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 62 for “"Lentic"”.
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The Dragonfly Fauna (Odonata:Anisoptera) of a Lentic Habitat in Southwestern Missouri
The adult and larval species of dragonflies found within an area known as Durst Park were collected and studies. The study area consisted of two adjacent ponds (together measuring 1.39 ha), nearby fields, and a flowing stream. Descriptions were made of the adult male, adult female, and larval form …
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Diatom and protozoan community analysis and colonization on artificial substrates in lentic habitats
… polyurethane foam (PF) artificial substrates in lentic habitats. This was the first study to utilize multivariate techniques for comparison of protozoan and diatom communities The following hypotheses were examined in this study: 1. diatom and protozoan species accrual is similar because the …
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Impact of Large Herbivore Use in Meadows on Lentic Function, Wetland Extent and Vegetation Hydric Status
… impact riparian plants needed for or leading to lentic functions and related wetland extent (in relation to potential meadow size) and vegetation hydric status (wetness). We examined wild horse and livestock grazing variables of timing, duration, and intensity of livestock grazing, based on the …
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Characterizing bias, precision, and sampling efficiency of commonly used electrofishing sampling designs in midwestern lentic systems
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-04-12 without embargo terms
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Effects of environmental warming on lentic freshwater communities and the behavioral and physiological responses by fishes to warming
Climatic changes are occurring across the globe and warming is a pervasive issue for ectotherms across all habitats. Freshwater ecosystems are threatened by anthropogenic warming, and with projected increases in global temperatures, understanding the impacts of warming on aquatic communities and …
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Determining the effects of non-native brook stickleback (Cualea inconstans) on the lentic systems at Turnbull National Wildlife Refuge, Cheney, WA
… metrics, and water quality parameters in twelve lentic systems on the refuge; those that contain brook stickleback or are fish free, and are either temporary or permanent. The fish free, permanent lentic systems had more macroinvertebrate and macrophyte taxonomic/species variety, more …
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Ecosystem engineering: beaver and the population structure of Columbia spotted frogs in western Montana
… Effects of beaver on the spatial pattern of lentic habitat and populations using those habitats have not been examined. I used a landscape database and eight microsatellite markers to compare the scale and pattern of lentic sites, their occupancy, and population structure by Columbia spotted …
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Ecosystem engineering: beaver and the population structure of Columbia spotted frogs in western Montana
… Effects of beaver on the spatial pattern of lentic habitat and populations using those habitats have not been examined. I used a landscape database and eight microsatellite markers to compare the scale and pattern of lentic sites, their occupancy, and population structure by Columbia spotted …
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Distribution Patterns and Taxonomy of Freshwater Ascomycetes Along the Florida Peninsula
… is not significantly different between lentic and lotic habitats. One hundred species of freshwater ascomycetes were reported only on woody debris, 18 species were found on both woody and herbaceous debris, but only 14 species occurred exclusively on herbaceous debris. Most of the taxa …
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Effects of Barren Reservoir on Upstream Fish Assemblages of Barren River Tributaries
… changes when a lotic system is turned into a lentic system, dams as barriers to migratory fishes, and the influence of introduced species often stocked into reservoirs. It has not been until relatively recently that the upstream effects have been studied. The central theme here is that while …
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Studies on the Odonata and Trichoptera of high-elevation lakes of northern Colorado and southern Wyoming
… insect species distributions at high-elevation lentic habitats in Northcentral Colorado and Southern Wyoming. I provided occurrence records of the Hudsonian Emerald dragonfly (Somatochlora hudsonica, HED) in Northcentral Colorado and Southern Wyoming. The HED is the only Colorado dragonfly …
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An Assessment of the Diverse Freshwater Turtle Fauna of Mississippi
… assemblages were assessed in both lotic and lentic environments from the Pascagoula, Pearl, Tombigbee, and Mississippi River drainages and were shown to vary among habitat types and between drainages. In addition to the statewide assessment of distributions and abundances, the Indicators of …
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Effects of Hydrological Connectivity on the Benthos of a Large River (Lower Mississippi River, USA)
… the main channel causes a shift from a lotic to lentic environment, and then a legacy effect, a macroinvertebrate void, when connectivity is restored. Finally, connectivity also affects the physiochemical dynamics of water and sediments within secondary channels, transforming disconnected …
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Factors Affecting Distribution and Abundance of Aquatic Macroinvertebrates in Autumnal Wetlands in Mammoth Cave National Park, Kentucky, USA
Despite a recent surge of interest in temporary lentic systems, a strong theory linking the biota to its environment has not emerged. Data were collected from ten autumnal wetlands at Mammoth Cave National Park, Kentucky, U.S.A., in an effort to elucidate the environmental variables (EV's) that …
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Environmental DNA is an Effective Method to Monitor Species in Various Freshwater Habitats
… successful detection of species across both lentic and lotic systems throughout the study area through efficient multiplexing (detection of multiple species in one reaction) via quantitative Polymerase Chain Reaction. Results from this study, overall, showed that eDNA methods can produce …
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Estrutura, desenvolvimento e alimentação do Brycon Devillei Castelnau, 1855 (Pisces-Characidae)
… its equal capacity of adaptation a lentic habitat.
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Assessing potential navigation impacts to the Kanawha river ecosystem: a modeling approach
… other fish, and 5% crayfish. At the lower, more lentic site the diet consisted of 34% detritus, 25% plant matter, 21% other fish, 17% invertebrates, and 3% crayfish. The overall basis of production relies upon imports of allochthonous materials.
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Distribution of larval fishes in the Winfield Pool, Kanawha River, and direct impacts of commercial navigation traffic on larval fish survival
… apparent for several taxa at the deeper and more lentic sampling site (lower pool). <i>Aplodinotus grunniens</i> were generally more abundant near the bottom, especially during daylight. Cyprinids were more abundant near the bottom in mid-June, but displayed no vertical trends on other sampling …
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Rainbow Trout (Salmo Gairdneri) Cage Culture and Primary Production In Eastern South Dakota Dugout Ponds
… need to be developed for trout reared in a lentic environment. The high cost of fingerlings was the limiting factor in a hypothetical dugout culture operation. Great water transparency seemed to be the major factor contributing to increased primary production, phytoplankton standing crop, …
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