Browsing by Department "Fisheries and Allied Aquacultures"
Now showing items 181-200 of 354
Factors Affecting the Frequency of Oversized and Undersized Channel Catfish, Ictalurus punctatus, ? X Blue Catfish, I. furcatus, ? Hybrid Catfish at Food Fish Harvest and their Economic Impact
(2018-07-19)
Hybrid catfish (channel catfish, Ictalurus punctatus, ♀ x blue catfish, I. furcatus, ♂) farming is a prime example of yield intensification but has witnessed growth variability problem. Investigating the causative factors ...
Factors Affecting Variation in Growth of Channel Catfish Fingerlings and Mathematical Modelling of Their Population Statistics
(1995-06-07)
A partial differential equation was used to predict population structures in channel catfish, Ictalurus punctatus, fingerlings stocked at low (150,000/ha), medium (300,000/ha), or high (600,000/ha) densities in earthen ...
Factors Influencing Bioaccumulation of Polychlorinated Biphenyls in Six Fish Species in Logan Martin Reservoir, Alabama
(2006-05-15)
The objective of this project was to evaluate the biological and environmental factors that influenced the bioaccumulation of polychlorinated biphenyls (PCB) in the consumptive portions of fish. I investigated the ...
Feasibility of Hard Clam, Mercenaria mercenaria, Culture in Grand Bay, Alabama
(2008-08-15)
The northern hard clam, Mercenaria mercenaria, has proven to be a profitable aquaculture species along the Eastern seaboard as well as the west coast of Florida. The potential for M. mercenaria aquaculture in the North ...
Fine-scale movements and home ranges of red snapper Lutjanus campechanus around artificial reefs in the northern Gulf of Mexico
(2011-11-14)
Few studies have examined fine-scale movement patterns of continental shelf marine fishes. For example, little is known about an important marine species, red snapper Lutjanus campechanus, and its fine-scale movement ...
Fish Meal Replacement in Practical Diets for Pacific White Shrimp (Litopenaeus vannamei) Reared in Green Water Systems
(2006-08-15)
A series of experimental studies were conducted with Pacific white shrimp, Litopenaeus vannamei, to evaluate the use of plant protein sources as replacement ingredients for fish meal in commercially manufactured diets for ...
Fortification of commercial catfish rations with superdoses of phytase enzymes increases hematological parameters and mineral stores in channel catfish (Ictalurus punctatus) and hybrid catfish (Ictalurus punctatus x Ictalurus furcatus)
(2017-04-17)
Phytic acid is a well-known antinutritional factor and readily binds to di and trivalent ions reducing their bioavailability and thus absorption by the animal. Phytic acid levels in catfish diets have risen along with ...
Functional Genomics of Air Breathing in Catfish
(2020-05-14)
Channel catfish (Ictalurus punctatus), tra catfish (Pangasianodon hypophthalmus) and walking catfish (Clarias macrocephalus) all belong to order Siluriformes, but I. punctatus does not possess an air breathing organ (ABO) ...
Fundamental aspects of sperm biology for ecologically and economically important bivalve species in Alabama: Cellular signaling, morphology, and density quantification
(2020-05-21)
The Eastern oyster, Crassostrea virginica, and freshwater mussels, Ligumia subrostrata and Lampsilis straminea, are significant keystone species in the Eastern United States. These bivalves both provide invaluable environmental ...
Fundulus grandis otolith microchemistry as a metric of estuarine discrimination and environmental conditions in the northern Gulf of Mexico
(2014-06-25)
The Gulf Killifish Fundulus grandis is an important component of saltmarsh ecosystems and is an ideal choice as an indicator species for environmental changes, given that it remains near the same marsh throughout its life. ...
Gene Editing and Hormone Therapy to Control Reproduction in Channel Catfish, Ictalurus punctatus
(2019-04-23)
Channel catfish (Ictalurus punctatus) and their hybrids account for more than 60% of aquaculture production in the US. The catfish industry is being severely challenged during recent years as a result of higher operating ...
Gene Editing of Luteinizing Hormone, Follicle-stimulating Hormone and Gonadotropin-releasing Hormone Genes to Sterilize Channel Catfish, Ictalurus punctatus, using Zinc Finger Nuclease, Transcription Activator-like Effector Nuclease and Clustered Regularly Interspaced Short Palindromic Repeats/Cas9 Technologies
(2015-12-10)
Channel catfish (Ictalurus punctatus) is the leading freshwater aquaculture species in the US, but the catfish industry has been in crisis during the past few years. Genetically enhanced fish can greatly contribute to ...
General Fish Health Assessment and Age Evaluation of Impinged Fish at Steam Generating Power Plants
(2008-12-15)
Fish health assessments were made between impinged and reference fish collected at and in the vicinity of Steam Plant Gorgas (Black Warrior River, Walker County, Alabama) during three seasons: spring/summer, fall, and ...
Genetic analysis of loci controlling heat tolerance and ESC disease resistance in catfish
(2018-07-25)
Catfish is one of the main aquaculture species in the US. However, the catfish industry is under the threat of various of environmental stresses and diseases, with heat stress and ESC are two major representatives. One ...
Genetic Effects on the Production of Channel Catfish (Ictalurus punctatus) Female X Blue Catfish (Ictalurus furcatus) Male Hybrid Fry
(2007-08-15)
The hybrid from the mating of a female channel catfish (Ictalurus punctatus) with a male blue catfish (Ictalurus furcatus) exhibits heterosis for various performance traits which would make it attractive to the commercial ...
Genetic Resources for Improved Selection and Management of Aquaculture and Conservation Fish Species
(2019-11-21)
Molecular markers are versatile tools for conservation genetics allowing the identification of populations in genetic crisis, resolving taxonomic uncertainties, and establishing management units within fish species. Advances ...
Genetic Response to Acute Hypoxia in Channel Catfish (Ictaluruspunctatus), Blue Catfish (Ictalurusfurcatus) and Hybrid Catfish
(2012-08-10)
The catfish industry is one of the largestdomestic aquaculture markets in the United States. In aggregate, the industry was valued at $423 million dollars in 2011 and is dominated by the production of channel catfish ...
Genetic Technologies for Disease Resistance Research and Enhancement in Catfish
(2016-12-09)
A microinjection protocol was developed and validated for CRISPR/Cas9 gene editing in channel catfish, Ictalurus punctatus. This protocol proved to be rapid, efficient and does not require elaborate equipment or a high ...
Genome-wide association studies for columnaris resistance and morphology in hybrid catfish
(2016-03-03)
Catfish is the primary aquaculture species in the United States. Recently, the catfish industry in the USA has encountered unprecedented challenges due to increasing feed and energy costs, devastating diseases, and severe ...
Genome-wide Characterization of Heat Shock Proteins in Channel Catfish (Ictalurus punctatus) and Determination of Their Involvement in Diseases
(2014-11-24)
Heat shock proteins (HSPs) consist of a large group of chaperones whose expression is induced by a number of stresses such as exposures to high temperature, hypoxia and infection.
In this study, I identified a total of ...