Search for dissertations about: "Pelagic"
Showing result 1 - 5 of 113 swedish dissertations containing the word Pelagic.
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1. Distribution and activity of pelagic fish - acoustic studies in the Baltic Sea
Abstract : Fisheries agencies around the Baltic Sea use hydroacoustics to assess stock sizes of herring and sprat. These assessments rely on the assumption that the acoustic properties of Baltic clupeids are the same as North Sea herring. READ MORE
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2. Effects of warming and browning on benthic and pelagic ecosystem components in shallow lakes
Abstract : The majority of lakes on Earth are shallow, unproductive and located at high latitudes. These lakes are experiencing big changes due to climate change, where two environmental drivers operate simultaneously, browning and warming. How they affect lake ecosystems is not well understood. READ MORE
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3. Benthic-pelagic coupling in a changing world : Structural and functional responses of microbenthic communities to organic matter settling
Abstract : Marine soft sediments form the second largest habitat on the planet. Organisms residing in this environment represent a vast reservoir of biodiversity, and play key roles in ecosystem processes. READ MORE
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4. Food web structures and carbon transfer efficiencies in a brackish water ecosystem
Abstract : Two differently structured food webs can be distinguished in the pelagic habitat of aquatic systems; the classical one (autotrophic) with phytoplankton as a base and the microbial food web (heterotrophic) with bacteria as a base. Energy (produced at the basal trophic level) reaches higher trophic levels, i.e. READ MORE
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5. Carbon metabolism in clear-water and brown-water lakes
Abstract : The trophic state of lakes is commonly defined by the concentration of nutrients in the water column. High nutrient concentrations generate high phytoplankton production, and lakes with low nutrient concentrations are considered low-productive. READ MORE