Acute cadmium toxicity to sea bass, Lates calcarifer
The acute toxicity of cadmium was determined for sea bass,Lates calcarifer at 20 days and at 4 months of age. Bioassays were conducted using a static-with-renewal procedure. The 20-days old fish were tested at 20ppt salinity only while the influence of 5,15 and 30ppt on cadmium toxicity was investig...
| Main Authors: | , |
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| Format: | Conference or Workshop Item |
| Language: | English |
| Online Access: | http://psasir.upm.edu.my/id/eprint/19729/1/ID%2019729.pdf |
| _version_ | 1796969666699067392 |
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| author | M. Shazili, Noor A. Masato, Izawa |
| author_facet | M. Shazili, Noor A. Masato, Izawa |
| author_sort | M. Shazili, Noor A. |
| collection | UPM |
| description | The acute toxicity of cadmium was determined for sea bass,Lates calcarifer at 20 days and at 4 months of age. Bioassays were conducted using a static-with-renewal procedure. The 20-days old fish were tested at 20ppt salinity only while the influence of 5,15 and 30ppt on cadmium toxicity was investigated for 4 month old fish. The 12 day median lethat concentration )LC 50) for the 20 day old fish was 4.0mg cD/l. Acclimatization to cadmium occurred,with fish exposed to 0.32mg Cd/L and 1.0mg Cd/L surviving significantly longer in a test solution of 32mg Cd/L compared to previously unexposed fish. Cadmium toxicity was influenced by salinity. The sensitivity of 4 month old fish to cadmium increased with reducing salinity,the 96-hr LC 50's being 0.74,16.5 and 19mg Cd/L at 5,15 and 30ppt salinity respectively. As Lates calcarifer spends its first 3 years of development in euryhalline conditions and is also found in freshwaters,its early life stages may be at risk to metal pollution. |
| first_indexed | 2024-03-06T07:46:25Z |
| format | Conference or Workshop Item |
| id | upm.eprints-19729 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T07:46:25Z |
| record_format | dspace |
| spelling | upm.eprints-197292015-02-12T00:26:08Z http://psasir.upm.edu.my/id/eprint/19729/ Acute cadmium toxicity to sea bass, Lates calcarifer M. Shazili, Noor A. Masato, Izawa The acute toxicity of cadmium was determined for sea bass,Lates calcarifer at 20 days and at 4 months of age. Bioassays were conducted using a static-with-renewal procedure. The 20-days old fish were tested at 20ppt salinity only while the influence of 5,15 and 30ppt on cadmium toxicity was investigated for 4 month old fish. The 12 day median lethat concentration )LC 50) for the 20 day old fish was 4.0mg cD/l. Acclimatization to cadmium occurred,with fish exposed to 0.32mg Cd/L and 1.0mg Cd/L surviving significantly longer in a test solution of 32mg Cd/L compared to previously unexposed fish. Cadmium toxicity was influenced by salinity. The sensitivity of 4 month old fish to cadmium increased with reducing salinity,the 96-hr LC 50's being 0.74,16.5 and 19mg Cd/L at 5,15 and 30ppt salinity respectively. As Lates calcarifer spends its first 3 years of development in euryhalline conditions and is also found in freshwaters,its early life stages may be at risk to metal pollution. Conference or Workshop Item NonPeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/19729/1/ID%2019729.pdf M. Shazili, Noor A. and Masato, Izawa Acute cadmium toxicity to sea bass, Lates calcarifer. In: Chemistry International First Environmental Chemistry Conference, 28 Aug.-2 Sep.1989, Brisbane, Australia. . |
| spellingShingle | M. Shazili, Noor A. Masato, Izawa Acute cadmium toxicity to sea bass, Lates calcarifer |
| title | Acute cadmium toxicity to sea bass, Lates calcarifer |
| title_full | Acute cadmium toxicity to sea bass, Lates calcarifer |
| title_fullStr | Acute cadmium toxicity to sea bass, Lates calcarifer |
| title_full_unstemmed | Acute cadmium toxicity to sea bass, Lates calcarifer |
| title_short | Acute cadmium toxicity to sea bass, Lates calcarifer |
| title_sort | acute cadmium toxicity to sea bass lates calcarifer |
| url | http://psasir.upm.edu.my/id/eprint/19729/1/ID%2019729.pdf |
| work_keys_str_mv | AT mshazilinoora acutecadmiumtoxicitytoseabasslatescalcarifer AT masatoizawa acutecadmiumtoxicitytoseabasslatescalcarifer |