Now showing items 1-5 of 5

    • Delphinid echolocation click detection probability on near-seafloor sensors 

      Frasier, Kaitlin E.; Wiggins, Sean M.; Harris, Danielle; Marques, Tiago A.; Thomas, Len; Hildebrand, John A. (2016-09) - Journal article
      The probability of detecting echolocating delphinids on a near-seafloor sensor was estimated using two Monte Carlo simulation methods. One method estimated the probability of detecting a single click (cue counting); the ...
    • Description and seasonal detection of two potential whale calls recorded in the Indian Ocean 

      Sousa, Andreia G; Harris, Danielle (2015-09) - Journal article
      Unidentified acoustic signals are recorded by hydrophones placed in the world's oceans. Some of these sounds are suspected to originate from marine mammals. In this study, two acoustic signals recorded by two arrays at ...
    • Lloyd's mirror effect in fin whale calls and its use to infer the depth of vocalizing animals 

      Pereira, Andreia; Harris, Danielle; Tyack, Peter; Matias, Luis (Acoustical Society of America, 2017) - Conference item
      The ocean acoustic Lloyd's Mirror effect (LME) is produced by interference between the direct-path and the sea surface phase-reversed reflection of a sound as observed at a receiver. It results in a frequencydependent ...
    • Passive acoustic monitoring of beaked whale densities in the Gulf of Mexico 

      Hildebrand, John; Baumann-Pickering, Simone; Frasier, Kaitlin; Trickey, Jennifer; Merkens, Karlina; Wiggins, Sean; McDonald, Mark; Garrison, Lance; Harris, Danielle; Marques, Tiago A.; Thomas, Len (2015-11-12) - Journal article
      Beaked whales are deep diving elusive animals, difficult to census with conventional visual surveys. Methods are presented for the density estimation of beaked whales, using passive acoustic monitoring data collected at ...
    • Spatio-temporal variation in click production rates of beaked whales : implications for passive acoustic density estimation 

      Warren, Victoria E.; Marques, Tiago A.; Harris, Danielle; Thomas, Len; Tyack, Peter L.; Aguilar de Soto, Natacha; Hickmott, Leigh S.; Johnson, Mark P. (2017-03) - Journal article
      Passive acoustic monitoring has become an increasingly prevalent tool for estimating density of marine mammals, such as beaked whales, which vocalize often but are difficult to survey visually. Counts of acoustic cues ...