This video says about itself:
23 May 2014
In this new Shark Academy, Jonathan Bird explores the Gray Reef Shark, a small feisty shark that is one of the most common in the tropical Pacific. It’s also the species most well known for agonistic displays.
From Wildlife Extra:
New tagging scheme in Mozambique to study endangered grey reef sharks
Grey reef sharks appear to congregate around Vamizi Island to reproduce
Vamizi Island in Mozambique is launching a shark-tagging project to learn more about grey reef sharks.
This endangered species on the IUCN Red List is often seen on Vamizi’s reefs and is an important indicator of the health of the marine ecosystem.
In September 2014, a group of scientists will travel to Vamizi to assist freediving world record holder and IUCN Oceans Ambassador, William Winram, as he dives to fit satellite tags to 10 sharks.
Photographer and film-maker Mattias Klum will capture footage of the event to feature in a film he is producing on the marine eco-system that surrounds Vamizi.
In October, a further 20 sharks will be fitted with acoustic tags by marine scientists. The object of the project is to understand the sharks’ movements and breeding habits, providing invaluable information in the bid to protect them.
The grey reef shark tagging project is one of the first initiatives to be launched under a new partnership between Vamizi and the IUCN.
Large aggregations of up to 30 grey reef sharks have been witnessed between July and November at sites such as the Neptune’s Arm dive site.
All the sharks are mature females, suggesting that these aggregations may have something to do with reproduction.
This Vamizi aggregation is one of the very few known along the East Africa Coast, where shark populations are severely threatened.
By collecting data from tags fitted, the Vamizi-IUCN team will begin gathering the knowledge about their patterns of behaviour, feeding and reproduction that is needed to develop a strategy to protect them.
Known as the Vamizi ‘Big Five’ on the island, the grey reef shark, green turtle, giant grouper, bumphead parrotfish and Napoleon wrasse, all feature on the IUCN’s Red List of endangered species, and take refuge in Vamizi’s waters to feed and reproduce.
From early 2015, the project will be rolled out across several more of the most endangered species, including the populations of marine … hawksbill turtles that are frequent visitors to Vamizi’s reefs.