Toxin Levels and Profiles in Microalgae from the North-Western Adriatic Sea—15 Years of Studies on Cultured Species

The Northern Adriatic Sea is the area of the Mediterranean Sea where eutrophication and episodes related to harmful algae have occurred most frequently since the 1970s. In this area, which is highly exploited for mollusk farming, the first occurrence of human intoxication due to shellfish consumptio...

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Main Authors: Elena Riccardi, Monica Cangini, Silvia Pigozzi, Marinella Pompei, Luciana Tartaglione, Anna Milandri, Ernesto Fattorusso, Martino Forino, Carmela Dell’Aversano, Patrizia Ciminiello, Silvana Vanucci, Manuela Riccardi, Laura Pezzolesi, Franca Guerrini, Rossella Pistocchi
Format: Article
Language:English
Published: MDPI AG 2012-01-01
Series:Marine Drugs
Subjects:
Online Access:http://www.mdpi.com/1660-3397/10/1/140/
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author Elena Riccardi
Monica Cangini
Silvia Pigozzi
Marinella Pompei
Luciana Tartaglione
Anna Milandri
Ernesto Fattorusso
Martino Forino
Carmela Dell’Aversano
Patrizia Ciminiello
Silvana Vanucci
Manuela Riccardi
Laura Pezzolesi
Franca Guerrini
Rossella Pistocchi
author_facet Elena Riccardi
Monica Cangini
Silvia Pigozzi
Marinella Pompei
Luciana Tartaglione
Anna Milandri
Ernesto Fattorusso
Martino Forino
Carmela Dell’Aversano
Patrizia Ciminiello
Silvana Vanucci
Manuela Riccardi
Laura Pezzolesi
Franca Guerrini
Rossella Pistocchi
author_sort Elena Riccardi
collection DOAJ
description The Northern Adriatic Sea is the area of the Mediterranean Sea where eutrophication and episodes related to harmful algae have occurred most frequently since the 1970s. In this area, which is highly exploited for mollusk farming, the first occurrence of human intoxication due to shellfish consumption occurred in 1989, nearly 10 years later than other countries in Europe and worldwide that had faced similar problems. Until 1997, Adriatic mollusks had been found to be contaminated mostly by diarrhetic shellfish poisoning toxins (i.e., okadaic acid and dinophysistoxins) that, along with paralytic shellfish poisoning toxins (i.e., saxitoxins), constitute the most common marine biotoxins. Only once, in 1994, a toxic outbreak was related to the occurrence of paralytic shellfish poisoning toxins in the Adriatic coastal waters. Moreover, in the past 15 years, the Adriatic Sea has been characterized by the presence of toxic or potentially toxic algae, not highly widespread outside Europe, such as species producing yessotoxins (i.e., Protoceratium reticulatum, Gonyaulax spinifera and Lingulodinium polyedrum), recurrent blooms of the potentially ichthyotoxic species Fibrocapsa japonica and, recently, by blooms of palytoxin-like producing species of the Ostreopsis genus. This review is aimed at integrating monitoring data on toxin spectra and levels in mussels farmed along the coast of the Emilia-Romagna region with laboratory studies performed on the species involved in the production of those toxins; toxicity studies on toxic or potentially toxic species that have recently appeared in this area are also reviewed. Overall, reviewed data are related to: (i) the yessotoxins producing species P. reticulatum, G. spinifera and L. polyedrum, highlighting genetic and toxic characteristics; (ii) Adriatic strains of Alexandrium minutum, Alexandrium ostenfeldii and Prorocentrum lima whose toxic profiles are compared with those of strains of different geographic origins; (iii) F. japonica and Ostreopsis cf. ovata toxicity. Moreover, new data concerning domoic acid production by a Pseudo-nitzschia multistriata strain, toxicity investigations on a Prorocentrum cf. levis, and on presumably ichthyotoxic species, Heterosigma akashiwo and Chattonella cf. subsalsa, are also reported.
