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Humpback whale underwater

Climate giants – how whales can help save the world

We know that whales, dolphins and porpoises are amazing beings with complex social and family...
Black Sea common dolphins © Elena Gladilina

The dolphin and porpoise casualties of the war in Ukraine

Rare, threatened subspecies of dolphins and porpoises live in the Black Sea along Ukraine's coast....
WDC's Ed Fox, Chris Butler-Stroud and Carla Boreham take a message from the ocean to parliament

Taking a message from the ocean to parliament

It's a sad fact that whales and dolphins don't vote in human elections, but I...
Minke whale © Ursula Tscherter - ORES

The whale trappers are back with their cruel experiment

Anyone walking past my window might have heard my groan of disbelief at the news...
Boto © Fernando Trujillo

Meet the legendary pink river dolphins

Botos don't look or live like other dolphins. Flamingo-pink all over with super-skinny snouts and...
Tokitae in captivity

Talking to TUI – will they stop supporting whale and dolphin captivity?

Last Thursday I travelled to Berlin for a long-anticipated meeting with TUI senior executives. I...

Earth Day Q&A with Waipapa Bay Wines’ marketing director, Fran Draper

We've been partnered with Waipapa Bay Wines since 2019 so for this year's Earth Day,...
Orcas at the seabed

The secrets of orca beach life

Rubbing on smooth pebbles is a generations-old cultural tradition for a particular group of orcas...

A first ID match for the orcas of the Indian Ocean

WDC friend and colleague, Georgina Gemmell, recently got in touch with some exciting news to share. Here she takes up the story.

Almost nothing is known about the orcas that inhabit the tropical waters of the Northern Indian Ocean (NIO).

Due to their offshore nature and infrequent sightings, very little is known about their ecology, movements, population structure and more…this makes them some of the most mysterious cetaceans in the world. However, as ocean-wide collaborative citizen science efforts increase, we are beginning to shed some light on the lives of these secretive whales.

Last week, Orca Project Sri Lanka announced that they had matched two individuals from their catalogue to orcas photographed some 3,300 kilometres away, across the Arabian Sea in Abu Dhabi. This exciting finding is the first ever record of a trans-Indian Ocean match and demonstrates how far these orcas can travel.

The two individuals, orcas OM015 ‘Arion’ and OM016 ‘Lassana’, were first sighted off Mirissa in southern Sri Lanka earlier this year by whale watch operator Raja and the Whales. Their distinctive dorsal fins clearly match those of a pair of orcas photographed in 2008 off Abu Dhabi, in the shallow waters of the Persian Gulf. Orca experts Robert Pitman, John Durban and David Ellifrit confirmed the positive ID.

This exciting finding bodes well for the potential success of collaborative citizen science when studying these far-travelling pelagic orcas. The Northern Indian Ocean Killer Whale Alliance was recently founded in collaboration between Orca Project Sri Lanka and whale researcher Tim Collins of the Wildlife Conservation Society. In addition to coordinating a Photo ID catalogue for the region, the alliance was set up with the objective of increasing the number of “eyes and ears” available in the area for orca sightings.

Already the NIO orca catalogue holds over 50 individuals from all over the Northern Indian Ocean, with images contributed by members of the alliance which include Whale Watchers, NGOs, researchers, fisherman, yachties, marine enthusiasts and more. The catalogue will be made available to the public via an official website and downloadable PDF to be released shortly. While only in the early stages, in time this project may reveal new findings regarding population numbers, ecotypes, site fidelity, diet, movements between countries and more!