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 13 of 13 for “"eelgrass"”.
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Survival strategies of eelgrass in reduced light
… most widespread cause of worldwide decline of eelgrass, an ecologically important marine angiosperm whose role in supporting overall coastal ecosystem productivity has been widely recognized. Understanding eelgrass plant and meadow responses to light reduction has therefore received significant …
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Testing the Limits of Hyperspectral Airborne Remote Sensing by Mapping Eelgrass in Elkhorn Slough
… investigates analytical methods for mapping eelgrass beds in an optically complex shallow, turbid estuary. Hyperspectral imagery (HSI) of Elkhorn Slough, CA was collected by the Spectroscopic Aerial Mapper with Onboard Navigation (SAMSON) instrument. <em>In-situ</em> data of water column and …
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Experimental studies of interactions between Zostera marina and the associated benthic fauna
… in abundance of the benthic infauna within an eelgrass bed; (2) Observe what immediate effects occur to the benthic community as a result of experimental removal of eelgrass plants from plants within the Zostera bed; (3) Measure the seasonal variation of eelgrass turion length over an annual …
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Physiological and Molecular Responses of Eurythermal and Stenothermal Populations of <i>Zostera Marina</i> L (Eelgrass) to Climate Change
… species such as <em>Zostera marina</em> L. (eelgrass) remains largely unknown. This study analyzed whole-plant performance metabolic profiles and gene expression patterns of distinct eelgrass populations in response to CO<sub>2</sub> enrichment. Populations were transplanted from Nisqually …
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Evaluating eelgrass (Zostera marina) as a juvenile habitat for rockfishes : contributions of site characteristics and larval supply to juvenile abundance
… biotic and abiotic habitat characteristics. The eelgrass beds that I studied were found to differ significantly in their habitat characteristics, the abundance of settlers arriving to them, as well as the abundance of juvenile recruits in the beds. Sebastes melanops and S. caurinus were found at …
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The effects of the macroalga Gracilaria gracilis and increasing temperatures on the performance of the endemic Cape eelgrass Zostera capensis
Rising temperature caused by global warming alters physiology, phenology and/or distribution in a wide array of plant and animal species, which has dramatic knock-on effects at different levels of organisation. This study investigates the individual and interactive effects of temperature (18ᵒC, …
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Potential Impacts of Climate Change on Photochemistry of <i>Zostera Marina</i> L.
… on photosynthesis and survival of the temperate eelgrass <em>Zostera marina L</em>., but the acclimation of photoprotective mechanisms in this context has not been characterized. This study aimed to quantify the long-term impacts of ocean acidification on photochemical control mechanisms that …
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The ecological effects of bioturbation on the eelgras Zostera capensis : community interactions and the impacts on the biota of an intertidal sandflat
… of bioturbation by Callianassa kraussi on the eelgrass Zostera capensis, and its indirect effects on the sedentary mudprawn Upogebia africana and the biota of an intertidal sandflat were assessed at Langebaan Lagoon, South Africa, through comparative surveys, observations and field experiments. …
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Intertidal Habitat Utilization by Endangered Green Sturgeon (Acipenser medirostris), Willapa Bay, Washington
… declined when surveying areas with thick eelgrass beds and increased in bare areas. No feeding pit activity was observed within aquaculture parcels adjacent to feeding sites. The majority of feeding pits were found between +0.25 m and +1.5 m MLLW, in terms of tidal elevation.</p>
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Population and habitat ecology of the river cooter (Pseudemys concinna) in the New River Gorge National River, W.V.
… than males. Adult cooters consumed mostly eelgrass (Vallisneria americanaElodea canadensis), although some crayfish remains were found in fecal samples. Juveniles consumed vegetation as well as invertebrates and fish. Cooters did not move out of the pool habitats in which they were marked. …
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Studies of the horizontal and vertical distributional patterns of diatoms epiphytic on eel grass, Zostera marina L.
… summer periodicity of diatoms epiphytic on eelgrass, Zostera marina L., in the vicinity of Gloucester Point, Virginia. Samples were collected in August 1963 and June and July 1964. Horizontal and vertical distributional patterns were demonstrated with respect to the change of total numbers …
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Trigger Point Theory as Aesthetic Activism
… analyze relationships between finfish abundance, eelgrass, and invasive, predatory green crabs. Conclusions were drawn that are relevant to coastal and fisheries management practices. The author used performative approaches to contribute expert witnessing to her conclusions. Questionnaires were …
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Habitat utilisation by juvenile fishes in Mhlathuze Estuary and Richards Bay Habour
… the influences of physico-chemical variables. Eelgrass, Zostera capensis, is an important nursery for many fishes not found in other habitats. Presently in KwaZulu-Natal Zostera only occurs in Mhlathuze Estuary and St Lucia. Fish diversity in several other systems where it historically occurred …