Toxicity investigation of CeO2 nanoparticles coated with glucose and exopolysaccharides levan and pullulan on the bacterium Vibrio fischeri and aquatic organisms Daphnia magna and Danio rerio

2021 ◽  
pp. 105867
Author(s):  
Ivana Milenković ◽  
Ksenija Radotić ◽  
Jovana Despotović ◽  
Branka Lončarević ◽  
Marija Lješević ◽  
...  
Keyword(s):  
Daphnia Magna ◽  
Danio Rerio ◽  
Vibrio Fischeri ◽  
Aquatic Organisms ◽  
Ceo2 Nanoparticles

Interactive toxic effects of agrochemicals on aquatic organisms

1999 ◽  
Vol 40 (1) ◽  
pp. 357-364 ◽  
Author(s):  
A. Kungolos ◽  
P. Samaras ◽  
A. M. Kipopoulou ◽  
A. Zoumboulis ◽  
G. P. Sakellaropoulos
Keyword(s):  
Daphnia Magna ◽  
Marine Bacterium ◽  
Methyl Parathion ◽  
Vibrio Fischeri ◽  
Interactive Effect ◽  
Algal Growth ◽  
Aquatic Organisms ◽  
Interactive Effects ◽  
Selenastrum Capricornutum ◽  
Toxic Compound

The effects of three common agrochemicals, lindane, methyl parathion and atrazine, on crustacean Daphnia magna, alga Selenastrum capricornutum and marine bacterium Vibrio fischeri were investigated in this study. Methyl parathion was the most toxic compound towards all three organisms, while lindane was more toxic to Daphnia magna and Vibrio fischeri than atrazine, and atrazine was more toxic to Selenastrum capricornutum than lindane. Among the three aquatic organisms, Selenastrum capricornutum was most sensitive in detecting lindane and atrazine toxicity, while Daphnia magna was most sensitive in detecting methyl parathion toxicity. The interactive effects of the pesticides were also investigated. The interactive effect between lindane and methyl parathion on survival of Daphnia magna was synergistic, while the ones between lindane and atrazine and between methyl parathion and atrazine were generally additive. The interactive effect of the three pesticides applied together on Daphnia magna was synergistic. The interactive effect of the three pesticides on the growth of Selenastrum capricornutum was antagonistic with few cases of addition, while the effect of all the three pairs of pesticides on algal growth was also antagonistic. The interactive effect of lindane and methyl parathion on Vibrio fischeri was additive.

Acute Toxicity Assays Using Danio Rerio and Daphnia Magna To Assess Hot-Spring Drainage in The Shibukuro and Tama Rivers (Akita, Japan)

2021 ◽  
Author(s):  
Kyo Suwa ◽  
Chiho Takahashi ◽  
Yoshifumi Horie
Keyword(s):  
River Water ◽  
Daphnia Magna ◽  
Danio Rerio ◽  
Hot Spring ◽  
Aquatic Organisms ◽  
Spring Water ◽  
Water Flea ◽  
Heavy Metal Concentrations ◽  
Negative Effect ◽  
Akita Prefecture

Abstract We investigated the lethal toxicity of Shibukuro and Tama river water near the inflow of Tamagawa hot-spring water in Akita Prefecture, Japan. We first measured heavy metal concentrations in both rivers. We detected iron, arsenic, and aluminum; the concentrations of each tended to decrease from upstream to downstream. We next examined the influence of river water on zebrafish Danio rerio and water flea Daphnia magna. We observed lethal effects in both species, with Daphnia magna more sensitive to toxicity than Danio rerio. For both species, the toxic effects of river water decreased with increasing distance downstream from the inflow of hot-spring water. Our results show that the heavy metals discharged from Tamagawa hot spring have a negative effect on aquatic organisms.

Lethal effects of abamectin on the aquatic organisms Daphnia similis, Chironomus xanthus and Danio rerio

Chemosphere ◽  
2012 ◽  
Vol 86 (1) ◽  
pp. 36-40 ◽  
Author(s):  
Andréa Novelli ◽  
Bruna Horvath Vieira ◽  
Daniela Cordeiro ◽  
Luciana Teresa Dias Cappelini ◽  
Eny Maria Vieira ◽  
...  
Keyword(s):  
Danio Rerio ◽  
Aquatic Organisms ◽  
Lethal Effects ◽  
Daphnia Similis

Silver nanoparticles and silver nitrate induce high toxicity to Pseudokirchneriella subcapitata, Daphnia magna and Danio rerio

2014 ◽  
Vol 466-467 ◽  
pp. 232-241 ◽  
Author(s):  
Fabianne Ribeiro ◽  
Julián Alberto Gallego-Urrea ◽  
Kerstin Jurkschat ◽  
Alison Crossley ◽  
Martin Hassellöv ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Silver Nitrate ◽  
Daphnia Magna ◽  
Danio Rerio ◽  
Pseudokirchneriella Subcapitata ◽  
High Toxicity

scholarly journals Índices de calidad ambiental de aguas del Arroyo Caañabe mediante tests microbiológicos y ecotoxicológico

