Reply
 
Thread Tools Search this Thread
 
Old 23 October 2012, 20:29   #1
Member
 
jumpinjack's Avatar
 
Country: UK - England
Town: Derry/Southampton
Boat name: Jumpin Jack
Make: Redbay
Length: 6m +
Engine: Mercury 200 Opti
Join Date: Nov 2011
Posts: 415
Pembroke - help requested to recover basking shark jettisoned tag

A friend of mine has asked me to post : full details on www.baskingshark.ie Green Marine’s tag has been washed close to the Pembrokshire coast just south of st davids in Wales. We are calling all shark biologists to get in contact with any persons, groups or organisations who operate in the area and might have use of a boat and or kayak to recover the tag. Even persons walking the shore may recover the tag which is yellow in colour and 6 inches long by two inches wide.

Last known position on 22nd October was 51.853N 005.231W

There is a £100 pound reward for the recovery of the tag which holds invaluable information on the movements of the shark it was attached to for the past number of months.

For details Contact Emmett Johnston on 00 353 87 1857980
__________________
jumpinjack is offline   Reply With Quote
Old 23 October 2012, 20:34   #2
Member
 
Razorbill RIBs's Avatar
 
Country: UK - Wales
Town: N. Pembrokeshire
Boat name: Various
Make: RIBs & Hovercraft
Length: 9m +
Engine: Outboards
MMSI: Various
Join Date: May 2009
Posts: 1,358
RIBase
Will pass this to the Pembrokeshire Outdoor Charter Group / Pembs Marine Code Group..... Am working with some of these bods tomorrow......several are regular Kayakers around that area......
__________________
Dan Worth
www.razorbillribs.co.uk

Follow us on Facebook https://www.facebook.com/#!/group.php...17306504953480
Razorbill RIBs is offline   Reply With Quote
Old 23 October 2012, 20:49   #3
Member
 
SimonStDavids's Avatar
 
Country: UK - Wales
Town: St Davids
Boat name: Mellifera
Make: Avon
Length: 4m +
Engine: Outboard
Join Date: May 2010
Posts: 189
RIBase
I'll have a look

The lat and long is pretty near me (porth clais), I will have a look tomorrow if i can get out around high tide.
__________________
SimonStDavids is offline   Reply With Quote
Old 23 October 2012, 21:02   #4
RIBnet Supporter
 
willk's Avatar
 
Country: Ireland
Length: 4m +
Join Date: Feb 2008
Posts: 14,666
This is a genuine appeal from the Scientific Community for real world assistance. The request comes from someone* doing cutting edge shark research and every bit of recovered data helps paint the big picture of where these magnificent creatures go.

*The fact that he is a Redbay owner has in no way influenced my opinion
__________________
willk is offline   Reply With Quote
Old 23 October 2012, 21:30   #5
Member
 
HUMBER P4VWL's Avatar
 
Country: UK - Wales
Town: N Wales Chester
Boat name: Mr Smith
Make: Humber
Length: 6m +
Join Date: Feb 2009
Posts: 5,238
Best keep posting the position regularly. Someone on here will be near it soon.
Love the benefits of the forum/Internet.
Posted on FaceBook too.
__________________
HUMBER P4VWL is offline   Reply With Quote
Old 24 October 2012, 01:06   #6
Dhf
Member
 
Dhf's Avatar
 
Country: UK - Wales
Length: no boat
Join Date: Jan 2012
Posts: 1,012
[QUOTE=paulbryson75;495602]

Last known position on 22nd October was 51.853N 005.231W


I would like to help but but need more infomation on location. I'm used to working with degrees, minutes, and seconds, trouble is you don't get 853 minutes in a degree only 60=nm. so i assumed the missing decimals where between 8 and 53 so 51-08.53, and then long being 005-02-31 in which case puts me 14nm West of S Lundy, Or if the long is 005-23.01 that would be approx 28nm W of S Lundy.
I then thought maybe this was grid reference in which case puts me 55km South of Amsterdam.
Is there some other chart reference they use or has someone forgot to put a decimal in.
__________________
Dhf is offline   Reply With Quote
Old 24 October 2012, 05:31   #7
Member
 
SimonStDavids's Avatar
 
Country: UK - Wales
Town: St Davids
Boat name: Mellifera
Make: Avon
Length: 4m +
Engine: Outboard
Join Date: May 2010
Posts: 189
RIBase
Conversion

I have taken the lat and long to be a decimal of a degree, but stand to be corrected.

Quote:
Originally Posted by paulbryson75 View Post
Last known position on 22nd October was 51.853N 005.231W
Ie. 51.853 is 51 degrees and 0.853 of a degree. Simply convert back. I get a position near black scar, Solva.

I stand to be corrected though.
__________________
SimonStDavids is offline   Reply With Quote
Old 24 October 2012, 06:49   #8
Member
 
Country: UK - England
Town: NW Surrey
Boat name: Lady Helen
Make: Avon
Length: 3m +
Engine: Out Petrol 3.5 & 15
Join Date: Aug 2011
Posts: 222
You can use Latitude and Longitude of a Point to input a Lat/Long and get a Map Location.

This gave me 2km offshore between St David's and Solva.
__________________
EnglishLes is offline   Reply With Quote
Old 24 October 2012, 11:31   #9
Dhf
Member
 
Dhf's Avatar
 
Country: UK - Wales
Length: no boat
Join Date: Jan 2012
Posts: 1,012
During my search I found this usfull link for onscreen chart reference, which saves pulling the charts dividers and parra rule out, for quick reference anyway.

