Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 17 of 17 for “"Dogfish"”.
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Aquaporin 3 Water Channel Protein Gene Expression in Squalis Acanthias Dogfish Shark
… in the epithelial cells of Squalus acanthias dogfish shark kidney, gills, rectal gland, esophagus, stomach, eye and brain. The full-length Squalus acanthias sequence has 73.8% amino acid identity to human AQP3. Quantitative PCR experiments suggest that constitutive AQP3 expression in the …
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Incorporating Migration and Local Movement Patterns into Management Strategies for Spiny Dogfish (Squalus acanthias)
… the separation of the northwest Atlantic Spiny Dogfish (Squalus acanthias) into separate management units. These management units are not genetically distinct, but rather would be based on unique behaviors adopted by hypothesized groups of dogfish that connect reproductive, feeding, and …
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Studies on the osmotic and ionic regulation of the striped dogfish Poroderma africanum (Gmelin)
… ionic regulation of the South African striped dogfish Poroderma africanum (Gmelin). The experiments where devised early in 1971 but due to the time required for personally constructing equipment and facilities and for modifying and equipping the laboratory and aquaria with the necessary …
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Regulation of Glucose Uptake and Transporter Expression in the North Pacific Spiny Dogfish (Squalus suckleyi)
… were investigated in the North Pacific spiny dogfish (Squalus suckleyi). In particular, the presence of a putative GLUT4 transporter, which was previously thought to have been lost in these fish, was established and its mRNA levels were shown to be upregulated by feeding (intestine, liver, and …
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Single nephron structure and function, and renal effects of catecholamines in the dogfish, Scyliorhinus canicula
1. The organisation of the kidney, and nephron structure of Scyliorhinus canicula, was examined using light and scanning electron microscopy. 2. Visceral epithelium of the glomerulus was composed of podocytes, primary processes and interdigitating pedicels. Morphological variations were common, …
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Updated life history and population structure assessment of spiny dogfish, Squalus acanthias, in the Gulf of Maine
<p>Spiny dogfish (Squalus acanthias) are considered to be the most abundant shark species in the Western North Atlantic, but recently there was a decline in biomass estimates following a nearly ten-fold increase in fishery landings. Because fishing pressure has been shown to affect population …
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Isolation And Characterisation Of Immunoglobulin Gene Superfamily Molecules From Lower Vertebrates (Fish)
… the amplification of the TCR-like genes from dogfish, Scyliorhinus canicula; secondly, to employ a similar strategy using degenerative primers to the banded houndshark MHC class-I α3 DNA sequence, to amplify MHC genes from S. canicula. Using the degenerative primers, four clones from dogfish …
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Molecular and Functional Analyses of Transport Proteins for Organic Anions
… tubules of killfish and CP of rat and spiny dogfish shark. ·First, I studied transport of the fluorescent cAMP analog fluo-cAMP. Inhibition studies indicate transport mediated by the export proteins Mrp2 and Mrp4. In contrast to transport of the Mrp2-substrate fluorescein-methotrexate …
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A Multimedia Atlas of Dissection for Comparative Anatomy of the Vertebrates
… of the Phylum Chordata: amphioxus, lamprey, dogfish shark, mud puppy, and cat. Specimens were dissected according to the modified method of Wischnitzer, 1993, and each stage was photographed with a Kodak DC120 digital zoom camera. These images were processed on a Power Macintosh 7600 computer …
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Delination of Coastal Shark Habitat within North Carolina Waters Using Acoustic Telemetry, Fisher-Independent Surveys, and Local Ecological Knowledge
… separated based on water temperature. Smooth Dogfish (Mustelus canis), and Spiny Dogfish (Squalus acanthias) occurred primarily during mid-afternoon and Blacknose Sharks (Carcharhinus acronotus) occurring most often at night. A large Bull Shark tagged in another study accounting for the …
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Hydrodynamics of magnet-coil actuated robotic fish
… beat creates a wake structure similar to live dogfish sharks. Since the design of the Scuba Fish allowed more control over the motion of the tail, an additional ramp pwm caudal fin control was designed and tested in order to analyze the wake from a continuous tail beat. The results show that …
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UNCERTAINTY CONTRIBUTIONS TO SPECIES SPECIFIC ISOTOPE DILUTION ANALYSIS
… during equilibration with soil (NIST2710 SRM) or dogfish muscle (DORM-2 CRM), or during chromatographic separation. The extent of equilibration between the spike and the particulate bound mercury compounds was studied by temporal monitoring of the 200Hg:199Hg isotope amount ratio and determining …
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Speciation of Mercury by Chromatography Coupled with Atomic Spectrometry
… were validated using mussel homogenate and dogfish liver (IAEA 142, SRM 8044 and DOLT-2) certified reference materials. An interlaboratory comparision exercise was participated in and a method was developed for the detemination of methylmercury in Fucus sea plant (IAEA 140). A concentration …
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Evolution of the structure and function of vertebrate brain gonadotropin-releasing hormone
… as diverse as birds and elasmobranch fish. In dogfish (Poroderma africanum) brain seven factors, which stimulated release of LH from chicken dispersed anterior pituitary cells, were separated on analytical HPLC. Two of these factors were partially characterized as Trp⁷,Leu⁸-GnRH and …
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Assessment and prediction of the potential threats of temperature change and invasive species to the sustainability of Northern Irish sea fisheries
… Linnaeus, 1758) and a non-commercial predator, dogfish (Sycliorhinus canicula; Linnaeus, 1758) with regards to substrate type. While there were no significant conclusions to be made about habitat use, I found significantly larger populations of S. canicula and higher consumption of commercial …
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Historical baselines and a century of change in the demersal fish assemblages on South Africa's Agulhas Bank
… 4 738% of historical abundance), spiny dogfish (Squalus spp.; 3 121% of historical abundance), hake (Merluccius capensis; 558% of historical abundance) and white sea catfish (Galeichthys feliceps; 13 863% of historical abundance). Analysis of available length information confirmed the …