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 90 for “"macrophytes"”.
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Uptake of kepone by aquatic macrophytes
Arrowarum [Peltandra virginica (L.) Schott and Endl.], waterhyacinth (Eichhornia crassipes (Mart.) Solms], American bulrush [Scirpus americanus (Pers.)], and smooth cordgrass [Spartina alterniflora (Loisel.)] removed Kepone® (dechachloro-octahydro-1,3,4-metheno-2H-cyclobuta[cd] pentelen-2-one) from …
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Acclimation of marine macrophytes (Saccharina latissima and Zostera marina) to water flow
… the physiological response of two marine macrophytes, the brown alga Saccharina latissima and the angiosperm Zostera marina, to water flow in nature and in controlled experiments. Limitation of photosynthesis of both species by the availability of dissolved inorganic carbon (DIC) was …
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The role of aquatic macrophytes in the availability of food for young fish
… Field caging experiments provided evidence that macrophytes may be beneficial to O+ perch growth but O+ roach grew as well without them. Improved growth rates of O+- perch in the presence of macrophytes were attributed to a greater availability of macro-invertebrates and a typical feeding …
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Ecological aspects of the macroinvertebrates associated with two submersed macrophytes in Lake Kariba
… Fenzl are the most common and abundant submerged macrophytes in shallow inshore waters of Sanyati Basin, Lake Kariba. Lagarosiphon is structurally more complex than Vallisneria. This study considered the macroinvertebrate assemblages associated with the two plant species with respect to (i) …
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Macroinvertebrates associated with macrophytes in Sodwana Bay : with further consideration of amphipod taxonomy
… selected to focus sampling. Macroinvertebrates, macrophytes and sediment were collected from forty-five 25 x 25 cm quadrats.
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Mechanisms involved in the decline of aquatic macrophytes; in particular of Stratiotes aloides L.
Contains fulltext : mmubn000001_210338857.pdf (Publisher’s version ) (Open Access)
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Investigating the effects of pre-treatment of tropical seaweeds and freshwater macrophytes for bioenergy production
… from selected tropical seaweed and freshwater macrophytes in Nigeria through two biochemical processes: as anaerobic digestion (biogas production) and fermentation (bioethanol production).<br/>The study was carried out in four main stages.<br/><br/>The first stage investigated the effect of …
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Lake Erie coastal marsh aquatic invertebrate community structure across habitats dominated by two different emergent macrophytes
<p>The objective of this observational study was to determine if there was a difference in aquatic invertebrate communities between areas dominated by<em> Phragmites australis</em> and areas dominated by <em>Typha spp</em>. in a freshwater coastal marsh. The hypothesis was that aquatic invertebrate …
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Etude et Modélisation de la contribution des macrophytes flottants (Lemna minor) dans le fonctionnement des lagunes naturellles
Le lagunage à macrophytes flottants, procédé rustique d'épuration, constitue l'une des alternatives adéquates du traitement des eaux usées dans les pays en développement en général, et en République Démocratique du Congo en particulier. Plusieurs organismes (par exemple, les bactéries, les …
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Relationships Among Aquatic Macroinvertebrates, Endangered Waterbirds, and Macrophytes in Taro Lo'I At Hanalei National Wildlife Refuge, Kauai, Hawaii
Hanalei National Wildlife Refuge (HNWR) on the island of Kauai provides yearround critical wetland habitat for five endangered waterbirds (EWBs) and supports nearly one-third of the remaining taro loi cultivated in the Hawaiian archipelago. This study focuses on the use patterns of this …
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Production and Initial Decomposition of Floating Leaves of Nymphaeid Macrophytes, or Rise and fall of Floating Nymphaeid Leaves
Contains fulltext : 305669.pdf (Publisher’s version ) (Open Access)
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Biomonitoring of herbicide impact using aquatic macrophytes : laboratory and field studies for the evaluation of potential toxicity on aquatic plants
Die Bewertung des Herbizideinflusses auf Wasserpflanzen erfolgt zur Zeit anhand von Ergebnissen aus Versuchen mit der monokotylen Lemna sp. und mit Algen. Eine alleinige Einschätzung der Herbizidtoxizität aufgrund solcher Testsysteme birgt gewisse Unsicherheiten, da für einige Herbizide, wie z.B. …
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Contribution méthodologique à l'évaluation de la qualité des eaux des revières à l'aide des macrophytes aquatiques(spermatophytes et bryophytes) - Application au réseau hydrographique luxembourgeois-
La répartition des Macrophytes aquatiques (Phanérogames et Bryophytes) a été étudiée sur l’ensemble des cours d’eau luxembourgeois. Des prospections macrophytiques ont été réalisées pour 340 stations entre 2000 et 2003. Dans chacune d’entre elles, des paramètres mésologiques ont été mesurés et des …
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Caracterización hidrodinámica de praderas naturales de macrófitos bentónicos en fondos someros afectados por mareas
… wind-storms and profusely inhabited by marine macrophytes (> 90% covering). These macrophytes are key to the functioning and productivity of this system and their interactions with hydrodynamics affects important ecological processes such as resources uptake and availability, bed stability and …
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Detached macrophyte accumulations in surf zones: Significance of macrophyte type and volume in supporting secondary production
Detached macrophytes (sea grass and macroalgae) are transported from more offshore areas and accumulate in large volumes in surf zones, where they are commonly called wrack. In coastal regions in other parts of the world, wrack transported from one habitat to a second habitat can be considered as a …
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Ecosystem impacts of the invasive rusty crayfish (Faxonius rusticus) over time
… native crayfishes and caused declines in fishes, macrophytes, and macroinvertebrates such as aquatic gastropods (snails). The red swamp crayfish (Procambarus clarkii) is another invasive crayfish that has caused declines of macrophytes, leading to decreases in water clarity in shallow lakes and …
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