scubaseason

Cusk

Brosme brosme

Sighting evidence at Munkholmen Island, Trondheim Fjord

Cusk are solitary cod relatives that prefer cold, clear Norwegian waters and are common on the rocky slopes at Munkholmen below 10 m. They lodge themselves in crevices during the day, their single continuous dorsal fin giving them an eel-like profile. Cusk are long-lived and slow-growing, making undisturbed sites like Munkholmen particularly important for sustaining local populations.

Evidence at this site

No confirmed records on file at this site

Cusk 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.