Browsing Norsk institutt for naturforskning by Journals "Journal of Fish Biology"
Now showing items 1-15 of 15
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Comparing dominance relationships and movement of native marble trout (Salmo marmoratus) and introduced rainbow trout (Oncorhynchus mykiss)
(Peer reviewed; Journal article, 2023) -
Continuous outmigration and sequential encountering of environmental cues are important for successful homing of hatchery-reared, anadromous brown trout Salmo trutta
(Peer reviewed; Journal article, 2021)When rehabilitating and reintroducing trout Salmo trutta in rivers, it is a goal that as many as possible survive, home and form self-sustaining populations. Hatcheryreared, anadromous S. trutta have significant lower ... -
Differences in growth between offspring of anadromous and freshwater brown trout Salmo trutta
(Peer reviewed; Journal article, 2021)In this study, individual growth of juvenile offspring of anadromous and freshwater resident brown trout Salmo trutta and crosses between the two from the River Imsa, Norway, was estimated. The juveniles were incubated ... -
Egg incubation temperature affects the timing of the Atlantic salmon Salmo salar homing migration
(Journal article; Peer reviewed, 2018)Here, we show that adult Atlantic salmon Salmo salar returned about 2 weeks later from the feeding areas in the North Atlantic Ocean to the Norwegian coast, through a phenotypically plastic mechanism, when they developed ... -
Egg incubation temperature influences the population-specific outmigration rate of juvenile brown trout Salmo trutta
(Peer reviewed; Journal article, 2022)The present experiment tested if temperature during embryogenesis and parental heritage affected the migratory behaviour of young brown trout Salmo trutta. Two parental forms were used, a freshwater resident form and an ... -
Environmental change influences the life history of salmon Salmo salar in the North Atlantic Ocean
(Journal article; Peer reviewed, 2016)Annual mean total length (LT) of wild one-sea-winter (1SW) Atlantic salmon Salmo salar of the Norwegian River Imsa decreased from 63 to 54 cm with a corresponding decrease in condition factor (K) for cohorts migrating to ... -
Factors influencing return rate and marine residence durationin sea trout populations in Central Norway
(Peer reviewed; Journal article, 2021)Brown trout (Salmo trutta) display extensive plasticity in marine migratory behaviours, with marine migrations considered to be an adaptive strategy which enables sea trout to maximize growth and reproductive potential. ... -
Global warming is projected to lead to increased freshwater growth potential and changes in pace of life in Atlantic salmon Salmo salar
(Peer reviewed; Journal article, 2023)Global warming has been implicated in widespread demographic changes in Atlantic salmon Salmo salar populations, but projections of life-history responses to future climate change are lacking. Here, we first exploit multiple ... -
Growth-enhanced salmon modify stream ecosystem functioning
(Peer reviewed; Journal article, 2021)Use of fast-growing domesticated and/or genetically modified strains of fish isbecoming increasingly common in aquaculture, increasing the likelihood of deliberateor accidental introductions into the wild. To date, their ... -
Keeping close to the river, shore and surface: the first marine migration of brown trout (Salmo trutta) and Arctic charr (Salvelinus alpinus) post-smolts
(Peer reviewed; Journal article, 2021)anadromous, charr, fjord, marine, migration, post-smolt, salmonid, trout -
The pink salmon invasion: a Norwegian perspective
(Peer reviewed; Journal article, 2018)In the period 1956–1979, more than 220 million of pink salmon Oncorhynchus gorbuscha (Walbaum 1792) eggs from the southern part of Sakhalin Island in the Pacific Ocean were transported to the northwestern part of Russia ... -
Small larvae in large rivers: observations on downstream movement of European grayling Thymallus thymallus during early life stages
(Journal article; Peer reviewed, 2017)Behaviour of early life stages of the salmonid European grayling Thymallus thymallus was investigated by assessing the timing of larval downstream movement from spawning areas, the depth at which larvae moved and the ... -
The effect of catch-and-release angling at high water temperatures on behaviour and survival of Atlantic salmon Salmo salar during spawning migration
(Journal article; Peer reviewed, 2015)In this study, behaviour and survival following catch-and-release (C&R) angling was investigated in wild Atlantic salmon Salmo salar (n = 75) angled on sport fishing gear in the River Otra in southern Norway at water ... -
Thiamin dynamics during the adult life cycle of Atlantic salmon (Salmo salar)
(Peer reviewed; Journal article, 2023)Thiamin is an essential water-soluble B vitamin known for its wide range of metabolic functions and antioxidant properties. Over the past decades, reproductive failures induced by thiamin deficiency have been observed in ... -
Time and size at seaward migration influence the sea survival of Salmo salar
(Peer reviewed; Journal article, 2014)Whether time of seaward migration of young Atlantic salmon Salmo salar influences their subsequent survival and growth was investigated in the River Imsa, south-western Norway. Salmo salar were tagged when moving downstream ...