マダイPagrus major 仔魚に対する六価クロムの急性致死影響
Acute Toxicity of Hexavalent Chromium on the Larvae of Red Seabream Pagrus major

Takashi Kikkawa, Makoto Nishimura
2014 Aquaculture Science  
In Japan, red seabream Pagrus major larvae have been recommended as a saltwater test fish for acute toxicity test of chemicals. However, for this species, there is no reference data of the lethality of hexavalent chromium, which is recommended as the standard substance for ecotoxicological tests in some test guidelines. Therefore, we examined the acute toxicity of hexavalent chromium (as potassium dichromate) on larvae of P. major according to the test guideline of the Ministry of Environment
more » ... ry of Environment of Japan. The median lethal concentrations obtained from duplicate treatments were 28 mg/l for 24 hours, and 17 mg/l for 48 hours (calculated as the concentration of hexavalent chromium). Compared to other saltwater species, P. major larvae showed higher susceptibility to hexavalent chromium.
doi:10.11233/aquaculturesci.62.229 fatcat:ixlxgzv22ncyhgo3iiacvh2yzq