Sökning: "shallow-water ecosystems"

Visar resultat 1 - 5 av 9 avhandlingar innehållade orden shallow-water ecosystems.

1. 1. Swedish seagrass ecosystems in a changing climate : Coastal connectivity and global change sensitivity

   Författare :Diana Perry; Martin Gullström; Jason Hall-Spencer; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; coastal seascape; shallow-water ecosystems; fish assemblages; connectivity; global change; climate change; multiple stressors; seagrass; Zostera marina; temperate region; Marine Ecology; marin ekologi;

   Sammanfattning : Coastal shallow-water ecosystems are essential for providing several goods and services globally, with seagrasses as an important contributor for maintaining high biodiversity and productivity within the nearshore seascape. The temperate species Zostera marina serves as a vital habitat for many species, including ecologically and economically important juvenile fish. LÄS MER

3. 2. Patterns of small-scale coastal fisheries and local fisheries management in Tanzania : adaptation to a changing climate

   Författare :Mathew Ogalo Silas; Martin Gullström; Hans W. Linderholm; Mattias Sköld; Patrick Polte; Christina Hicks; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Small-scale fisheries; tropical coastal seascape; nearshore-offshore linkages; coastal ecosystems; fish catch landings; communities; adaptation; climate change; fishing overfishing; Marine Ecotoxicology; marin ekotoxikologi;

   Sammanfattning : Coastal habitats like mangroves, seagrass meadows, coral reefs, and adjacent offshore waters constitute an important part of the tropical coastal seascape. They provide conducive environmental conditions for fish and other marine animals, which serve as food and income for coastal communities around the world. LÄS MER

4. 3. Sediment resuspension : Impacts and extent of human disturbances

   Författare :Ingrid Tjensvoll; Clare Bradshaw; Torgeir Heggelund Bakke; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; marin ekotoxikologi; Marine Ecotoxicology;

   Sammanfattning : Resuspension of sediment by anthropogenic disturbances is a concern due to the impacts it has on organisms and ecosystems. Bottom trawling is one major cause of sediment resuspension. A field study showed that a small trawl created a sediment plume 120 - 150 m wide and 15-18 m high (Paper 1). The sediment in the same study was highly contaminated. LÄS MER

5. 4. Paleoenvironmental and paleoclimatic changes in northeast Thailand during the Holocene

   Författare :Sakonvan Chawchai; Barbara Wohlfarth; Richard Bindler; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Paleoenvironment; paleoclimatic; sediment; peat; multi-proxy; Asian monsoon; the Holocene; Marine Geology; maringeologi;

   Sammanfattning : The long-term climatic and environmental history of Southeast Asia is still fragmentary. This thesis therefore aims at studying lake sediment/peat sequences using a multi-proxy approach to reconstruct the environmental history and the impact of past changes in monsoon variability and intensity on lake ecosystems in Thailand. LÄS MER

7. 5. Early Life History of the cold-water coral Lophelia pertusa - with implications for dispersal

   Författare :Susanna Strömberg; Göteborgs universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; larval development; life history traits; dispersal potential; morphology;

   Sammanfattning : For sessile marine invertebrates the pelagic larval stage is the only means for dispersal, and thus govern population connectivity and maintenance of genetic diversity. It is also a kind of life insurance, i.e. it reduces the risk of extinctions. LÄS MER