Now showing items 171-180 of 735
Mechanisms of cataract development in adult Atlantic salmon growers relative to dietary histidine and plant feed ingredients
(The University of Bergen, 2010-03-19)
Cataracts are defined as opacities of the eye lens and can be caused by a large number of risk factors. In aquaculture, cataracts in farmed Atlantic salmon (Salmo salar L.) represent an ethical problem and can cause ...
Radiometrically determined dates and sedimentation rates for recent sediments in nine North African wetland lakes (the CASSARINA Project)
Sediment cores were collected from nine wetland lakes in Morocco, Tunisia and Egypt for the CASSARINA project investigating environmental change in Northern African wetlands. The cores were dated radiometrically by using ...
Characterization of the Atlantic cod (Gadus morhua L) eggs for estimation of spawning time and proportion of spawning females
(The University of Bergen, 2011-05-29)
A set of eggs from first time spawning Atlantic cod (Gadus morhua L) was investigated for the understanding of variations in egg sizes, e.g. with time in the spawning season, daily inter and intra variations, daily ...
Moldtaking; ein tradisjonell bruksmetode med eit nytt liv?
(The University of Bergen, 2011-05-12)
Back to Africa: monitoring post-hydropower restoration to facilitate reintroduction of an extinct-in-the-wild amphibian
(Ecological Society of America, 2014-08-11)
Monitoring of the ecological efficiency of different restoration and mitigation measures is important to inform decision-making but can be challenging, especially in remote and low-resource settings. Species composition ...
The morphology of the threespine stickleback and its relation to predators and parasites, from three lakes in western Norway
(The University of Bergen, 2011-06-01)
We studied the three-spined stickleback (Gasterosteus aculeatus) in three different lakes, with respect to morphology (Dorsal spine numbers and pelvis), distribution and relationship to the parasites Schistocephalus solidus ...
Taxonomic overview of calcareous sponges (Porifera, Calcarea) in the Jan Mayen vent field at the Mohn Ridge
(The University of Bergen, 2013-12-17)
The Porifera is a very old group of organisms that has been dated back to more than 500 million years. They are important to marine benthic communities by providing protection, contributing to nutrient recycling and ...
Effects of reforestation and intensified land use on vascular plant species richness in traditionally managed hay meadows
(Finnish Botanical Publishing Board, 2003)
In this study of 130 sites with different management we investigated whether vascular plant species richness is significantly reduced when traditionally managed hay meadows are abandoned and reforested. We also compared ...
Factors affecting the efficiency and selectivity of the Andaman Sea demersal sampling trawl
(The University of Bergen, 2011-12-05)
The average catch per unit of swept area (CPUE) from bottom trawl surveys by research vessels are used as an index of abundance for the demersal fish resources of the Thai waters of the Andaman Sea. The surveys are ...
Is the evolution of clutch size limited by incubation ability in shorebirds?
(The University of Bergen, 2015-06-01)
Incubation is a crucial aspect of avian life history where differences in incubation techniques and investments can have long lasting effects on offspring and parental well- being and reproductive success. The factors ...