Advanced search
Showing result 1 - 5 of 12 essays matching the above criteria.
-
1. Restoration effects on benthic macroinvertebrate diversity and community composition in a river
University essay from Uppsala universitet/Institutionen för biologisk grundutbildningAbstract : Physical restoration efforts are common methods to restore running waters containingdegraded ecosystems due to anthropogenic activities such as irrigation, ditching, dammingand flood prevention. The goal is usually to restore waters to a more natural state, creatingmore physically complex habitats supporting a larger number of species of both fish andinvertebrates, hence increasing biodiversity. READ MORE
-
2. As I live and breathe! : The effects of hypolimnic oxygenation on benthic macroinvertebrate and zooplankton assemblages
University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskapAbstract : Exacerbated deep-water hypoxia, brought about by anthropogenic-derived dissolved organic carbon (DOC) input, has potentially detrimental impacts on organisms residing in freshwater ecosystems. Oxygenation of the water column is a potential management strategy to mitigate this impact, and used to alleviate DOC induced oxygen depletion. READ MORE
-
3. Forest Ditches As Habitat For Aquatic Macroinvertebrate In Boreal Landscapes
University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskapAbstract : Large areas of northern Sweden have been ditched to promote forest growth by draining wet soils and peatlands. These ditches have greatly added to length of Sweden’s stream and river network, but the ecological properties of these man-made aquatic environments is poorly understood. READ MORE
-
4. Stream size determines densities of larger juvenile brown trout in mountain streams
University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskapAbstract : The productivity or availability of juvenile habitats have theoretically been shown to determine size distributions of adult individuals and population abundance. Brown trout (Salmo trutta) is a species where adults may inhabit lakes and use connected streams for spawning and as nursery habitats for juveniles. READ MORE
-
5. The effects of eutrophication and browning on prey availability and performance of the three-spined stickleback (Gasterosteus aculeatus)
University essay from SLU/Dept. Of Aquatic ResourcesAbstract : Shallow coastal areas often have high productivity and diversity, in part due to the high availability of light and nutrients. At the same time, they are exposed to multiple environmental pressures, such as browning and eutrophication. READ MORE