We tagged 40 white sharks this past fall along the coast of Northern California between Tomales Bay and Ano Nuevo Island.
The tag that we recovered from the juvenile white shark released by the Monterey Bay Aquarium on January 16 shows that he high-tailed it west from the 50°F waters of Monterey Bay to warmer waters
Early Sunday morning we got our first hit from the satellite tag we attached to the juvenile white shark before releasing it from the Monterey Bay Aquarium on January 16.
It is now the 4th morning since the tag released from the juvenile white shark. We are getting plenty of satellite hits as the tag continues east.
Five days after the satellite tag released from the white shark, the tag has traveled another 19 miles east and seems to be holding a steady course.
This was a race of a different sort: chasing after a small tag in a big ocean as it was heading out to sea.
The white shark tag has returned to Monterey. After a tricky U-turn, the tag started drifting offshore and we feared we might lose it.
Here is the entire course of the drifting white shark tag after it released from the animal and floated to the surface.
The guys from the white shark team -- Kevin Weng (left) and Sal Jorgensen (right) -- are busy working up the data retrieved from the juvenile white shark's tag, which was scooped out of the ocean
The juvenile white shark tag recorded temperature, depth, and light-levels every five seconds during the 90 days that it was deployed on the shark resulting in more than 4.5 million data points.
Russ Vetter, Leg II SHARK CRUISE. Today we're working a block due west of Los Angeles.
Monterey Bay Aquarium shark handlers transferred the 4-foot, 9-inch, 67-pound juvenile male shark from a holding pen off Malibu to the Outer Bay tank.
While the new juvenile white shark swims liesurely in the Monterey Bay Aquarium's massive Outer Bay tank, you can watch his cousin of about the same age trolling up and down the warm waters of
Sal Jorgensen, at Hopkins Marine Station, Pacific Grove, CA.-- Here's an updated plot of the juvenile white shark that John O'Sullivan and the team from the Monter
October. White shark tagging month at TOPP. It's notoriously a bad-weather month. No wonder that white shark researcher Sal Jorgenson and the rest of the white-shark tag team have made it past the Golden Gate Bridge only 13.5 out of 25 days so far. They're not too disappointed, though. They've attached 10 pop-up satellite tags to the sharks. Those tags automatically release from the shark after a pre-progammed time.....anywhere from 30 days to a year. Our star white shark, Omoo, wore a pop-up tag for a year, and that's his track that you see on TOPP.org's home page.
Those Farallones winds. They often put a crimp in the best-laid plans. And they did so yesterday, as they have for half the days this month. The shark tag team assembled at the Marina Green at 6 a.m., then sailed all the way out to the Farallon Islands, which takes a couple of hours. The winds kicked up more than forecast. Anything above 15 knots makes it too difficult and dangerous to tag the sharks. The shark taggers lower a small boat from the back of the vessel pictured below, and does the tagging from the small boat.
A good day yesterday. Some female white sharks showed up. Since the white shark tag team finished putting all the pop-up tags on the sharks, says white shark researcher Sal Jorgensen, they attached two acoustic tags to two females. Here's how it works: The researchers drop a video camera off the side of the small boat they use as their tagging platform. They use a seal decoy to attract the sharks to the boat. When the sharks swim by, they attach a tag just beneath their thick, sandpapery skin beside the dorsal fin. Some sharks sense the "stick", some don't.
Sal Jorgensen, Gulf of the Farallones. After three weeks of challenging weather, on Sunday we finally had one of those rare days in the Farallones with sunshine, clear water, and no wind. Luck was really with us -- in addition to the conditions being just right, we were fortunate to witness white sharks feeding. In the Fall, thousands of elephant seals and sea lions haul out on the rocky shore of the Farallon Islands and white sharks gather here to patrol the surrounding waters for their next meal.
Don Kohrs at Hopkins Marine Station. While Charles Gardner was taking a walk with his wife, he stumbled across one of the pop-up satellite tags -- #06A0555 -- that Sal Jorgensen attached to a white shark last year near the Farallon Islands. Here's how Charles tells the story:
Remember that baby white shark that was outfitted with two satellite tags and released on July 17? For a long time, it mosied around Santa Monica, Long Beach and made its way to San Diego, then made a bee-line, uh, shark-line, for Mexico. On Monday, it was halfway down Baja California. Sal Jorgensen and Mike Castleton at Hopkins Marine Station put this track together.
Join the first White Shark Webcast at noon, Pacific time, this Friday, Nov. 16. White shark researcher Sal Jorgensen, Monterey Bay Aquarium exhibit curator John O'Sullivan and aquarium storyteller Ken Peterson will answer all your shark questions.
You'll also learn about the dangers that white sharks face in the ocean, and what the aquarium is doing to help.
They'll start with a live audio slide show that features the young white shark who's living in the aquarium's Outer Bay Exhibit, and then open the Webcast to your questions.
Jane Stevens at TOPP.org. Allow me to brag a bit....our web site was among the top winners in TheScientist.com Laboratory Web Site and Video Awards. Out of 60 entries, six sites took honors. TOPP.org received the “Best of the Web” for three of the seven Judge’s Choice awards, with four lab sites receiving one each of the remaining judges’ votes.
Jane Stevens in Berkeley, CA. Sometimes reporters do stupid things. Take Rodney Hartman, for example. He's a reporter with The Star, one of 14 newspapers owned by Independent News & Media in South Africa. He wrote a story about a series of shark attacks that occured 50 years ago. Here's a PDF that Submerge Magazine put on its site.
Jane Stevens, at Hopkins Marine Station, Pacific Grove, CA - In case you missed it, the white shark at the Monterey Bay Aquarium now lives in the Pacific Ocean again. He swam back into the Pacific yesterday at dawn, and the moment was caught by the aquarium's Tyson Rininger. The shark ended up in the aquarium after entangling in a fisherman's net on August 4, 2007. The fisherman alerted aquarium staff, who put him in a large ocean pen of Malibu, where he showed that he was healthy, and then put him on display at the aquarium on August 28.
Jane Stevens at Hopkins Marine Station, Pacific Grove, CA - Faster than a speeding squid, the Monterey Bay Aquarium's young white shark blasted south when he was released on Feb. 5. In just 44 days, he "made it safely past fishing grounds on the Pacific coast of California and the Baja Peninsula, rounded Cabo San Lucas and is heading toward the Mexican mainland," according to the Monterey Bay Aquarium.
Jane Stevens at Hopkins Marine Station, Pacific Grove, CA - In case you missed seeing this video of the baby white shark who was released from the Monterey Bay Aquarium, it's worth taking a look. He ate salmon steaks -- "restaurant quality" -- which were suspended from a pole by a thread. That diet helped him grow 13 inches in the six months he lived at the aquarium. Here's the link to the video.
Jane Stevens, in Berkeley, CA - Check out "Tagging of Pacific Predators" on KQED-TV's QUEST!
Recovering a device the size of a hand-held microphone from the open waters of the Pacific is no small feat, nor a routine task for TOPP shark taggers.more
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A race organizer of The Great Turtle Race.