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 20 of 21 for “"Petromyzon marinus"”.
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Identification and Characterization of Developmentally Regulated Components of the Stress Axis in Petromyzon Marinus
… recently been suggested in the lamprey species Petromyzon marinus, a member of the ancient vertebrate superclass agnatha, by identification of pituitary and inter-renal components corticotrophin (ACTH) and 11- deoxycortisol respectively. This study, however, is the first to identify the …
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Suction pressure measurement and behavioral observations of sprawning-run sea lampreys (<i>Petromyzon marinus</i>)
<p>Sea lampreys utilize attachment by suction throughout their life cycle. Despite the importance of this behavior, the role of surface texture in the attachment process has not been fully understood. The goal of this study was to develop a technique to quantitatively examine attachment abilities …
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Movement ecology of two threatened anadromous species, twaite shad Alosa fallax and sea lamprey Petromyzon marinus, revealed by acoustic telemetry.
… for groups such as the Alosinae (shads) and Petromyzontiformes (lampreys), for which movements and space use during both freshwater spawning migrations and the marine life-phase is poorly understood, compared with anadromous species of the Salmonidae family. Here, the movement ecology of …
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Glycoprotein hormone receptors in sea lamprey (Petromyzon marinus): Identification, characterization and implications for the evolution of the vertebrate hypothalamic-pituitary-gonadal/thyroid axes
<p>The vertebrate hypothalamic-pituitary-gonadal (HPG) and hypothalamic-pituitary-thyroid (HPT) endocrine axes involve specific interaction between pituitary glycoprotein hormones GpH (lutropin LH, follitropin FSH, thyrotropin TSH) and glycoprotein hormone receptors GpH-R (LH-R, FSH-R and TSH-R …
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Osmoregulatory role of the intestine in fish physiology. Evolutionary, environmental, and toxicant implications
… basal ion- and osmo- regulator, the sea lamprey (Petromyzon marinus), and in a much recent diverged teleost, the Senegalese sole (Solea Senegalensis). Additionally, aquafeeds' effects contaminated with aflatoxin B1 on growth performance and intestinal physiology are also examined, using gilthead …
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Spatial and Temporal Patterns of Anadromous Fish Passage at Boshers Dam Vertical Slot Fishway on the James River, Richmond, Virginia
… shad (Alosa sapidissima) and sea lamprey (Petromyzon marinus) passage. The ecological effects of restoring connectivity to upstream habitat for gizzard shad (Dorosoma cepedianum) and blue catfish (Ictalurus furcatus) are also discussed. Regression analysis determined that the best predictor …
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DELAYED EFFECTS OF SUB-LETHAL LAMPRICIDE, 3-TRIFLUOROMETHYL-4-NITROPHENOL (TFM), EXPOSURE ON THE METABOLIC PHYSIOLOGY OF JUVENILE LAKE STURGEON (<em>ACIPENSER FULVESCENS</em>)
… used to control invasive sea lamprey (<em>Petromyzon marinus)</em>. Little is known about how TFM would affect juvenile lake sturgeon (age-0) at the sub-lethal concentrations encountered during routine lampricide treatments; specifically, its effects on growth, stress response, and …
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Waterfront spectacular
… aquatic invasive species: the sea lamprey (Petromyzon marinus) and zebra mussel (Dreissena polymorpha) and asserts that making work visible, in public, is spectacular—as noted, “a visible deviation from the norm intended to provoke a response.” In conclusion, this thesis discusses how …
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Volumetric analysis of lamprey hydrodynamics using synthetic aperture particle image velocimetry
… flow field analysis of freely swimming lamprey, Petromyzon marinus, are presented from SAPIV experiments. As the most primitive living vertebrate, this eel-shaped fish has served as a model organism for understanding locomotion control in vertebrates. Brain and spinal cord mappings of the lamprey …
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Transcriptome Analysis of Sea Lamprey Embryogenesis
<p>The sea lamprey (<em>Petromyzon marinus</em>) has survived throughout evolution for hundreds of millions of years. It is considered an invasive species to the Great Lakes that has caused dramatic changes in the ecosystem for fish communities resulting in the collapse of a fishing industry that …
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Hair Bundles of a Jawless Vertebrate Employ Tetrapod-Like Tuned Mechanical Amplification
… ears of two jawless vertebrates, the sea lamprey Petromyzon marinus and the American brook lamprey Lampetra appendix. We observe spontaneous oscillations in both of these animals. In the latter species, we also show evidence that their oscillations stem from mechanisms similar to those driving the …
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Lífshættir flundru (Platichthys flesus) á ósasvæði Hvítár í Borgarfirði
… tegundir hafa náð fótfestu hérlendis steinsuga (Petromyzon marinus), sandrækja (Crangon crangon), grjótkrabbi (Cancer irroratus) og flundra (Platichthys flesus), sem einnig nýtir búsvæði í árósum og ferskvatni á hluta lífsferilsins, en tegundin var fyrst greind á Íslandi árið 1999. Markmið …
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Deciphering the regulatory code driving neural crest evolution and development
… including peripheral neurons. The sea lamprey, Petromyzon marinus, is at the base of the vertebrate lineage and offers an ideal model for the ancestral neural crest. Comparisons to the modern neural crest gene regulatory network (GRN) such as that of the chicken can elucidate essential conserved …
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Faecal Sediments as Bio-Archives: The Fish Event Horizon in the Low Countries
… three very rarely reported species: sea lamprey (Petromyzon marinus), worm pipefish (Nerophis lumbricoides) and zander (Sander lucioperca). Overall, however, DNA consistently underperformed in comparison to sieved ichthyological/ zooarchaeological datasets, despite “gold- standard” preservation …
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