Author: Publisher:
ISBN:
Category : Aquaculture
Languages : en
Pages : 28
Book Description
Qualitative and Quantitative Bacteriological Studies on a Fluidized Sand Biofilter Used in a Semiclosed Trout Culture System
Qualitative and Quantitative Bacteriological Studies on a Fluidized Sand Biofilter Used in a Semiclosed Trout Culture System
Author: Qualitative and Quantitative Bacteriological Studies on a Fluidized Sand Biofilter Used in a Semiclosed Trout Culture System
Author: Qualitative and Quantitative Bacteriological Studies on a Fluidized Sand Biofilter Used in a Semiclosed Trout Culture System
Author: U.S. Fish and Wildlife ServicePublisher:
ISBN:
Category :
Languages : en
Pages : 21
Book Description
We conducted a study of the numbers and types of heterotrophic bacteria that occur in a fluidized sand biofilter and in rearing water in a semiclosed trout culture research system at the Freshwater Institute, Shepherdstown, West Virginia. Methods were developed for sampling the biofilter at various depths, removal of bacteria from the biofilm on sand particles, selection of appropriate media for enumeration of bacteria, and plate count procedures. Sonication of sand from biofilters and a spread plate technique provided the best results in determining total counts of heterotrophic bacteria. In addition to determining total heterotrophic bacteria, the study was designed to detect the presence of the opportunistic fish pathogens Aeromonas hydrophila and Pseudomonas fluorescens, as well as denitrifying bacteria.
Rainbow Smelt--larval Lake Herring Interactions
Author: James H. SelgebyPublisher:
ISBN:
Category : Lake herring
Languages : en
Pages : 16
Book Description
Publications List
Author: Recreational-boating Disturbances of Natural Communities and Wildlife
Author: Darryl YorkPublisher:
ISBN:
Category : Boats and boating
Languages : en
Pages : 36
Book Description
Relations Between Habitat Variability and Population Dynamics of Bass in the Huron River, Michigan
Author: Ken D. BoveePublisher:
ISBN:
Category : Fish populations
Languages : en
Pages : 72
Book Description
Monthly Catalogue, United States Public Documents
Author: Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 752
Book Description
Author: