Now showing items 161-170 of 613
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 ...
Instar growth and Development of Lepeophtheirus salmonis Copepodids.
(The University of Bergen, 2009-05-07)
Salmon louse Lepeophtheirus salmonis, (Krøyer, 1837) is a caligid parasite, responsible for major economical loss and welfare issues in Norwegian marine culture of salmonid species. Infections are mainly controlled with ...
Age determination of Atlantic halibut (Hippoglossus hippoglossus L.) - Size at age and regional growth differences along the coast of Norway
(The University of Bergen, 2011-05-25)
The traditional method for estimating age of Atlantic halibut (Hippoglossus hippoglossus) is through surface readings. Previous studies have not been compared to find the best practice for surface reading techniques. Based ...
Thermal stratification influences maturation and timing of spawning in a local Clupea harengus population
(John Wiley & Sons, Inc., 2013)
Long-term dynamics of wadi trees in a hyper-arid cultural landscape
(The University of Bergen, 2007-03-09)
This study focuses on the long-term dynamics of wadi (dry river valley) trees, in particular Acacia tortilis (Forssk.) Hayne, in the hyper-arid Eastern Desert of Egypt. The project was motivated by the importance of ...
Using behaviour of herring (Clupea harengus L.) to assess post-crowding stress in purse-seine fisheries
(The University of Bergen, 2014-05-30)
Within the purse-seine fishery crowding fish at high densities, during the process of slipping, has been shown to cause high mortalities. Mitigation measures are therefore needed to enable fishermen to avoid slipping fish, ...
Strategies for partition between reproductive investment and body growth in stationary and migratory stocks of Atlantic herring
(The University of Bergen, 2011-06-01)
The present study focused on the trade-off between reproductive investment and body growth of migratory and stationary Atlantic herring (Clupea harengus) populations. Published data from Norwegian spring-spawning (NSS) ...
Korleis gjekk det med havbeiteforsøket med torsk i Masfjorden?
Analysis of IgM sub-variants related to ancestral tetraploidy in salmonid fish
(The University of Bergen, 2013-03-21)
Atlantic salmon (Salmo salar) and brown trout (Salmo trutta) possess two paralogous IgM heavy chain (μ) genes related to ancestral tetraploidy. Accordingly, IgM subpopulations of Atlantic salmon and brown trout can be ...