caa a22 4500 477116558 CHVBK 20180405111624.0 cr unu---uuuuu 170330e19961101xx s 000 0 eng 10.1007/BF00000502 doi (NATIONALLICENCE)springer-10.1007/BF00000502 Environmental sources of trace metals in sea lamprey, Petromyzon marinus , larvae in New Brunswick, Canada [Elektronische Daten] [John Holmes, John Youson] Synopsis: Since lamprey larvae have a unique capacity for storage of large quantities of Fe, we assessed the importance of water and sediments as sources of this, and other trace metals, in sea lamprey, Petromyzon marinus, larvae from six populations in New Brunswick, Canada. Body burdens (mg) of Fe, Al, and Cu increased with age in larvae from all populations, except Al in the Nashwaaksis River. Whole body concentrations of Fe. Al, and Cu in sea lamprey were weakly correlated (maximum r = 0.39) with concentrations in water or sediment. Judging by these correlations (1) lamprey larvae obtain more Fe from the water than the sediments they inhabit, (2) sediment was the most important source of Cu to lampreys, and (3) both water and sediment contributed equally to Al levels in sea lamprey larvae. Negative correlations between concentrations of Fe, an essential micronutrient, and Al, a toxic element, in larvae and their environment support the inferences that Fe levels in larvae are homeostatically regulated and that Al may be actively detoxified by larvae. Stronger correlations between environmental concentrations of metals and concentrations in lampreys were expected, given the ecology and high Fe concentrations in the tissues of larvae. Although our field samples have provided the first data on body metal concentrations in several lamprey populations, they did not provide a definitive explanation of the source of high body Fe concentrations in the larvae. Future research should use a controlled environment to investigate the role of food and the interstitial water of the burrow as sources and routes of metal uptake in lamprey larvae. Kluwer Academic Publishers, 1996 Bioaccumulation nationallicence Water nationallicence Substrate nationallicence Homeostatic regulation nationallicence Fe nationallicence Al nationallicence Cu nationallicence Petromyzoniformes nationallicence Holmes John Division of Life Sciences, Scarborough Campus, University of Toronto, 1265 Military Trail, M1C 1A4, Scarborough, Ontario, Canada aut Youson John Division of Life Sciences, Scarborough Campus, University of Toronto, 1265 Military Trail, M1C 1A4, Scarborough, Ontario, Canada aut Environmental Biology of Fishes Kluwer Academic Publishers; http://www.wkap.nl 47/3(1996-11-01), 299-310 0378-1909 47:3<299 1996 47 10641 https://doi.org/10.1007/BF00000502 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00000502 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Holmes John Division of Life Sciences, Scarborough Campus, University of Toronto, 1265 Military Trail, M1C 1A4, Scarborough, Ontario, Canada aut NATIONALLICENCE 700 1- Youson John Division of Life Sciences, Scarborough Campus, University of Toronto, 1265 Military Trail, M1C 1A4, Scarborough, Ontario, Canada aut NATIONALLICENCE 773 0- Environmental Biology of Fishes Kluwer Academic Publishers; http://www.wkap.nl/ 47/3(1996-11-01), 299-310 0378-1909 47:3<299 1996 47 10641 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer