Sökning: "Macroinvertebrates"
Visar resultat 11 - 15 av 24 uppsatser innehållade ordet Macroinvertebrates.
11. Seasonal community dynamics of macroinvertebrates in an Arctic stream
Kandidat-uppsats,Sammanfattning : Arctic ecosystems are amongst the most vulnerable on Earth to ongoing climate change. While the responses to these changes are well studied on land, less is known about how aquatic communities may respond to a warmer arctic. LÄS MER
12. Effects of a fish farm on downstream macroinvertebrates
Kandidat-uppsats, Umeå universitet/Institutionen för ekologi, miljö och geovetenskapSammanfattning : The number of fish farms is increasing worldwide tomeet the global demand for fish used as a food source for humans. The WorldBank predicts that by 2030, 62 percent of all consumed fish globally will beproduced in fish farms. Due to this increasing demand for fish, fish farming isa growing business and the numbers of fish farms are increasing. LÄS MER
13. Hasslebäcken En studie av vattenkvalitet,vandringshinder och potentiellareproduktionsbiotoper för öring
Kandidat-uppsats, Högskolan i Halmstad/Akademin för ekonomi, teknik och naturvetenskapSammanfattning : This paper is about analyzing water quality of a stream that flows in southwest of Swedencalled Hasslebäcken. The stream is a tributary of Suseån and has its springs in the naturereserve Biskopstorp and flows through a mixed landscape of mostly spruce forests andagriculture land. LÄS MER
14. Evertebraters kolonisation på fin ved i semi-naturliga bäckar
Kandidat-uppsats, Karlstads universitet/Institutionen för miljö- och livsvetenskaperSammanfattning : Wood can be added to streams to create microhabitats that provide macroinvertebrates with an opportunity for re-colonization by making the stream more heterogeneous. I examined colonization on wood substrate by macroinvertebrates in semi-natural streams in northern Finland during a three month period. LÄS MER
15. Decomposition of leaf litter in headwater streams. : Effects of changes in the environment and contribution of microbial and shredder activity on litter decomposition.
Master-uppsats, Umeå universitet/Institutionen för ekologi, miljö och geovetenskapSammanfattning : Headwaters, which are the most common stream order in the landscape, are mostly dependent on energy produced in the terrestrial system, largely consisting of leaf litter from riparian vegetation. The aim of this study was to investigate the decomposition in headwaters of leaf litter from three native (alder, birch, spruce) and one non-native (lodgepole pine) species and how decomposition responds to changes in the environment. LÄS MER