00000nam 2200000za 4500 9.612998 CaOODSP 20250903102620 ta 150406|1996||||xxc||||| f|0| 0 eng d 0-662-24505-9 1192-3571 CaOODSP eng n-cn--- R71-49/3-89E Northern River Basins Study (Canada)‏. Analyses for circulating gonadal sex steroids and gonad morphology in fish : Peace, Athabasca and Slave river basins, September to December, 1994 / by S. B. Brown et al. Edmonton - Alberta : Northern River Basins Study 1996. v, 125p. : graphs, references, tables ; 28 cm. Northern River Basins Study project report 1192-3571 No. 89 "The objective of this project was to examine reproductive indices in fish collected from the Peace, Athabasca and Slave rivers and their major tributaries. The fish species targeted for collection and analyses were burbot (primary target species), northern pike, longnose sucker and flathead chub. Biochemical and histological approaches included analyzing levels of gonadal sex steroid hormones, measuring gonad morphology, and estimating fecundity."--Study perspective. Issued also in electronic format. The objective of this project was to examine reproductive indices in fish collected from the Peace, Athabasca and Slave rivers and their major tributaries. The fish species targeted for collection and analyses were burbot (primary target species), northern pike, longnose sucker and flathead chub. Biochemical and histological approaches included analyzing levels of gonadal sex steroid hormones, measuring gonad morphology, and estimating fecundity.--Study perspective Ring binding 96-22 1996-05-31 Fish gcpds Brown, S. B. Analyses for circulating gonadal sex steroids and gonad morphology in fish : (CaOODSP)9.954730 Northern River Basins Study project report, 1192-3571 No. 89 (CaOODSP)9.514881 Project 3144-D3