Scuba Season

Nurse Shark

Ginglymostoma cirratum

Sighting evidence at Ervatão Reef, Boa Vista

Nurse Shark

Photo: Tim Cameron · © all rights reserved

Nurse sharks rest in the sandy channels between Ervatão's reef spurs from late morning through afternoon, often stacked two or three deep under low overhangs where the current is minimal. They are entirely unbothered by divers at this site and allow close approach, making them one of the most photographable large elasmobranchs in Cape Verde. At dusk they become active and patrol the rubble zones at the base of the reef to hunt crustaceans and small fish.

Evidence at this site

1 record within 25 km

Confidence: low

Seasonality

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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