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Rhopilema Nomadica Galil, Spanier & Ferguson, 1990

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Rhopilema Nomadica Galil, Spanier & Ferguson, 1990 Identificazione e distribuzione nei mari italiani di specie non indigene Classe Scyphozoa Rhopilema nomadica Ordine Rhizostomeae Galil, Spanier & Ferguson, Famiglia Rhizostomatidae 1990 SINONIMI RILEVANTI Nessuno DESCRIZIONE COROLOGIA / AFFINITA’ Senza dati. Ombrello quasi emisferico, più inspessito nella porzione centrale, si assottiglia gradualmente verso il margine. Esombrello con piccoli granuli. DISTRIBUZIONE ATTUALE Margine dell'ombrello diviso in 64 falde velari Indo-Pacifico, Mediterraneo. arrotondate. Medusa priva di tentacoli marginali, braccia orali fuse per tutta la loro lunghezza. Cavità stomacale PRIMA SEGNALAZIONE IN MEDITERRANEO approssimativamente ottogonale. Coste mediterranee di Israele, 1976 - Galil et al. 1990. COLORAZIONE Blu ghiaccio. PRIMA SEGNALAZIONE IN ITALIA - FORMULA MERISTICA ORIGINE - Oceano Indiano. TAGLIA MASSIMA Il peso può variare da 6 a 10 kg, il diametro varia VIE DI DISPERSIONE PRIMARIE da 500 a 580 mm ma può raggiungere gli 850 mm La dispersione degli stadi di efira e di scifistoma avviene tramite le "ballast waters". Rhopilema nomadica è un invasore lessepsiano. STADI LARVALI Planula. VIE DI DISPERSIONE SECONDARIE SPECIE SIMILI - - STATO DELL ’INVASIONE Specie invasiva. Identificazione e distribuzione nei mari italiani di specie non indigene CARATTERI DISTINTIVI MOTIVI DEL SUCCESSO Sconosciuti - HABITAT SPECIE IN COMPETIZIONE Medusa e efire planctoniche, scifistoma e strobila Rhizostoma pulmo. bentonici. IMPATTI PARTICOLARI CONDIZIONI AMBIENTALI DANNI ECOLOGICI Rhopilema nomadica si sta sostituendo alle meduse La strobilazione può avvenire solo nelle località autoctone, rappresentate soprattutto da Rhizostoma del Mediterraneo dove la temperatura raggiunge pulmo . valori elevati; inoltre sono necessari substrati duri per l'insediamento delle larve e la formazione dello DANNI ECONOMICI scifistoma. Ingenti danni al turismo in quanto la medusa infligge gravi ustioni ai bagnanti; riduzione del BIOLOGIA pescato durante i blooms perché le meduse intasano le reti da pesca. Sconosciuta. IMPORTANZA PER L ’UOMO Sconosciuta. BANCA DEI CAMPIONI - PRESENZA IN G -BANK - PROVENIENZA DEL CAMPIONE TIPOLOGIA : (MUSCOLO / ESEMPLARE INTERO / CONGELATO / FISSATO ECC ) LUOGO DI CONSERVAZIONE CODICE CAMPIONE Identificazione e distribuzione nei mari italiani di specie non indigene BIBLIOGRAFIA Galil B.S., Spanier E., Ferguson W.W., 1990. The scyphomedusae of the Mediterranean coast of Israel, including two Lessepsian migrants new to the Mediterranean. Zoologische Mededelingen (Leiden) 64: 95–105. Lakkis S., Zeidane, R., 1991. Jellyfish swarm along the Lebanese coast. (Abstract.) Lebanese Association for Advancement of Sclence 11th Science Meeting, American University of Beirut. Lotan A., Ben-Hillel R., Loya Y., 1992. Life cycle of Rhopilema nomadica : a new immigrant scyphomedusan in the Mediterranean. Marine Biology 112: 237–242. Avian A., Galil B., Spanier E., Sandrini, L.R., 1994. Rhopilema nomadica (Cnidaria; Scyphozoa; Rhizostomeae): Un Caso di Migrazione Lessepsiana. Biologia Marina Mediterranea, 1, 137–138. Lotan A., Fine M., Ben-Hillel R., 1994. Synchronization of the life cycle and dispersal pattern of the tropical invader scyphomedusan Rhopilema nomadica is temperature dependent. Marine Ecology Progress Series 109: 59–65. Avian M., Spanier E., Galil B., 1995. Nematocysts of Rhopilema nomadica (Scyphozoa: Rhizostomeae), an immigrant jellyfish in the Eastern Mediterranean. Journal of Morphology 224: 221–231. Kideys A.E., Gücü A.C., 1995. Rhopilema nomadica : A Lessepsian scyphomedusan new to the Mediterranean coast of Turkey. Israel Journal of Zoology 41: 615–617. Kokelj F., Avian M., Spanier E., Galil B.S., 1995. Dermatotoxicity of 2 nematocyst preparations of the jellyfish Rhopilema nomadica . Contact Dermatitis 32: 244. Lotan A., Fishman L., Loya Y., Zlotkin E., 1995. Delivery of a nematocyst toxin. Nature 375: 456. Av şar D., 1999. Physico-chemical characteristics of the Eastern Mediterranean in relation to distribution of the new Scyphomedusae ( Rhopilema nomadica ). Turk. J. Zool. 23: 605–616. Galil B.S., 2000. A sea under siege-alien species in the Mediterranean. Biol. Inv. 2: 177–186. Galil B., Zenetos A., 2002. A sea change – exotics in the eastern Mediterranean. In: E. Leppäkoski, S. Olenin & S. Gollasch (Eds). Invasive Aquatic Species of Europe: Distributions, Impacts and Management. Kluwer Academic Publishers Dordrecht, The Netherlands: 325–336. Siokou-Frangou I., Sarantakos K., Christou E.D., 2006. First record of the scyphomedusa Rhopilema nomadica Galil, 1990 (Cnidaria: Scyphozoa: Rhizostomeae) in Greece. Aquatic Invasions 1: 194–195. Streftaris N., Zenetos A., 2006. Alien Marine Species in the Mediterranean – the 100 ‘Worst Invasives’ and their Impact. Mediterranean Marine Science 7: 87–118. Zenetos A., Çinar M.E., Pancucci–Papadopoulou M.A., Harmelin J.G., Furnari G., Andaloro F., Bellou N., Streftaris N., Zibrowius H., 2006. Annotated list of marine alien species in the Mediterranean with records of the worst invasive species. Med. Mar. Sci. 6: 63–118 [2005 ]. Galil B.S., 2007. Seeing Red: Alien species along the Mediterranean coast of Israel. Aquatic Invasions 2: 281–312. Zenetos A., Meriç E., Verlaque M., Galli P., Boudouresque C.-F., Giangrande A., Çinar M.E., Bileceno ğlu M., 2008. Additions to the annotated list of marine alien biota in The Mediterranean with special emphasis on Foraminifera and Parasites. Mediterranean Marine Science 9: 119–165. .
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