Humpback Whale Sightings Surge Off Rio de Janeiro, Boosting Whale-Watching Tourism

Humpback whales have become increasingly visible off Rio de Janeiro’s coast as the species rebounds from historic commercial whaling. Observations indicate a marked rise in sightings during the June-November migration window, prompting a growth in demand for local whale-watching excursions.

Commercial whaling reduced the Atlantic humpback population to roughly 2,000 individuals by the late 20th century. In 1982, the International Whaling Commission instituted a moratorium on commercial whaling, effective from the 1985/86 season, allowing populations to recover.

Enrico Marcovaldi (Humpback Whale Project) leads scientific monitoring; Louise Raulais (Rio Ocean Club) runs small-group sailboat tours with a biologist; Pedro Fróes (Humpback Whale Project) participates in the field expedition.

The humpback population in Brazilian waters has risen from approximately 2,000 to about 35,000 individuals over the past four decades, approaching pre-whaling levels. The Rio Ocean Club now offers sailboat trips for five to ten participants, reflecting heightened tourist interest.

Humpbacks travel ~2,500 mi (4,000 km) from Southern Ocean feeding grounds to Brazilian breeding waters, often near the biodiverse Abrolhos Bank reef. Their presence supports marine health and generates local tourism revenue.

Marcovaldi said the rising sightings confirm a healthy recovery. Raulais noted that onboard biologists educate tourists to encourage stewardship. The expedition, set for June 26-July 9, will record whale size, health, migration routes and offshore distribution.

• “It’s wonderful. It shows that the whales are making a recovery, are healthy and thriving, and hopefully they’ll continue to do so,” — Enrico Marcovaldi, co-founder, Humpback Whale Project

• “These animals are so iconic and charismatic that they have the power to transform people, to change the way they see the world,” — Louise Raulais, Rio Ocean Club

• “They’re exploring this area,” — Pedro Fróes, biologist, Humpback Whale Project

• “They want to find out whether, in the future, it could become a place for them to rest, to mate, or to give birth to a calf,” — Pedro Fróes, biologist, Humpback Whale Project

The field study will assess behavior, health and coastal use. Results should guide management of potential resting or breeding sites, influencing future tourism and conservation plans.

Sources agree on population and tourism figures; no contradictions appear. Uncertainty remains about long-term tourism impacts and exact future breeding locations.