caa a22 4500 46790488X CHVBK 20180406152831.0 cr unu---uuuuu 170328e20060401xx s 000 0 eng 10.1007/s10661-006-6548-2 doi (NATIONALLICENCE)springer-10.1007/s10661-006-6548-2 Spatial and Temporal Variations in Trace Metal Concentrations in the Cockle, Austrovenus Stutchburyi from Otago, New Zealand [Elektronische Daten] [Barrie Peake, Islay Marsden, Ashley Bryan] This is the first comprehensive study of sources of variation in metal concentrations within the whole tissues of a shallow burrowing, filter-feeding intertidal clam, Austrovenus stutchburyi. Samples were collected from 12 sites in April, August, November and February in 1993-1994 in the vicinity of Otago Harbour and Peninsula, New Zealand. Total tissue trace metal concentrations (μg g−1 dry weight) were measured in individual animals for the essential metals : Mn, Cu, Zn, Ni and the non-essential Cr using trace-metal clean acid-digestion and ICP-OAES techniques. Average metal concentrations were 3-60 μg g−1 for Cu, 40-118 μg g−1 for Zn, 2-12 μg g−1 for Mn, 5-35 μg g−1 for Ni and 1-44 μg g−1 for Cr. These levels decreased with body weight and differed amongst sites except for Cr in February (mid-summer). Highest concentrations occurred at sites close to a city (Dunedin) and within the central harbour region although the Cu, Zn, Ni and Cr concentrations did not correlate with the environmental gradient or season. At one coastal site, samples of both the blue mussel Mytilus galloprovincialis and cockles gave similar trends in trace metal levels. These results suggest that the cockle could be a useful trace metal biomonitor within NZ estuaries. Springer Science + Business Media, Inc., 2006 trace metals nationallicence bioaccumulation nationallicence condition index nationallicence cockle nationallicence Austrovenus stutchburyi nationallicence Mytilus galloprovincialis nationallicence New Zealand nationallicence Peake Barrie Department of Chemistry, University of Otago, Dunedin, New Zealand aut Marsden Islay School of Biological Sciences, University of Canterbury, Christchurch, New Zealand aut Bryan Ashley Department of Chemistry, University of Otago, Dunedin, New Zealand aut Environmental Monitoring and Assessment Kluwer Academic Publishers 115/1-3(2006-04-01), 119-144 0167-6369 115:1-3<119 2006 115 10661 https://doi.org/10.1007/s10661-006-6548-2 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10661-006-6548-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Peake Barrie Department of Chemistry, University of Otago, Dunedin, New Zealand aut NATIONALLICENCE 700 1- Marsden Islay School of Biological Sciences, University of Canterbury, Christchurch, New Zealand aut NATIONALLICENCE 700 1- Bryan Ashley Department of Chemistry, University of Otago, Dunedin, New Zealand aut NATIONALLICENCE 773 0- Environmental Monitoring and Assessment Kluwer Academic Publishers 115/1-3(2006-04-01), 119-144 0167-6369 115:1-3<119 2006 115 10661 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer