Environmental assessment of trace element bioaccumulation in sipunculan from seagrass and wetland sediments

Hsieh I., Mok H., Ko F., Acik Ş.

ENVIRONMENTAL MONITORING AND ASSESSMENT, cilt.185, sa.3, ss.2269-2279, 2013 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 185 Sayı: 3
  • Basım Tarihi: 2013
  • Doi Numarası: 10.1007/s10661-012-2707-9
  • Dergi Adı: ENVIRONMENTAL MONITORING AND ASSESSMENT
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.2269-2279
  • Anahtar Kelimeler: Sipunculan, Trace element, Sediment, Bioaccumulation, CONTAMINATED SEDIMENTS, MERCURY METHYLATION, MARINE BIVALVES, HEAVY-METALS, TAIWAN, RIVER, CU, BIOAVAILABILITY, OYSTERS, ESTUARY
  • Dokuz Eylül Üniversitesi Adresli: Evet

Özet

This study is the first measurement of trace elements in sipunculan and their surrounding sediments. The bioaccumulation characteristics of arsenic (As), cadmium (Cd), chromium (Cr), copper (Cu), mercury (Hg), and zinc (Zn) were analyzed and compared in two sipunculan species, Sipuncula nudus and Siphonosoma vastum, which were collected from seagrass beds and wetlands in Taiwan. The sipunculan and sediment samples were analyzed using an inductively coupled plasma mass spectrometer. Both sipunculan in the wetlands and seagrass beds had a high Cu bioaccumulation mechanism. Multivariate analysis, principle component analysis, and partial least squares for discriminant analysis of trace element levels and bioaccumulation factors were used to distinguish the element distributions that corresponded to the two habitats (seagrass beds and wetlands). Different levels of certain trace elements in these two sipunculan species may result not only from the environmental factors of various habitats but also from the accumulation characteristics of various species. The As, Cd, Cr, Cu, Hg, and Zn concentrations were markedly lower in sipunculan than in other invertebrates from the adjacent polluted regions. The public health issues regarding the consumption of sipunculan are also discussed.