus) off Sakhalin Island, Russia, yielded underwater sound recordings and visual observations of nearshore distribution and behavior during the …
View article: Behavioural responses of western gray whales to a 4-D seismic survey off northeastern Sakhalin Island, Russia
Behavioural responses of western gray whales to a 4-D seismic survey off northeastern Sakhalin Island, Russia Open
A seismic survey was conducted off the northeastern coast of Sakhalin Island, Russia in 2010. The survey area was adjacent to the only known near-shore feeding ground of the Critically Endangered population of western gray whales Eschricht…
View article: Gray whale densities during a seismic survey off Sakhalin Island, Russia
Gray whale densities during a seismic survey off Sakhalin Island, Russia Open
Some whale populations that were severely reduced by commercial whaling have shown strong recovery since becoming protected, while others remain depleted and of high conservation concern. Small populations are particularly susceptible to a…
View article: Monitoring the gray whale sound exposure mitigation zone and estimating acoustic transmission during a 4-D seismic survey, Sakhalin Island, Russia
Monitoring the gray whale sound exposure mitigation zone and estimating acoustic transmission during a 4-D seismic survey, Sakhalin Island, Russia Open
A seismic survey conducted in the proximity of the nearshore feeding grounds of gray whales Eschrichtius robustus off northeastern Sakhalin Island, Russia, required the development of a comprehensive monitoring and mitigation plan. Prior t…
View article: Distance from shore as an indicator of disturbance of gray whales during a seismic survey off Sakhalin Island, Russia
Distance from shore as an indicator of disturbance of gray whales during a seismic survey off Sakhalin Island, Russia Open
A seismic survey was conducted adjacent to the nearshore feeding ground of gray whales Eschrichtius robustus off northeastern Sakhalin Island, Russia. Scan surveys were conducted at 7 shore stations before, during and after the seismic sur…
View article: Monitoring and impact mitigation during a 4D seismic survey near a population of gray whales off Sakhalin Island, Russia
Monitoring and impact mitigation during a 4D seismic survey near a population of gray whales off Sakhalin Island, Russia Open
A 4D seismic survey was conducted in 2010 near the feeding grounds of gray whales off Sakhalin Island, Russia. To minimize disruptions to the whales’ feeding activity and enhance understanding of the potential impacts of seismic surveys on…