Charleston FYI

Menu
  • What’s Trending
  • Featured
  • Eat & Drink
  • News
  • Summerville
  • Guest Columns

sharks

Featured

Using Lasers to Determine the Age of Sharks? Sounds Futuristic, but the Technology is Close to Possible.

Featured Image: Post and Courier

Michelle Passerotti, a Charleston resident and University of South Carolina researcher, is working on a technology that could zap a shark (a harmless technique even though it sounds abrasive) in order to measure the age of sharks and red snappers. This would be a critical step in sustaining these valuable species. While many fear sharks or worry about them when taking a dip in the water at the beach, sharks are proven to be critical to the well-being of ecosystems and are essential to keeping other species healthy.

Passerotti could be as little as a year away from this massive breakthrough. The current technique of aging sharks and snappers is cutting into a bone and counting the growth rings, as you would for a tree. Not only is this technique not shown to be the most accurate, but it can also take up to two days to come up with the age. This laser technique could come up with an age within a minute and automatically load it into a database.

“It’s going to save a ton of money and a ton of time, freeing up fish scientists to spend more time on something other than counting (bone) ring bands,” Passerotti said.

The snapper-grouper species overall are estimated to be worth more $15 million per year to the Southeast region. A decade ago, people believed red snapper stock was depleted and regulators enforced tight catch and season limits. Federal regulators are allowing more catch while struggling to improve counts which are considered to be inaccurate by many. This laser technique would aid in creating an accurate count of the stock with ages as well.

This is not the first time technology has been developed or attempted, but Passerotti is the first to bring it to the Southeast. A region which would widely benefit from it. Both species are essential to our waters and are indispensable to our coastlines.

  • Share
  • Tweet
  • Email

New In Charleston

Meet The Three Great White Sharks Hanging Out Off The Coast Of South Carolina

Image Source: ABC.Net

Have you heard the news? South Carolina just got three new residents. Gray Lady, Jefferson, and Hal each made the long journey from the Northeast to the great state of South Carolina. Around the New Year, these three great white sharks made their way to the South Carolina coast, making it their temporary home.

Ocearch, a nonprofit organization leading research efforts around great white sharks and other large marine species, tracked each of them as they made their way through the dark depths of the ocean.

The waters southeast of Charleston, South Carolina are buzzing with white sharks right now. Three have pinged there in the last week @MissCostaShark, WhiteSharkHal and @GreyLadyShark pic.twitter.com/wcnDOPxv3K

— OCEARCH (@OCEARCH) January 3, 2019

After leaving the Northeast region, all three great whites made their way down to Florida before heading back up north and taking up temporary residence in South Carolina. Grey Lady, originally from the Nantucket area, and Jefferson, hailing from the waters of Nova Scotia, are right below the Charleston coast. However, Hal, also joining us from Nova Scotia, traveled farther North for the New Year, hitting up Myrtle Beach.

Ocearch has tagged over 300 marine animals during their expeditions allowing you to watch the journey each of them makes as they travel the world.

While Grey Lady, Jefferson, and Hal are the only three tagged great whites off the coast of South Carolina, there are many other sharks hanging out off the coast, including three tiger sharks named Jax, Georgia, and Miss Michalove, and Norris, the hammerhead shark.

Additionally, with the recent arrival of our three new residents, we can bet there are more great whites coming into the area that aren’t tagged.

You can track the journey of all the tagged animals using Ocearch’s tracking map or keep up with each individual shark by following them on Twitter: @WhiteSharkHal, @GreyLadyShark, and @MissCostaShark.

Sometimes you can even catch a conversation between the sharks:

Hey @WhiteSharkHal you sound stressed out. I’m near Charleston too and know of a fabulous sushi spot. Let’s go…my treat! https://t.co/TkPtkmwciw

— Miss Costa (@MissCostaShark) January 2, 2019

 

  • Share
  • Tweet
  • Email

© 2023 Charleston FYI. All Rights Reserved.

  • Home
  • What’s Trending
  • Featured
  • Eat & Drink
  • News
  • Summerville
  • Guest Columns