Golden jellyfish

Mastigias papua etpisoni

Sighting evidence at Jellyfish Lake, Rock Islands

Photo: Mark Rosenstein · CC BY-NC

Evidence at this site

16 records within 25 km

Confidence: medium

Last confirmed May 2026

130 records within 10 km

Confidence: high

Last confirmed Apr 2026

Seasonality

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

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.