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Rhizostoma pulmo   (Macri, 1778)

Barrel jellyfish
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Image of Rhizostoma pulmo (Barrel jellyfish)
Rhizostoma pulmo
Picture by Pillon, Roberto

Classification / Names Common names | Synonyms | CoL | ITIS | WoRMS

Scyphozoa | Rhizostomeae | Rhizostomatidae

Environment: milieu / climate zone / depth range / distribution range Ecology

Pelagic; depth range 0 - 40 m (Ref. 122800).  Subtropical; 46°N - 30°N, 5°W - 42°E (Ref. 121705)

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions

Mediterranean and Black Sea: from Alboran Sea to Libya in the Mediterranean, east to Russia and north to Ukraine, Black Sea.

Length at first maturity / Size / Weight / Age

Maturity: Lm ?  range ? - ? cm Max length : 90.0 cm WD male/unsexed; (Ref. 358); common length : 60.0 cm WD male/unsexed; (Ref. 358)

Short description Morphology

Diameter of about 60 cm, exceptionally 90 cm. The sunshade is very bent, sometimes even higher than broad; the periphery is deprived of tentacles, replaced by approximately 80-90 lobes distributed on the entire circumference. One counts 8 very long oral; only braided arms towards their base; and comprising with milonguor of the appendices dermic in the cauliflower shape, while the ends smooth and are not ramified. Color: blue; yellow or pink milky; blue lobes ombrellaires with purple darker.

Biology     Glossary (e.g. epibenthic)

Largest in the Mediterranean, is rather not very irritant: the cnidocytes are slightly poisonous and do not transpierce the human skin; there is thus no risk of lesion. Euryhaline species (Ref. 122857). Found in a river estuary (Ref. 122860) and coastal lagoons (Refs. 81044, 122857). Abundant inshore but also found offshore (Ref. 122861).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Members of the class Scyphozoa are gonochoric. Life cycle: Egg is laid by the adult medusa which later develops into a free-living planula, then to a scyphistoma to a strobila, and lastly to a free-living young medusa.

Main reference References | Coordinator | Collaborators

Göthel, H. 1992. (Ref. 358)

IUCN Red List Status (Ref. 124695)


CITES status (Ref. 108899)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Human uses


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FAO areas
Ecosystems
Occurrences
Introductions
Stocks
Ecology
Diet
Food items
Common names
Synonyms
Predators
Reproduction
Maturity
Spawning
Fecundity
Eggs
Egg development
Age/Size
Growth
Length-weight
Length-length
Morphology
Larvae
Abundance

Internet sources

BHL | BOLD Systems | CISTI | DiscoverLife | FAO(Publication : search) | GenBank (genome, nucleotide) | GloBI | Gomexsi | Google Books | Google Scholar | Google | ispecies | PubMed | Tree of Life | Wikipedia (Go, Search) | Zoological Record

Estimates of some properties based on models

Vulnerability (Ref. 71543)
High vulnerability (56 of 100)
Price category (Ref. 80766)
Unknown