Back from the brink: recent 'baby boom' offers new hope for endangered southern right whale
Author: Rebecca Gilling
Recent sightings of southern right whale mothers and babies off the coast of southern Australia are an encouraging sign for a species that was driven to the edge of extinction by whaling in the 1800s.
A slow moving creature that floated when dead and produced an abundance of valuable products, the southern right was so named because it was the ‘right’ whale to catch.
Commercial whaling began in Australian waters in 1820. By 1845, an estimated pre-whaling population of 100,000 had plummeted by 75%, leading to the collapse of the industry. It was not until 1935 that they were officially protected, and they have remained on the endangered species list ever since.
Southern right whales are easily distinguished by their broad back, lack of a dorsal fin and white facial markings called callosities, which serve to identify individual animals. Their two blow holes also generate a distinctive V shaped spray. Females reach maturity at 9 years and give birth every 3-4 years after an 11-12 month gestation. This relatively slow reproductive rate in part explains why their numbers have taken so long to recover.
The calving season runs between July and August, and females are known to return to their own birth spots to give birth themselves. In Warrnambool on Victoria’s southwest coast a fourth calf was recently spotted, making this year a bumper season. This follows a year in which concerns were felt when no females returned to birth in the area.
This year, they've really made up for it," says Victoria’s Department of Environment, Land, Water and Planning senior biodiversity officer Mandy Watson.
Southern rights are renowned for their impressive displays of breaching and headstands, making them a favourite with whale watchers. At Point Ann on the south coast of Western Australia a rare almost white calf has been seen frolicking among a group of around 15 mothers and babies.
While the recent births are welcome additions, with regular visitors to Australasian waters numbering around 3,500 out of a global population of around 12,000 animals, the southern right is unlikely to be taken off the endangered list anytime soon.
"We've got a really small population …, so they've got a long way to go before they're recovered from commercial whaling," Ms Watson says.
Researchers in Victoria have organised a crowd-sourced identification program using the animals’ distinctive facial markings to identify 300 individuals that are then photographed and tracked. Reported sightings are on the increase, and with an annual population growth of around 7%, this year’s baby boom contributes to a real sense of hope for the recovery and long-term survival of these spectacular animals.
- Help to stop plastic litter entering our oceans by using reusable bags for your shopping and avoiding single use plastic bags.
- Recycle unavoidable soft plastic packaging through the REDcycle bins at major supermarkets
- When you go to the beach Take 3 to reduce plastic litter
- Look out for migrating whales up and down the southern Australian coast between May and November
Subscribe to Positive Environment News.
Positive Environment News has been compiled using publicly available information. Planet Ark does not take responsibility for the accuracy of the original information and encourages readers to check the references before using this information for their own purposes.
Author: Rebecca GillingAfter 30 years as an actor, Rebecca joined Planet Ark as our public spokesperson and Audio/Visual Projects Manager in 2002. She shares her passion for the environment, society and organisational change for sustainability with the team at Planet Ark. Being great with people makes Rebecca ideal for her roles as HR Manager and Executive Assistant to our CEO Paul Klymenko. "I feel a real sense of purpose working for an organisation whose values broadly align with my own."
- World's largest trees given new hope for preservation »
- Nearly 400 new species discovered in the Amazon »
- Brush-tailed phascogale makes a surprise appearance on revegetated islands »
- Decades of community action brings a disappearing frogmouth back from the brink »
- Picky plants: Growing green in difficult environments »
- How indoor plants can give city-slickers a literal breath of fresh air »
- Island sanctuary brings hope to dwindling quokka population »
- 1.5 million people, 12 hours, 66 million trees: India's commitment to The Paris Agreement »
- The little Brown Antechinus makes a comeback at Sydney's North Head »
- How you can make the most of Planet Ark's new research into outdoor learning »
- Capturing Carbon to Tackle Climate Change »
- Futureproofing the Lockyer Valley with 20'000 trees »
- Dugong Numbers on the Rise Again in the Great Barrier Reef »
- Answering the Call to Connect With Nature »
- Scientist Discover Massive New Forests »
- 'Creature Compost' - Zoo Reduces Landfill and Generates Income »
- Travel Companies Put Kindness Before Profit in Animal Tourism »
- Thousands of Birds Descend Upon Inland Lakes »
- Trees Help Beat Urban Heat »
- Chile's National Parks Expand by 10 Million Acres »
- Old Televisions Converted to Bee Hotels »
- What if Rivers Could Sue? »
- Access to Nature Should be a Human Right - Report »
- Rock-Wallabies Fighting Back »
- Scientists Use Tasmanian Devil's Immune System to Beat Cancer »
- New Coral Reef Rewrites Textbooks »
- Launch of Positive Environment News »