Great White......Folly Beach

[duckcrazed]

Mary Lee ate that boy diving 4KI a few years ago- don't think they won't eat you and don't think they don't swim up our rivers. Mary Lee pinged in the harbor, the Wando rived and the creek on Daniel Island just past the 526 bridge.


The shark trackers said it was an equipment error and she wasn't inshore- she also pinged at 4KI same time that boy got ate.

Mary Lee pinged "near" the Harbor, she might've even stuck her nose in...she definitely wasn't up the creek in Daniel Island. It wasn't equipment error (as in a malfunction), but routine error expected with that type of tag. For every location that gets reported an error class is assigned to those locations. They are coded 3,2,1,0,A,B,Z: a position class of 3 is an estimated error of <100 yards, an A is over 1 mile, B over 10 miles, and Z is a unbounded error, as in unusable.

The error is related to how long the sharks fin is out of the water and how many satellites it can connect to while the fin remains out of the water. It typically takes over a couple minutes to get a position fix of three (connected to 4 satellites). The folks running the website always correct pings to make them appear over water. In the case of the Wando River and Harbor pings, they were Z and B class pings and I asked them to remove them from the site as the data was unreliable, while leaving the ping at the entrance to the Harbor (class 1, error ~1,000 yards). Based on everything we know about white sharks, I highly doubt Mary Lee did more than stick her nose in the Harbor before heading on her way.

As far as the diving accident, the odds of the only tagged white shark in the ocean being the culprit is highly unlikely. My understanding was it was a diving accident, I heard that there may have been scavenging post-mortality, but that was never confirmed nor were any shark experts consulted to examine any wounds (As far as I know).

[Hogg]

She likes to feast at the Grillage.

[duckcrazed]

Obviously a lot of research is ongoing with white sharks in the Atlantic and elsewhere.
However, North Atlantic seal populations have been protected for really a short period of time thus the premise of a white shark increase.
All theoretical of course....
Duckcrazed..... Where are you?

There's been a good bit of debate about this in the research community, there are definitely more white sharks, however the increases that we have observed are more likely a shifting of behavior rather then a population explosion, the generation time on these animals (time it takes to mature and produce young) is too long (likely 20+ years) for their population to increase rapidly. The majority of white sharks were likely further offshore, and with the seal population expansion, they shifted feeding behavior to a more coastal movement pattern...that being said, their populations are also likely increasing with the protections enacted in the early 90's.

As far as the redfish, there's definitely evidence they eat those, but tagged whites are always on the move. We seem them detected off Mrytle Beach in the am and Edisto in the pm, GA the next day. They aren't really staying in one area to where they would deplete a food source like big reds. The only time they are in an area for a prolonged amount of time is when they find a whale carcass.

The problems we are seeing with reds have more to do with recruitment (survival of eggs post-spawn) and survival of young fish to the adult population. There is definitive evidence that despite a mostly catch and release fishery, a lot of mortality still occurs in young fish. There also seems to be some density interaction with sea trout, when sea trout numbers are high, redfish numbers are lower and vice versa...not sure whether it is predation or competition for resources.

[Swamp Rat]

I always enjoy your posts. Makes me feel smarter.

[Highstrung]

They give me talking points

But his collards now, shut your mouth..

[Sportin' Woodies]

Apparently when you photograph a redfish, u kill it.

[santee11]

Mary Lee pinged "near" the Harbor, she might've even stuck her nose in...she definitely wasn't up the creek in Daniel Island. It wasn't equipment error (as in a malfunction), but routine error expected with that type of tag. For every location that gets reported an error class is assigned to those locations. They are coded 3,2,1,0,A,B,Z: a position class of 3 is an estimated error of <100 yards, an A is over 1 mile, B over 10 miles, and Z is a unbounded error, as in unusable.

The error is related to how long the sharks fin is out of the water and how many satellites it can connect to while the fin remains out of the water. It typically takes over a couple minutes to get a position fix of three (connected to 4 satellites). The folks running the website always correct pings to make them appear over water. In the case of the Wando River and Harbor pings, they were Z and B class pings and I asked them to remove them from the site as the data was unreliable, while leaving the ping at the entrance to the Harbor (class 1, error ~1,000 yards). Based on everything we know about white sharks, I highly doubt Mary Lee did more than stick her nose in the Harbor before heading on her way.

