Mercury contamination of oceans is prevalent worldwide and methylmercury concentrations in the mesopelagic zone (200–1000 m) are increasing more rapidly than in surface waters. Yet mercury...
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Noise-induced temporary hearing threshold shift (TTS) was studied in a harbor porpoise exposed to impulsive sounds of scaled-down airguns while both stationary and free-swimming for up...
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The long-term goals of this research effort are to improve the Navy’s passive underwater acoustic monitoring of marine mammal populations. A major focus in this project...
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The number of marine watercraft is on the rise—from private boats in coastal areas to commercial ships crossing oceans. A concomitant increase in underwater noise has...
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Potential sources of available marine mmal observer (MMO) data were identified, and a questionnaire was distributed asking for information about the data held. The responses were...
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The primary goal of this research was to provide a proof of concept for employing modeling techniques to provide reliable hearing estimates for species thought to...
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Fasting animals must ration stored reserves appropriately for metabolic demands. Animals that experience fasting concomitant with other metabolically demanding activities are presented with conflicting demands of...
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1. Identification of foraging behaviour and the ability to assess foraging success is critical to understanding individual and between-species variation in habitat use and foraging ecology....
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Underwater noise, whether of natural or anthropogenic origin, has the ability to interfere with the way in which marine mammals receive acoustic signals (i.e., for communication,...
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Akoostix continues to experiment with flexible, low-processing-load marine mammal detection options suitable for implementation in both workstations and low-power embedded systems. Building on previous work, additional...
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