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1/15/2016

When $cience Biofouls

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October 29th, 2009, the white shark Junior was captured at the Farallon Islands, brought aboard a modified crabbing vessel, and outfitted with several tracking devices, including a four bolt SPOT tag.  On October 12th of 2010 Junior was seen with his new tag looking terrible.  Earlier that season a call to Doctor Domeier from a photographer at the islands confirmed that the tag had “biofouled” and ceased to emit data.  However, Marine CSI, the organization that retained the rights to the data from the tag proceeded to post migration data claiming that Junior had completed another round trip journey to the White Shark Cafe and back over the following season.  How was the data from this journey established if the SPOT tag failed a season earlier? Presumably this was done with the data still being emitted from other tracking devices that were also attached to the shark…

So what?

So this.  The data published doesn’t offer up the fact that it was achieved with data other than the SPOT tag.  Also, the fact that the SPOT tag fouled after one year (or less) isn’t exactly information that is easy to find.

Again, so what?

The point is that unless you happen to be an individual who looks deeply into the backstory of such issues you are likely to be left with the idea that Junior is alive and well and that the SPOT tag achieved its purpose of providing valuable data.  The TV show being filmed aboard the boat at the time of Junior’s tagging even amended it’s ending of the episode to include the round trip migration data and imply that Junior was alive and well and that the experience was just like going to the dentist (thanks for that bit of brilliance Maria Brown).  What you wouldn’t know is the following:

  • Junior’s SPOT tag biofouled (failed) within one season.

  • Junior’s migration data was completed using data not obtained from the SPOT tag.

  • Junior was last seen in “horrible condition”, a drastic decline from the big, healthy shark that he was prior to the tagging incident.

  • Junior has not been seen since that video was shot on 10/12/2010 and has not ‘pinged’ in since 2011. Supporters of the SPOT tagging effort hope that Junior is still alive and well and has simply been off the radar for three years and will eventually turn up.  The other side of the coin presumes Junior is dead.


It is difficult to prove whether a tagged shark is dead or not unless its body is found or if the mortality is caught on video (as happened in the next season with the OCEARCH team in South Africa).  So, since Junior didn’t die on camera and his continued existence can’t be proven or denied, let’s shift topics slightly and go back to the data.


The inherent risk of injury to an animal when it is hooked in the mouth, dragged until it has given up the fight, then removed from the water for upwards of 20 minutes speaks for itself.  But there is an argument that justifies such a risk; the importance of the data received from the tag that “had to be applied with the shark out of the water”. OK, so let’s examine this important data.  


  • Junior was found at the Farallones, a well-known gathering site for white sharks. The fact that this was an established aggregation site had nothing to do with tagging data; in fact, like most locations, taggers showed up because it was already known the sharks were present.

  • After the tagging the shark headed where it was predicted to head; where all the other tagged Pacific white sharks head around that time of year, ‘The White Shark Cafe’.  Yep, the shark followed the migration route that had already been mapped and published by California researchers, who by the way, achieved this migration map WITHOUT the use of SPOT tags.

  • One of the arguments for the SPOT tag is its extended battery life (up to 6 years) thus the need to attach it to the animal in a more permanent manner, i.e., bolted onto the dorsal fin.  Well, the tag did not last anywhere near its boasted lifespan, in this case only one year.  Adding insult to injury are new reports of prematurely failing SPOT tags that are still coming in.

  • The migration data that was mapped post-biofouling didn’t use a SPOT tag.  This begs the question, if the migration mapping could be done without the SPOT tag why couldn’t such a high-risk tag be foregone in the first place?


My answer (surprise, surprise) is money. Call me a conspiracy theorist if you like, but It’s not very far fetched when you consider the following.  Research costs money. Most researchers don’t have a lot of funding. The researchers who went on the MV OCEARCH all stated that they needed funding dollars for the work they were trying to do and received that funding as a result of their partnership with OCEARCH.  Research is a career, and like any other industry there is a certain amount of competition involved, sometimes that means pushing the envelope.  

And of course, there's the television...

TV shows cost money to make and distribute so if we’re talking dollars and ratings, answer this question; In this day and age which of the following shows is going to get more ratings from today’s short attention-spanned reality-TV addicted masses? The show that hunts white sharks with a hook and line, fights them to exhaustion, then lifts them out of the water for the whole world to see?  Or the show where the shark swims by mostly under the surface, and a tag quickly is attached with a pole?  Over an hour of drama with the first option compared to less than a few seconds of action in the second option (a few seconds during which the shark can barely be seen I might add).  The days of a syndicated television show seems to be on hold for OCEARCH, but the funny thing is that they are on TV more than ever!  And you better believe most of the media buzz centers on the "money shot" of a 3,000 + pound ultimate predator lying on the deck of the boat.

