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Dissertations / Theses on the topic 'Fulvescens'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

Choudhury, Anindo. "Parasites of the lake sturgeon, Acipenser fulvescens, systematics and biogeography." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/nq23590.pdf.

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2

Plohman, James. "The function of the lake sturgeon, Acipenser fulvescens, thyroid system and dietary effects." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape2/PQDD_0020/MQ53206.pdf.

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3

Lembke, Hannah. "An investigation into the physiology of urate pellet excretion by Parcoblatta fulvescens (Saussure and Zehntner) (Dictyoptera: Blattellidae)." Thesis, Virginia Polytechnic Institute and State University, 1985. http://hdl.handle.net/10919/50047.

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Physiological parameters involved in formed urate pellet excretion by the wood cockroach, <i>Parcoblatta fulvescens</i> were investigated. Uric acid excretion by last instar juvenile <i>P. fulvescens</i> was studied first. Food consumption, urate and non-urate pellet excretion patterns show a skewed distribution with peak feeding occurring on day six and peak voiding of both pellet types on day seven of a 17.0 ± 2.0 (SD) day ecdysial cycle. The amount of urates excreted is determined by the level of dietary protein (p<0.0001) and is linearly related to protein consumption. Selective feeding

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4

Meyer, Michaela. "Peripheral neural coding strategies for spectral analysis and sound source location in the non-teleost bony fish, Acipenser fulvescens." College Park, Md.: University of Maryland, 2008. http://hdl.handle.net/1903/8147.

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Thesis (Ph. D.) -- University of Maryland, College Park, 2008.<br>Thesis research directed by: Dept. of Biology. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.

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5

Collier, Jessica J. "Creating a Spatially-Explicit Habitat Suitability Index Model for Lake Sturgeon (Acipenser fulvescens) in the Maumee River, Ohio." University of Toledo / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1525350340081516.

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6

Van, Walleghem Elissa. "Analytical performance characteristics and application of diagnostic tests for Namao virus in experimentally infected and wild Manitoba lake sturgeon (Acipenser fulvescens)." Diseases of Aquatic Organisms, 2013. http://hdl.handle.net/1993/30754.

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Namao virus (NV) was associated with mortality in lake sturgeon Acipenser fulvescens reared as part of a conservation stocking program for this endangered species in Manitoba, Canada. The virus itself was large, doubly encapsidated and icosahedral-shaped. Phylogenetic analyses using the major capsid protein showed that NV and other epitheliotropic sturgeon nucleo-cytoplasmic large DNA viruses shared a common evolutionary past and formed a distinct evolutionary lineage within Megavirales. Three PCR tests were developed and their analytical performance was validated for detection of these vir

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7

Block, David. "Growth estimates, habitat use and ecology of the lake sturgeon, Acipenser fulvescens Rafinesque, from Round Lake and mature reservoirs in the Winnipeg River." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/MQ62694.pdf.

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8

"Life-skills training for juvenile lake sturgeon (Acipenser fulvescens)." Thesis, 2015. http://hdl.handle.net/10388/ETD-2015-01-1928.

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Hatchery supplementation of declining fish populations is used for increasing year-class strength, particularly when fish are released with knowledge of local predators. The ability of young-of-the-year lake sturgeon (Acipenser fulvescens) to avoid predation, as well as their vulnerability to predation, remains undocumented. The objective of my thesis was to determine: 1) whether hatchery-reared, predator-naive juvenile sturgeon would respond to alarm cues from injured conspecific cues, a reliable indicator of predation risk in other fishes; and 2) if sturgeon would learn to identify unknown p

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9

Choudhury, Anindo. "PArasites of th lake sturgeon, Acipenser fulvescens, systematics and biogeography." 1997. http://hdl.handle.net/1993/788.

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Sturgeons (Osteichthyes: Acipenseridae) are evolutionary relics with a wide distribution in the northern hemisphere. As basal actinopterygian fishes with a basic diadromous life history and a markedly diverse assemblage of host specific parasites, sturgeons provides ideal opportunities for exploring the historical biogeography of host parasite relationships. However, the considerable database for sturgeon parasites in Eurasia has, in the past, contrasted with the lack of comparable data from North American sturgeons, a discrepancy which has also prevented any meaningful analyses of their biog

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10

Veillette, François. "Étude de différents indicateurs biologiques chez l'esturgeon jaune (Acipenser fulvescens) du Québec." Mémoire, 2007. http://www.archipel.uqam.ca/4761/1/M9778.pdf.

