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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Autores principales: Álvarez, N.B., Avigliano, L., Loughlin, C.M., Rodríguez, E.M.
Formato: JOUR
Materias:
Atrazine
Crabs
Larvae
Ovary
Reproduction
Crustacea
Decapoda (Crustacea)
Varunidae
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_23524855_v1_n_p1_Alvarez
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_23524855_v1_n_p1_Alvarez
record_format dspace
spelling todo:paper_23524855_v1_n_p1_Alvarez2023-10-03T16:41:14Z The adverse effect of the herbicide atrazine on the reproduction in the intertidal varunid crab Neohelice granulata (Dana, 1851) Álvarez, N.B. Avigliano, L. Loughlin, C.M. Rodríguez, E.M. 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. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar 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
Álvarez, N.B.
Avigliano, L.
Loughlin, C.M.
Rodríguez, E.M.
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.
format JOUR
author Álvarez, N.B.
Avigliano, L.
Loughlin, C.M.
Rodríguez, E.M.
author_facet Álvarez, N.B.
Avigliano, L.
Loughlin, C.M.
Rodríguez, E.M.
author_sort Álvarez, N.B.
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)
url http://hdl.handle.net/20.500.12110/paper_23524855_v1_n_p1_Alvarez
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