Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 5 of 5 for “"Sjávar- og vatnalíffræði"”.
-
Asynchrony in the dynamics of chironomids across six locations in northeastern Iceland
… locations can provide insights into the ecological processes shaping changes in the abundances of species. Here, I examine 18-year time series of abundances of non-biting midges (Diptera: Chironomidae) from window trap samples at five lakes in northeastern Iceland: Miklavatn, Sílalækjarvatn, …
-
Crustacea Zooplankton Communities in Icelandic Lakes Comparison Over Time
… using data from two national surveys: the Ecological Survey of Icelandic Lakes (1992–1998) and the Natura Project (2012–2013). Multivariate statistical analyses were applied to assess temporal changes in diversity and composition and to evaluate the influence of environmental variables, …
-
Biological diversity of epibenthic invertebrates in relation to environmental factors in lava caves around Lake Mývatn (N-E Iceland)
… and diverse invertebrates. The unique geomorphology of the caves creates various habitats, and along with that the potential for different invertebrate communities. In summer 2014, I sampled epibenthic crustaceans in 18 caves distributed in two areas around Lake Mývatn, Haganes and Vindbelgjar, …
-
Relationships between phenotype, diet, and individual specialization of threespine stickleback (Gasterosteus aculeatus) in Lake Mývatn, Iceland
… in Lake Mývatn in June and their head morphology, gill raker structure, gut length, and stomach content analyzed, and individual specialization calculated. The results showed that there was no correlation between head morphology or all traits combined with diet or individual specialization …
-
Effects of environmental enrichment on personality traits in juvenile Arctic charr (Salvelinus alpinus) : interplay with brain morphology, growth performance and implication for welfare
… diverse disciplines ranging from behavioural ecology to fish welfare. In aquaculture, animals are often raised in plain housing conditions and such environments could severely restrict the natural behavioural repertoire of animals, and hence may compromise their welfare. Therefore, enriched …