INVESTIGADORES
AVERBUJ Andres
artículos
Título:
Acute toxicity of tributyltin to encapsulated embryos of a marine gastropod
Autor/es:
AVERBUJ, A.; PRIMOST, M.A.; GIULIANELLI, S.; BIGATTI, G.
Revista:
MOLLUSCAN RESEARCH
Editorial:
MAGNOLIA PRESS
Referencias:
Lugar: Auckland; Año: 2018 vol. 38 p. 29 - 33
ISSN:
1323-5818
Resumen:
The marine gastropod Buccinanops globulosus is known to have highimposex incidence in areas moderately polluted by tributyltin (TBT).Acute toxicity was previously studied in adults but no information is known aboutembryonic intracapsular development. To estimate the potential effects oforganotin pollution on the progeny of B.globulosus, acute toxicity tests were conducted on encapsulated andexcapsulated pre-hatching embryos. The lethal median concentration estimatedfor 96h (LC50 96h) in B.globulosus excapsulated embryos was 196.70 µg TBTCl L-1, whilein encapsulated embryos it was 2951.28 µg TBTCl L-1. The LC5096h was 15-fold higher for encapsulated embryos compared to excapsulatedembryos, denoting egg capsule protection against pollutants from the external environment.Our results show that TBT pollution can have significant effects in molluscsother than the chronic effect of imposex.
