Feasibility of Ocean Acoustic Waveguide Remote Sensing (OAWRS) of Atlantic Cod with Seafloor Scattering Limitations [PDF]
Remote Sensing, 2013 Recently reported declines in the population of Atlantic cod have led to calls for additional survey methods for stock assessments. In combination with conventional line-transect methods that may have ambiguities in sampling fish populations, Ocean ...
Ankita D. Jain +4 more
doaj +8 more sources
Ecosystem scale acoustic sensing reveals humpback whale behavior synchronous with herring spawning processes and re-evaluation finds no effect of sonar on humpback song occurrence in the Gulf of Maine in fall 2006. [PDF]
PLoS One, 2014 We show that humpback-whale vocalization behavior is synchronous with peak annual Atlantic herring spawning processes in the Gulf of Maine. With a passive, wide-aperture, densely-sampled, coherent hydrophone array towed north of Georges Bank in a Fall ...
Gong Z +7 more
europepmc +5 more sources
Maximum Likelihood Deconvolution of Beamformed Images with Signal-Dependent Speckle Fluctuations from Gaussian Random Fields: With Application to Ocean Acoustic Waveguide Remote Sensing (OAWRS) [PDF]
Remote Sensing, 2016 Wide area acoustic remote sensing often involves the use of coherent receiver arrays to determine the spatial distribution of sources and scatterers at any instant. The resulting acoustic intensity images are typically corrupted by signal-dependent noise
Ankita D. Jain, Nicholas C. Makris
doaj +6 more sources
Quantification of Wide-Area Norwegian Spring-Spawning Herring Population Density with Ocean Acoustic Waveguide Remote Sensing (OAWRS) [PDF]
Remote Sensing, 2021 Norwegian spring-spawning herring are a critical economic resource for multiple nations in the North Atlantic and a keystone species of the Nordic Seas ecosystem.
Daniel Duane +2 more
doaj +4 more sources
Changes in humpback whale song occurrence in response to an acoustic source 200 km away. [PDF]
PLoS One, 2012 The effect of underwater anthropogenic sound on marine mammals is of increasing concern. Here we show that humpback whale (Megaptera novaeangliae) song in the Stellwagen Bank National Marine Sanctuary (SBNMS) was reduced, concurrent with transmissions of
Risch D +3 more
europepmc +2 more sources
Remote Sensing, 2023 Ocean Acoustic Waveguide Remote Sensing (OAWRS) enables fish population density distributions to be instantaneously quantified and continuously monitored over wide areas.
Kaklamanis Eleftherios +2 more
doaj +3 more sources
Remote Sensing, 2021 Attenuation from fish can reduce the intensity of acoustic signals and significantly decrease detection range for long-range passive sensing of manmade vehicles, geophysical phenomena, and vocalizing marine life.
Daniel Duane +4 more
doaj +1 more source
Ocean Acoustic Waveguide Remote Sensing (OAWRS) of marine ecosystems [PDF]
Marine Ecology Progress Series, 2009 Abstract : Ocean Acoustic Waveguide Remote Sensing (OAWRS) has recently been shown to becapable of instantaneously imaging and continuously monitoring fish populations over continentalshelf-scale areas, covering thousands of km2. We show how OAWRS can be used in a variety ofoceanic ecosystems to remotely assess populations and study the behavior of ...
Jagannathan, Srinivasan +14 more
openaire +2 more sources
The Effect of Attenuation from Fish Shoals on Long-Range, Wide-Area Acoustic Sensing in the Ocean
Remote Sensing, 2019 Acoustics is the primary means of long-range and wide-area sensing in the ocean due to the severe attenuation of electromagnetic waves in seawater.
Daniel Duane +4 more
doaj +1 more source
Remote Sensing, 2018 The migration of extensive social groups towards specific spawning grounds in vast and diverse ocean environments is an integral part of the regular spawning process of many oceanic fish species.
Dong Hoon Yi +4 more
doaj +1 more source