PUBLICATION

Synthetic musk toxicity to early life stages of zebrafish (Danio rerio)

Authors
Carlsson, G., and Norrgren, L.
ID
ZDB-PUB-040319-6
Date
2004
Source
Archives of environmental contamination and toxicology   46(1): 102-105 (Journal)
Registered Authors
Norrgren, Leif
Keywords
none
MeSH Terms
  • Animals
  • Fatty Acids, Monounsaturated/chemical synthesis
  • Fatty Acids, Monounsaturated/toxicity*
  • Female
  • Lethal Dose 50
  • Male
  • Odorants
  • Ovum/growth & development
  • Survival Analysis
  • Water Pollutants, Chemical/toxicity*
  • Zebrafish
PubMed
15025169 Full text @ Arch. Environ. Contam. Toxicol.
Abstract
Synthetic musk substances have been found in a number of environmental samples. Some of these chemicals have been detected in concentrations above 1 microg/L in water, which raises concern about possible effects on aquatic life. The toxicity of four synthetic musks, 4-tert-butyl-2,6-dimethyl-3,5-dinitrophenylethanone (musk ketone), 1-tert-butyl-3,5-dimethyl-2,4,6-trinitrobenzene (musk xylene), 1-(5,6,7,8-tetrahydro-3,5,5,6,8,8-hexamethyl-2-naphthalenyl)ethanone (AHTN, tonalide) and 1,3,4,6,7,8-hexahydro-4,6,6,7,8,8-hexamethylcyclopenta-[g]-2-benzopyrane (HHCB, galaxolide), were studied in zebrafish by the use of two different early life-stage methods. In the first method, specific developmental characteristics during the first 48 hours were studied. In the second method, hatching and survival times were studied on eggs and larvae. The results on heart rate in the first test gave the following LOECs: musk ketone 10 microg/L, musk xylene and AHTN 33 microg/L, and HHCB showed no effect up to 1000 microg/L. In the study of survival time, LOEC for musk ketone was 100 microg/L, for musk xylene 33 microg/L, and AHTN gave no effect on survival time up to 100 microg/L. The LOECs for musk ketone, musk xylene, and AHTN in this study are in the range of what has been measured in sewage effluents and recipients, and consequently these substances may have adverse impact on wild fish.
Genes / Markers
Figures
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Antibodies
Orthology
Engineered Foreign Genes
Mapping