default avatar
Welcome to the site! Login or Signup below.
Logout|My Dashboard


Font Size:
Default font size
Larger font size

Posted: Saturday, December 12, 2009 12:00 am

Roland, Tim and Leland Mounce caught their limit in sturgeon on a fishing trip to the Columbia River in Washington. Their last name was listed incorrectly in a Snapshot entry published Dec. 5 in Lodi Living.

Subscription Required

An online service is needed to view this article in its entirety. You need an online service to view this article in its entirety.

Have an online subscription?

Login now

Need an online subscription?



You must login to view the full content on this page.

Thank you for reading 20 free articles on our site. You can come back at the end of your 30-day period for another 20 free articles, or you can purchase a subscription at this time and continue to enjoy valuable local news and information. If you need help, please contact our office at 209-369-2761. You need an online service to view this article in its entirety.

Have an online subscription?

Login now

Need an online subscription?



Rules of Conduct

  • 1 Use your real name. You must register with your full first and last name before you can comment. (And don’t pretend you’re someone else.)
  • 2 Keep it clean. Please avoid obscene, vulgar, lewd, racist or sexually oriented language.
  • 3 Don’t threaten. Threats of harming another person will not be tolerated.
  • 4 Be truthful. Don't lie about anyone or anything. Don't post unsubstantiated allegations, rumors or gossip that could harm the reputation of a person, company or organization.
  • 5 Be nice. No racism, sexism or any sort of -ism that is degrading to another person.
  • 6 Stay on topic. Make sure your comments are about the story. Don’t insult each other.
  • 7 Tell us if the discussion is getting out of hand. Use the ‘Report’ link on each comment to let us know of abusive posts.
  • 8 Share what you know, and ask about what you don't.
  • 9 Don’t be a troll.
  • 10 Don’t reveal personal information about other commenters. You may reveal your own personal information, but we advise you not to do so.
  • 11 We reserve the right, at our discretion, to monitor, delete or choose not to post any comment. This may include removing or monitoring posts that we believe violate the spirit or letter of these rules, or that we otherwise determine at our discretion needs to be monitored, not posted, or deleted.

Welcome to the discussion.

Readers Choice Awards 2014


Popular Stories

Send Us Your Snapshots!

Could the humble brine shrimp, a few millimeters in length, be partly responsible for the large-scale motion of the ocean?

That’s the finding from a pair of Caltech researchers, who used lasers to herd brine shrimp around a tank and track their effects on the water’s movement. The results, published in the journal Physics of Fluids, show that ocean currents may be a function not only of large-scale physical phenomena like wind and tides, but also of living things.

Study co-author John Dabiri, a Caltech fluid dynamicist, latched on to the idea a few years ago while studying how jellyfish move. He noticed something strange: As the jellyfish swam, they appeared to be carrying a lot of water with them.

Dabiri wondered if the same was true of smaller animals that fill the world’s oceans, including krill and copapods. He decided to study brine shrimp, perhaps best known in popular culture from the grow-your-own-sea-monkey kits. (Sea monkeys are a brine shrimp hybrid not found in nature; the scientists studied a species known as Artemia salina.)

The tiny creatures, only a few millimeters long, are sensitive to light; they rise up during the night to feed on phytoplankton and sink back into the darker depths during the day.

Dabiri and graduate student Monica Wilhelmus wondered if these dramatic vertical migrations — in some cases, hundreds of meters — could be affecting the mixing of the water. But it’s hard to track brine shrimp movements in their natural environment because, unlike the population of jellyfish studied earlier, it’s hard to figure out where the tiny animals will be at any given time.

“We spent a lot of time scratching our heads trying to figure out a good way to study these animals and the role that they play,” Dabiri said.

But the researchers realized they could actually test the animals in the lab — by controlling their movements with light.

Brine shrimp are sensitive to certain wavelengths of light, which the researchers used to guide the animals’ movements. They filled a tank with water and moved a blue laser up through the liquid, which the brine shrimp followed. They shone a green laser in the middle of the tank to keep the brine shrimp away from the edges.

Then they used a red laser sheet to track the water movements, because the brine shrimp don’t seem to notice that particular color. The red light reflected off small silver-coated beads that were added to the water and revealed how the water was flowing.

“It’s almost a laser light show,” Dabiri said. “Those particles light up like a starry night.”

The scientists found that, although an individual shrimp couldn’t move much water very far, together they had a powerful effect, particularly when they were swimming near one another.

“There’s this effect where the whole is greater than the sum of its parts, in terms of how they interact,” Dabiri said.

The collective movements of tiny swimming animals such as brine shrimp could be contributing an estimated 1 trillion watts of power to the ocean, Dabiri said — comparable to the combined effect from the winds and tides, which contribute an estimated 2 trillion watts.


Skepticism remains from physical oceanographers, who would have to take this new and relatively unknown phenomenon into account when constructing models of ocean dynamics, Dabiri said.

“How do they simulate, in computer models, things that are very small but have a very big effect?” Dabiri said. “I think until they’re convinced that there’s something that needs to be simulated, they would rather not have to answer that question.”


Dabiri said he hoped to someday study these effects in the ocean itself — perhaps by taking a laser system out to sea and watching how the animals move in their natural environment.

He doesn’t have any plans to start altering the world’s currents, though.

“We want to be mindful of not getting too far ahead of ourselves, in toying with the real ocean,” Dabiri said.


©2014 Los Angeles Times

Visit the Los Angeles Times at www.latimes.com

Distributed by MCT Information Services


Topics: t000017605,t000017597,t000017596,t000003086


What would you like to see in Lodi's parks?

Lodi's Parks, Recreation and Cultural Services Department is hosting a public workshop at 7 p.m. at Hutchins Street Square to find out how it can better meet the needs of the community. What would you like to see in Lodi's parks?

Total Votes: 202


Your News

News for the community, by the community.

Featured Events

Mailing List

Subscribe to a mailing list to have daily news sent directly to your inbox.

  • Breaking News

    Would you like to receive breaking news alerts? Sign up now!

  • News Updates

    Would you like to receive our daily news headlines? Sign up now!

  • Sports Updates

    Would you like to receive our daily sports headlines? Sign up now!

Manage Your Lists