TY - JOUR
T1 - El mejillón Semimytilus patagonicus (Mytilida: Mytilidae) y el gusano Pseudonereis gallapagensis (Phyllodocida: Nereididae) como herramientas ecotoxicológica para la contaminación por detergentes en ambientes marinos
AU - Príncipe-Morillo, Fabiola Marilyn
AU - Minaya-Angoma, David
AU - Alvariño-Flores, Lorena
AU - Iannacone-Oliver, José
AU - Rodriguez-Santiago, Amparo
N1 - Publisher Copyright:
© 2022, Universidad de Costa Rica. All rights reserved.
PY - 2022
Y1 - 2022
N2 - Introduction: The bivalve Semimytilus patagonicus is a potentially useful bioindicator because of its feeding mechanism, and the worm Pseudonereis gallapagensis is also interesting as a bioindicator because it is ben-thonic, abundant, and a food source for the squid Doryteuthis gahi. However, their sensitivity to contaminants has not been sufficiently studied. Objective: To test the usefulness of the mussel Semimytilus patagonicus and the polychaete Pseudonereis gal-lapagensis as ecotoxicological tools for detergents in the marine environment. Methods: We used 120 individuals of S. patagonicus from Miraflores and 120 of P. gallapagensis from Barranco (both near the city of Lima, Peru). For the bioassays, we used two anionic detergents (active ingredient, ai, Sodium Dodecylbenzene Sulfonate). For S. patagonicus, with an average valve length of 32.3 ± 6.4 mm, we tested “Double power Ariel®” (90 %) at concentrations of 17.5, 35, 70 and 140 mg ai l-1, evaluated after 48 and 72 h of exposure; and for P. gallapagensis, with a total body length of 20.4 ± 8.8 mm, we tested “Caricia®” at 62.5, 125, 250, 500 and 1 000 mg of ai l-1 at 24, 48 and 72 h of exposure. Results: The LC50 values (Mean Lethal Concentration) were 34.95 mg ia l-1 for S. patagonicus and 102.48 mg ia l-1 for P. gallapagensis at 72 h of exposure. The detergents were toxic for S. patagonicus and slightly toxic for P. gallapagensis. The risk classification for S. patagonicus is “harmful” and for P. gallapagensis “not classifiable”. Conclusions: These two bioindicators allow evaluating the acute toxicity of SDBS-based commercial detergents in the marine aquatic environment.
AB - Introduction: The bivalve Semimytilus patagonicus is a potentially useful bioindicator because of its feeding mechanism, and the worm Pseudonereis gallapagensis is also interesting as a bioindicator because it is ben-thonic, abundant, and a food source for the squid Doryteuthis gahi. However, their sensitivity to contaminants has not been sufficiently studied. Objective: To test the usefulness of the mussel Semimytilus patagonicus and the polychaete Pseudonereis gal-lapagensis as ecotoxicological tools for detergents in the marine environment. Methods: We used 120 individuals of S. patagonicus from Miraflores and 120 of P. gallapagensis from Barranco (both near the city of Lima, Peru). For the bioassays, we used two anionic detergents (active ingredient, ai, Sodium Dodecylbenzene Sulfonate). For S. patagonicus, with an average valve length of 32.3 ± 6.4 mm, we tested “Double power Ariel®” (90 %) at concentrations of 17.5, 35, 70 and 140 mg ai l-1, evaluated after 48 and 72 h of exposure; and for P. gallapagensis, with a total body length of 20.4 ± 8.8 mm, we tested “Caricia®” at 62.5, 125, 250, 500 and 1 000 mg of ai l-1 at 24, 48 and 72 h of exposure. Results: The LC50 values (Mean Lethal Concentration) were 34.95 mg ia l-1 for S. patagonicus and 102.48 mg ia l-1 for P. gallapagensis at 72 h of exposure. The detergents were toxic for S. patagonicus and slightly toxic for P. gallapagensis. The risk classification for S. patagonicus is “harmful” and for P. gallapagensis “not classifiable”. Conclusions: These two bioindicators allow evaluating the acute toxicity of SDBS-based commercial detergents in the marine aquatic environment.
KW - LC
KW - acute toxicity
KW - mortality
KW - mussels
KW - polychaete
UR - http://www.scopus.com/inward/record.url?scp=85140711619&partnerID=8YFLogxK
U2 - 10.15517/rev.biol.trop.2022.50167
DO - 10.15517/rev.biol.trop.2022.50167
M3 - Artículo
AN - SCOPUS:85140711619
SN - 0034-7744
VL - 70
SP - 658
EP - 667
JO - Revista de Biologia Tropical
JF - Revista de Biologia Tropical
IS - 1
M1 - e50167
ER -