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Au Québec, l'esturgeon jaune (Acipenser fulvescens) fait l'objet d'une pêche commerciale importante malgré le fait qu'à l'échelle mondiale la plupart des espèces d'esturgeons sont menacées de disparition. Si les données dont disposent les intervenants dans la gestion de cette ressource les informent sur l'état des stocks, en terme de quantité, elles ne les renseignent pas sur la qualité des individus pêchés. Des doutes subsistent sur le potentiel réel de régénération et de subsistance à long terme de cette espèce. Ce travail vise à élargir nos connaissances sur l'esturgeon jaune du Québec, une

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11

McDougall, Craig. "Investigating downstream passage of lake sturgeon, Acipenser fulvescens, through a Winnipeg River generating station." 2012. http://hdl.handle.net/1993/5082.

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Lake sturgeon, recently recommended to be listed as an endangered species under the Species at Risk Act, inhabit the various impoundments of the Winnipeg River system. Downstream passage through hydroelectric generating stations represents one of the major data gaps in our understanding of how hydroelectric development may be impacting lake sturgeon populations. Acoustic telemetry was used to investigate coarse-scale movements of juveniles, sub-adult and adults throughout the Slave Falls Reservoir, a 10 km long Winnipeg River impoundment, to assess patterns of downstream passage susceptibility

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12

Klassen, Cheryl. "Growth rate and size variability among juvenile lake sturgeon, Acipsenser fulvescens: implications for recruitment." 2014. http://hdl.handle.net/1993/23595.

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There is a growing recognition that conservation programs using hatchery-reared fish should strive to produce individuals that represent phenotypes present in natural environments. Size variability within cohorts, mediated through inter-individual differences in growth rates, provides one avenue by which phenotype can be studied. High growth rates are generally equated with greater fitness. However, there is evidence that fish with slower relative growth and smaller sizes continue to persist within populations. This thesis aimed to better understand the causes and potential implications of var

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13

Carriere, Benjamin. "Validation and evaluation of the stable isotope marking technique in the lake sturgeon, Acipenser fulvescens." 2015. http://hdl.handle.net/1993/30623.

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In this thesis the enriched stable isotope marking technique was examined to determine its validity and effectiveness in marking of Lake Sturgeon fin rays. The enriched stable isotope marking technique uses stable isotopes of elements that replace calcium in boney tissue, which are fixed in nature, however in laboratory settings can be easily manipulated. Manipulated ratios of naturally occurring isotopes can be determined from a small sample of the fin ray, thus allowing for the discrimination of fish stocks. Further, the thesis examined the underlying assumptions for strontium and barium int

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14

"Changes in Lake Sturgeon (Acipenser fulvescens) Habitat in the South Saskatchewan River under Regional Climate Change." Thesis, 2015. http://hdl.handle.net/10388/ETD-2015-05-2068.

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Climate change effects have been documented in the Canadian Prairie Provinces. Temperature is predicted to continue to increase, and precipitation patterns are changing. As a result, river flow is anticipated to diminish. The South Saskatchewan River (SSR) provides vital habitat to lake sturgeon. Lake sturgeon are currently endangered or threatened across most of their native range, prompting provincial governments to develop management strategies. As lake sturgeon habitat is dependent on flow, understanding climate change impacts on flow conditions in the SSR will be an important component of

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15

Crossman, James Andrew. "Evaluating collection, rearing, and stocking methods for lake sturgeon (Acipenser fulvescens) restoration programs in the Great Lakes." Diss., 2008.

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Thesis (Ph. D.)--Michigan State University. Dept. of Fisheries and Wildlife, 2008.<br>Title from PDF t.p. (viewed on July 23, 2009) Includes bibliographical references (p. 160-179). Also issued in print.

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16

Kjartanson, Shawna. "Population Structure and Genetic Diversity of Lake Sturgeon (Acipenser fulvescens) in Canada: Evaluation of Designatable Units for Conservation." Thesis, 2009. http://hdl.handle.net/1807/17691.

