Heavy metals concentration in the selected commercially local shrimp species from Sarawak river
The upsurge of riverine system contamination of heavy metals from industrialization and urbanization become a global concern as it tend to contaminate the water and bioaccumulate in the aquatic organisms including shrimps. Four local shrimp species namely Macrobrachium rosenbergii (Male), Macrobra...
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| Format: | Final Year Project Report / IMRAD |
| Language: | English English |
| Published: |
Universiti Malaysia Sarawak, (UNIMAS)
2014
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| Subjects: | |
| Online Access: | http://ir.unimas.my/id/eprint/8262/ http://ir.unimas.my/id/eprint/8262/1/Heavy%20Metals%20Concentration%20in%20the%20Selected%20Commercially%20Local%20Shrimp%20Species%20From%20Sarawak%20River%2824pgs%29.pdf http://ir.unimas.my/id/eprint/8262/2/Heavy%20Metals%20Concentration%20in%20the%20Selected%20Commercially%20Local%20Shrimp%20Species%20From%20Sarawak%20River.pdf |
| Summary: | The upsurge of riverine system contamination of heavy metals from industrialization and urbanization
become a global concern as it tend to contaminate the water and bioaccumulate in the aquatic organisms
including shrimps. Four local shrimp species namely Macrobrachium rosenbergii (Male), Macrobrachium
rosenbergii (Female), Macrobrachium sp. and Metapenaeus sp. originally from Sarawak River were assessed
to detennine the heavy metals concentration. Shrimp samples were digested with concentrated HNO) (63%)
and HCI (37%) on the hot plate before the selected metals were analyzed by using Flame Atomic Absorption
Spectrophotometer (F AAS) and Flow Injection Mercury System (FIMS). The high range concentrations of
Zinc were 30.60 - 161.52 mglkg in Macrobrachium rosenbergii (Male), Copper were 16.99 - 711.80 mglkg
in Macrobrachium sp., Cadmium were range from below detection limit (BDL) - 12.47 mglkg in
Metapenaeus sp., Lead were in range of 0.23 - 20.07 mglkg in Macrobrachium rosenberg;; (Female) and
Mercury were in range of 0.03 - 9.78 mglkg in Metapenaeus sp. The heavy metals concentration showed no
significant difference (p>O.05) among the shrimp species however significant difference (p<O.05) were
determined among the body parts. The distribution pattern of heavy metals accumulation for all species
exhibited as follows: Cu>Zn>Pb>Cd>Hg. The tendency of metals accumulated in different parts showed the
following trend: hepatopancreas > gills > abdominal muscle > exoskeleton. It showed that all
Macrobrachium species accumulated considerable level of heavy metals followed by Metapenaeus sp. The
recorded total concentration of Zn, Co, Cd, Ph and Hg were exceeded the permissible limit recommended by
FAOIWHO (1992) reflected the unhealthy environment of Sarawak River. |
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