2014
DOI: 10.21472/bjbs.010104
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Biota toxicity to herbicide Paraquat in Brazilian Northeast littoral reservoirs: need for a biomonitoring program for watershed management

Abstract: We present the original results of set of toxicity tests of the herbicide Paraquat, used in sugar cane fields, and the cultivation of pineapple and, Eucalyptus, on zooplankton and benthos organisms from reservoirs of the Brazilian Northeast Littoral Zone. We demonstrate that Macrobrachium amazonicum (prawn), Pomacea lineata (snail) and Daphnia similis (cladoceran) are several orders of magnitude more sensitive than test organisms (aquatic insects, amphipods, and cladocerans) classically used in temperate regio… Show more

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Cited by 3 publications
(4 citation statements)
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“…Gil-Diaz et al (2021) obtained 0.31 µl L -1 , with a 95% confidence interval with a lower limit of 0.26 µl L -1 and an upper limit of 0.35 µl L -1 for the M. olfersii shrimp. Likewise, Barbosa et al (2014) mentions that Daphnia similis had LC 50 of 4 mg L -1 and Macrobrachium sp. of 5 mg L -1 .…”
Section: Resultsmentioning
confidence: 99%
“…Gil-Diaz et al (2021) obtained 0.31 µl L -1 , with a 95% confidence interval with a lower limit of 0.26 µl L -1 and an upper limit of 0.35 µl L -1 for the M. olfersii shrimp. Likewise, Barbosa et al (2014) mentions that Daphnia similis had LC 50 of 4 mg L -1 and Macrobrachium sp. of 5 mg L -1 .…”
Section: Resultsmentioning
confidence: 99%
“…En mamíferos es de 110 mg Kg -1 (ratas) y en aves de 35 mg Kg -1 , mientras que en peces la toxicidad aguda en la trucha arcoiris alcanza una CL 50 de 19 mg L -1 (UNEP, 2012). En invertebrados acuáticos como los neonatos de Daphnia similis la CL 50 es de 0,017 μg L -1 a < 24 h (Barbosa et al, 2014).…”
Section: Discussionunclassified
“…La CL 50 encontrada para M. olfersii (0,31 µl L -1 ) utilizando la forma comercial Dasurquat® fue menor al rango encontrado por otros autores para distintos invertebrados acuáticos (desde 1,4 ppm hasta 100 ppm) con el catión Paraquat. En contraste, Barbosa et al (2014) indicaron que los juveniles M. amazonicum presentaron una CL 50 de 5,0 μg L -1 después de 96 horas. Lo mencionado destaca la variabilidad de la respuesta de la toxicidad aguda, aún entre especies del mismo género, y permite destacar que el langostino M. olfersii tiene una mayor sensibilidad al herbicida al reportar una CL 50 casi 56 veces más baja que la determinada para O. niloticus.…”
Section: Discussionunclassified
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