Bioaccumulation and distribution of trace elements in tissues of giant river prawn Macrobrachium rosenbergii (Decapoda: Palaemonidae) from South Vietnam

Autor:	Nguyen Phuc Cam Tu, Ichiro Takeuchi, Shinsuke Tanabe, Nguyen Ngoc Ha, Tokutaka Ikemoto, Bui Cach Tuyen
Rok vydání:	2008
Předmět:	Muscle tissue Delta Veterinary medicine biology Decapoda Macrobrachium rosenbergii Trace element Aquatic Science biology.organism_classification Fishery medicine.anatomical_structure Bioaccumulation medicine Hepatopancreas Palaemonidae
Zdroj:	Fisheries Science. 74:109-119
ISSN:	1444-2906 0919-9268
DOI:	10.1111/j.1444-2906.2007.01474.x
Popis:	Accumulation profiles of 22 trace elements in abdominal muscle, abdominal exoskeleton and the hepatopancreas of the giant river prawn Macrobrachium rosenbergii were analyzed. The giant river prawn is an indigenous freshwater species from South Vietnam, and is cultured commercially and fished in the wild. Samples were collected from Ho Chi Minh City and the surrounding area (SKEZ, South Key Economic Zone), and from the Mekong River Delta between 2003 and 2005. Highest accumulations of essential (Cu, Se and Mo) and toxic (As, Ag, Cd and Hg) elements were observed in hepatopancreatic tissue, except for Mn, Sr, Sn, Ba and V in the exoskeleton and Rb and Cs in muscle tissue. Spatial differences showed concentrations of Cs and Pb in muscle and Sr in exoskeletons from the SKEZ were higher than those from the Mekong River Delta. The opposite trend was observed for Cr, Se and Sb in muscle, Mo, Sb and TI in exoskeleton, and Se, Hg, Mo, Cd, Sb, TI and Bi in the hepatopancreas. These differences in trace element concentrations in prawns likely reflect differences in industrialization and human activities between the two regions of South Vietnam.
Databáze:	OpenAIRE
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