Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 411645
Title Early life developmental effects of marine persistent organic pollutants on the sea urchin Psammechinus miliaris
Author(s) Drs Anselmo, H.M.R.; Koerting, L.; Devito, S.; Berg, J.H.J. van den; Dubbeldam, M.; Kwadijk, C.J.A.F.; Murk, A.J.
Source Ecotoxicology and Environmental Safety 74 (2011)8. - ISSN 0147-6513 - p. 2182 - 2192.
Department(s) Sub-department of Toxicology
Aquatic Ecology and Water Quality Management
Publication type Refereed Article in a scientific journal
Publication year 2011
Keyword(s) western scheldt estuary - polychlorinated-biphenyls - north-sea - paracentrotus-lividus - aquatic toxicity - sediment - exposure - embryos - pcbs - echinodermata
Abstract A new 16-day echinoid early life stage (ELS) bioassay was developed to allow for prolonged observation of possible adverse effects during embryogenesis and larval development of the sea urchin Psammechinus miliaris. Subsequently, the newly developed bioassay was applied to study the effects of key marine persistent organic pollutants (POPs). Mortality, morphological abnormalities and larval development stages were quantified at specific time points during the 16-day experimental period. In contrast to amphibians and fish, P. miliaris early life development was not sensitive to dioxin-like toxicity in the prolonged early life stage test. Triclosan (TCS) levels higher than 500 nM were acutely toxic during embryo development. Morphological abnormalities were induced at concentrations higher than 50 nM hexabromocyclododecane (HBCD) and 1000 nM tetrabromobisphenol A (TBBPA). Larval development was delayed above 25 nM HBCD and 500 nM TBBPA. Heptadecafluorooctane sulfonic acid (PFOS) exposure slightly accelerated larval development at 9 days post-fertilization (dpf). However, the accelerated development was no longer observed at the end of the test period (16 dpf). The newly developed 16-day echinoid ELS bioassay proved to be sensitive to toxic effects of POPs that can be monitored for individual echinoid larvae. The most sensitive and dose related endpoint was the number of developmental penalty points. By manipulation of the housing conditions, the reproductive season could be extended from 3 to 9 months per year and the ELS experiments could be performed in artificial sea water as well.
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