Lethal and sublethal effects of chlorpyrifos exposure on adult and larval stages of the grass shrimp, Palaemonetes pugio.
Saved in:
| Title: | Lethal and sublethal effects of chlorpyrifos exposure on adult and larval stages of the grass shrimp, Palaemonetes pugio. |
|---|---|
| Authors: | Key, Peter B.1, Fulton, Michael H.1 |
| Source: | Journal of Environmental Science & Health. Part B. Pesticides, Food Contaminants & Agricultural Wastes. Oct1993, Vol. 28 Issue 5, p621-640. 20p. |
| Abstract: | This study examined the effects of chlorpyrifos, an organophosphorus insecticide, on newly hatched to adult life stages of the grass shrimp, Palaemonetes pugio. In laboratory experiments, adult and 18‐day old larval grass shrimp were exposed in separate 96‐h acute toxicity tests to establish a range of LC50's for these two life stages. The adult 96‐h LC50 was 0.37 μg/L with the 18‐day old larval 96‐h LC50 being 0.44 μg/L. In order to simulate field conditions, 6‐h pulse exposures of chlorpyrifos at 10‰ salinity were performed every 5 days during the grass shrimp larval life cycle. The test was carried out to metamorphosis of the surviving larvae to postiarvae with four 6‐h pulse doses. The LC50's ranged from 0.94 μg/L after the first pulse exposure to 0.29 μg/L at the end of the study. Among the five chlorpyrifos concentrations and the control, there were no significant differences in larval molting and metamorphosis and growth (postlarval dry weight). An assay method for acetylcholinesterase (AChE) inhibition was adapted for use with grass shrimp larvae to gain further insight into sublethal effects of chlorpyrifos exposure. Larvae sampled for AChE activity showed increased activity in the 0.4 μg/L chlorpyrifos exposure group and depressed activity in the 1.6 μg/L chlorpyrifos exposure group. [ABSTRACT FROM PUBLISHER] |
| Copyright of Journal of Environmental Science & Health. Part B. Pesticides, Food Contaminants & Agricultural Wastes is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
|---|---|
| Header | DbId: egs DbLabel: Engineering Source An: 75388092 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
| IllustrationInfo | |
| Items | – Name: Title Label: Title Group: Ti Data: Lethal and sublethal effects of chlorpyrifos exposure on adult and larval stages of the grass shrimp, Palaemonetes pugio. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Key%2C+Peter+B%2E%22">Key, Peter B.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Fulton%2C+Michael+H%2E%22">Fulton, Michael H.</searchLink><relatesTo>1</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+Environmental+Science+%26+Health%2E+Part+B%2E+Pesticides%2C+Food+Contaminants+%26+Agricultural+Wastes%22">Journal of Environmental Science & Health. Part B. Pesticides, Food Contaminants & Agricultural Wastes</searchLink>. Oct1993, Vol. 28 Issue 5, p621-640. 20p. – Name: Abstract Label: Abstract Group: Ab Data: This study examined the effects of chlorpyrifos, an organophosphorus insecticide, on newly hatched to adult life stages of the grass shrimp, Palaemonetes pugio. In laboratory experiments, adult and 18‐day old larval grass shrimp were exposed in separate 96‐h acute toxicity tests to establish a range of LC50's for these two life stages. The adult 96‐h LC50 was 0.37 μg/L with the 18‐day old larval 96‐h LC50 being 0.44 μg/L. In order to simulate field conditions, 6‐h pulse exposures of chlorpyrifos at 10‰ salinity were performed every 5 days during the grass shrimp larval life cycle. The test was carried out to metamorphosis of the surviving larvae to postiarvae with four 6‐h pulse doses. The LC50's ranged from 0.94 μg/L after the first pulse exposure to 0.29 μg/L at the end of the study. Among the five chlorpyrifos concentrations and the control, there were no significant differences in larval molting and metamorphosis and growth (postlarval dry weight). An assay method for acetylcholinesterase (AChE) inhibition was adapted for use with grass shrimp larvae to gain further insight into sublethal effects of chlorpyrifos exposure. Larvae sampled for AChE activity showed increased activity in the 0.4 μg/L chlorpyrifos exposure group and depressed activity in the 1.6 μg/L chlorpyrifos exposure group. [ABSTRACT FROM PUBLISHER] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of Environmental Science & Health. Part B. Pesticides, Food Contaminants & Agricultural Wastes is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
| PLink | https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=75388092 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1080/03601239309372844 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 20 StartPage: 621 Titles: – TitleFull: Lethal and sublethal effects of chlorpyrifos exposure on adult and larval stages of the grass shrimp, Palaemonetes pugio. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Key, Peter B. – PersonEntity: Name: NameFull: Fulton, Michael H. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 10 Text: Oct1993 Type: published Y: 1993 Identifiers: – Type: issn-print Value: 03601234 Numbering: – Type: volume Value: 28 – Type: issue Value: 5 Titles: – TitleFull: Journal of Environmental Science & Health. Part B. Pesticides, Food Contaminants & Agricultural Wastes Type: main |
| ResultId | 1 |