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spelling doaj.art-a350bdb92c00432bb3567d7ef240fbe62022-12-22T04:24:41ZengMDPI AGMarine Drugs1660-33972012-01-0110114016210.3390/md10010140Toxin Levels and Profiles in Microalgae from the North-Western Adriatic Sea—15 Years of Studies on Cultured SpeciesElena RiccardiMonica CanginiSilvia PigozziMarinella PompeiLuciana TartaglioneAnna MilandriErnesto FattorussoMartino ForinoCarmela Dell’AversanoPatrizia CiminielloSilvana VanucciManuela RiccardiLaura PezzolesiFranca GuerriniRossella PistocchiThe Northern Adriatic Sea is the area of the Mediterranean Sea where eutrophication and episodes related to harmful algae have occurred most frequently since the 1970s. In this area, which is highly exploited for mollusk farming, the first occurrence of human intoxication due to shellfish consumption occurred in 1989, nearly 10 years later than other countries in Europe and worldwide that had faced similar problems. Until 1997, Adriatic mollusks had been found to be contaminated mostly by diarrhetic shellfish poisoning toxins (i.e., okadaic acid and dinophysistoxins) that, along with paralytic shellfish poisoning toxins (i.e., saxitoxins), constitute the most common marine biotoxins. Only once, in 1994, a toxic outbreak was related to the occurrence of paralytic shellfish poisoning toxins in the Adriatic coastal waters. Moreover, in the past 15 years, the Adriatic Sea has been characterized by the presence of toxic or potentially toxic algae, not highly widespread outside Europe, such as species producing yessotoxins (i.e., Protoceratium reticulatum, Gonyaulax spinifera and Lingulodinium polyedrum), recurrent blooms of the potentially ichthyotoxic species Fibrocapsa japonica and, recently, by blooms of palytoxin-like producing species of the Ostreopsis genus. This review is aimed at integrating monitoring data on toxin spectra and levels in mussels farmed along the coast of the Emilia-Romagna region with laboratory studies performed on the species involved in the production of those toxins; toxicity studies on toxic or potentially toxic species that have recently appeared in this area are also reviewed. Overall, reviewed data are related to: (i) the yessotoxins producing species P. reticulatum, G. spinifera and L. polyedrum, highlighting genetic and toxic characteristics; (ii) Adriatic strains of Alexandrium minutum, Alexandrium ostenfeldii and Prorocentrum lima whose toxic profiles are compared with those of strains of different geographic origins; (iii) F. japonica and Ostreopsis cf. ovata toxicity. Moreover, new data concerning domoic acid production by a Pseudo-nitzschia multistriata strain, toxicity investigations on a Prorocentrum cf. levis, and on presumably ichthyotoxic species, Heterosigma akashiwo and Chattonella cf. subsalsa, are also reported.http://www.mdpi.com/1660-3397/10/1/140/Adriatic Seabiointoxicationsharmful algal bloomstoxinsichthyotoxic species
spellingShingle Elena Riccardi
Monica Cangini
Silvia Pigozzi
Marinella Pompei
Luciana Tartaglione
Anna Milandri
Ernesto Fattorusso
Martino Forino
Carmela Dell’Aversano
Patrizia Ciminiello
Silvana Vanucci
Manuela Riccardi
Laura Pezzolesi
Franca Guerrini
Rossella Pistocchi
Toxin Levels and Profiles in Microalgae from the North-Western Adriatic Sea—15 Years of Studies on Cultured Species
Marine Drugs
Adriatic Sea
biointoxications
harmful algal blooms
toxins
ichthyotoxic species
title Toxin Levels and Profiles in Microalgae from the North-Western Adriatic Sea—15 Years of Studies on Cultured Species
title_full Toxin Levels and Profiles in Microalgae from the North-Western Adriatic Sea—15 Years of Studies on Cultured Species
title_fullStr Toxin Levels and Profiles in Microalgae from the North-Western Adriatic Sea—15 Years of Studies on Cultured Species
title_full_unstemmed Toxin Levels and Profiles in Microalgae from the North-Western Adriatic Sea—15 Years of Studies on Cultured Species
title_short Toxin Levels and Profiles in Microalgae from the North-Western Adriatic Sea—15 Years of Studies on Cultured Species
title_sort toxin levels and profiles in microalgae from the north western adriatic sea 15 years of studies on cultured species
topic Adriatic Sea
biointoxications
harmful algal blooms
toxins
ichthyotoxic species
url http://www.mdpi.com/1660-3397/10/1/140/
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