Jo Espen Tau Strand- Professor (Assistant) at UiT The Arctic University of Norway
Jo Espen Tau Strand
- Professor (Assistant) at UiT The Arctic University of Norway
About
10
Publications
1,512
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
165
Citations
Introduction
Current institution
Additional affiliations
Position
- Professor (Assistant)
Publications
Publications (10)
Seventeen percent of aquaculture Atlantic salmon in Norway die after transfer from freshwater to seawater facilities, many from infectious disease. The degree to which these deaths are attributable to unseen weakness in smolt preparation is therefore an important concern. Strong evidence in mammals and supporting evidence in other teleosts show tha...
Atlantic salmon is an economically and culturally important species. The species encounters several natural and man-made threats during its migration between fresh water and the ocean, which in combination may explain its ongoing decline. With the aim to better understand whether post-smolt behaviour is influenced by physical oceanographic conditio...
Triploidy is induced in Atlantic salmon (Salmo salar) to produce sterile fish for genetic containment and to hinder early sexual maturation in farmed fish, but it can have unwanted negative effects on growth, health, and welfare. However, the growth and welfare of triploid fish may be improved by adjusting the rearing environment, feeding condition...
The present study investigated whether there is a critical length of photoperiod needed to stimulate a completed parr–smolt transformation (PST) in Atlantic salmon Salmo salar. In two experiments, S. salar parr of the Norwegian aquaculture strain held on continuous light were exposed to a short photoperiod (6L:18D) followed by exposure to 8L:16D, 1...
Two groups of migrating wild Atlantic salmon (Salmo salar) smolts caught within a 1week interval in the River Alta, northern Norway, were tagged with acoustic transmitters and measured
for gill Na+, K+ -ATPase activity in order to compare their smolt status with timing of sea entry. The first group of smolts had low levels
of gill Na+, K+ -ATPase a...
Although photoperiod is considered as a major environmental cue for timing of seasonal events in fish, little is known about the photic information perceived by fish in different aquatic environments. The strongly seasonal Arctic charr, Salvelinus alpinus, reside in lakes covered by thick ice and snow throughout the dark winter in the north. In the...
The present study was undertaken to investigate endocrine and osmoregulatory changes during the parr–smolt transformation of anadromous Arctic charr (Salvelinus alpinus). One year old, first generation hatchery-reared offspring of wild anadromous Arctic charr were kept at natural temperatures and a short daylength (10 h) during winter and continuou...
The objective of this study was to compare the parr–smolt transformation of hatchery reared offspring of one cultured strain (Aqua Gen) and two wild Norwegian populations (Namsen and Alta) of Atlantic salmon. The fish were held in freshwater at two different temperatures (3 and 10 °C) under a simulated natural photoperiod (69°N). Changes in conditi...
The impacts of polychlorinated biphenyl (PCB) exposure on smoltification and subsequent seawater performance were investigated in hatchery-reared, anadromous Arctic charr (Salvelinus alpinus). The fish were subjected to a 2-month summer seawater residence, after which they were orally dosed with 0 (Control, C), 1 (Low Dose, LD) or 100 mg Aroclor 12...
