The adverse effect of the herbicide atrazine on the reproduction in the intertidal varunid crab Neohelice granulata (Dana, 1851)
Abstract The effects of a 32-d exposure to atrazine (0, 2.5, 5 and 15 mg/L) were evaluated in the estuarine crab Neohelice granulata, both in terms of larvae hatching and ovarian re-maturation. No significant differences (p>0.05) were detected either in incubation time or the number of hatched la...
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2015
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_23524855_v1_n_p1_Alvarez http://hdl.handle.net/20.500.12110/paper_23524855_v1_n_p1_Alvarez |
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paper:paper_23524855_v1_n_p1_Alvarez2023-06-08T16:35:48Z The adverse effect of the herbicide atrazine on the reproduction in the intertidal varunid crab Neohelice granulata (Dana, 1851) Atrazine Crabs Larvae Ovary Reproduction Crustacea Decapoda (Crustacea) Varunidae Abstract The effects of a 32-d exposure to atrazine (0, 2.5, 5 and 15 mg/L) were evaluated in the estuarine crab Neohelice granulata, both in terms of larvae hatching and ovarian re-maturation. No significant differences (p>0.05) were detected either in incubation time or the number of hatched larvae per female. However, atrazine, particularly at the two higher concentrations, caused several larval abnormalities including hydropsy, hyperpigmented body, atrophy of spines and setae, and atrophy of eyes. At the end of the 32-d exposure period, all assayed atrazine concentrations produced a significant (p<0.05) reabsorption of previtellogenic oocytes, compared to the control treatment. Although no changes in the gonadosomatic index were detected (p>0.05), the proportion of vitellogenic oocytes decreased at all atrazine concentrations, reaching significance at 5 mg/l (p<0.05). These results highlight the potential risk of atrazine for crustacean reproduction, both in terms of altered ovarian maturation and abnormal hatched larvae. © 2015 Published by Elsevier B.V. 2015 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_23524855_v1_n_p1_Alvarez http://hdl.handle.net/20.500.12110/paper_23524855_v1_n_p1_Alvarez |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Atrazine Crabs Larvae Ovary Reproduction Crustacea Decapoda (Crustacea) Varunidae |
| spellingShingle |
Atrazine Crabs Larvae Ovary Reproduction Crustacea Decapoda (Crustacea) Varunidae The adverse effect of the herbicide atrazine on the reproduction in the intertidal varunid crab Neohelice granulata (Dana, 1851) |
| topic_facet |
Atrazine Crabs Larvae Ovary Reproduction Crustacea Decapoda (Crustacea) Varunidae |
| description |
Abstract The effects of a 32-d exposure to atrazine (0, 2.5, 5 and 15 mg/L) were evaluated in the estuarine crab Neohelice granulata, both in terms of larvae hatching and ovarian re-maturation. No significant differences (p>0.05) were detected either in incubation time or the number of hatched larvae per female. However, atrazine, particularly at the two higher concentrations, caused several larval abnormalities including hydropsy, hyperpigmented body, atrophy of spines and setae, and atrophy of eyes. At the end of the 32-d exposure period, all assayed atrazine concentrations produced a significant (p<0.05) reabsorption of previtellogenic oocytes, compared to the control treatment. Although no changes in the gonadosomatic index were detected (p>0.05), the proportion of vitellogenic oocytes decreased at all atrazine concentrations, reaching significance at 5 mg/l (p<0.05). These results highlight the potential risk of atrazine for crustacean reproduction, both in terms of altered ovarian maturation and abnormal hatched larvae. © 2015 Published by Elsevier B.V. |
| title |
The adverse effect of the herbicide atrazine on the reproduction in the intertidal varunid crab Neohelice granulata (Dana, 1851) |
| title_short |
The adverse effect of the herbicide atrazine on the reproduction in the intertidal varunid crab Neohelice granulata (Dana, 1851) |
| title_full |
The adverse effect of the herbicide atrazine on the reproduction in the intertidal varunid crab Neohelice granulata (Dana, 1851) |
| title_fullStr |
The adverse effect of the herbicide atrazine on the reproduction in the intertidal varunid crab Neohelice granulata (Dana, 1851) |
| title_full_unstemmed |
The adverse effect of the herbicide atrazine on the reproduction in the intertidal varunid crab Neohelice granulata (Dana, 1851) |
| title_sort |
adverse effect of the herbicide atrazine on the reproduction in the intertidal varunid crab neohelice granulata (dana, 1851) |
| publishDate |
2015 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_23524855_v1_n_p1_Alvarez http://hdl.handle.net/20.500.12110/paper_23524855_v1_n_p1_Alvarez |
| _version_ |
1768545026373058560 |