Internal effect concentrations of organic substances for early life development of egg-exposed fish

The present study investigates the likelihood that early life development of marine fish from contaminated areas is affected by maternally transferred persistent organic substances (POPs). The common sole (Solea solea) was used as model species. Fertilized eggs were exposed via the water until hatch...

Full description

Saved in:

Bibliographic Details
Published in:	Ecotoxicology and environmental safety Vol. 101; pp. 14 - 22
Main Authors:	Foekema, Edwin M., Lopez Parron, Maria, Mergia, Mekuria T., Carolus, Elisa R.M., vd Berg, Johannes H.J., Kwadijk, Christiaan, Dao, Quy, Murk, AlberTinka J.
Format:	Journal Article
Language:	English
Published:	San Diego, CA Elsevier Inc 01-03-2014 Elsevier
Subjects:	Agnatha. Pisces Animal, plant and microbial ecology Animals Applied ecology Biological and medical sciences Brominated flame retardants Critical body burden Ecotoxicology, biological effects of pollution Effects of pollution and side effects of pesticides on vertebrates ELS: early life stage Embryology: invertebrates and vertebrates. Teratology Estuaries Female Flatfishes - growth & development Flatfishes - physiology flounder paralichthys-dentatus Fundamental and applied biological sciences. Psychology Growth and Development - drug effects hexabromocyclodo Maternal transfer medaka oryzias-latipes North Sea PCB polybrominated diphenyl ethers polychlorinated-biphenyls Solea southern north-sea Survival Analysis Teratology. Teratogens toxic equivalency factors trout salvelinus-fontinalis Vertebrates: general zoology, morphology, phylogeny, systematics, cytogenetics, geographical distribution Water Pollutants, Chemical - analysis Water Pollutants, Chemical - toxicity western scheldt estuary zebrafish danio-rerio Zygote - drug effects North Sea Solea Critical body burden ELS: early life stage Brominated flame retardants Maternal transfer PCB Egg Toxicity Bromocarbon Polychlorobiphenyls Flame retardant Early stage Endocrine disruptor Body burden Persistent organic pollutant Marine environment Vertebrata Mother embryonal transfer Chlorocarbon Pisces Polybromo diphenyl ether Concentration effect Bromine Organic compounds Teratogen
Online Access:	Get full text
Tags:	Add Tag No Tags, Be the first to tag this record!

Description
Summary:	The present study investigates the likelihood that early life development of marine fish from contaminated areas is affected by maternally transferred persistent organic substances (POPs). The common sole (Solea solea) was used as model species. Fertilized eggs were exposed via the water until hatching, 6 days post fertilization. The newly hatched larvae were allowed to develop further under unexposed conditions until the end of the metamorphosis. Effects on the larvae were determined for the dioxin-like polychlorinated biphenyl PCB 126, the technical PCB-mixture Arochlor 1254, polybrominated diphenylethers (PBDEs), and hexabromocyclododecane (HBCD), for an artificial mixture of PCBs and PBDEs, and for ‘field mixtures’ extracted from sole from the North Sea and the contaminated Western Scheldt estuary. Effect levels were expressed as tissue concentrations in the newly hatched larvae at the end of the exposure period. Exposure to PCBs, PBDEs, and the artificial and field mixtures caused mortality that started to occur shortly after the larvae became free-feeding (10 days post fertilization) and continued to increase until the onset of metamorphosis, 15 days later. The effects induced by the field mixtures correlated well with the ΣPCB concentrations in the tissue of the exposed larvae. No indications were found for synergistic effects or for substantial contribution of other (unknown) substances in the field mixtures. HBCD did not induce toxic effects. As lipid normalized POP levels in fish eggs are in general comparable to the levels in the tissue of the female fish, fish tissue concentrations are indicative of the internal exposure of the developing larvae as a result maternally transferred POPs will occur in the field. In sole from the Western Scheldt estuary POP levels are about twenty times lower than the larval tissue concentration that produced 50 percent early life stage mortality. Levels in North Sea sole are an order of a magnitude lower. At more heavily contaminated sites negative effect of PCBs, especially of those with dioxin-like toxicity can be expected. •Fertilized eggs of Solea solea were exposed to POPs until hatching.•Larvae were allowed to further develop under unexposed conditions.•Toxic body burden was determined for PCBs, PBDEs, HBCDs, mixtures and fish extracts.•PCBs explained most effects, effect of other POPs was insignificant.•Impact of maternally transferred POPs in the highest contaminated Dutch estuary is limited.
ISSN:	0147-6513 1090-2414
DOI:	10.1016/j.ecoenv.2013.12.006