Marked Individual A-550

: A-550 X
: X

Sex: male


Date of Birth

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Date of Death:

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Alternate ID:


Social Group Memberships

Encounter(s) (not all may be currently visible) & Biological Samples

No biological samples have been added for this individual.

Social Relationships

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If more than one point is mapped for the marked individual, the map also displays chevrons to guide you from the first sighting (shown as a green icon) to each subsequent sighting over time. The chevrons do NOT represent a path of travel, just a sequential link across time.


Additional data files none

Add data file:

Meet the Adopters

Australia’s Coral Coast
"Swimming with whale sharks at Ningaloo Reef is an awe-inspiring experience and a major draw card for visitation to Australia’s Coral Coast in Western Australia. It’s important that whale shark research and conservation efforts continue, so future generations can also enjoy this unforgettable experience. Visit to plan your swim with the mighty whale sharks at Ningaloo Reef. "
Dr Miriam Larsen Balteskard
"Although a 'vegetarian', this gentle beast of the sea is vital for balance on earth. Research and conservation not only help protect this vulnerable creature from predators like us, but also enable future generations to treasure their gigantic presence. "


Collaborating Researchers

Jason Holmberg

Affiliation: Wild Me

Research Project: Wildbook

Web Site:

"Jason is a founder of Wildbook for Whale Sharks and its Information Architect."

Brad Norman

Affiliation: ECOCEAN

Research Project: normanb

Web Site:

"Brad leads ECOCEAN Inc. and is a co-Founder of the Whale Shark Photo-identification Library."

Emily Wilson

Affiliation: Department of Parks and Wildlife, Government of Western Australia

Research Project: Ningaloo

Researcher comments (Text or HTML):

admin on Mon Jul 20 10:52:19 EDT 2009
Created new shark A-550.

admin on Mon Jul 20 10:52:53 EDT 2009
Added encounter#1552008234225.

admin on Mon Jul 20 10:53:06 EDT 2009
Added encounter#266200923155.

dbradley on Sat Aug 08 06:04:50 EDT 2009
Added encounter#782009233012.

dbradley on Fri Aug 21 02:04:48 EDT 2009
Added encounter#2082009205758.

dbradley on Tue Aug 25 01:08:16 EDT 2009
Added encounter#24820092005.

dbradley on Thu Aug 27 16:57:54 EDT 2009
Added encounter#278200914185.

admin on Sun Sep 13 15:47:03 EDT 2009
Added encounter#17520091105.

admin on Tue Oct 06 02:24:56 EDT 2009
Added encounter#2482009123524.

admin on Sun Nov 22 18:13:43 EST 2009
Added encounter#2211200913433.

normanb on Mon Jul 19 23:37:32 EDT 2010
Added encounter 1972010121937.

dbradley on Sat Jul 24 13:35:26 EDT 2010
Added encounter 2472010122441.

dbradley on Sat Jul 24 14:14:55 EDT 2010
Added encounter 2472010124147.

normanb on Sun Sep 12 05:27:02 EDT 2010
Added encounter 12920104142.

normanb on Sun Sep 12 06:09:05 EDT 2010
Added encounter 129201042857.

normanb on Sun Sep 12 07:50:31 EDT 2010
Added encounter 129201044722.

dbradley on Mon Jun 13 13:15:29 EDT 2011
Added encounter 136201171925.

dbradley on Mon Jun 13 17:52:22 EDT 2011
Added encounter 852011232240.

normanb on Thu Jul 14 09:40:48 EDT 2011
Added encounter 13720111039.

admin on Wed Aug 17 15:11:52 EDT 2011
Added encounter 233201165756.

ewilson on Fri Dec 02 03:23:15 EST 2011
Added encounter 28112011214445.

normanb on Mon Jan 09 08:57:11 EST 2012
Added encounter 161220112824.

normanb on Mon Jan 09 08:58:56 EST 2012
Added encounter 161220112731.

normanb on Thu Feb 02 19:06:46 EST 2012
Added encounter 1412201112140.

normanb on Mon Feb 06 09:21:21 EST 2012
Added encounter 1412201123544.

normanb on Fri Feb 24 00:43:22 EST 2012
Added encounter 1412201123747.

ewilson on Tue Mar 31 23:35:07 EDT 2015
Added encounter 28112011215552.

normanb on Wed Jan 18 03:04:08 UTC 2017
Added encounter b5705a08-e06a-44d3-ac6b-3385421045a5.