Parasitic infection in the scyphozoan Rhizostoma pulmo (Macri, 1778)

Abstract Very little information is reported for parasites of cnidarians, therefore, the present work aimed to investigate parasitic infections in one of the most widespread jellyfish in the Mediterranean Sea, Rhizostoma pulmo. The goals were to determine prevalence and intensity of parasites in R....

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Main Authors: Gregorio Motta, Monica Caffara, Maria Letizia Fioravanti, Massimiliano Bottaro, Massimo Avian, Antonio Terlizzi, Perla Tedesco
Format: Article
Language:English
Published: Nature Portfolio 2023-04-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-023-31693-7
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author Gregorio Motta
Monica Caffara
Maria Letizia Fioravanti
Massimiliano Bottaro
Massimo Avian
Antonio Terlizzi
Perla Tedesco
author_facet Gregorio Motta
Monica Caffara
Maria Letizia Fioravanti
Massimiliano Bottaro
Massimo Avian
Antonio Terlizzi
Perla Tedesco
author_sort Gregorio Motta
collection DOAJ
description Abstract Very little information is reported for parasites of cnidarians, therefore, the present work aimed to investigate parasitic infections in one of the most widespread jellyfish in the Mediterranean Sea, Rhizostoma pulmo. The goals were to determine prevalence and intensity of parasites in R. pulmo, identify the species involved through morphological and molecular analysis, test whether infection parameters differ in different body parts and in relation to jellyfish size. 58 individuals were collected, 100% of them infected with digenean metacercariae. Intensity varied between 18.7 ± 6.7 per individual in 0–2 cm diameter jellyfish up to 505 ± 50.6 in 14 cm ones. Morphological and molecular analyses suggest that the metacercariae belonged to the family Lepocreadiidae and could be possibly assigned to the genus Clavogalea. Prevalence values of 100% suggest that R. pulmo is an important intermediate host in the life cycle of lepocreadiids in the region. Our findings also support the hypothesis that R. pulmo is an important part in the diet of teleost fish, which are reported as definitive hosts of lepocreadiids, since trophic transmission is necessary for these parasites to complete their life cycles. Parasitological data may therefore be useful to investigate fish-jellyfish predation, integrating traditional methods such as gut contents analysis.
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spelling doaj.art-7071dbde49104326afff2c867d4804ae2023-04-09T11:16:10ZengNature PortfolioScientific Reports2045-23222023-04-0113111110.1038/s41598-023-31693-7Parasitic infection in the scyphozoan Rhizostoma pulmo (Macri, 1778)Gregorio Motta0Monica Caffara1Maria Letizia Fioravanti2Massimiliano Bottaro3Massimo Avian4Antonio Terlizzi5Perla Tedesco6Department of Life Science, University of TriesteDepartment of Veterinary Medical Sciences, Alma Mater Studiorum University of BolognaDepartment of Veterinary Medical Sciences, Alma Mater Studiorum University of BolognaDepartment of Integrative Marine Ecology (EMI), Genoa Marine Centre (GMC), Stazione Zoologica Anton Dohrn-Italian National Institute of Marine Biology, Ecology and BiotechnologyDepartment of Life Science, University of TriesteDepartment of Life Science, University of TriesteDepartment of Veterinary Medical Sciences, Alma Mater Studiorum University of BolognaAbstract Very little information is reported for parasites of cnidarians, therefore, the present work aimed to investigate parasitic infections in one of the most widespread jellyfish in the Mediterranean Sea, Rhizostoma pulmo. The goals were to determine prevalence and intensity of parasites in R. pulmo, identify the species involved through morphological and molecular analysis, test whether infection parameters differ in different body parts and in relation to jellyfish size. 58 individuals were collected, 100% of them infected with digenean metacercariae. Intensity varied between 18.7 ± 6.7 per individual in 0–2 cm diameter jellyfish up to 505 ± 50.6 in 14 cm ones. Morphological and molecular analyses suggest that the metacercariae belonged to the family Lepocreadiidae and could be possibly assigned to the genus Clavogalea. Prevalence values of 100% suggest that R. pulmo is an important intermediate host in the life cycle of lepocreadiids in the region. Our findings also support the hypothesis that R. pulmo is an important part in the diet of teleost fish, which are reported as definitive hosts of lepocreadiids, since trophic transmission is necessary for these parasites to complete their life cycles. Parasitological data may therefore be useful to investigate fish-jellyfish predation, integrating traditional methods such as gut contents analysis.https://doi.org/10.1038/s41598-023-31693-7
spellingShingle Gregorio Motta
Monica Caffara
Maria Letizia Fioravanti
Massimiliano Bottaro
Massimo Avian
Antonio Terlizzi
Perla Tedesco
Parasitic infection in the scyphozoan Rhizostoma pulmo (Macri, 1778)
Scientific Reports
title Parasitic infection in the scyphozoan Rhizostoma pulmo (Macri, 1778)
title_full Parasitic infection in the scyphozoan Rhizostoma pulmo (Macri, 1778)
title_fullStr Parasitic infection in the scyphozoan Rhizostoma pulmo (Macri, 1778)
title_full_unstemmed Parasitic infection in the scyphozoan Rhizostoma pulmo (Macri, 1778)
title_short Parasitic infection in the scyphozoan Rhizostoma pulmo (Macri, 1778)
title_sort parasitic infection in the scyphozoan rhizostoma pulmo macri 1778
url https://doi.org/10.1038/s41598-023-31693-7
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