Search Results - "Tiemann, Christopher O."
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Decadal Assessment of Sperm Whale Site-Specific Abundance Trends in the Northern Gulf of Mexico Using Passive Acoustic Data
Published in Journal of marine science and engineering (01-05-2021)“…Passive acoustic monitoring has been successfully used to study deep-diving marine mammal populations. To assess regional population trends of sperm whales in…”
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Investigating beaked whale’s regional habitat division and local density trends near the Deepwater Horizon oil spill site through acoustics
Published in Frontiers in Marine Science (17-01-2023)“…Pre-spill and post-spill passive acoustic data collected by multiple fixed acoustic sensors monitoring about 2400 km 2 area to the west of the Deepwater…”
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Observations of potential acoustic cues that attract sperm whales to longline fishing in the Gulf of Alaska
Published in The Journal of the Acoustical Society of America (01-08-2007)“…Sperm whales ( Physeter macrocephalus ) have learned to remove fish from demersal longline gear deployments off the eastern Gulf of Alaska, and are often…”
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Three-dimensional localization of sperm whales using a single hydrophone
Published in The Journal of the Acoustical Society of America (01-10-2006)“…A three-dimensional localization method for tracking sperm whales with as few as one sensor is demonstrated. Based on ray-trace acoustic propagation modeling,…”
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Passive Acoustic Monitoring of the Environmental Impact of Oil Exploration on Marine Mammals in the Gulf of Mexico
Published in Advances in experimental medicine and biology (01-01-2016)“…The Gulf of Mexico is a region densely populated by marine mammals that must adapt to living in a highly active industrial environment. This paper presents a…”
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Integral measurements of mass transport and heat content in the Strait of Gibraltar from acoustic transmissions
Published in Deep-sea research. Part II, Topical studies in oceanography (2002)“…Three 2 kHz acoustic transceivers were deployed on either side of the eastern entrance of the Strait of Gibraltar during April–May 1996 to determine the…”
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Localization of marine mammals near Hawaii using an acoustic propagation model
Published in The Journal of the Acoustical Society of America (01-06-2004)“…Humpback whale songs were recorded on six widely spaced receivers of the Pacific Missile Range Facility (PMRF) hydrophone network near Hawaii during March of…”
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Three-dimensional passive acoustic tracking of sperm whale behavior with widely separated vertical arrays in the Gulf of Alaska
Published in The Journal of the Acoustical Society of America (01-11-2006)“…The Southeast Alaska Sperm Whale Avoidance Project (SEASWAP) was started in 2002 to study the increasing depredation encounters between sperm whales and…”
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Model-based unsupervised clustering for distinguishing Cuvier's and Gervais' beaked whales in acoustic data
Published in Ecological informatics (01-07-2020)“…Passive acoustic monitoring (PAM), particularly autonomous platforms, offers many advantages in monitoring phonating deep-diving marine mammals in oceanic…”
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Acoustic scattering by internal solitary waves in the Strait of Gibraltar
Published in The Journal of the Acoustical Society of America (01-01-2001)“…High-frequency underwater acoustic transmissions across the Strait of Gibraltar were used to examine acoustic scattering caused by the unique internal wave…”
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Acoustic remote sensing of internal solitary waves and internal tides in the Strait of Gibraltar
Published in The Journal of the Acoustical Society of America (01-08-2001)“…High-frequency underwater acoustic transmissions across the Strait of Gibraltar are used to examine the feasibility of acoustically measuring several physical…”
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Multipath features as a contextual clue for classification
Published in The Journal of the Acoustical Society of America (01-03-2010)“…A single odontocete click is often heard as multiple click echoes due to the many paths sound travels between the source (whale) and receiver; these echoes are…”
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Sperm whale tracking in the Bahamas: One hydrophone, three dimensions
Published in The Journal of the Acoustical Society of America (01-11-2007)“…A passive acoustic localization method for tracking the movement of a clicking sperm whale in three dimensions using data from just one hydrophone is…”
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Classification of beaked whale and dolphin clicks measured by environmental acoustic recording system buoys in the northern Gulf of Mexico
Published in The Journal of the Acoustical Society of America (01-09-2015)“…The Littoral Acoustic Demonstration Center (LADC) has used its Environmental Acoustic Recording System (EARS) buoys to record sperm and beaked whales and…”
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Identification of individual beaked whales in the northern Gulf of Mexico
Published in The Journal of the Acoustical Society of America (01-11-2013)“…Recent Littoral Acoustic Demonstration Center (LADC) multi-mooring Environmental Acoustic Recording System (EARS) data from the northern Gulf of Mexico are…”
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Prospects for short-term and long-term passive acoustic monitoring of environmental change impact on marine mammals
Published in The Journal of the Acoustical Society of America (01-11-2013)“…The Littoral Acoustic Demonstration Center, LADC, a consortium of scientists from four Gulf state universities and the U.S. Navy, was begun in 2001 to study…”
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Using acoustic cue statistics in matrix population models to study short-term and long-term marine mammal population dynamics in the northern Gulf of Mexico
Published in The Journal of the Acoustical Society of America (01-04-2011)“…Acoustics is emerging as a viable tool for determining population trends of deep diving marine mammals in addition to conventional transect-line visual…”
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Complementary techniques for robust acoustic identification of individual sperm and beaked whales
Published in The Journal of the Acoustical Society of America (01-04-2011)“…Properties of individual clicks and characteristics of click trains provide clues for the passive acoustic identification of individual sperm whales via…”
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Integrating techniques for identifying individual sperm whales acoustically
Published in The Journal of the Acoustical Society of America (01-10-2010)“…Individual sperm whales may be identified acoustically from the properties of individual clicks or from the characteristics of their click trains. Thus far,…”
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Passive acoustic monitoring to assess marine mammal population trends in vicinity of the Deepwater Horizon oil spill
Published in The Journal of the Acoustical Society of America (01-10-2010)“…The area near the Deepwater Horizon incident was abundant with a variety of marine mammals, including endangered sperm whales and beaked whales. Our group, the…”
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