2016 ◽  
Vol 11 (3) ◽  
pp. 548
Author(s):  
Tomás Rodrigo López Arias ◽  
Virginia Florencia Fernández Peralta ◽  
Deidamia Mercedes Franco de Diana ◽  
Edgar Fidel Galeano Delgado ◽  
Fernando Salvador Alonso Márquez ◽  
...  
Keyword(s):  
Daphnia Magna ◽  
Allium Cepa ◽  
Danio Rerio ◽  
Lactuca Sativa ◽  
E Coli ◽  
Los Grupos

El Arroyo Caañabe, es un curso de agua que corre a través de los Departamentos Central y Paraguarí (República del Paraguay). Las descargas de origen agropecuario, urbano e industrial contaminan sus aguas. En este trabajo se evalúa la calidad del arroyo mediante sus características fisicoquímicas, ecotoxicológicas, microbiológicas y se la comparan con la legislación vigente. Se colectaron muestras en los meses de Julio y Setiembre del año 2014. Se estudiaron tres sitios denominados S1, ubicado en aguas arriba de la Ciudad de Carapegua; S2 en la intersección del arroyo con la Ruta 1, y S3, en la zona límite de las ciudades de Carapegua y Nueva Italia. Se realizaron ensayos de toxicidad aguda con Daphnia magna, Lactuca sativa, y alevines de Danio rerio; además de ensayos crónicos en Tetradesmus wisconsinenesis, D. rerio y Allium cepa. Se evaluaron los grupos y especies microbianos siguientes: aerobios mesófilos, enterobacterias, coliformes totales, coliformes fecales, E. coli, Pseudomona aeruginosa, mohos y levaduras; además se determinaron índices de calidad y de contaminación. Los resultados indican que las aguas del arroyo presentaron características de clase II y de clase III según el padrón establecido por la Secretaría del Ambiente del Paraguay. El índice de calidad de agua (ICA) arrojó valores comprendidos entre 52 y 62 lo que otorga la clasificación de “regular”; mientras que el índice de contaminación trófica (ICOTRO) presentó valores entre 0,12 y 0.26, indicando “eutrofización”. Los recuentos de coliformes fueron superiores en el segundo muestreo, aunque dentro lo establecido por la norma. La presencia de P. aeruginosa en los tres puntos constituye un riesgo para la salud. Ensayos ecotoxicológicos agudos mostraron que las aguas presentan escasos efectos letales, no obstante los ensayos crónicos en A. cepa y el test de micronúcleos en D. rerio indican potenciales efectos citotóxicos y genotóxicos de las aguas del Arroyo Caañabe.

scholarly journals Toxicity of five anilines to crustaceans, protozoa and bacteria

2010 ◽  
Vol 75 (9) ◽  
pp. 1291-1302 ◽  
Author(s):  
Mariliis Sihtmäe ◽  
Monika Mortimer ◽  
Anne Kahru ◽  
Irina Blinova
Keyword(s):  
Daphnia Magna ◽  
Vibrio Fischeri ◽  
Environmental Pollutants ◽  
Industrial Effluents ◽  
General Tendency ◽  
Test Species ◽  
Mechanisms Of Toxicity ◽  
Aliivibrio Fischeri ◽  
Integrated Project ◽  
The Eu

Aromatic amines (anilines and related derivates) are an important class of environmental pollutants that can be released to the aquatic environment as industrial effluents or as breakdown products of pesticides and dyes. The toxicities of aniline, 2-chloroaniline, 3-chloroaniline, 4-chloroaniline and 3,5-dichloroaniline towards a multitrophic test battery comprised of bacteria Aliivibrio fischeri (formerly Vibrio fischeri), a ciliated protozoan Tetrahymena thermophila and two crustaceans (Daphnia magna and Thamnocephalus platyurus) were investigated. Under the applied test conditions, the toxicities of the anilines notably varied among the test species. The bacteria and protozoa were much less sensitive towards the anilines than the crustaceans: EC50 values 13-403 mg L-1 versus 0.13-15.2 mg L-1. No general tendency between toxicity and the chemical structure of the anilines (the degree of chloro-substitution and the position of the chloro-substituents) was found in the case of all the tested aquatic species. The replacement of the artificial test medium (ATM) by the river water remarkably decreased the toxicity of anilines to crustaceans but not to protozoa. This research is part of the EU 6th Framework Integrated Project OSIRIS, in which ecotoxicogenomic studies of anilines (e.g., for Daphnia magna) will also be performed that may help to clarify the mechanisms of toxicity of different anilines.

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