Essays about: "benthic algae"

Showing result 6 - 10 of 17 essays containing the words benthic algae.

  1. 6. Effects of diet quality and quantity on resource use, growth and fatty-acid composition of a benthic generalist consumer.

    University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Author : Adrian Grieve; [2017]
    Keywords : Food quality; allochthonous; autochthonous; consumer diet; somatic growth; fatty acids; stable isotopes.;

    Abstract : Variation in quality and quantity of food resources can affect consumer productivity responses throughout the food chain, particularly the efficiency at which basal resources are converted to consumer biomass. I performed a manipulative feeding experiment to investigate the somatic growth and fatty acid incorporation in the benthic generalist isopod Asellus aquaticus, in response to differing ratios of autochthonous (high quality algae) to allochthonous (low quality leaf litter) foods. READ MORE

  3. 7. Malformation in different species of benthic diatoms in three herbicide polluted streams in southern Sweden

    University essay from Högskolan i Halmstad/Akademin för ekonomi, teknik och naturvetenskap

    Author : Helena Spångfors; [2017]
    Keywords : diatoms; primary producers; unicellular algae; diatom index; malformation; deformation; herbicides; pesticides; kiselalger; primärproducenter; encelliga alger; kiselalgsindex; missbildning; missbildade; växtskyddsmedel; bekämpningsmedel; primärproducenter; encelliga alger; Höje å; M42; Skivarpsån;

    Abstract : Målet med den här studien var att undersöka kiselalger och dess eventuella missbildningar i tre vattendrag i södra Sverige - Höje å, Skivarpsån och M42. Kiselalger används som bioindikator för vattenkvalitet i hela Europa, men de befintliga kiselalgsindexen visar inte eventuell förekomst av miljöfarliga ämnen. READ MORE

  4. 8. The Effect of Exposure to Microplastic Particles on Baltic Sea Blue Mussel (Mytilus edulis) Filtration Rate

    University essay from Lunds universitet/Examensarbeten i biologi

    Author : Mathias Jönsson; [2016]
    Keywords : Biology and Life Sciences;

    Abstract : This study sought to investigate the effect of microplastics on Mytilus edulis’s ability to filtrate water. The mussels were sampled at Hanö bay located in the Baltic Sea, and were transported to a controlled environment. READ MORE

  5. 9. Benthic mapping of the Bluefields Bay fish sanctuary, Jamaica

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Karen Mcintyre; [2015]
    Keywords : remote sensing; image classification; GIS; acoustic survey; benthic habitat mapping; Earth and Environmental Sciences;

    Abstract : Small island states, such as those in the Caribbean, are dependent on the nearshore marine ecosystem complex and its resources; the goods and services provided by seagrass and coral reef for example, are particularly indispensable to the tourism and fishing industries. In recognition of their valuable contributions and in an effort to promote sustainable use of marine resources, some nearshore areas have been designated as fish sanctuaries, as well as marine parks and protected areas. READ MORE

  6. 10. Light, temperature and competition : understanding the causes for climate-driven regime shifts in arctic marine benthos

    University essay from Uppsala universitet/Luft-, vatten- och landskapslära

    Author : Kim Scherrer; [2015]
    Keywords : macroalgae; light; invertebrate; coralline algae; Arctic; benthic; regime shift; climate change; marin ekologi; tång; kalkalg; Arktis; regimskifte; klimatförändring; ljus;

    Abstract : In the Arctic, shallow sea-floor communities have been documented to shift abruptly from an invertebrate-dominated state to a state with high macroalgal abundance. Climate warming, resulting in increased water temperatures and decreased sea ice cover, could trigger such regime shifts in benthic ecosystems, but the underlying mechanisms are not clear. READ MORE