Sailing Charts. Passage Planning Charts.

Another thing I would like to know is how often data is updated with sat pos, is the tag still transmitting data, or has the power pack simply died, or become detatched. and does the device float.
__________________
Dhf is offline   Reply With Quote
Old 24 October 2012, 11:49   #10
Member
 
jumpinjack's Avatar
 
Country: UK - England
Town: Derry/Southampton
Boat name: Jumpin Jack
Make: Redbay
Length: 6m +
Engine: Mercury 200 Opti
Join Date: Nov 2011
Posts: 415
Latest position i believe - 16hours ago is
51.852N 005.266W
Tag is still transmitting data, it floats.
__________________
jumpinjack is offline   Reply With Quote
Old 24 October 2012, 13:07   #11
Dhf
Member
 
Dhf's Avatar
 
Country: UK - Wales
Length: no boat
Join Date: Jan 2012
Posts: 1,012
Well that's very little change in position, greatest to the west. maybe caught in nets or something, the tide flows pretty fast round this erea even with neaps, so if it where totally detatched it would have drifted upto 18 to 24nm with each tidal flow change. whats needed is an exact position report within 1hr of recieving data. with Degrees minutes and seconds.
__________________
Dhf is offline   Reply With Quote
Old 26 October 2012, 12:34   #12
Member
 
jumpinjack's Avatar
 
Country: UK - England
Town: Derry/Southampton
Boat name: Jumpin Jack
Make: Redbay
Length: 6m +
Engine: Mercury 200 Opti
Join Date: Nov 2011
Posts: 415
Latest position - this morning - 51.908N 005.726W they suspect it is moving in/out with the tide and seem to think it may well come either very close to shore or even ashore on this evenings tide.
__________________
jumpinjack is offline   Reply With Quote
Old 26 October 2012, 14:24   #13
Dhf
Member
 
Dhf's Avatar
 
Country: UK - Wales
Length: no boat
Join Date: Jan 2012
Posts: 1,012
Quote:
Originally Posted by SimonStDavids View Post
I have taken the lat and long to be a decimal of a degree, but stand to be corrected.



Ie. 51.853 is 51 degrees and 0.853 of a degree. Simply convert back. I get a position near black scar, Solva.

I stand to be corrected though.
Thank you Simon, It seems you where correct with your decimal of a degree locatating, I have learned this method myself now.

Quote:
Originally Posted by EnglishLes View Post
You can use Latitude and Longitude of a Point to input a Lat/Long and get a Map Location.

This gave me 2km offshore between St David's and Solva.
Many thanks for that convertion link Les, I've learned alot from that.

Quote:
Originally Posted by paulbryson75 View Post
Latest position - this morning - 51.908N 005.726W they suspect it is moving in/out with the tide and seem to think it may well come either very close to shore or even ashore on this evenings tide.
Thank you for the updates Paul, and sorry to see nothings turned up yet, I noticed the latest position seems to be approx 18nm west of Ramsey, but I maybe wrong as i'm new to working with decimal coodinates.
Regards
__________________
Dhf is offline   Reply With Quote
Old 02 January 2013, 23:02   #14
RIBnet Supporter
 
willk's Avatar
 
Country: Ireland
Length: 4m +
Join Date: Feb 2008
Posts: 14,666
Some more results from this project here: BBC News - Donegal shark travels 3,000 miles to coast of Africa
__________________
willk is offline   Reply With Quote
Old 05 January 2013, 20:08   #15
Member
 
Boatnomad's Avatar
 
Country: Ireland
Make: Zodiac Mk I
Length: 3m +
Engine: 15 hp Yam two stroke
Join Date: Feb 2012
Posts: 728
Quote:
Originally Posted by willk View Post
Some more results from this project here: BBC News - Donegal shark travels 3,000 miles to coast of Africa
Maybe they feed like the Humpback Whales

https://en.wikipedia.org/wiki/Humpba..._and_predation
Attached Thumbnails
Click image for larger version

Name:	but that is not found down there in the tropical waters..jpg
Views:	254
Size:	60.8 KB
ID:	75263  
__________________
Boatnomad is offline   Reply With Quote
Old 16 January 2013, 14:29   #16
Member
 
Country: UK - Scotland
Boat name: Wildheart
Make: Humber/Delta Seasafe
Length: 5m +
Engine: Merc 60 Clamshell
MMSI: 235068449
Join Date: Apr 2007
Posts: 4,667
It's a good 4 degrees too far south for me to do much about helping, but with regard to Lat / Long, there are plenty of Decimal - Deg-min-sec converters out on t'net.

first 3 randoms from google - no warranty / accuracy implied.

Convert Latitude / Longitude in Degrees/Minutes/Seconds to/from Decimal (FCC) USA Used this before.
Latitude / Longitude Conversion - Directions Magazine
Lat-Long Converter, only goes one way.


Failing that, if you are using a handheld GPS, any I've used have an option in the system / setup menu to swap between all the various formats of position. I have the handheld on the Rib set to decimal degrees & the Plotter on DD.MM.SS. Means if anyone shouts a position during a Mayday I can find it quick without having to delve into the setup menu first to convert the format.
__________________
9D280 is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off




All times are GMT. The time now is 16:48.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2024, vBulletin Solutions, Inc.