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Articles 1 - 8 of 8
Full-Text Articles in Aquaculture and Fisheries
Monogenic Control Of Sex-Limited Colouration In The Honey Gourami, Trichogaster Chuna, Jack Frankel
Monogenic Control Of Sex-Limited Colouration In The Honey Gourami, Trichogaster Chuna, Jack Frankel
Department of Biology Faculty Publications
Of the numerous subtropical and tropical freshwater speciesof fish, labyrinth fish are among the most varied in bodymarkings and colouration patterns. Four taxonomic families(Belontiidae, Anabantidae, Helostomatidae, and Osphrone-midae) of the suborder Anabantoidei comprise the ‘tradi-tional’ labyrinth fishes, a group of about 80 African andSoutheast Asian species (Linke 1991). These Anabantoidsare popular with aquarists due to their interesting reproduc-tive behaviours, with males of most species brooding eggs intheir mouths or in floating bubble nests (Vevers 1980; Linke1991; Axelrod and Vorderwinkler 1995; Mills 2000). Theyhave also been the focus of genetic, environmental, and mor-phological studies (Sommer 1982; Gosline 1985; Klinkhardtet al. 1995; …
Yellow Head Virus: Transmission And Genome Analyses, Hongwei Ma
Yellow Head Virus: Transmission And Genome Analyses, Hongwei Ma
Dissertations
Yellow head virus (YHV) is an important pathogen to shrimp aquaculture. Among 13 species of naturally YHV-negative crustaceans in the Mississippi coastal area, the daggerblade grass shrimp, Palaemonetes pugio, and the blue crab, Callinectes sapidus, were tested for potential reservoir and carrier hosts of YHV using PCR and real time PCR. The YHV replicated in the daggerblade grass shrimp, and was still detectable on 36 d post-inoculation, causing 8% mortality after injection. However, YHV did not replicate in the blue crab. These data suggest that the daggerblade grass shrimp could act as a reservoir host for YHV. Storage conditions of …
Corallivorous Reef Fishes As Potential Vectors Of Coral Disease Based On A Study Of Dietary Preferences, Tanya Rogers
Corallivorous Reef Fishes As Potential Vectors Of Coral Disease Based On A Study Of Dietary Preferences, Tanya Rogers
Independent Study Project (ISP) Collection
The prevalence of coral disease appears to be increasing worldwide, although little is known about how these diseases are transmitted between coral colonies. To examine whether corallivorous fishes could potentially act as disease vectors, this study examined whether and which fish species feed on diseased coral, and whether these fishes actively target diseased coral sections. Branches of Acropora muricata with brown band disease were filmed in the field, and bites taken by fishes on different sections of the coral (live tissue, tissue margin, disease band, dead skeleton, and algae) were recorded. For each fish species, electivity indices were calculated for …
A Strategy For Managing The Recreational Catch Of Demersal Scalefish In The West Coast Bioregion. Decisions By The Minister For Fisheries, Jon Ford (Minister For Fisheries; The Kimberley, Pilbara And Gascoyne)
A Strategy For Managing The Recreational Catch Of Demersal Scalefish In The West Coast Bioregion. Decisions By The Minister For Fisheries, Jon Ford (Minister For Fisheries; The Kimberley, Pilbara And Gascoyne)
Fisheries management papers
The following recreational fisheries management package is a result of an extensive public consultation process. The package has been carefully developed to deliver the required reduction in catches. It is important to understand that each management measure contributes to the reduction in catches necessary to give these stocks a chance to rebuild and that no measure on its own will deliver the required reduction in catch.
To ensure the ongoing recovery of stocks, an adaptive approach to management has been adopted. This approach will involve an ongoing review of the effectiveness of these management arrangements, and take into account the …
A Systematic And Taxonomic Review Of The Family Pseudotanaidae (Crustacea: Peracarida: Tanaidacea) Based Primarily On Morphometry Cladistic Analyses, Jerry Alan Mclelland
A Systematic And Taxonomic Review Of The Family Pseudotanaidae (Crustacea: Peracarida: Tanaidacea) Based Primarily On Morphometry Cladistic Analyses, Jerry Alan Mclelland
Dissertations
Species of the tanaid family Pseudotanaidae, established by Jurgen Sieg in 1973, have been reported from all the world's oceans in depths ranging from near the surface to below 6,000 m. The family currently consists of 46 characteristically small tanaidomorph species residing in two subfamilies, the Cryptocopinae (seven species) and the Pseudotanainae (39 species). Members of the more ancestral Crytocopinae differ from the Pseudotanainae by having females with four rather than three antennule articles and a complete separation of the maxilliped endites. The primary objective of this study was to test the hypothesis that the current structure of the family …
Optimal Data Partitioning And A Test Case For Ray-Finned Fishes (Actinopterygii) Based On Ten Nuclear Loci, Chenhong Li, Guoqing Lu, Guillermo Orti
Optimal Data Partitioning And A Test Case For Ray-Finned Fishes (Actinopterygii) Based On Ten Nuclear Loci, Chenhong Li, Guoqing Lu, Guillermo Orti
Biology Faculty Publications
Data partitioning, the combined phylogenetic analysis of homogeneous blocks of data, is a common strategy used to accommodate heterogeneities in complex multilocus data sets. Variation in evolutionary rates and substitution patterns among sites are typically addressed by partitioning data by gene, codon position, or both. Excessive partitioning of the data, however, could lead to overparameterization; therefore, it seems critical to define the minimum numbers of partitions necessary to improve the overall fit of the model. We propose a new method, based on cluster analysis, to find an optimal partitioning strategy for multilocus protein-coding data sets. A heuristic exploration of alternative …
Evaluation Of Aerial Cluster Sampling Of Double-Crested Cormorants On Aquaculture Ponds In Mississippi, Brian S. Dorr, Loren W. Burger Jr., Scott C. Barras
Evaluation Of Aerial Cluster Sampling Of Double-Crested Cormorants On Aquaculture Ponds In Mississippi, Brian S. Dorr, Loren W. Burger Jr., Scott C. Barras
USDA Wildlife Services: Staff Publications
Concern over increasing numbers of double-crested cormorants (Phalacrocorax auritus) and their impacts on channel catfish (Ictalurus punctatus) aquaculture has resulted in increased need for quantitative information to develop and evaluate depredation management efforts. We evaluated aerial surveys in a stratified cluster sampling (SCS) design to estimate and monitor abundance of cormorants on catfish aquaculture ponds in the Yazoo River Basin of Mississippi, USA (hereafter Yazoo Basin). Twice monthly abundance estimates and coefficient of variation during winter averaged 8,128 (n = 29, SE = 1,233) and 33% (n = 29, SE = 0.02), respectively. Counts of cormorants …
The Effect Of Road Crossing On Fish Movements In Small Etowah Basin Streams, Paul D. Benton, William E. Ensign, Byron J. Freeman
The Effect Of Road Crossing On Fish Movements In Small Etowah Basin Streams, Paul D. Benton, William E. Ensign, Byron J. Freeman
Faculty and Research Publications
Increased road construction associated with urbanization may result in fragmentation and loss offish populations in streams. In this study, we documented frequency of movement of fishes through three separate types of road-crossings (clear-span bridges, box culverts, and tube culverts) in six small streams using mark-recapture sampling. Upstream movement between areas separated by either box or tube culverts was lower than upstream movement between similar areas not separated by a road crossing. Downstream movement between areas separated by box culverts was also lower than downstream movement between areas without obstructions. Upstream and downstream movement between areas separated by clear-span bridges was …