Blue and Fin Whale Sightings Rise in Southeast Atlantic

Sightings of blue and fin whales have increased in the southeastern Atlantic off the coast of southern Africa, according to University of Cape Town researchers ^[1].

The rise in activity suggests a gradual recovery of these species after decades of decline. Because these animals are among the largest on Earth, their return to the region provides a critical indicator of marine ecosystem health and the effectiveness of long-term conservation efforts.

The findings come from the University of Cape Town's Centre for Statistics in Ecology, Environment and Conservation ^[1]. Research published in May 2026 indicates that the increase in sightings is a sign of survival hope for the two species ^[2].

These whales were previously decimated by hunting activities. The current trend appears more than 40 years after the end of commercial whaling ^[3]. The southeastern Atlantic serves as a vital corridor for these migratory giants, and their presence in higher numbers suggests that the regional environment can once again support larger populations.

Scientists monitoring the area said that the recovery is gradual. The presence of both blue and fin whales indicates that the biological pressures that once drove them away from these waters are shifting. This trend offers a rare glimpse of optimism for marine biologists tracking the long-term viability of the species ^[2].

The researchers used statistical modeling to track the sightings and determine the trend ^[1]. By analyzing the frequency of encounters in the waters off South Africa, the team established that the population is rebounding in a way that correlates with the cessation of industrial hunting ^[3].