scubaseason

Humpback whale

Megaptera novaeangliae

Sighting evidence at Whale Nursery, Sainte-Marie Island

Humpback whale

Photo: Wayne and Pam Osborn · CC BY-NC

Humpback whales undertake one of the longest migrations of any mammal, travelling from Antarctic krill grounds to warm tropical nursery sites each winter. Females give birth to single calves weighing nearly one tonne, and the bay here provides calm shallow water for calves to build strength before the return migration. Males produce the iconic complex song that can carry hundreds of kilometres underwater and may function in mate attraction.

Evidence at this site

No confirmed records on file at this site

Humpback whale is listed as a curated species here based on historical reports.

How is this calculated?

Sighting evidence is compiled from iNaturalist observation records within a set proximity radius, filtered for quality-grade observations. “Last confirmed” is the date of the most recent research-grade record. Record count covers a rolling 24-month window. Confidence reflects record count, recency, and consistency of seasonal signal.

Also seen at other sites