Effect of synthetic juvenoid hormone (Pyriproxyfen) on the larval stages and survival rates of fresh water prown (Macrobrachium rosenbergii)
Possible effects of a synthetic juvenoid hormone (pyriproxyfen) on larval development, metamorphosis and survival of a crustacean octapod, Macrobrachium rosenbergii, was studied. Although Pyriproxifen is well known as an effective pest control product, our knowledge about its effects on crustacean metamorphosis, especially on larval stages is yet little. Macrobrachium rosenbergii is a suitable invertebrate species in the neurobiological and endocrinological researches. The species has 11 larval stages with obvious morphological features for every stage. In this study, larvae of the species were treated with 0.01, 0.05 and 0.1ppm of Pyriproxifen against a group of control for which xylene was used. In the first day of exposure to the Pyriproxifen, all larvae were in the 1st larval stage. We studied the larval stages in samples obtained in different days and percentage of survival in the end of metamorphosis for treatment and control groups. The results showed that all concentrations of Pyriproxyfen significantly caused a delayed larval development and metamorphosis. Furthermore, the post larval survival rates of all treatment groups were less than control. These results suggest that synthetic juvenoid hormone retards the larval morphological development in Macrobrachium rosenbergii, and decreases the survival of the species.
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Format: | Journal Contribution biblioteca |
Language: | Persian |
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2006
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Subjects: | Pyriproxyfen, Macrobrachium rosenbergii, Juvenoid hormone, Larval stage, Neurobiological, Endocrinological, Freshwater, |
Online Access: | http://hdl.handle.net/1834/12046 |
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dig-aquadocs-1834-120462021-05-19T06:44:51Z Effect of synthetic juvenoid hormone (Pyriproxyfen) on the larval stages and survival rates of fresh water prown (Macrobrachium rosenbergii) Ghasemzade, F. Moghimi, A. Lotfi, A. Pyriproxyfen Macrobrachium rosenbergii Juvenoid hormone Larval stage Neurobiological Endocrinological Freshwater Possible effects of a synthetic juvenoid hormone (pyriproxyfen) on larval development, metamorphosis and survival of a crustacean octapod, Macrobrachium rosenbergii, was studied. Although Pyriproxifen is well known as an effective pest control product, our knowledge about its effects on crustacean metamorphosis, especially on larval stages is yet little. Macrobrachium rosenbergii is a suitable invertebrate species in the neurobiological and endocrinological researches. The species has 11 larval stages with obvious morphological features for every stage. In this study, larvae of the species were treated with 0.01, 0.05 and 0.1ppm of Pyriproxifen against a group of control for which xylene was used. In the first day of exposure to the Pyriproxifen, all larvae were in the 1st larval stage. We studied the larval stages in samples obtained in different days and percentage of survival in the end of metamorphosis for treatment and control groups. The results showed that all concentrations of Pyriproxyfen significantly caused a delayed larval development and metamorphosis. Furthermore, the post larval survival rates of all treatment groups were less than control. These results suggest that synthetic juvenoid hormone retards the larval morphological development in Macrobrachium rosenbergii, and decreases the survival of the species. Published 2018-03-06T12:12:33Z 2018-03-06T12:12:33Z 2006 Journal Contribution Refereed 1026-1354 http://hdl.handle.net/1834/12046 fa http://isfj.areo.ir/ pp.139-150 Iran |
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Pyriproxyfen Macrobrachium rosenbergii Juvenoid hormone Larval stage Neurobiological Endocrinological Freshwater Pyriproxyfen Macrobrachium rosenbergii Juvenoid hormone Larval stage Neurobiological Endocrinological Freshwater |
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Pyriproxyfen Macrobrachium rosenbergii Juvenoid hormone Larval stage Neurobiological Endocrinological Freshwater Pyriproxyfen Macrobrachium rosenbergii Juvenoid hormone Larval stage Neurobiological Endocrinological Freshwater Ghasemzade, F. Moghimi, A. Lotfi, A. Effect of synthetic juvenoid hormone (Pyriproxyfen) on the larval stages and survival rates of fresh water prown (Macrobrachium rosenbergii) |
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Possible effects of a synthetic juvenoid hormone (pyriproxyfen) on larval development, metamorphosis and survival of a crustacean octapod, Macrobrachium rosenbergii, was studied. Although Pyriproxifen is well known as an effective pest control product, our knowledge about its effects on crustacean metamorphosis, especially on larval stages is yet little. Macrobrachium rosenbergii is a suitable invertebrate species in the neurobiological and endocrinological researches. The species has 11 larval stages with obvious morphological features for every stage. In this study, larvae of the species were treated with 0.01, 0.05 and 0.1ppm of Pyriproxifen against a group of control for which xylene was used. In the first day of exposure to the Pyriproxifen, all larvae were in the 1st larval stage. We studied the larval stages in samples obtained in different days and percentage of survival in the end of metamorphosis for treatment and control groups. The results showed that all concentrations of Pyriproxyfen significantly caused a delayed larval development and metamorphosis. Furthermore, the post larval survival rates of all treatment groups were less than control. These results suggest that synthetic juvenoid hormone retards the larval morphological development in Macrobrachium rosenbergii, and decreases the survival of the species. |
format |
Journal Contribution |
topic_facet |
Pyriproxyfen Macrobrachium rosenbergii Juvenoid hormone Larval stage Neurobiological Endocrinological Freshwater |
author |
Ghasemzade, F. Moghimi, A. Lotfi, A. |
author_facet |
Ghasemzade, F. Moghimi, A. Lotfi, A. |
author_sort |
Ghasemzade, F. |
title |
Effect of synthetic juvenoid hormone (Pyriproxyfen) on the larval stages and survival rates of fresh water prown (Macrobrachium rosenbergii) |
title_short |
Effect of synthetic juvenoid hormone (Pyriproxyfen) on the larval stages and survival rates of fresh water prown (Macrobrachium rosenbergii) |
title_full |
Effect of synthetic juvenoid hormone (Pyriproxyfen) on the larval stages and survival rates of fresh water prown (Macrobrachium rosenbergii) |
title_fullStr |
Effect of synthetic juvenoid hormone (Pyriproxyfen) on the larval stages and survival rates of fresh water prown (Macrobrachium rosenbergii) |
title_full_unstemmed |
Effect of synthetic juvenoid hormone (Pyriproxyfen) on the larval stages and survival rates of fresh water prown (Macrobrachium rosenbergii) |
title_sort |
effect of synthetic juvenoid hormone (pyriproxyfen) on the larval stages and survival rates of fresh water prown (macrobrachium rosenbergii) |
publishDate |
2006 |
url |
http://hdl.handle.net/1834/12046 |
work_keys_str_mv |
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