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 12 of 12 for “"larval recruitment"”.
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Characterization of Soundscapes in Shallow Water Habitats of the Florida Keys (USA) and Their Influence on the Settlement of Larval Fish and Invertebrates
… restoration on underwater soundscapes and larval recruitment. I had four main objectives: (1) characterize the underwater soundscapes of three near-shore, benthic habitats: mangrove islands, seagrass meadows, and hard-bottom (Chapter 2); (2) quantify larval settlement within healthy, …
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Population Genetic Structure of the Temperate Scleractinian Coral, Oculina Arbuscula, in Coastal Georgia
… However, recent studies report evidence of local larval recruitment. In this study, I hypothesized that populations of the temperate coral, Oculina arbuscula, are maintained primarily by local recruitment off the Georgia coast because: 1) suitable substrate for settlement is patchy and 2) O. …
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The Effects of Environmental Variability on the Population Structure of the Eastern Oyster (<i>Crassostrea virginica</i>): A Modeling Study
… The second model, a time-dependent larval growth model, simulates larval growth and mortality. Larval growth rate, which determines the length of the planktonic period, is defined by food concentration, temperature, salinity and turbidity. The larval model includes the effects of …
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Invasive species: fundamental and applied science
… experimental salinities, I combine FRs with larval recruitment estimates and show that attack and maximum feeding rates of the starfish are reduced by decreasing salinities, with no instances of predation found at the low salinity. With similar patterns for larval recruitment, the overall …
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Large-scale forcing of coastal communities
… by filter feeders with potentially greater larval recruitment, increased density, faster growth and larger maximum sizes.<br/>The study was divided into five sections examining community structure, growth rates, predation and grazing pressures, effects of wave exposure, and stable isotope …
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Comparisons of Fish Species Inside and Outside of Marine Protected Areas off the South Central Coast of California
… MPAs, and changes in fishing pressure and post-larval recruitment. </p> <p>Cabezon were largest within Big Creek, followed by Piedras Blancas and Cambria which held the smallest fish, suggesting that fishing pressure is influencing fish size. However, cabezon were more abundant at Cambria than …
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Recruitment And Restoration Of The Oyster Crassostrea Virginica In Areas With Intense Boating Activity In Mosquito Lagoon, Florida
… if these surfaces are unavailable for larvae. Recruitment trials were run on eight reefs (4 with dead margins, 4 without) in three 8-week trials in 2001/2002. Significant differences were found for location on reef and season. For survival of recruits, significant differences were found for …
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Can Waters Around Durney Key, Pasco County, Florida, Support Coral Recruitment to Artificial Substrates?
… investigate the potential for successful coral recruitment and growth in Durney Key waters; and c) to determine if porcelain is a suitable substrate for settlement of the larvae of coral species present in west central Florida. An array of Acoustic Doppler Current Profilers (ADCPs) were used to …
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Patterns of variation in the benthic macroinvertebrate community of the Upper Columbia River, WA
… onset of exogenous feeding, leading to chronic larval recruitment failure. To determine the potential suitability of the BMI community as a prey source in this crucial stage of development, I explored seasonal, annual and zonal differences in BMI density, biomass, diversity and community …
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The reproductive seasonality and flight capability of Sitona discoideus Gyllenhal (Coleoptera: Curculionidae) and its pattern of larval establishment in Canterbury lucerne
… April. The importance of the winter months for larval establishment of S. discoideus was determined in Canterbury. Chlorpyrifos applied at 0.6kg a.i. ha⁻¹ on lucerne field plots was found to effectively eliminate adult S. discoideus populations but left their eggs unaffected. A field experiment …
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Evaluating Recruitment Seasonality of Red Abalone (<i>Haliotis Rufescens</i>) to Inform Fisheries Management and Conservation Policy
<p>Recruitment, the addition of new individuals to a population, must be understood to make predictions about population growth of marine invertebrates. Red abalone (<em>Haliotis rufescens</em>) represent a former important commercial fishery in California, and until recently, supported a major …
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Identifying inundation-driven effects among intertidal Crassostrea virginica in a commercially important Gulf of Mexico estuary
… virginica to sea level rise, and the response of larval settlement to sedimentation which is likely to increase with higher water levels and storm frequency. Inundation was used as a proxy for sea level rise. We hypothesized four possible outcomes for intertidal oyster reefs as a result of changes …