Order print   subscribe new

Scientists In The Philippines Tag Their Biggest Tiger Shark So Far

biggest tiger 1000

The tagged tiger shark swims into the blue (Photo: Alessandro Ponzo/LAMAVE)

Scientists from Large Marine Vertebrates Research Institute Philippines (LAMAVE), Tubbataha Management Office (TMO) and the Marine Megafauna Foundation (MMF) have successfully tagged a 3.5-metre tiger shark and three grey reef sharks as part of a long-term study in Tubbataha Reefs Natural Park

The research expedition between 22 May and 2 June is the latest in the four years that the organsisations have worked together to study the sharks of Tubbataha Reefs Natural Park (TRNP), which has been under protection since 1998 and was declared a UNESCO World Heritage site in 1993. It is now the most successful MPA in the Philippines, and the only place in the nation's waters where divers can encounter tiger sharks.

The LAMAVE project is the largest current study of sharks around the Philippines, and the tiger shark the largest that they have tagged to date.

biggest tiger tagging

The team with one of the acoustic receivers (Photo: Sally Snow/LAMAVE)

According to the IUCN, 25 per cent of sharks and rays are threatened with extinction. The research aims to provide understanding as to how different shark species use the TRNP in order to facilitate the design of other MPAs within the Philippines and worldwide.

The team is using acoustic tags, with a battery life of up to 10 years, to understand how grey reef sharks and tiger sharks are using the park, along with satellite tags that track the sharks' movements outside the park's boundaries. The tags provide insight as to how the sharks make use of the habitat, creating a map of individual shark movements every time a tagged animal passes within 500m of the 7 receivers that are positioned throughout the park. LAMAVE hopes to expand this network over the coming years to build a larger map of shark movements around the Philippines.

Grey reef sharks are not known to range over long distances, however, tiger sharks are pelagic nomads and will consequently leave the protection of the national park during their lives. The satellite tags communicate with the ARGOS satellite network every time they surface, providing the team with almost real-time data as the sharks navigate through the oceans.

biggest tiger tag 1000

One of the acoustic receivers in the Tubbataha Reefs Natural Park (Photo: Chris Rohner/LAMAVE)

 

mulipack

THREE AMAZING DIVE eBOOKS - FREE

Love diving? You'll love these. Sign up today to immediately download our unique FREE gifts -

AROUND THE WORLD IN 80 WRECKS - DIVE's 70-page, beautifully illustrated, colour guide to the world’s best wrecks

SCUBA STORIES - DIVE's collection of real life stories where divers, who have got themselves into perilous situations, describe how they reacted and what actions they took to ensure they lived to tell the tale

PACIFICHighlights of the Pacific - Dancing mantas in Hawaii • The Best Diving in the World, Galápagos, Cocos, Malpelo & Socorro • Mass Spawning Events in Palau

Signupad

BuyDive2

Destinations Spotlight

Need inspiration for your next dive trip? Try one of our featured destinations from DIVE's travel partners.

sidebar bahamas sidebar philippines sidebar mexico sidebar fijisidebar st helena

DIVE Partners

WAKATOBI DIVE-online-300x100-B Siladen 300x100 Aggressor 300x100 Fisheye banner 300 x 100 Dive Worldwide Oblu 100px X 300pxparalenzuk2

 

Read DIVE magazine

DIVE magazine is available to read on many devices. Simply click one one of the options below


PCMac final
Apple finalAndroid final