Search
Now showing items 61-70 of 354
Identification and analysis of genome-wide SNPs provide insight into signatures of selection and domestication in channel catfish (Ictalurus punctatus)
(2014-12-10)
Domestication and selection for important performance traits can impact the genome, which is most often reflected by reduced heterozygosity in and surrounding genes related to traits affected by selection. In this study, ...
Effects of pre- and probiotics on pond production, growth and disease susceptibility of channel catfish Ictalurus punctatus and Nile tilapia Oreochromis niloticus
(2013-12-04)
Disease outbreaks have become a major challenge to the profitable culture of fish and shellfish as aquaculture operations intensify. Globally, total annual losses from disease outbreaks have reached billions of United ...
Pattern of Invasion of a Nonindigenous Cyprinid and Potential Shifts in Native Fish Assemblage Structure
(2014-05-12)
Invasive species increasingly threaten global biodiversity with faunal homogenizations and are of specific concern in the highly diverse aquatic systems of the Southeast United States. However, patterns of invasion and ...
Assessing effects of supplemental feeding and Threadfin Shad addition to recreational fishing ponds using stable isotope analysis
(2014-05-05)
Pond enhancements are commonly used to increase fish production or enhance angling opportunities, but their effects are often not evaluated. I used stable isotope analysis to estimate the contribution of different rates ...
Genomic Characterization of Expressed Sequence Tags and Gene Expression Profiling of the Three Life-Cycle Stages of Ichthyophthirius multifiliis
(2010-05-05)
The ciliate protozoan Ichthyophthirius multifiliis (Ich) is an important parasite of freshwater fish that causes 'white spot’ disease. Ich is a major contributor of fish mortalities and economic loss to both the ornamental ...
Intensive Culture of Channel Catfish Ictalurus punctatus and Hybrid Catfish Ictalurus punctatus x Ictalurus furcatus in a Commercial-Scale, In-pond Raceway System
(2010-07-09)
An experiment was conducted utilizing a highly intensive fish production system in the Black Belt region of western Alabama. Three main objectives were addressed in this study. The first was based primarily on channel and ...
Quantitative methods for integrating instream biological monitoring data into aquatic natural resource management decision making
(2015-03-20)
Freshwater aquatic resource management is fraught with challenges, as managers of multiple-use, highly diverse systems must frequently make management decisions with limitations including unclear management objectives and ...
Effects of Anoxia on Histology, Bacteriology, Condition Index, Glycogen Levels, and Fecundity in the Eastern Oyster, Crassostrea virginica
(2008-09-09)
The eastern oyster, Crassostrea virginica, is well known for its commercial and ecological roles in Mobile Bay, AL. During summer months oysters may be exposed to hypoxic and occasionally anoxic conditions which in turn ...
Genotype-Environment Interactions For Growth, Survival, Sexual Dimorphism and Seinability For Different Genetic Types of Channel Catfish (Ictalurus punctatus) ♀ X Blue Catfish (I. furcatus) ♂ Cultured In Three Environments
(2014-08-01)
For this study, eight genetic types of channel catfish (Ictarulus punctatus) female x blue catfish (I. furcatus) male hybrids were reared in three environments: a low density pond, a high density pond and an in-pond raceway ...
Resource Use and Waste Production at a Semi-Intensive Black Tiger Prawn Penaeus Monodon Farm
(2008-09-09)
A study of resource use and waste production was conducted at the Aqualma shrimp farm in Madagascar . This farm has 685 ha of grow-out ponds where black tiger prawn Peneaus monodon are produced by semi-intensive production ...