{"id":27063,"date":"2023-02-13t19:37:58","date_gmt":"2023-02-13t19:37:58","guid":{"rendered":"http:\/\/dev.planetforward.com\/2023\/02\/13\/what-will-our-future-sound-like-how-marine-ecologists-are-confronting-ocean-sound-pollution\/"},"modified":"2023-03-15t20:37:36","modified_gmt":"2023-03-15t20:37:36","slug":"marine-ecologists-sound-pollution","status":"publish","type":"post","link":"\/\/www.getitdoneaz.com\/story\/marine-ecologists-sound-pollution\/","title":{"rendered":"what will our future sound like? how marine ecologists are confronting ocean sound pollution"},"content":{"rendered":"\n
what might an untrained ear miss when it submerges itself beneath the ocean waves? there is usually the pan-frying sound of snapping shrimp. other species are communicating with each other underwater as well, though we humans are only just beginning to detect them and unravel their meaning. humpback whales communicate with potential mates with low-frequency songs that can be heard from thousands of miles away, marine biologists say.<\/p>\n\n\n\n
on the lower end of the hearing spectrum, male atlantic haddock circle their territory for hours, trying to attract mates using distinctive \u201cknocks.”<\/a><\/p>\n\n\n\n these sounds paint a picture of a biodiverse and teeming marine ecosystem. but humans are destroying it.<\/p>\n\n\n\n heather spence, ph.d., a composer and marine science advisor for the u.s. department of energy, has dedicated her life to researching the effects of human-caused noise pollution on marine life. through sound, she says, a trained specialist can determine the health of a marine ecosystem.<\/p>\n\n\n\n \u201c[the sounds] transport you because you’ve got all of these textures that have layers of sound going on, like the snapping shrimp,\u201d said spence in a phone call. \u201cbut if you listen more, you can hear some subtle sounds from fish and spiny lobsters.\u201d<\/p>\n\n\n\n through her acoustic monitoring surveys in cancun, mexico, spence found that recreational boaters would overpower or \u201cmask\u201d the animals\u2019 sounds when they were present.<\/p>\n\n\n\n \u201cjust masking can make it so they can’t hear each other or communicate an alarm signal, or they can’t find each other to mate,\u201d spence said. \u201cso, it can be a pretty major deal.”<\/p>\n\n\n human-produced noise pollution of the ocean goes far beyond recreational boating. there are also the shipping vessels that connect a complex global transoceanic network, which supports 80% of global trade, according to the united nations.<\/a><\/p>\n\n\n\n experts say vessel noise can be heard for miles. it causes \u201cmeasurable stress,\u201d and it disrupts the ability of animals to evaluate shelter for safety. its low frequency makes such noise especially detrimental, falling precisely in the range in which many marine organisms hear and communicate, according to dave hudson, ph.d.<\/p>\n\n\n\n hudson is the founder of remote ecologist, a nonprofit in connecticut focusing on aquatic system stressors. in january, he conducted a study<\/a> about the effects of vessel noise and sonar on american lobster and blue crab. these two animals support the livelihoods of thousands of commercial fishermen in new england.<\/p>\n\n\n\n hudson said that his study showed that boat noise induces stress in blue crabs, reducing their competitiveness for food and causing them to exhibit defensive behaviors.<\/p>\n\n\n\n \u201cso extrapolation of work that we did on these two crustaceans probably tells me a lot about how other crabs in the area would be affected,” said hudson in a phone call. \u201cother lobsters would be affected in places like europe and australia and others throughout the caribbean with spiny lobsters.\u201d<\/p>\n\n\n\n subjecting an animal to boat noise can hurt their ability to survive. a wildlife conservation society<\/a> study looking at the increased presence of whales in the new york bay said that sounds could interfere with migration, mating, and prey detection.<\/p>\n\n\n\n the ambient noise level in the oceans has increased by as much as 12 decibels over the last 30 years, according to a source hudson cited in his paper. noise control site iacacoustics<\/a> says that this increase is the equivalent of someone breathing in a person\u2019s ear.<\/p>\n\n\n\n to address these problems, more research is needed on how noise impacts marine life, as indicated by a plethora of studies, including hudson\u2019s and spence\u2019s. both scientists said that the biggest obstacle is money, <\/p>\n\n\n\n \u201ci do think that the reason why it is or is not in connecticut is more about funding,\u201d hudson said. \u201cwe’ve thrown around some ideas to try some in situ work in connecticut, but it just hasn\u2019t been funded yet.”<\/p>\n\n\n\nthe issue of sound<\/h2>\n\n\n\n
funding a response<\/h2>\n\n\n\n