title: Bioaccumulation of trace metals in the submarine hydrothermal vent crab Xenograpsus testudinatus off Kueishan Island, Taiwan.
abstract: The concentrations of ten trace metals were determined in the gills, muscles, hepatopancreas, and exoskeleton tissues of Xenograpsus testudinatus that lives around shallow and acidic hydrothermal vents off Kueishan Island, northeastern Taiwan. The analytical results demonstrate that the metal concentrations vary significantly with the type of crab tissue. The concentrations of Al, Cd, Co, Cu, Fe, Ni, and Zn are highest in the gills, whereas the concentration of Mn is highest in the exoskeleton. Cr and Pb concentrations are similar across the different tissues. The enhanced accumulation of most metals in the gills suggests the metal accumulation via the respiration pathway rather than the uptake of food. The results also reveal that the distribution patterns of metals in tissues are similar in the hepatopancreas and muscles, but very different in both the gills and the exoskeleton, perhaps because of the different pathways of metal utilization in the different crab tissues.
authors.affiliation: Institute of Marine Geology and Chemistry, Asian-Pacific Ocean Research Center, National Sun Yat-San University, Kaohsiung, Taiwan.
authors.forename: Shao-Hung
authors.initials: SH
authors.lastname: Peng
authors.forename: Jia-Jang
authors.initials: JJ
authors.lastname: Hung
authors.forename: Jiang-Shiou
authors.initials: JS
authors.lastname: Hwang
mesh_terms: D000818:Animals; D003386:Brachyura / Q000378:metabolism*; D004784:Environmental Monitoring; D043143:Hepatopancreas / Q000378:metabolism; D008670:Metals / Q000378:metabolism*; D009132:Muscles / Q000378:metabolism; D013624:Taiwan; D014874:Water Pollutants, Chemical / Q000378:metabolism*
chemical_list: D008670:Metals; D014874:Water Pollutants, Chemical