Validation test with embryonic and larval stages of Chordodes nobilii (Gordiida, Nematomorpha): sensitivity to three reference toxicants

Chemosphere
Cecilia L AchiornoLucrecia Ferrari

Abstract

Chordodes nobilii is a parasite whose pre- and postparasitic stages are found in different types of freshwater bodies. Due to the peculiarities of its life cycle, it acts as a link between freshwater bodies and terrestrial ecosystems. There is little toxicological information on the group Gordiida. It is only known that embryos and larvae of C. nobilii are sensitive to glyphosate and malathion at relevant concentrations in the environment. On this basis, the aims of this study were to characterize the sensitivity of the pre-parasitic stages of C. nobilii to three reference toxicants: sodium dodecyl sulfate (SDS), cadmium chloride and potassium dichromate (Cr(6+)), and to validate a previous experimental protocol for ecotoxicological risk assessment. The protocol involved acute exposure of early embryonic stages and larvae to the three toxicants for 96 h and 48 h, respectively. Embryo development was inhibited only by Cr(6+) which presented a IC(50) of 0.71 mg Cr(6+)L(-1). The development of the eggs exposed to SDS and those exposed to cadmium chloride showed no differences as compared to that of controls. However, the infective capacity of larvae derived from the eggs exposed to the three toxicants was lower than that of contro...Continue Reading

References

May 11, 1999·Parasitology Today·B SuresH Taraschewski
Jul 25, 2000·Ecotoxicology and Environmental Safety·M L BouchéG Vernet
Nov 1, 2000·Chemosphere·L A LieneschJ A Bantle
Jul 28, 2004·Parasitology Today·M ZukL T Luong
Jul 26, 2006·Parasitology·F PontonD G Biron
Apr 9, 2008·Chemosphere·Cecilia L AchiornoLucrecia Ferrari
Sep 26, 2008·Parasite : Journal De La Société Française De Parasitologie·B Sures
Apr 29, 2009·Ecotoxicology·Cecilia L AchiornoLucrecia Ferrari

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Citations

Dec 21, 2012·The Journal of Parasitology·Matthew G BolekBen Hanelt
May 3, 2013·Bulletin of Environmental Contamination and Toxicology·Martina Mastrángelo, Lucrecia Ferrari
Jan 25, 2012·Ecotoxicology and Environmental Safety·Anabella GiustoLucrecia Ferrari
May 22, 2017·Archives of Environmental Contamination and Toxicology·Olga N LukyanovaAndrey A Mazur

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