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Mediterranean invasive species factsheet
Herdmania momus. Photo: Dr. Noa Shenkar
Herdmania momus. Photo: Dr. Noa Shenkar
Similar species Management options
There are no similar species in the Mediterranean Sea. Regulations and management concerning fouling on
commercial and recreational vessels may prevent
Ecological impacts further introductions.
Populations of H. momus are expanding both
globally and across the eastern Mediterranean, and
Further reading
these populations have not yet been shown to
Shenkar N., Loya Y., 2008. The solitary ascidian
outcompete native species or invade natural
Herdmania momus: native (Red Sea) versus non-
ecosystems. Its potential invasive status is indigenous (Mediterranean) populations. Biol. Invasions
uncertain. 10:1431–1439.
Rius, M, Shenkar, N., 2012. Ascidian introductions through
the Suez Canal: The case study of an Indo-Pacific species.
Economic impacts Mar. Pollut. Bull. 64 (10), 2060-8. Drawings: Juan Varela
Like other ascidians, it can be a nuisance fouler on
ships, recreational vessels and other submerged
man-made structures.
90 AMonitoring Marine Invasive Species in Mediterranean MPAs: A strategy and practical guide for managers
