Browsing Department of Biological Sciences by Title
Now showing items 247-266 of 2346
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Carnivorous sponges of the Atlantic and Arctic Oceans. Phylogeny, taxonomy, distribution and microbial associations of the Cladorhizidae (Demospongiae, Poecilosclerida)
(Doctoral thesis, 2016-11-29)The sponges (phylum Porifera) are defined by the presence of an aquiferous system in which choanoflagellate cells create a current and filter water flowing through the sponge body. The carnivorous sponges represent the ... -
A case study of biofilter activation and microbial nitrification in a marine recirculation aquaculture system for rearing Atlantic salmon (Salmo salar L.)
(Peer reviewed; Journal article, 2020-09)Marine recirculation aquaculture system (RAS) is a prominent technology within fish farming. However, the nitrifying bacteria in the biofilter have low growth rates, which can make the biofilter activation a long and ... -
Catastrophic dynamics limit Atlantic cod recovery
(Peer reviewed; Journal article, 2019-03-13)Collapses and regime changes are pervasive in complex systems (such as marine ecosystems) governed by multiple stressors. The demise of Atlantic cod (Gadus morhua) stocks constitutes a text book example of the consequences ... -
Catch me if you can: How to recapture lumpfish using light as an attractant
(Journal article; Peer reviewed, 2020)The use of lumpfish in salmon farming allows the removal of sea lice all year round, without the use of chemicals or mechanical treatments. In Norway alone, around 31 million lumpfish are currently put into sea pens whereas ... -
Catch-and-release of Atlantic cod (Gadus morhua) in recreational fisheries
(Doctoral thesis, 2015-06-26)The role of recreational fisheries in the exploitation pressure on fish resources is increasingly recognized. This has led to the introduction of new harvest regulations for several European marine recreational fisheries. ... -
Catch-and-release of Atlantic cod (Gadus morhua): post-release behaviour of acoustically pretagged fish in a natural marine environment
(Peer reviewed; Journal article, 2014-10-07)Studying the sublethal effects of catch-and-release (C&R) is challenging, as there are several potential sources of bias. For example, if behavioural alterations immediately after the release event are to be studied, ... -
Cation‐π Interactions between Methylated Ammonium Groups and Tryptophan in the CHARMM36 Additive Force Field
(Peer reviewed; Journal article, 2019)Cation-π interactions between tryptophan and choline or trimethylated lysines are vital for many biological processes. The performance of the additive CHARMM36 force field against target quantum mechanical data is shown ... -
Caught in broad daylight: Topographic constraints of zooplankton depth distributions
(Peer reviewed; Journal article, 2019-05)For visual predators, sufficient light is critical for prey detection and capture. Because light decays exponentially with depth in aquatic systems, vertical movement has become a widespread strategy among zooplankton for ... -
Caught in the act: phenotypic consequences of a recent shift in feeding strategy of the shark barnacle Anelasma squalicola (Lovén, 1844)
(Peer reviewed; Journal article, 2016-03)Anelasma squalicola is a barnacle found attached to deep-water lantern sharks of the family Etmopteridae and is the only known cirriped on fish hosts. While A. squalicola is equipped with mouth and thoracic appendages ... -
Causes of Mortality and Loss of Lumpfish Cyclopterus lumpus
(Journal article; Peer reviewed, 2022)Data from research and commercial use of lumpfish were collected from the research facilities of Gifas (Inndyr, Northern Norway, 67.0° N, 14.0° E). The data were sourced from 12 main lumpfish groups subdivided into 66 ... -
Cell cycle regulation of Oikopleura dioica. A study of the cyclin CDK-complement
(Doctoral thesis, 2014-11-14)Regulation of the eukaryotic cell cycle is a fundamental biological process which controls proliferation of all eukaryote cells. Progression through the cell cycle is highly dependent on its core regulators; Cyclins and ... -
Cell size of Antarctic phytoplankton as a biogeochemical condition
(Peer reviewed; Journal article, 2009)Two contrasting high nutrient/low chlorophyll regions having different conditions that control phytoplankton production, and separated by an area of blooming, are found during summer in the vicinity of the South Shetland ... -
Centennial changes in water clarity of the Baltic Sea and the North Sea
(Peer reviewed; Journal article, 2013-10-10)Secchi depth is a valuable proxy for detecting long term changes in the water clarity of oceanic and coastal ecosystems. We analyse approximately 40 000 observations, which are available from ICES, from the Baltic Sea and ... -
Centennial decline in North Sea water clarity causes strong delay in phytoplankton bloom timing
(Peer reviewed; Journal article, 2019-08-23)With climate warming, a widespread expectation is that events in spring, such as flowering, bird migrations, and insect bursts, will occur earlier because of increasing temperature. At high latitudes, increased ocean ... -
Centennial relationships between ocean temperature and Atlantic puffin production reveal shifting decennial trends
(Journal article; Peer reviewed, 2021)The current warming of the oceans has been shown to have detrimental effects for a number of species. An understanding of the underlying mechanisms may be hampered by the non-linearity and non-stationarity of the relationships ... -
A century of fish growth in relation to climate change, population dynamics and exploitation
(Journal article; Peer reviewed, 2020)Marine ecosystems, particularly in high‐latitude regions such as the Arctic, have been significantly affected by human activities and contributions to climate change. Evaluating how fish populations responded to past changes ... -
Century-long cod otolith biochronology reveals individual growth plasticity in response to temperature
(Journal article; Peer reviewed, 2020)Otolith biochronologies combine growth records from individual fish to produce long-term growth sequences, which can help to disentangle individual from population-level responses to environmental variability. This study ... -
Cerebral gene expression and neurobehavioural development after perinatal exposure to an environmentally relevant polybrominated diphenylether (BDE47)
(Peer reviewed; Journal article, 2011-06-02)Nutrients in seafood are known to be beneficial for brain development. Effects of maternal exposure to 2,2′,4,4′ tetrabromo diphenylether (BDE47) was investigated, alongside the potential ameliorating impact of seafood ... -
Cestodes in Atlantic salmon (Salmo salar L.) at a W Norwegian hatchery: Infection dynamics, aspects of development and pathology
(Master thesis, 2003)Many cestodes use copepods as first intermediate hosts, and some may infect juvenile salmonids in hatcheries that use water from sources that are inhabited by native salmonids. Little is known about their infection dynamics ... -
Challenge model for Pasteurella atlantica genomovar salmonicida in Atlantic salmon (Salmo salar L.)
(Master thesis, 2022-06-01)Pasteurellose i Atlantisk laks (Salmo salar L.) har blitt et problem i Norge de siste årene. I fiskehelserapporten fra 2021 karakteriserte Veterinærinstituttet (VI) for første gang pasteurellose i Atlantisk laks som en ...