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Environmental influences on the behavioural ecology of juvenile salmonids – the importance of rearing density
(2010-01-10)
Background and aims: Early environmental conditions are known to influence the phenotypic development of animals, including behavioural alterations. The overall aim of this thesis is to investigate the effects of density, ...
Taxonomy and phylogeny of polychaetes
(2010-05-03)
Polychaetes are a large group of segmented worms that display an enormous morphological diversity. Molecular data has shown in recent years that groups previously thought to be separate from polychaetes are actually part ...
Egg size evolution and paternal care in pipefishes.
(2010-08-30)
In this thesis I explore how sexual selection, sexual conflicts, coevolution with parental care and an environmental selective agent (hypoxia) affect the evolution of different egg characteristics and embryo survival and ...
Phylogeny and Signal Diversity in Widowbirds and Bishops (Euplectes spp.)
(2010-02-19)
Although sexual selection for elaborate signals is well documented in numerous species, the extreme diversity in signal design and expression in many taxa is largely unexplained. This thesis explores phylogenetic, mechanistic ...
Biodiversity and genetic patterns in marine invertebrates
(2010-09-17)
Abstract:
Systematics based on genetic data has both confirmed and contradicted earlier, morphologically defined species and their relatedness. Morphology does not always correspond to genetic lineages, and this will ...
Systematics of Grania (Clitellata: Enchytraeidae), an interstitial annelid taxon
(2010-02-12)
In between the grains of sand on the ocean floor, there exists a world which few people are aware of. Representatives of almost all animal phyla can be found here. The clitellate family Enchytraeidae is in the marine ...
Individual variation in behaviour: personality and performance of brown trout in the wild
(2010-05-07)
Individuals from the same population often show very different behaviour. These differences, when consistent across time, are referred to as animal personality or behavioural syndromes. Explaining the occurrence of animal ...
Studies of fish responses to the antifoulant medetomidine
(2010-03-31)
ABSTRACT
Growth of marine organisms, fouling, on man-made constructions submerged
in the water is regarded as a major problem. For vessels, fouling increases drag and
thereby fuel consumption, wherefore antifouling ...
On the regulation of Postprandial Gastrointestinal Blood Flow in Teleost Fish
(2010-05-20)
Henrik Seth (2010) On the Regulation of Postprandial Gastrointestinal Blood Flow in Teleost Fish Department of Zoology/Zoophysiology, University of Gothenburg, Box 463, 405 30 Göteborg.
The regulation of the cardiovascular ...
Age-class interactions in Atlantic salmon and brown trout: Effects on habitat use and performance
(2010-05-06)
This thesis investigates the underlying mechanisms and the density-regulatory effects of age-class interactions, using juvenile Atlantic salmon (Salmo salar L.) and brown trout (Salmo trutta L.) as study species. Field ...