Ottawa pizzeria places among top 20 deep-dish pizzas in the world at international competition
An Ottawa pizzeria is being recognized as one of the top 20 deep-dish pizzas in the world.
As oceans around the world get warmer due to climate change, snapping shrimp are becoming louder than usual, creating “far-reaching implications” for various marine ecosystems, a new study has found.
Researchers at the U.S.-based Woods Hole Oceanographic Institution (WHOI) say this study is the first of its kind that looked into the relationship between rising temperatures and the frequency and volume of the sound produced by two snapping shrimp species.
The paper published Thursday in Frontiers in Marine Science was able to prove a clear relationship between the two and concluded that rising temperatures increase the sound of snapping shrimp.
Snapping shrimp are known to be one of the loudest marine animals and are widely found throughout tropical and temperate seas. Their “snapping” is a sound produced when they open and close their claw quickly, as a way to stun their prey, distract predators and even communicate with each other, according to a website by the University of Rhode Island’s Graduate School of Oceanography.
Researchers at the WHOI describe the sound as a “pervasive crackling noise that sounds like bacon frying.”
“These shrimp are the most ubiquitous sound producer in the ocean, and now we have evidence that temperature has a huge impact on their behaviour and the overall soundscape,” Ashlee Lillis, the paper’s co-author, said in a release.
“That’s relevant to everything from migrating whales to larvae trying to use the soundscape or humans who use the sea for extractive or military purposes.”
Fish finders and ship sonar are both affected by the constant popping noises created by snapping shrimp because their high volume covers such a wide acoustic spectrum, researchers say. According to the study, whales and dolphins may also use the sound of snapping shrimp to help them find their way down the shore.
Additionally, a variety of soundscapes are known to draw fish, shellfish, and coral larvae to suitable settling areas.
Lilis examined recordings of snapping shrimp from an oyster reef off the coast of North Carolina and discovered that for every Celsius degree increase in temperature, there was an increase of one to two decibels as well as a 15 to 60 per cent increase in snapping frequency.
When tested in a controlled environment, it was discovered that the snap frequency doubled with water temperatures between 20C and 30C, with some variations depending on the season or the shrimps' social grouping.
It is still unclear if shrimp will eventually adjust or how the increased snapping will affect their physiology or the environment in the long run because the experiments only mimicked the impacts of a brief heat wave, researchers say.
“Climate change is impacting the marine soundscape in fundamental ways,” T. Aran Mooney, the study’s co-author, said in a release.
“Warming waters can influence how animals are physically able to communicate and use sound to reproduce and attract mates. We don’t yet know what happens to the ecosystem when background noise levels are higher, but there are far-reaching implications.”
An Ottawa pizzeria is being recognized as one of the top 20 deep-dish pizzas in the world.
Dozens of Ontarians are expressing frustration in the province’s health-care system after their family doctors either dropped them as patients or threatened to after they sought urgent care elsewhere.
Amazon's paid subscription service provides free delivery for online shopping across Canada except for remote locations, the company said in an email. While customers in Iqaluit qualify for the offer, all other communities in Nunavut are excluded.
Police are searching for a suspect in a homicide investigation after a man was slashed in downtown Toronto on Sunday.
This Mother's Day Weekend, take a look at some of the most emotional movies inspired by moms.
Russia’s President Vladimir Putin began a Cabinet shakeup on Sunday, proposing the replacement of Sergei Shoigu as defence minister as he begins his fifth term in office.
Health Canada announced various product recalls this week, including electric adapters, armchairs, cannabis edibles and vehicle components.
The fire burning near Fort McMurray grew from 25 hectares to 5,500 hectares over the weekend.
There were some scary moments for several people on a northern Ontario highway caught on video Thursday after a chain reaction following a truck fire.
A family of fifth generation farmers from Ituna, Sask. are trying to find answers after discovering several strange objects lying on their land.
A Listowel, Ont. man, drafted by the Hamilton Tigercats last week, is also getting looks from the NFL, despite only playing 27 games of football in his life.
The threat of zebra mussels has prompted the federal government to temporarily ban watercraft from a Manitoba lake popular with tourists.
A small Ajax dessert shop that recently received a glowing review from celebrity food critic Keith Lee is being forced to move after a zoning complaint was made following the social media influencer’s visit last month.
The Canada Science and Technology Museum is inviting visitors to explore their poop. A new exhibition opens at the Ottawa museum on Friday called, 'Oh Crap! Rethinking human waste.'
The Regina Police Service says it is the first in Saskatchewan and possibly Canada to implement new technology in its detention facility that will offer real-time monitoring of detainees’ vital health metrics.
Just as she had feared, a restaurant owner from eastern Quebec who visited Montreal had her SUV stolen, but says it was all thanks to the kindness of strangers on the internet — not the police — that she got it back.
The stakes have been set for a bet between Vancouver and Edmonton's mayors on who will win Round 2 of the Stanley Cup playoffs.
A grieving mother is hosting a helmet drive in the hopes of protecting children on Manitoba First Nations from a similar tragedy that killed her daughter.