Believing that it is the responsibility of all of us to protect and preserve our environment, Soldiers Point Marina is proud and privileged to announce our adoption of Moby - a 5m young male whale shark (Rhincodon typus) from Cendrawasih Bay located in West Papua New Guinea, fast becoming known as the whale shark capital of the world.
The whale shark is the largest fish in the sea and listed as “vulnerable”, so to give scientists a better understanding of their behaviour and movements a recent tagging program in October/November 2015 was conducted to allow scientists better management of them.
In this operation, headed by Marine Biologist Dr Mark Erdmann, five fin mounted satellite tags were deployed to five young male whale sharks ranging in size from 3-6m in length, one of which was Moby. The radio-frequency identification (RFID) tags can quickly determine the size of the bay’s population while also allowing scientists to monitor individuals’ movements in/outside the bay over the coming years.
We look forward to bringing you updates on Moby’s movements.
Everytime Moby surfaces, a tracker uploads the current location and depths he has dived to a satellite. If the quality of the uplink is good and the data is complete, we add the new location and depth below.
Last uplink: 2017-03-19 00:05:00
The last 10 locations where Moby has surfaced.
These are the depths that Moby dives to between surfacing.
A heatmap of Moby's favourite spots to play.
31 August 2016
Moby has come home to Kwatisore. After an epic, nearly 5000km journey that took him up to Yap and the Mariana Trench and then across the birds head to Raja (hitting Misool), he returned to Kwatisore and is also hanging out with Wally and Yalgal. Along his trip he managed to bust his depth gauge - after recording a dive to 1856m, his depth gauge packed it in and so we can’t see his depth any more. Fortunately we can still see his position, and if he stays in Kwatisore, we hope during this year’s True North cruises to be able to catch him and recover his old tag and replace it with a shiny new one with functional depth sensor. Stay tuned!
20 June 2016
Moby has now even further smashed his previous depth record of 1416m - diving to 1856m in the past few months!!! We thought this must surely be a world record, but Megan Meyers (University of Auckland Master’s student who is now analyzing all of this data for her thesis) informs me there is a recent paper published at the end of last year from the Caribbean that records a 1928m dive by a larger whale shark there. Nonetheless, this appears to be the second deepest dive ever recorded for a whale shark - perhaps Moby will surpass the 2000m mark this year…Note that Moby’s horizontal movements have been every bit as impressive as his vertical ones - he shot out to Yap and over the southern Mariana Trench before returning to the northern Bird’s Head - now just west of Manokwari and apparently on his way back to Cendrawasih. His journey from Kwatisore has surpassed 4000km to date!
20 March 2016
Speaking of deep, Moby is proving himself worthy of his namesake - SMASHING the previous depth record we had with a dive to 1416m!!! I honestly didn't even think you could reach that depth in Cendrawasih, but he's done it! I need to do a bit of snooping around in the literature to find out if any other satellite tags around the world have recorded this depth for whale sharks - either way, very impressive! For the past few months Moby's been staying away from the bagans of Kwatisore - he's been a bit offshore in the eastern/central part of the bay (apparently enjoying his deep diving and perhaps munching on deep plankton).
Latest blog posts about Moby
Video of Moby after being tagged
Some interesting facts on the whale shark.
- are named "whale" because of their size and not because it is related to them
- feed predominately on plankton, however in Cendrawasih they love the small fish that spill from the fishermen’s nets
- are bluish-gray or brown-black in color. Their bellies are white, and their back and sides are covered with white or creamy stripes and dots
- can grow to more than 12 metres in length; the largest confirmed individual had a length of 12.65 m and a weight of about 21.5t
- can swallow 1500 gallons of water each hour
- have a slow growth rate, only reaching maturity at around 30 years old and living as long as 60 – 100 years
- found in open waters of the tropical oceans and rarely found in water below 22°C
- although massive, whale sharks are docile fish and generally considered harmless to humans
- females can have up to 300 pups per litter
- don’t become sexually mature until they are about 30 years of age
- have a life span of approximately 100 years