Results 151 to 160 of about 2,160 (243)
Ubiquitous sensing of marine activities via the cooperation of autonomous underwater vehicles. [PDF]
Yan J +6 more
europepmc +1 more source
ABSTRACT Chronic anthropogenic activity is an ongoing threat to the marine environment and presents unique challenges in shallow, coastal habitats where harbor porpoises reside. Harbor porpoises have high metabolic needs and are highly susceptible to negative environmental factors; however, no long‐term studies have been conducted on wild populations ...
Rachel L. Lennon +5 more
wiley +1 more source
Particle Filter-Guided Online Neural Networks for Multi-Target Bearing-Only Tracking in Passive Sonar Systems. [PDF]
Wang J, Wang L, Wang Z, Xie L, Hu H.
europepmc +1 more source
ABSTRACT The pygmy right whale (Caperea marginata) is one of the least studied mysticete species. To shed light on its geographic and seasonal distribution, we compiled archival acoustic recordings from 26 sites across southern Australia and developed a deep‐learning detector for pygmy right whale “doublet” vocalizations.
Paul Nguyen Hong Duc +11 more
wiley +1 more source
A High-Quality Underwater Acoustic Dataset for Algorithm Development and Analysis. [PDF]
Lobo V, Pessanha Santos N, Moura R.
europepmc +1 more source
Using ANIMAL‐SPOT Deep Learning Framework to Identify Call Types in Killer Whales
ABSTRACT Killer whales use complex vocalizations to maintain social structure and coordinate behavior, yet automated classification of call types remains challenging due to overlapping calls and structural similarity among call types. I evaluated the performance of the deep learning framework ANIMAL‐SPOT for identifying killer whale call types from raw
Olga A. Filatova
wiley +1 more source
DFSE-YOLO: deep feature selective enhancement for efficient shipwreck detection in side-scan sonar imagery. [PDF]
Lin Y +5 more
europepmc +1 more source
ABSTRACT Sperm whales (Physeter macrocephalus) play an important role in marine ecosystems as top predators, nutrient vectors, and indicators of ecosystem health. In Aotearoa New Zealand, sperm whales remain largely understudied other than at Kaikōura, a foraging area for males.
Whitney Steidl +3 more
wiley +1 more source
Orbital angular momentum- and frequency-dependent high-capacity encrypted hologram through multi-dimensional multiplexing acoustic metasurface. [PDF]
Zhou YQ +6 more
europepmc +1 more source
Abstract Turbidity currents transport vast amounts of sediment, carbon, and heat along submarine channels, yet their overspill onto channel‐levees and abyssal mixing remain poorly constrained due to lack of direct observations. Ocean‐bottom seismometers (OBS) deployed on the Congo Canyon–Channel levees captured the structure and turbulence of overspill
Pascal Kunath +2 more
wiley +1 more source

