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SPOTLIGHT FIGURE 18.24 Human-made sound is affecting marine organisms. Animals use sound to find food and mates, to avoid predators, to orient to their surroundings, and to communicate. Anthropogenic noise has multiplied a hundredfold since 1960. The consequences are as yet unknown. 260 Ol-prospecting air gunn. ightning 250 Ol-prospecting air guns Sounds above -170 decibels (dB) can injure marine animals THE COST OF NOISE INJURY Intense noises, such as air gun blasts that ricochet off the seafioor, drown out animal sounds and may cause hearing loss and other damage. A right whale calling to another faces the twin 200 challenges-intonsity and frequency-that noise poses to many marine animals. 192 Cargo ship 170 Right whale 150 Sounds between 120-170 dB can disturb animal behavior. 105 Cod Right whale 100 95 Submarine 80 Wind, rain 50 Intensity The higher the decibel level, the more likely a sound is to harm animals. A few Seafloor O da sources are shown here. Natural Noises Storms and earthquakes are intense sources. But the animals themselves add to the din-even cod, which grunt a lot in spawning season. Lightning Wind Cargo ship INTERFERENCE Sounds close in frequency interfere, canceling each other A ship's propeller miles away can mask a right whale's call. Right whale Submarine Cod ART NOT TO SCALE Right whale Cargo ship Lightning Air guns Submarine Wind Frequency The lower the sound frequency in hertz (Hz), the longer the wavelength. Whale call frequencies overlap the ranges of many other sources. Rain Code .3B LOW ULTRA-LOW MIDDLE HIGH OHz 10 100 1,000 10.000 100.000

SPOTLIGHT FIGURE 18.24 Human-made sound is affecting marine organisms. Animals use sound to find food and mates, to avoid predators, to orient to their surroundings, and to communicate. Anthropogenic noise has multiplied a hundredfold since 1960. The consequences are as yet unknown. 260 Ol-prospecting air gunn. ightning 250 Ol-prospecting air guns Sounds above -170 decibels (dB) can injure marine animals THE COST OF NOISE INJURY Intense noises, such as air gun blasts that ricochet off the seafioor, drown out animal sounds and may cause hearing loss and other damage. A right whale calling to another faces the twin 200 challenges-intonsity and frequency-that noise poses to many marine animals. 192 Cargo ship 170 Right whale 150 Sounds between 120-170 dB can disturb animal behavior. 105 Cod Right whale 100 95 Submarine 80 Wind, rain 50 Intensity The higher the decibel level, the more likely a sound is to harm animals. A few Seafloor O da sources are shown here. Natural Noises Storms and earthquakes are intense sources. But the animals themselves add to the din-even cod, which grunt a lot in spawning season. Lightning Wind Cargo ship INTERFERENCE Sounds close in frequency interfere, canceling each other A ship's propeller miles away can mask a right whale's call. Right whale Submarine Cod ART NOT TO SCALE Right whale Cargo ship Lightning Air guns Submarine Wind Frequency The lower the sound frequency in hertz (Hz), the longer the wavelength. Whale call frequencies overlap the ranges of many other sources. Rain Code .3B LOW ULTRA-LOW MIDDLE HIGH OHz 10 100 1,000 10.000 100.000

Applications and Investigations in Earth Science (9th Edition)
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
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What are the most powerful sources of anthropogenic sound in the ocean?

SPOTLIGHT FIGURE 18.24 Human-made sound is affecting marine organisms. Animals use sound to find food and mates, to avoid predators, to orient to their surroundings, and to communicate. Anthropogenic noise has multiplied a hundredfold since 1960. The consequences are as yet unknown. 260 Ol-prospecting air gunn. ightning 250 Ol-prospecting air guns Sounds above -170 decibels (dB) can injure marine animals THE COST OF NOISE INJURY Intense noises, such as air gun blasts that ricochet off the seafioor, drown out animal sounds and may cause hearing loss and other damage. A right whale calling to another faces the twin 200 challenges-intonsity and frequency-that noise poses to many marine animals. 192 Cargo ship 170 Right whale 150 Sounds between 120-170 dB can disturb animal behavior. 105 Cod Right whale 100 95 Submarine 80 Wind, rain 50 Intensity The higher the decibel level, the more likely a sound is to harm animals. A few Seafloor O da sources are shown here.
Transcribed Image Text:SPOTLIGHT FIGURE 18.24 Human-made sound is affecting marine organisms. Animals use sound to find food and mates, to avoid predators, to orient to their surroundings, and to communicate. Anthropogenic noise has multiplied a hundredfold since 1960. The consequences are as yet unknown. 260 Ol-prospecting air gunn. ightning 250 Ol-prospecting air guns Sounds above -170 decibels (dB) can injure marine animals THE COST OF NOISE INJURY Intense noises, such as air gun blasts that ricochet off the seafioor, drown out animal sounds and may cause hearing loss and other damage. A right whale calling to another faces the twin 200 challenges-intonsity and frequency-that noise poses to many marine animals. 192 Cargo ship 170 Right whale 150 Sounds between 120-170 dB can disturb animal behavior. 105 Cod Right whale 100 95 Submarine 80 Wind, rain 50 Intensity The higher the decibel level, the more likely a sound is to harm animals. A few Seafloor O da sources are shown here.
Natural Noises Storms and earthquakes are intense sources. But the animals themselves add to the din-even cod, which grunt a lot in spawning season. Lightning Wind Cargo ship INTERFERENCE Sounds close in frequency interfere, canceling each other A ship's propeller miles away can mask a right whale's call. Right whale Submarine Cod ART NOT TO SCALE Right whale Cargo ship Lightning Air guns Submarine Wind Frequency The lower the sound frequency in hertz (Hz), the longer the wavelength. Whale call frequencies overlap the ranges of many other sources. Rain Code .3B LOW ULTRA-LOW MIDDLE HIGH OHz 10 100 1,000 10.000 100.000
Transcribed Image Text:Natural Noises Storms and earthquakes are intense sources. But the animals themselves add to the din-even cod, which grunt a lot in spawning season. Lightning Wind Cargo ship INTERFERENCE Sounds close in frequency interfere, canceling each other A ship's propeller miles away can mask a right whale's call. Right whale Submarine Cod ART NOT TO SCALE Right whale Cargo ship Lightning Air guns Submarine Wind Frequency The lower the sound frequency in hertz (Hz), the longer the wavelength. Whale call frequencies overlap the ranges of many other sources. Rain Code .3B LOW ULTRA-LOW MIDDLE HIGH OHz 10 100 1,000 10.000 100.000
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