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Effects of three PBDEs on development, reproduction and population growth rate of the harpacticoid copepod Nitocra spinipes
Breitholtz, M.; Wollenberger, L. (2003). Effects of three PBDEs on development, reproduction and population growth rate of the harpacticoid copepod Nitocra spinipes. Aquat. Toxicol. 64(1): 85-96. https://dx.doi.org/10.1016/S0166-445X(03)00025-0
In: Aquatic Toxicology. Elsevier Science: Tokyo; New York; London; Amsterdam. ISSN 0166-445X; e-ISSN 1879-1514
Peer reviewed article  
Beschikbaar in  Auteurs 
Trefwoorden
    Chemical compounds > Organic compounds > Hydrocarbons > Halogenated hydrocarbons > Brominated hydrocarbons
    Chemical compounds > Organic compounds > Hydrocarbons > Unsaturated hydrocarbons > Alkenes > Ethene
    Cycles > Life cycle
    Environmental assessment
    Environmental risk assessment
    Growth rate
    Sweden
    Nitokra spinipes spinipes Boeck, 1865 [WoRMS]
    Sweden [Marine Regions]
    Marien/Kust
Auteurs  Top 
  • Breitholtz, M., correspondent
  • Wollenberger, L.
Abstract
    The current knowledge concerning effects of polybrominated diphenyl ethers (PBDEs) on aquatic organisms is very limited. A full life-cycle (<26 days exposure) ecotoxicity test with the particle-feeding copepod Nitocra spinipes was therefore used to study effects of BDE-47, -99 and -100 on larval development rate (LDR) and population growth rate (rm). LDR significantly decreased in copepods exposed for 6 days to nominal concentrations >0.013 mg/l BDE-47 and >0.03 mg/l BDE-99. Large concentration ratios (<338) between adult acute and juvenile subchronic endpoints were observed. Exposure over the full life cycle (<26 days) showed that rm in general was a less sensitive endpoint than LDR. Still, the rm in copepods exposed to 0.04 mg/l BDE-47 was significantly reduced compared to the controls (***P <0.001). Partitioning experiments with 14C-BDE-47 and 14C-BDE-99 in the test system showed that the major fractions (~50-80%) were associated to particulate material. Our findings indicate that development and reproduction in N. spinipes are sensitive to the tested PBDEs and that ingestion of particle-adsorbed PBDEs most likely is the predominant route of exposure in N. spinipes. However, to further improve the usefulness of laboratory effect levels of PBDEs and other lipophilic substances for environmental risk assessment, it is important to develop ecotoxicological tools, which can evaluate and rate the toxic contribution from different matrices, such as suspended particles, sediment, food, water etc.
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