Effects of a 28-day early life stage exposure to carbaryl on fathead minnow long-term growth and reproduction.
Fathead minnow
Growth
Pesticide
Reproduction
Journal
Aquatic toxicology (Amsterdam, Netherlands)
ISSN: 1879-1514
Titre abrégé: Aquat Toxicol
Pays: Netherlands
ID NLM: 8500246
Informations de publication
Date de publication:
Jan 2022
Jan 2022
Historique:
received:
01
07
2021
revised:
02
11
2021
accepted:
04
11
2021
pubmed:
24
11
2021
medline:
29
12
2021
entrez:
23
11
2021
Statut:
ppublish
Résumé
The US Environmental Protection Agency conducts ecological risk assessments with a battery of fish toxicity tests that include acute, early life stage, and reproduction tests. While endpoints in these tests (survival, growth and reproduction) are conceptually related, because they are measured in separate exposures, the quantitative relationships between them are difficult to determine and largely ignored. In the current test, fathead minnows (FHM) were exposed for 28 days to 1 mg/L or 2 mg/L carbaryl, a well-studied carbamate insecticide, in early life stages and then reared in clean water until adulthood, when reproduction was assessed. Also. weekly growth measurements were taken throughout the test to determine growth rates during and after exposure. Growth curves derived from these measurements were then compared to the reproductive output. The data indicate that carbaryl reduced growth rate only for a brief time early in the exposure. However, this brief effect impacted overall growth into adulthood and lowered the reproductive output of exposed FHM. The effect of a transient exposure early in life to carbaryl could have later population-level impacts by causing mortality, lowering growth rates, and reducing reproductive output.
Identifiants
pubmed: 34814091
pii: S0166-445X(21)00278-2
doi: 10.1016/j.aquatox.2021.106018
pmc: PMC9134262
mid: NIHMS1800635
pii:
doi:
Substances chimiques
Water Pollutants, Chemical
0
Carbaryl
R890C8J3N1
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
106018Subventions
Organisme : Intramural EPA
ID : EPA999999
Pays : United States
Informations de copyright
Copyright © 2021. Published by Elsevier B.V.
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