Studies on Selected Myxobacteria Pathogenic for Fishes and on Bacterial Gill Disease in Hatchery-reared Salmonids

Studies on Selected Myxobacteria Pathogenic for Fishes and on Bacterial Gill Disease in Hatchery-reared Salmonids
Author: G. L. Bullock
Publisher:
Total Pages: 34
Release: 1972
Genre: Bacterial gill disease
ISBN:

Morphological, physiological, and serological studies on 55 myxobacteria isolated principally from gill disease, tail rot, and other myxobacterial infections showed that a variety of myxobacteria occur in these infections. Athought there were different morphological types of myxobacteria, all strains from freshwater and estuarine sources were physiologically similar. Isolates from marine sources were physiologically less active than the other test organisms.

Flowing Water Fish Culture

Flowing Water Fish Culture
Author: Richard W. Soderberg
Publisher: CRC Press
Total Pages: 160
Release: 2020-09-10
Genre: Science
ISBN: 1000114708

Flowing Water Fish Culture provides an in-depth discussion of the husbandry of fin fish in a stream of water. It guides the reader through the technical considerations of intensive aquaculture, including fish growth rates, hydraulic characteristics of fish rearing units, oxygen consumption rates in relation to oxygen solubility and fish tolerance of hypoxia, and water reconditioning by reaeration and ammonia filtration. Unlike other publications that provide only general overviews on the subject, this text/reference offers specific details that will be useful in the actual design and operation of a facility. Problem sets at the end of each chapter provide ample opportunity to develop skills. The information in the book is valuable for those teaching, considering, or practicing aquaculture at intensity levels ranging from conventional single-pass trout hatcheries to closed aquaculture systems.

The Pathology of Fishes

The Pathology of Fishes
Author: William E. Ribelin
Publisher: Univ of Wisconsin Press
Total Pages: 1012
Release: 1975
Genre: Medical
ISBN: 9780299065201

Specific diseases. Lesions of organic systems. Chemical and physical agents of disease. Nutritional diseases. Neoplasia.

Ecology of Larval Fishes in Lake Oahe, South Dakota

Ecology of Larval Fishes in Lake Oahe, South Dakota
Author: William Roland Nelson
Publisher:
Total Pages: 24
Release: 1980
Genre: Fishes
ISBN:

The time and location of spawning, food and larvae, and habitats used as nursery areas by young-of-the-year fishes were studied from 1972 to 1975 in South Dakota waters of Lake Oahe, a main stem Missouri River reservoir. Sampling locations were in the tributary rivres -- the Grand Moreau, and Cheyenne -- and their embayments. Year-class strength of river-spawning species was strongly correlated with river flow rates during the spawning season. Success of reservoir-spawning species was primarily dependent on above-average water levels, which inundated terrestrial vegetation to provide a substrate for egg deposition and cover for larvae. Preserving adequate streamflow and enhancing reservoir shoreline areas by managing water levels, seeding vegetation, and eliminating grazing alongshore would probably ensure adequate reproduction of most areas.

Technical Papers

Technical Papers
Author: United States. Bureau of Sport Fisheries and Wildlife
Publisher:
Total Pages: 736
Release: 1970
Genre: Fish culture
ISBN: