recording
DESCRIPTION
Recording. Some instruments used:. The hydrophone and headphones were both plugged into a cassette tape recorder The hydrophone was submerged into water and then left under water for an hour, while recording The recordings were uploaded, segmented, and then made into spectrograms - PowerPoint PPT PresentationTRANSCRIPT
![Page 1: Recording](https://reader036.vdocuments.mx/reader036/viewer/2022081520/56814b02550346895db8158d/html5/thumbnails/1.jpg)
Recording1. The hydrophone and
headphones were both plugged into a cassette tape recorder2. The hydrophone was
submerged into water and then left under water for an hour,
while recording3. The recordings were uploaded,
segmented, and then made into spectrograms
4. Duplicated segments were filtered, and/or amplified (if
needed)
Some instruments used:
![Page 2: Recording](https://reader036.vdocuments.mx/reader036/viewer/2022081520/56814b02550346895db8158d/html5/thumbnails/2.jpg)
Results
![Page 3: Recording](https://reader036.vdocuments.mx/reader036/viewer/2022081520/56814b02550346895db8158d/html5/thumbnails/3.jpg)
Anthropogenic and Bioacoustic sounds
Anthropogenic & Bioacoustic Recordings
0
5
10
15
20
25
30
Day
# of
sou
nds
Anthropogenic sounds
biological sounds
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Spectrogram of the Striped Cusk Eel
![Page 5: Recording](https://reader036.vdocuments.mx/reader036/viewer/2022081520/56814b02550346895db8158d/html5/thumbnails/5.jpg)
Spectrogram of Oyster Toad Fish
![Page 6: Recording](https://reader036.vdocuments.mx/reader036/viewer/2022081520/56814b02550346895db8158d/html5/thumbnails/6.jpg)
Circle Line
Dock
Water taxi
![Page 7: Recording](https://reader036.vdocuments.mx/reader036/viewer/2022081520/56814b02550346895db8158d/html5/thumbnails/7.jpg)
Motor Boat
Creak
Jet-Ski
![Page 8: Recording](https://reader036.vdocuments.mx/reader036/viewer/2022081520/56814b02550346895db8158d/html5/thumbnails/8.jpg)
Ferry
Zephyr
Fire boat
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Discussion
Frequencies of Sounds in the Hudson
0
500
1000
1500
2000
2500
3000
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Conclusion
• Many anthropogenic sounds and bioacoustics sound have been recorded as a range of frequency, instead of at one particular pitch
• Higher amplitudes can not only confuse fish, but even change their behavior
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References • Clark, April 10th, 2000 “underwater noise”• Costa, Hayes, December 13th 2001, “underwater acoustics pollution”• Dr. Rountree- Fish Ecology- Listening to Fish• Fay Edds –Walton, October”, 2000, “Frequency response of auditory brown
stem units and toadfish (opsanas tan)• Haynes,frisch- “an illustrated guide to Hudson River Fish- March 1993• Parker-MC Graw Hill Dictionary of scientific and technical terms 1994• Poland fish, Marie. “the production of underwater sound by the northern
seahorse, hippocampus hudsonias. Copeia, vol. 1953, No.2 (May,29,1953) pp 95-99
• Stanne, Panetta,” The Hudson- an illustrated guide to the living river.(1996)• Wenz, G.M. 1962. “Acoustic Ambient Noise in the Ocean: Spectra and
Sources. Journal of the Acoustics Society of America”, 34,1936-1959
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Acknowledgements• Cathy Drew• J.T. Boehm
• Jedtsada Laucharoen• Alex Harding
• Chris Anderson• Dr. Sat
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Harlem Children Society
• Memorial Sloan Kettering Cancer Center• Mr. Edward Irwin (Freeport High School)
• Ms. Thompson ( Gregorio Luperon High School)
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And you for listening!
Thank you!