Proceed to mapping comparisons in South Africa and Australia. 
Proceed to mapping comparisons in the Atlantic


Articles from the 2009 incident - http://iteamblog.abc7news.com/2011/05/controversial-shark-researcher-wants-4-year-permit.html


http://www.livescience.com/30339-sharks-great-white-sharks-tagging.html


http://www.southernfriedscience.com/?p=9857


http://www.southernfriedscience.com/?p=10282




#ocearch #mcsi #domeier #tagging #sharktagging #science #biofoul #schiffman #fischer #mcbride #junior #farallones #fatality #spot #spottag #tag

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  • Shark Blog
    • Watching Humans Blog
  • Monsters
  • About
    • Monsters - Project Overview
  • Education / Events
    • Presentations
    • Bookings
    • Feedback
    • Past Events >
      • Shark Night
      • Sharktoberfest 2018
      • Surfrider Sharktober 2018
      • Surfrider Foundation (San Mateo Chapter)
      • Night Life 2013 "Killer Personalities"
      • 7 Teepees
      • Great White Lies San Francisco Premiere
      • SF March Against the Cull
      • Great White Night 2012
      • Night Life 2011
      • Gentlemen's Club
      • Scuba Squad Divers
      • Sharks and Beer
      • Launch Party / Fundraiser
      • Of Whale and Man
    • FALSE CONSERVATION >
      • OCEARCH >
        • OCEARCH OVERVIEW
        • Internal Damage
        • Fin Damage >
          • Frodo's Fin Damage Timeline
        • OCEARCH's Pregnant Shark Not Pregnant
        • Science...without the Science
        • OCEARCH Videos >
          • Sinking Away
          • Not Stressed
          • Charlie Rose 1
          • Dorsal Fin Damage
          • PAT tags VS. SPOT tags
          • Tagging Options
          • Message to Australia
  • Videos
    • Stupid Things People Say About Sharks
    • Racism and Sharks
    • Connection
    • 360s Drones and Sharks
    • Footage Licensing
    • Tiger Shark Vs. Turtle
    • Guadalupe Cage Dive Guide
    • minioncam
    • Guadalupe White Sharks 2018
    • Product Reviews
    • Interviews >
      • Guadalupe 2018 Interview
      • Andre Rerekuru
      • RodneyFox
      • Chris Neff >
        • Cape Cod Cull
      • WalterBernardis
    • SharkMinutes
    • Kid Friendly >
      • Blueprint
    • Feature Films >
      • Monsters >
        • Enterprise Documentary Fund
      • Great White Lies >
        • Film Festivals >
          • Dropbox Links Great White Lies
    • Short Films >
      • Victory Over Sharks
      • Mothers and Children
      • Sentience
      • Elasmo
      • Shark Rescue
      • Balance
      • Shark Affection
      • Purpose
      • To Touch a Killer
      • Swimming In Shark Alley
      • White Shark Behavior: Part 1
      • Connection
      • Farallon Islands
      • Sustainable
      • Fear
    • Quick Bites >
      • Nurse Shark Barbels in Slow Motion
      • Do Sharks Get Cancer?
      • Sydney Harbor Video of White Shark is Fake
      • White Shark Swallows Tuna in One Bite
      • Gentle Biting and Ram Ventilation
      • Hammerhead Love
      • Seal Swims Leisurely Around White Sharks
      • Great White High Five
      • Petting a Nurse Shark
      • White Shark Tail Narrowly Misses Woman
      • Shark Shart ( Great White takes a shit )
      • WSV Preview
    • Elasmo >
      • Elasmo 0
      • Elasmo 1 and 2
      • Elasmo 3
      • Elasmo 3 Short Version
      • Elasmo 4 (Blue Sharks)
      • Elasmo 5 - Great hammerheads
      • White Dream (short)
    • Surf >
      • Surfing With Sharks - Wayne Lynch
      • California >
        • Jetty, Half Moon Bay, 2/16/14
    • The Price of Existence >
      • Criminalizing Natural Behavior
      • Price of Existence Excerpts with Chris Fallows
      • Dr. Neil Hammerschlag Explains Responsible Drum Lining
      • Price of Existence Trailer
      • Global Opposition to the Cull
      • Daniel Wolfe Interview Exerpt
    • Outtakes >
      • Surfer Interview Outtake
      • Avoiding Gansbaai
      • The Bag Boy
    • Samples
    • Videos from Others >
      • Good Vids >
        • White Shark Research in New Zealand
        • The Shark Man (60 Minutes)
        • Baby White Shark Caught
      • Bad Vids >
        • All that is wrong with Discovery wrapped up in one vid