As far as the diving accident, the odds of the only tagged white shark in the ocean being the culprit is highly unlikely. My understanding was it was a diving accident, I heard that there may have been scavenging post-mortality, but that was never confirmed nor were any shark experts consulted to examine any wounds (As far as I know).

We need to get Mary Lee a whip antenna so I can feel safer.

[Sportin' Woodies]

Y'all know that Paul Walker tagged Mary Lee don't you?

[Jozie & Me]

We need to get Mary Lee a whip antenna so I can feel safer.

With an orange flag!

[Tha Dick]

They give me talking points

But his collards now, shut your mouth..

Whatchu talk’n bout Willis..... Dem greens beez out of dis world!!!! Dayuum!!! Makes me want some for breakfast just thinking bout them

[Saltydog235]

There's been a good bit of debate about this in the research community, there are definitely more white sharks, however the increases that we have observed are more likely a shifting of behavior rather then a population explosion, the generation time on these animals (time it takes to mature and produce young) is too long (likely 20+ years) for their population to increase rapidly. The majority of white sharks were likely further offshore, and with the seal population expansion, they shifted feeding behavior to a more coastal movement pattern...that being said, their populations are also likely increasing with the protections enacted in the early 90's.

As far as the redfish, there's definitely evidence they eat those, but tagged whites are always on the move. We seem them detected off Mrytle Beach in the am and Edisto in the pm, GA the next day. They aren't really staying in one area to where they would deplete a food source like big reds. The only time they are in an area for a prolonged amount of time is when they find a whale carcass.

The problems we are seeing with reds have more to do with recruitment (survival of eggs post-spawn) and survival of young fish to the adult population. There is definitive evidence that despite a mostly catch and release fishery, a lot of mortality still occurs in young fish. There also seems to be some density interaction with sea trout, when sea trout numbers are high, redfish numbers are lower and vice versa...not sure whether it is predation or competition for resources.

Are you affiliated with the tagging program?

[Calibogue]

Are you affiliated with the tagging program?

Your local shark Yoda he is....

[duckcrazed]

They give me talking points

But his collards now, shut your mouth..

Speaking of which...we need to look at dates.

[duckcrazed]

Are you affiliated with the tagging program?

I don't have much skin in the white shark research, but all the tiger shark tags on the tracker were mine. Been on a few of the white shark expeditions though.

[Highstrung]

Heck yeah

[BOGSTER]

duckcrazed is a badass.

[duckcrazed]

781aa751e994839d8d80dd17ec810008.jpg

[Sportin' Woodies]

Did you ever have the privilege of working with Paul Walker?

[charlie horse]

Only Great White I care about..

[JABIII]

Three great white sharks welcomed the New Year off the South Carolina coast, where many others have likely gathered, experts say.

OCEARCH, a data-collecting nonprofit group that tracks sharks, tagged the great whites with GPS locators years ago.

OCEARCH was founded in 2007 and started tagging Atlantic sharks in 2012. The organization has tagged more than 30 sharks.

WYFF-TV
OCEARCH, R.Snow
Experts say great white sharks typically arrive off the South Carolina coast during the winter and stay until spring.

Experts say three of the tagged sharks, Miss Costa, Hal and Gray Lady, were all off the South Carolina coast by New Year's Eve.

Experts say three great whites pinging in the same location means there are likely many more in the area.

OCEARCH maintains Twitter accounts for each tagged and named shark. The Twitter accounts give tracking information about the great whites as well as factual information about sharks, but the accounts are also just for fun.

On Dec. 31, Miss Costa tweeted: “Excited for a rockin’ New Year’s Eve party Lowcountry style! I’m here off Edisto Beach, SC with the lovely GreyLadyShark herself. We’re gonna dance the night away!”

WhiteSharkHal tweeted on Jan. 2: “Ahh! Just went from Daytona Beach, Florida, to Charleston, South Carolina, looking for some peace and quiet, but there were white sharks everywhere.”

To which Miss Costa responded: “Hey, WhiteSharkHal, you sound stressed out. I’m near Charleston too and know of a fabulous sushi spot. Let’s go. My treat!”

OCEARCH has a new tagging expedition planned in February off the Atlantic coast, from Myrtle Beach to Jacksonville, Florida.

https://www.wyff4.com/article/hilari...ation/25774901