Essays about: "aquatic knowledge"
Showing result 1 - 5 of 69 essays containing the words aquatic knowledge.
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1. Sensitivity of Norway Spruce (Picea abies) to inundation.
University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskapAbstract : Alteration of river flow regimes due to dams result in modifications of riparian ecosystem, with impacts on vegetation, landforms, and habitats. A key characteristic that differentiates riparian zones from adjacent aquatic and terrestrial environments is the event of periodic flooding and water logging. READ MORE
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2. The effects of fishing on stability of a food web under climate warming
University essay from SLU/Dept. Of Aquatic ResourcesAbstract : Predicting the effects of fishing in a warmer environment caused by climate change requires knowledge of what trophic level is fished on, the physiological effects of temperature on fish, and how these two affect ecological interactions. Both temperature and fishing are known to affect the stability of food webs in several ways. READ MORE
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3. Ecological impacts of dam removal in Swedish inland waters : Effects on water chemistry and fish demography
University essay from Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)Abstract : Dams play an important role in our society, but their negative impacts on aquatic ecosystems have led to a need for conservation efforts to mitigate the negative effects. In some instances, dam removal has been suggested to be the most economically and ecologically beneficial restoration method to improve longitudinal connectivity. READ MORE
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4. Change in uptake and transfer of zinc in the food chain when predatory fish disappear from the system
University essay from Uppsala universitet/Institutionen för geovetenskaperAbstract : There is a widespread distribution of possibly toxic heavy metals, such as zinc, in aquatic ecosystems. Simultaneously aquatic food webs are changing due to declining predatory fish stocks. READ MORE
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5. Effects of Forest Ditch Cleaning on Surface Water Quality
University essay from SLU/Dept. of Aquatic Sciences and AssessmentAbstract : Ditch cleaning (DC) is recommended by authorities to Swedish landowners to maintain forest productivity after forest harvest by lowering groundwater tables of catchment soils. Knowledge regarding the impact of this practice on surface water quality is limited, and results from previous research vary. READ MORE