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 11 of 11 for “"Diel vertical migration (DVM)"”.
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Behavioral Response to UVB Differs in Subalpine Populations of Daphnia Melanica
… looked at two behaviors in <em>D. melanica</em>: diel vertical migration (DVM), which involves movement down the water column, and diel horizontal migration (DHM), which involves horizontal movement to shaded areas. I tested whether Daphnia from six populations varying in transparency differ in …
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Daphnia Diel Vertical Migration and Chemical Cues from Fish Predators
… and marine environments show a daily pattern of vertical migration. Daphnia undergo daily movements, migrating deeper during the day and rising toward the surface at night. To confirm this movement, field surveys were conducted in Bull Shoals Lake (Missouri–Arkansas) during the summer of 2007. …
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Winter vertical migration of Arctic zooplankton
In recent years, evidence has been found of Diel Vertical Migration (DVM) in zooplankton during the Polar Night in the Arctic Ocean. However, the drivers of this behaviour during an apparent lack of illumination and food are poorly understood, as is its spatial extent across the Arctic Ocean. A …
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Diel vertical migration and frontal variability of acoustic backscatter in the Balearic Sea
… the abundance of zooplankton and characterize diel vertical migration (DVM). DVM is the mass vertical movement of zooplankton and fish between the surface waters where they feed at night, and the mesopelagic zone where they avoid predators during the day; it is considered the largest migration …
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The Role of Zooplankton in Regulating Carbon Export and Phytoplankton Community Structure: Integrating Models and Observations
… I investigate the contribution of zooplankton diel vertical migration (DVM) to the vertical flux of carbon as part of the biological pump. I do this by constructing and analyzing a global model that includes DVM and is driven by satellite-based estimates of primary productivity. There has long …
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Diel vertical migration and frontal variability of acoustic backscatter in the Balearic Sea
… the abundance of zooplankton and characterize diel vertical migration (DVM). DVM is the mass vertical movement of zooplankton and fish between the surface waters where they feed at night, and the mesopelagic zone where they avoid predators during the day; it is considered the largest migration …
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Exploring circadian rhythms, food intake, and their interactions in marine invertebrates
… a high-throughput behavioral system to study diel vertical migration (DVM) in the copepod Acartia tonsa. DVM is driven by tradeoffs related to food availability, but we do not fully understand how food availability affects this circadian process. Using high-resolution tracking software, I find …
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The effects of diel vertical migration of Daphnia on zooplankton-phytoplankton interactions
Zooplankton populations which perform diel vertical migration (DVM) only spend the night in surface water layers but migrate downwards into the lower water layers during the day. The intention of this study was to investigate effects of DVM of Daphnia on phytoplankton dynamics and Daphnia life …
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Exploring circadian rhythms, food intake, and their interactions in marine invertebrates
… a high-throughput behavioral system to study diel vertical migration (DVM) in the copepod Acartia tonsa. DVM is driven by tradeoffs related to food availability, but we do not fully understand how food availability affects this circadian process. Using high-resolution tracking software, I find …
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Broadband acoustic characterization of the deep scattering layer
… and mesopelagic fish, many of which undertake diel vertical migration (DVM). Despite their recognized ecological and biogeochemical significance, quantitative understanding of DSLs remains limited due to their vast spatial extent, deep habitat, complex biological composition, and dynamic …
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A potential mechanism sustaining the biological hotspot around Palmer Deep Canyon
… whether this subsurface feature could retain vertically migrating zooplankton, diel vertical migration (DVM) was added to particle simulations in ROMS to simulate zooplankton, using sun angle to modulate the frequency of the behavior. The addition of DVM increased simulated zooplankton …