Blar i Department of Biological Sciences på tittel
Viser treff 1854-1873 av 2204
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Seasonal dynamics of bacterial biofilms on the kelp Laminaria hyperborea
(Peer reviewed; Journal article, 2010-05)Seasonal variations of the cell density and bacterial community composition in biofilms growing on the surface of the kelp Laminaria hyperborea from 2 sites on the southwestern coast of Norway were investigated using total ... -
Seasonal dynamics of haptophytes and dsDNA algal viruses suggest complex virus-host relationship
(Peer reviewed; Journal article, 2017-04-20)Viruses influence the ecology and diversity of phytoplankton in the ocean. Most studies of phytoplankton host–virus interactions have focused on bloom-forming species like Emiliania huxleyi or Phaeocystis spp. The role of ... -
Seasonal dynamics of the vertical migration behaviour of mesopelagic fish
(Doctoral thesis, 2010-11-26)This thesis focuses on the behavioural dynamics of mesopelagic fish in a fjordic environment. Acoustic data recorded with a stationary echosounder was used to primarily investigate the diel vertical migration behaviour of ... -
Seasonal pollutant levels in littoral high-Arctic amphipods in relation to food sources and terrestrial run-off
(Journal article; Peer reviewed, 2022)Increasing terrestrial run-off from melting glaciers and thawing permafrost to Arctic coastal areas is expected to facilitate re-mobilization of stored legacy persistent organic pollutants (POPs) and mercury (Hg), potentially ... -
Seasonal Variability in Near-bed Environmental Conditions in the Vazella pourtalesii Glass Sponge Grounds of the Scotian Shelf
(Journal article; Peer reviewed, 2021)The Scotian Shelf harbors unique aggregations of the glass sponge Vazella pourtalesii that provides an important habitat for benthic and pelagic fauna. Recent studies have shown that these sponge grounds have persisted in ... -
Seasonal variations in C:N:Si:Ca:P:Mg:S:K:Fe relationships of seston from Norwegian coastal water: Impact of extreme offshore forcing during winter-spring 2010
(Peer reviewed; Journal article, 2017-11)The aim of this study was to reveal the relative content of C, N, Ca, Si, P, Mg, K, S and Fe in seston particles in Norwegian coastal water (NCW), and how it relates to biological and hydrographic processes during seasonal ... -
Seasonality of the Physical and Biogeochemical Hydrography in the Inflow to the Arctic Ocean Through Fram Strait
(Peer reviewed; Journal article, 2018-06-29)Eastern Fram Strait and the shelf slope region north of Svalbard is dominated by the advection of warm, salty and nutrient-rich Atlantic Water (AW). This oceanic heat contributes to keeping the area relatively free of ice. ... -
The seasonally dry tropical forest species Cavanillesia chicamochae has a middle Quaternary origin
(Journal article; Peer reviewed, 2021)We use DNA sequence data to understand the evolutionary history of the genus Cavanillesia (Malvaceae), with particular emphasis on C. chicamochae, an emblematic succulent-trunked tree endemic to seasonally dry tropical ... -
Secchi disk measurements in turbid water
(Journal article; Peer reviewed, 2020)In the classical theory of the Secchi disk depth, diffuse sunlight falling on the disk is reflected back to the observer's eye along the most direct route, as a beam. The disappearance depth, ZSD, of the disk is then ... -
Secretory vesicle protein homologues in choanoflagellates
(Doctoral thesis, 2023-12-15)Regulert vesikeleksocytose, som i tilfellet med høyt spesialisert synaptisk vesikelsekresjon, styres av et sett evolusjonært konserverte proteiner. Mange av disse proteinene er eldre enn dyrene. Målet med denne avhandlingen ... -
Sedation and slaughter of Atlantic salmon (Salmo salar, L.) with carbon monoxide, and a possible regulatory role of neuroglobin
(Doctoral thesis, 2012-10-05)Until recently CO2 has been utilized as an anesthetic method before gill cutting of Norwegian Atlantic salmon farmed fish. From 1. July 2012 this is no longer permitted in Norway since it causes strong aversive reactions ... -
Seed banks are biodiversity reservoirs: species–area relationships above versus below ground
(Peer reviewed; Journal article, 2015-05-26)Soil seed banks offer plants the possibility to disperse through time. This has implications for population and community dynamics, as recognised by ecological and evolutionary theory. In contrast, the conservation and ... -
Seedbank, Seedrain and Seedling Recruitment along Climate Gradients in Southern Norway
(Master thesis, 2010-06-01)Recruitment through seeds is a critical process in the life history of plants. Better knowledge about this process may be helpful in predicting species ranges and range shifts under climate change. In western Norway, the ... -
Seeing the wood for the trees: Carbon storage and conservation in temperate forests of the Himalayas
(Journal article; Peer reviewed, 2021)Forests have a prominent role to play in the success of the UN’s Agenda 2030, thus actions to halt deforestation are high on the international sustainability agenda. As humans are altering the composition and extent of ... -
The selenium content of SEPP1 versus selenium requirements in vertebrates
(Peer reviewed; Journal article, 2015-09-10)Selenoprotein P (SEPP1) distributes selenium (Se) throughout the body via the circulatory system. For vertebrates, the Se content of SEPP1 varies from 7 to 18 Se atoms depending on the species, but the reason for this ... -
Semaphorin Signalling in Neuronal and Vascular Development in the Tooth
(Doctoral thesis, 2016-06-07)Background: The tooth is a well-established model in which to study molecular signaling that regulates organ morphogenesis. Previously, organ-specific innervation of the tooth and its molecular regulation has, to some ... -
A sensetive zonagenetic assay for rapid in vivo assessment of estrogenic potency of xenobiotics and mycotoxins
(Peer reviewed; Journal article, 1999-01)Mounting evidence confirms that hepatic biosynthetic processes are essential for female sexual maturation in fish, which is directly controlled by estrogens. These oogenetic events (zonagenesis and vitellogenesis) are ... -
Sensitivity of euphotic zone properties to CDOM variations in marine ecosystem models
(Peer reviewed; Journal article, 2013-05-10)In marine ecosystem models, the underwater light intensity is commonly characterized by the shading of phytoplankton in addition to a background light attenuation coefficient. Colour dissolved organic matter (CDOM) is an ... -
Sensitivity of global terrestrial ecosystems to climate variability
(Peer reviewed; Journal article, 2016-03)The identification of properties that contribute to the persistence and resilience of ecosystems despite climate change constitutes a research priority of global relevance1. Here we present a novel, empirical approach to ... -
Separating blue whiting (Micromesistius poutassou Risso, 1826) from myctophid targets using multi-frequency methods
(Master thesis, 2008)Blue whiting (Micromesistius poutassou Risso, 1826) is a physoclists species, widely distributed in the Barents Sea, Norwegian Sea and Mediterranean Sea. They appear on the continental slope and shelf, in high concentration ...