Acute toxicity of sodium metabisulphite in larvae and post-larvae of the land crab, Cardisoma guanhumi.
Sodium metabisulphite (SMB) is used in marine shrimp aquaculture to prevent the occurrence of black spot. The release SMB into the estuarine environment from shrimp farm pond effluents has been reported. This study evaluated the susceptibility of larvae and post-larvae of land crab, Cardisoma guanhumi to this salt. A decrease in dissolved oxygen and pH occurred with increasing concentration of SMB and exposure time. LC(50) values after 48 h of exposure were 34 ± 1.1 mg/L, 31.1 ± 1.9 mg/L, and 30.6 ± 0.5 mg/L for I zoea larvae, megalopa larvae and stage I juveniles, respectively.
Instituto de Estudos Costeiros (IECOS), Universidade Federal do Pará (UFPA), Campus Universitário de Bragança, Alameda Leandro Ribeiro s/n, Aldeia, Bragança, PA, CEP 68600-000, Brazil. orlandogalli@gmail.com
Orlando B S
OB
Galli
Rodrigo Y
RY
Fujimoto
Fernando A
FA
Abrunhosa
D000818:Animals; D017756:Aquaculture; D003386:Brachyura / Q000187:drug effects* / Q000254:growth & development; D004784:Environmental Monitoring / Q000379:methods; D005260:Female; D006863:Hydrogen-Ion Concentration; D007814:Larva / Q000187:drug effects / Q000254:growth & development; D013447:Sulfites / Q000633:toxicity*; D014874:Water Pollutants, Chemical / Q000633:toxicity*
D013447:Sulfites; D014874:Water Pollutants, Chemical; C005200:sodium metabisulfite