Kauaʻi record · KCA-WOI-00006
Mycale (Mycale) grandis
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About Mycale (Mycale) grandis
Often called the keyhole sponge, Mycale grandis can form substantial orange to red-orange growths with prominent water outlets. Hawaiʻi's aquatic invasive-species program treats it as an introduced sponge of concern because it can spread across reef surfaces and overgrow other organisms. The Atlas preserves the older name Mycale armata used in the Kauaʻi evidence. General concerns about the species should not be mistaken for a measured impact at every historical collection site.
The Kauaʻi evidence comes from a historical source record dated 2002, retained as “Mycale armata” in Appendix A printed p. 69 of the cited survey. This preserves evidence of the reported occurrence; it does not establish present-day distribution or abundance. The historical source name and the current name are retained together so the record can be traced through taxonomic changes.
Names and classification
- Scientific name
- Mycale (Mycale) grandis
- Family
- Mycalidae
- Order
- Poecilosclerida
- Record type
- species
Kauaʻi occurrence and status
- Kauaʻi occurrence
- Historical source record (2002); current presence not reassessed
- Origin
- Origin not yet resolved
- Conservation status
- Not assessed
Process and seasonal context
- Seasonal description
- Often called the keyhole sponge, Mycale grandis can form substantial orange to red-orange growths with prominent water outlets. Historically reported from Kauaʻi (2002).
Sources and further reading
- Coles, S.L., P.R. Reath, K. Longenecker, H. Bolick & L.G. Eldredge. 2004. Assessment of nonindigenous marine species in harbors and on nearby coral reefs on Kauaʻi, Molokaʻi, Maui, and Hawaiʻi. Bishop Museum Technical Report 29a. — Appendix A printed p. 69
- Hawaiʻi DLNR — Keyhole sponge
- Recovery taxonomy reconciliation — World Porifera Database