RT Journal Article
T1 New Invertebrate Vectors of Okadaic Acid from the North Atlantic Waters—Portugal (Azores and Madeira) and Morocco
A1 Silva, Marisa
A1 Rodríguez Filgueiras, Inés
A1 Barreiro, Aldo
A1 Kaufmann, Manfred
A1 Neto, Ana Isabel
A1 Hassouani, Meryem
A1 Sabour, Brahim
A1 Alfonso Rancaño, María Amparo
A1 Botana López, Luis Miguel
A1 Vasconcelos, Vitor
K1 Okadaic acid
K1 New vectors
K1 Madeira Island
K1 São Miguel Island
K1 Morocco
AB Okadaic acid and its analogues are potent phosphatase inhibitors that cause Diarrheic Shellfish Poisoning (DSP) through the ingestion of contaminated shellfish by humans. This group of toxins is transmitted worldwide but the number of poisoning incidents has declined over the last 20 years due to legislation and monitoring programs that were implemented for bivalves. In the summer of 2012 and 2013, we collected a total of 101 samples of 22 different species that were made up of benthic and subtidal organisms such echinoderms, crustaceans, bivalves and gastropods from Madeira, São Miguel Island (Azores archipelago) and the northwestern coast of Morocco. The samples were analyzed by UPLC-MS/MS. Our main objective was to detect new vectors for these biotoxins. We can report nine new vectors for these toxins in the North Atlantic: Astropecten aranciacus, Arbacia lixula, Echinaster sepositus, Holothuria sanctori, Ophidiaster ophidianus, Onchidella celtica, Aplysia depilans, Patella spp., and Stramonita haemostoma. Differences in toxin contents among the species were found. Even though low concentrations were detected, the levels of toxins that were present, especially in edible species, indicate the importance of these types of studies. Routine monitoring should be extended to comprise a wider number of vectors other than for bivalves of okadaic acid and its analogues
PB MDPI
YR 2015
FD 2015
LK http://hdl.handle.net/10347/23588
UL http://hdl.handle.net/10347/23588
LA eng
NO Silva, M.; Rodriguez, I.; Barreiro, A.; Kaufmann, M.; Neto, A.I.; Hassouani, M.; Sabour, B.; Alfonso, A.; Botana, L.M.; Vasconcelos, V. New Invertebrate Vectors of Okadaic Acid from the North Atlantic Waters—Portugal (Azores and Madeira) and Morocco. Toxins 2015, 7, 5337-5347
NO This research was partially funded by the FCT project UID/Multi/04423/2013 and by the projects MARBIOTECH (reference NORTE-07-0124-FEDER-000047) within the SR&TD Integrated Program MARVALOR—Building research and innovation capacity for improved management and valorization of marine resources, supported by the Programa Operacional Regional do Norte (ON.2-O Novo Norte) and NOVOMAR (reference 0687-NOVOMAR-1-P), supported by the European Regional Development Fund. MS acknowledge also FCT for the grant SFRH/BD/73269/2010 and Ana Regueiras, Isadora Diniz, Afonso Prestes and Manuela Maranhão. This research was also partially funded by the FCT-Portugal/CNRST-Morocco Cooperation Convention under the project 1006/13 CNR “Marine emergent toxins in the north east Atlantic (Portugal-Morocco) produced by microalgae and bacteria”. The research leading to USC results has received funding from the following FEDER cofunded-grants, from CDTI and Technological Funds. Supported by Ministerio de Economía y Competitividad, AGL2012-40185-CO2-01 and Consellería de Cultura, Educación e Ordenación Universitaria, GRC2013-016. Inés Rodriguez is supported by a fellowship from Subprograma de Formación de Personal Investigador (AGL2012-40185-CO2-01), Spain
DS Minerva
RD 23 abr 2026