Sökning: "geological substrate"

Hittade 2 uppsatser innehållade orden geological substrate.

1. 1. Methanobacterium cauma sp. nov., a hydrogenotrophic, halotolerant methanogen from an active serpintinization system at Chimaera seep

   Master-uppsats, Uppsala universitet/Institutionen för biologisk grundutbildning

   Författare :Aubree Stephens; [2023]
   Nyckelord :methanogen; archaea; hydrogenotroph; halotolerant; Methanobacterium; Chimaera seep; methanogenesis;

   Sammanfattning : The archaeal branch of life represents some of the oldest life forms on Earth. Archaea are believed to have diverged from Prokaryotes roughly 3.5 billion years ago and it’s theorized that biological methane production started around this time as well. This would make methanogenesis one of the oldest metabolisms on our planet. LÄS MER

3. 2. How does hydropeaking and geological substrate affect aquatic macroinvertebrates in a regulated river?

   Master-uppsats, Karlstads universitet/Institutionen för miljö- och livsvetenskaper (from 2013)

   Författare :Andreas Vernby; [2021]
   Nyckelord :Hydropeaking; geological substrate; aquatic macroinvertebrates; EPT species; Hester-Dendy samplers; Korttidsreglering; geologiskt substrat; akvatiska makroevertebrater; EPT; Hester-Dendy-provtagare;

   Sammanfattning : Hydropower is an important source of renewable energy, but is often a cause of degradation to river ecosystems. Hydropeaking, i.e. the frequent alteration of discharge, is a process involved in hydropower generation and has been proven to affect aquatic organisms negatively. LÄS MER