title: Bioaccumulation and effects of metals bound to sediments collected from Gulf of Cádiz (SW Spain) using the polychaete Arenicola marina.
abstract: A short-term whole-sediment test using the polychaete Arenicola marina was conducted under laboratory conditions to assess the bioavailability of metals bound to sediments collected from 12 sites of the Gulf of Cádiz. To achieve this objective, the rate of increase of metal bioaccumulation and the induction of a typical biomarker, metallothioneinlike proteins (MTLPs) were determined. Results of the multivariate analysis showed associated metal-rich sediments, increased rate of Cu and Zn accumulations, but lower toxicity with an increased MTLP induction, whereas sedimentary Ni and Co concentrations were related to higher toxicity to lugworms, although it might be caused by other contaminants present in these sediments. The linear kinetic approach was shown to be valid in certain circumstances, but more validation studies of this parameter are required before it can be recommended for use in evaluating metal bioavailability in sediments.
authors.affiliation: Instituto de Ciencias Marinas de Andalucía, CSIC, Polígono Río San Pedro s/n, 11510, Puerto Real, Cádiz, Spain. judit.kalman@uca.es
authors.forename: Judit
authors.initials: J
authors.lastname: Kalman
authors.forename: Inmaculada
authors.initials: I
authors.lastname: Riba
authors.forename: Angel
authors.initials: A
authors.lastname: DelValls
authors.forename: Julian
authors.initials: J
authors.lastname: Blasco
mesh_terms: D000818:Animals; D001682:Biological Availability; D015415:Biomarkers / Q000378:metabolism; D004784:Environmental Monitoring / Q000379:methods*; D019015:Geologic Sediments / Q000737:chemistry*; D008667:Metalloproteins / Q000378:metabolism; D019216:Metals, Heavy / Q000032:analysis / Q000493:pharmacokinetics* / Q000633:toxicity; D015999:Multivariate Analysis; D011077:Polychaeta / Q000187:drug effects / Q000378:metabolism*; D013030:Spain; D014874:Water Pollutants, Chemical / Q000032:analysis / Q000493:pharmacokinetics* / Q000633:toxicity
chemical_list: D015415:Biomarkers; D008667:Metalloproteins; D019216:Metals, Heavy; D014874:Water Pollutants, Chemical