Kaohsiung Harbor used to be the third largest harbor of the world ,
and also the biggest one in Taiwan at present. Even though it¡¦s not in the
list of ten biggest harbors now, a lot of ship around the world comes
frequently. There are also several shipyards and fishing ports in the area
of Kaohsiung Harbor, it¡¦s horrible that the harbor area is polluted by
organotin compound pollutant. .
Following are five major benthic organisms: Distorsio reticularis,
Niotha conoidalis, Metapenaeopsis palmensis, Portunus argentatus and
Portunus hastatoides. .
Monobutyltin(MBT) is almost detected in the sediment of all the
stations, and the concentration is between 5.4 and 17.9 ng /g wet wt as tin.
Dibutyltin(DBT) is detected in the sediment of all the station, and the
concentration is between 9.5 and 12.5 ng /g wet wt as tin. Tributyltin
(TBT) is just detected at station D2 with the concentration of 8.7 ng /g
wet wt as tin. The organotin in Distorsio reticularis, Niotha conoidalis,
Metapenaeopsis palmensis, Portunus argentatus and Portunus
hastatoides are obviously accumulated. In Distorsio reticularis, the
concentration of TBT is between ND and 112.6 ng /g wet wt as tin. In
Niotha conoidalis, the concentration of TBT is between 12.4 and 217.7
ng /g wet wt as tin, in Portunus argentatus, is between 3.0 and 3.4 and inPortunus hastatoides is between 5.5 and 92.1, in Metapenaeopsis
palmensis, is between 3.7 and 37.0. In all station, monobutyltin is the
main composition of butyltins; TBT concentration is almost less than 100
ng /g wet wt as tin. The concentration of butyltins in all the five major benthic organisms decreases with the increasing sample size. There
wasn¡¦t significant variation for organotin concentrations in
Metapenaeopsis palmensis collected from each stationsand seasons. The
concentration of Portunus argentatus and Portunus hastatoides is higher in
April 2008 and January 2008 than in other months.
According to many study, the content of organotins in sediment
around coastal areas out of harbor is obviously less than other coastal
areas of large-scale harbors (Lisbon, Sines, Sagres, Huelva, Cadiz and
Trafalgar). The organotin contamination around coastal areas out of
harbor is not serious. Base on estimation of amounts, distributions and
contents of organotin in organisms, Portunus argentatus and Portunus
hastatoides are better bethic organisms than Distorsio reticularis, Niotha
conoidalis, and Metapenaeopsis palmensis in all the depth and area. The
amount is also huge that Portunus argentatus and Portunus hastatoides
are the best indicator organism for this area.
| Identifer | oai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0909109-152400 |
| Date | 09 September 2009 |
| Creators | Chu, Yu-chung |
| Contributors | Jung-Hui Chen, Wei-Hsien Wang, Chi-Hsin Hsu |
| Publisher | NSYSU |
| Source Sets | NSYSU Electronic Thesis and Dissertation Archive |
| Language | Cholon |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0909109-152400 |
| Rights | not_available, Copyright information available at source archive |
Page generated in 0.0021 seconds