Blue whales return to Iceland's Skjálfandi Bay

Researchers have reported a notable return of blue whales to Iceland's Skjálfandi Bay, with several sightings occurring in recent days. This influx offers a valuable opportunity for scientists studying these magnificent, yet elusive, marine giants.

The blue whale project, a research initiative at the University of Iceland, was co-founded in 2008 by Maria Iversen and Marienne Rasmussen. The project's primary objective is to enhance understanding of endangered whale populations through various methodologies. These include analyzing unique whale photographs, capturing acoustic recordings, collecting genetic samples, and documenting behavior and feeding patterns.

Despite these efforts, significant knowledge gaps persist regarding the world's largest animal. "We still have very limited knowledge about the largest animal on Earth, the blue whale," stated Marienne Rasmussen. "We don't know where they go, where they spend most of the year, or where they reproduce." Some whales return to Skjálfandi Bay annually, while others reappear after intervals of several years.

Researchers can identify individual whales through photographs. One blue whale recently sighted in Skjálfandi Bay was last seen there in 2008, an 18-year gap. Another whale observed recently had not been seen in the bay since 2014, 12 years ago. The presence of these returning individuals highlights the bay's importance as a feeding or migratory ground, even as scientists continue to piece together the broader life cycle of these endangered creatures.

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We still have very limited knowledge about the largest animal on Earth, the blue whale. We don't know where they go, where they spend most of the year, or where they reproduce.