title: Impact of water quality on the stress physiology of cultured Labeo rohita (Hamilton-Buchanan).
abstract: Investigation was conducted for 12 months in two water bodies, S1 with optimum water quality and S2 receiving sewage water. The water quality parameters were assessed in relation to the impact on the stress sensitive physiological parameters of fish Labeo rohita. While optimum levels of transparency, dissolved oxygen, unionised ammonia, alkalinity and hardness in S1 reflected in minimum variation of the physiological parameters of L. rohita but suboptimal levels of DO (nil-18.0 mg/l) and CO2 (nil-16.0 mg/l) observed diurnally and unionised ammonia (0.11-0.42 mg/l) found throughout the experimental period, resulted in significant variation in plasma cortisol (90.0-377.0 ng/ml), cholesterol (89.6-285.0 mg/dl) and condition factor (0.7-1.3) in L. rohita. The results are of significance for fish aquatic habitat management.
authors.affiliation: Central Inland Fisheries Research Institute (Indian Council of Agricultural Research), Barrackpore, India.
authors.forename: Tanusree
authors.initials: T
authors.lastname: Dutta
authors.forename: Subhendu
authors.initials: S
authors.lastname: Acharya
authors.forename: Manas K
authors.initials: MK
authors.lastname: Das
mesh_terms: D000641:Ammonia / Q000032:analysis; D000818:Animals; D017756:Aquaculture / Q000379:methods*; D001774:Blood Chemical Analysis / Q000662:veterinary; D001824:Body Constitution / Q000187:drug effects; D002245:Carbon Dioxide / Q000032:analysis; D002784:Cholesterol / Q000097:blood; D003530:Cyprinidae; D005393:Fish Diseases / Q000139:chemically induced* / Q000503:physiopathology*; D005618:Fresh Water / Q000737:chemistry*; D006854:Hydrocortisone / Q000097:blood; D007194:India; D010100:Oxygen / Q000032:analysis; D013312:Stress, Physiological / Q000139:chemically induced / Q000503:physiopathology / Q000662:veterinary*; D013696:Temperature; D014874:Water Pollutants, Chemical / Q000633:toxicity*
chemical_list: D014874:Water Pollutants, Chemical; D002245:Carbon Dioxide; D000641:Ammonia; D002784:Cholesterol; D010100:Oxygen; D006854:Hydrocortisone