Videos capture humpback whales stopping to snack as they migrate along Australia's coast

As the southern humpback whale migration continues from warm Australian waters to cold Antarctic feeding grounds, researchers have discovered that these majestic creatures often stop to snack along the way. A new study published in Marine Mammal Science analyzed feeding behavior on Australia's east coast, using citizen science data and social media posts.

The findings challenge the long-held belief that humpback whales solely rely on their fat reserves accumulated in Antarctica for migration, mating and nursing newborn calves. Instead, mid-latitude feeding is a common and widespread strategy among humpback whales, especially between August and October when their energy reserves are at their lowest.

Coastal upwellings driven by the East Australian Current create krill and baitfish bonanzas, providing temporary feeding opportunities for the whales. However, these feeding hotspots overlap with intense human activities such as commercial fishing, shipping lanes, and offshore developments, posing risks such as gear entanglements, vessel strikes, and acoustic disturbances.

The study suggests adapting whale-protection management strategies, including seasonal and mobile management areas, changes to fishing regulations, and monitoring feeding regions to ensure the continued recovery and protection of these magnificent animals.