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The lake sturgeon (Acipenser fulvescens), is a species with considerable ecological, social and economic value. Unfortunately, over-exploitation and habitat alteration have led to the collapse of lake sturgeon fisheries across North America. Based on conservation concerns, the Committee on the Status of Endangered Wildlife in Canada (COSEWIC) identified eight designatable units (DUs) among Canadian populations of lake sturgeon using the limited information available. These DUs are intended to represent taxonomically, genetically, geographically, or biogeographically distinct units below the sp

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17

Zubair, Sadaf Naeem. "Ontogeny of the cortisol stress response in lake sturgeon Acipenser fulvescens as influenced by substrate and temperature during early development." 2010. http://hdl.handle.net/1993/21611.

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18

Barth, Cameron Charles. "Ecology, behavior, and biological characteristics of juvenile lake sturgeon, Acipenser fulvescens, within an impounded reach of the Winnipeg River, Manitoba, Canada." 2011. http://hdl.handle.net/1993/4800.

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The lake sturgeon, Acipenser fulvescens, was once abundant throughout Canada and the United States, however, high commercial harvests and habitat alterations have dramatically reduced most populations. The species was extirpated from many rivers that it once inhabited, and has been designated as threatened or endangered throughout its range. Currently, few healthy lake sturgeon populations remain and the species is receiving considerable attention with respect to its protection and recovery. Although considerable effort is underway to conserve the species, several factors, including over-harve

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19

Waheed, Ahmed. "The influence of social and environmental factors on the stress response and development in juvenile & larval lake sturgeon, Acipenser fulvescens." 2012. http://hdl.handle.net/1993/5087.

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This thesis has examined the influence of the environment on aspects of the acute stress response in juvenile and pro-larval Acipenser fulvescens.The acute stress response was examined in grouped and isolated juveniles. Catecholamines significantly increased in both treatments one minute post-stress and plasma glucose was significantly higher in isolated as compared to grouped fish one minute post-stress. In the second series of experiments fertilized eggs of A. fulvescens were raised at 9, 12 & 15°C. Chromaffin-like cells were studied using light and electron microscopy techniques. Developmen

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20

Burnett, Duncan. "Thyroid development in larval lake sturgeon (Acipenser fulvescens) and the potential thyroid disruption associated with exposure to the organophosphate pesticide chlorpyrifos." 2014. http://hdl.handle.net/1993/23554.

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The thyroid hormone system plays a major role in larval development, growth, and metabolism in fish. Therefore, any anthropogenic alteration in thyroid function could have dramatic effects on individual fitness. In this study Lake Sturgeon, Acipenser fulvescens, larvae were exposed to a commercially used organophosphate pesticide, chlorpyrifos (0, 5, 500 and 2000ng/L), from hatch until the onset of exogenous feeding (~12 days at 14C). The presence of thyroid follicles was first observed at 6 days post hatch (dph). Molecular expression of thyroid receptor α (TRα) increased from 3 to 12dph and

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21

Bott, Kristin Janet. "Genetic analyses of dispersal, harvest mortality, and recruitment for remnant populations of Lake Sturgeon, Acipenser fulvescens, in open-water and riverine habitats of Lake Michigan." Diss., 2006.

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22

Huang, Bow-Shin, and 黃柏欣. "1. Chemical Constituents from the Fruits of Desmos cochinchinensis var. fulvescens2. The Inhibiting Activity of Traditional Chinese Medicine Extracts Against Colletotrichum higginsianum3. Cytotoxic Constituents from the Dichloromethane Layer of Methanol Extracts of the Leaves of Aquilaria sinensis." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/8vm5q6.

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碩士<br>國立虎尾科技大學<br>生物科技研究所<br>101<br>The fruits of Desmos cochinchinensis var. fulvescens collected from Vietnam were extracted with methanol under reflux. The methanol extracts were fractionated, and further purified with the assistance of column chromatography to afford sixteen compounds. Seven characterized compounds were subjected into the NO inhibitory activity examinations and among the tested compounds, desmosflavone (34) exhibited the most significant inhibition on NO production with IC50 of 23.9 ± 1.1 μM. In the organic vegetables cultivation fields, the cabbage anthracnose caused by

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