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Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.

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Marsupial development in the mysid Neomysis integer (Crustacea: Mysidacea) to evaluate the effects of endocrine-disrupting chemicals Ghekiere, A.; Fockedey, N.; Verslycke, T.; Vincx, M.; Janssen, C.R. (2007). Marsupial development in the mysid Neomysis integer (Crustacea: Mysidacea) to evaluate the effects of endocrine-disrupting chemicals. Ecotoxicol. Environ. Saf. 66(1): 9-15. http://dx.doi.org/10.1016/j.ecoenv.2006.02.008 In: Ecotoxicology and Environmental Safety. Academic Press/Elsevier: Amsterdam, Netherlands etc. ISSN 0147-6513; e-ISSN 1090-2414, meer

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Beschikbaar in	Auteurs
VLIZ: Open Marine Archive 113107 [ download pdf ]

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Trefwoorden

Biological development > Embryonic development Biology > Physiology > Endocrinology Growth regulators > Insecticides > Insect growth regulators > Juvenile hormone analogues > Methoprene Pesticides > Insecticides Secretory products > Hormones Mysida [WoRMS]; Neomysis integer (Leach, 1814) [WoRMS] België, Zeeschelde, Haven van Antwerpen [Marine Regions] Marien/Kust; Brak water

Author keywords

endocrine disruption; in vitro embryogenesis; juvenile hormone analog;methoprene; mysid

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Project	Top | Auteurs
Endocrine disruption in the Scheldt Estuary: distribution, exposure and effects, meer

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Auteurs		Top
Ghekiere, A., meer Fockedey, N., meer Verslycke, T., meer	Vincx, M., meer Janssen, C.R., meer

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Abstract

Embryonic development is a crucial time window within an organism's life history. Relatively few studies have focused on understanding the potential effects of endocrine disruptors on embryogenesis in invertebrates. Mysids (Crustacea: Mysidacea) have been used extensively in regulatory toxicity testing and they are the only invertebrate model currently included in the U.S. EPA's Endocrine Disruptor Screening and Testing Program. We developed a method for studying mysid embryonic development in multiwell plates until the release of free-swimming juveniles. This method was used to evaluate the potential effects of the insecticide methoprene, a juvenile hormone analog, on mysid embryogenesis. Embryos were exposed to nominal concentrations 0.01, 1, and 100 μg methoprene/L. Average percentage survival, hatching success, total development time and duration of each developmental stage were analyzed. Embryos exposed to 1 and 100 μg methoprene/L had a significantly lower hatching success and lower survival rates. Our study indicates that in vitro embryogenesis can be used as a valuable tool to study the impact of endocrine disruptors in mysids.

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