Effects of water borne iron on spawn of Indian major carps (Catla catla (Ham.), Labeo rohita (Ham.) and Cirrhinus mrigala (Ham.)).
Effects of water-borne iron on Indian major carps spawn were evaluated in the present study. Ferrous sulphate was used to prepare different test iron concentrations. Mrigal had the lowest 96 h LC(50) value of 0.30 ± 0.06 mg L(-1) while rohu had the highest value of 0.73 ± 0.06 mg L(-1) of iron. Accumulation of iron in mrigal spawn was highest whereas it was lowest in catla. Abnormal behaviour and reduced growth were observed in chronic toxicity. Application factors were calculated to establish acceptable ranges and safe levels.
Department of Fish Health and Environment, College of Fisheries, Central Agricultural University, Lembucherra, Post Box No 60, Agartala, 799 001 Tripura, India.
Mitra
M
Debnath
Ratan Kumar
RK
Saha
Dibyendu
D
Kamilya
Dipangka
D
Saikia
Himadri
H
Saha
D000818:Animals; D017756:Aquaculture; D002347:Carps; D004305:Dose-Response Relationship, Drug; D005506:Food Contamination; D007194:India; D007501:Iron / Q000633:toxicity*; D036401:Toxicity Tests, Chronic; D014874:Water Pollutants, Chemical / Q000633:toxicity*
D014874:Water Pollutants, Chemical; D007501:Iron