Gill development in sympatric morphs of Arctic charr from Loch Awe, Scotland: A hidden physiological cost of macrobenthos feeding?

2017 ◽  
Vol 27 (3) ◽  
pp. 732-736 ◽  
Author(s):  
Hussain B.B. Jenjan ◽  
Monica Garduño-Paz ◽  
Felicity A. Huntingford ◽  
Colin E. Adams
Keyword(s):  
Arctic Charr ◽  
Physiological Cost ◽  
Sympatric Morphs

Evidence for genetic differences in the offspring of two sympatric morphs of Arctic charr

2002 ◽  
Vol 60 (4) ◽  
pp. 933-950 ◽  
Author(s):  
A. Klemetsen ◽  
J. M. Elliott ◽  
R. Knudsen ◽  
P. Sorensen
Keyword(s):  
Arctic Charr ◽  
Genetic Differences ◽  
Sympatric Morphs

Genetic differences between two sympatric morphs of Arctic charr confirmed by microsatellite DNA

2004 ◽  
Vol 65 (4) ◽  
pp. 1185-1191 ◽  
Author(s):  
J. I. Westgaard ◽  
A. Klemetsen ◽  
R. Knudsen
Keyword(s):  
Microsatellite Dna ◽  
Arctic Charr ◽  
Genetic Differences ◽  
Sympatric Morphs

scholarly journals Environmentally Modulated Repeat Evolution of Polymorphic Arctic Charr Life History Traits

2021 ◽  
Vol 9 ◽  
Author(s):  
Gabrielle Grenier ◽  
Aslak Smalås ◽  
Runar Kjær ◽  
Rune Knudsen
Keyword(s):  
Life History ◽  
Life History Traits ◽  
Growth Parameters ◽  
Salvelinus Alpinus ◽  
Arctic Charr ◽  
Local Environment ◽  
Life History Strategies ◽  
Age At Maturity ◽  
First Time ◽  
Sympatric Morphs

Sympatric Arctic charr, Salvelinus alpinus (L. 1758), morphs have flexible but repeated life history strategies tested across five Norwegian lakes. In several Scandinavian polymorphic Arctic charr populations differentiated by their diet and habitat use, a large littoral omnivorous (LO) morph commonly cooccurs with a smaller profundal spawning (PB/PZ) morph. A third, large piscivorous (PP) morph is also known to occur within a portion of Arctic charr populations in the profundal habitat along with the PB/PZ individuals. Life history traits, such as age at maturity, growth, and diet are known to differ among coexisting morphs. Notably, the PP morph was the longest morph with the oldest age at maturity while the PB/PZ morph showed the shortest lengths overall and youngest age with LO morph being intermediate in both traits. Growth parameters differed across all the morphs. When examining growth within morph groups, the LO morph was found to have different growth across all lakes, while similar reproductive investments and different energy acquisition patterns were seen within the PB/PZ and PP morphs. These results suggest repeat evolution in several life history strategies of reproductively isolated Arctic charr sympatric morphs, notably for the first time in the PP morph, while also highlighting the importance of the local environment in modulating life history traits.

Animal personality adds complexity to the processes of divergence between sympatric morphs of Arctic charr

2021 ◽  
Vol 175 ◽  
pp. 57-73
Author(s):  
Quentin J.-B. Horta-Lacueva ◽  
David Benhaïm ◽  
Michael B. Morrissey ◽  
Sigurður S. Snorrason ◽  
Kalina H. Kapralova
Keyword(s):  
Arctic Charr ◽  
Animal Personality ◽  
Sympatric Morphs

scholarly journals Variation in parasite resistance of Arctic charr, Salvelinus alpinus , between and within sympatric morphs

2021 ◽  
Author(s):  
Anssi Karvonen ◽  
Samantha V. Beck ◽  
Skúli Skúlason ◽  
Bjarni K. Kristjánsson ◽  
Camille A. Leblanc
Keyword(s):  
Salvelinus Alpinus ◽  
Arctic Charr ◽  
Parasite Resistance ◽  
Sympatric Morphs

Mitochondrial DNA diversity among four sympatric morphs of Arctic charr, Salvelinus alpinus L., from Thingvallavatn, Iceland

1991 ◽  
Vol 39 (5) ◽  
pp. 649-659 ◽  
Author(s):  
R. G. Danzmann ◽  
M. M. Ferguson ◽  
S. Skulason ◽  
S. S. Snorrason ◽  
D. L. G. Noakes
Keyword(s):  
Mitochondrial Dna ◽  
Salvelinus Alpinus ◽  
Arctic Charr ◽  
Dna Diversity ◽  
Sympatric Morphs

Genetically based differences in foraging behaviour among sympatric morphs of arctic charr (Pisces: Salmonidae)

1993 ◽  
Vol 45 (6) ◽  
pp. 1179-1192 ◽  
Author(s):  
S. Skúlason ◽  
S.S. Snorrason ◽  
D. Ota ◽  
D.L.G. Noakes
Keyword(s):  
Foraging Behaviour ◽  
Arctic Charr ◽  
Sympatric Morphs

Genetic analysis of four sympatric morphs of Arctic charr, Salvelinus alpinus, from Thingvallavatn, Iceland

1987 ◽  
Vol 20 (1) ◽  
pp. 67-73 ◽  
Author(s):  
Kristinn P. Magnusson ◽  
Moira M. Ferguson
Keyword(s):  
Genetic Analysis ◽  
Salvelinus Alpinus ◽  
Arctic Charr ◽  
Sympatric Morphs

Ontogeny of trophic morphology in four sympatric morphs of arctic charr Salvelinus alpinus in Thingvallavatn, Iceland*

1989 ◽  
Vol 38 (3) ◽  
pp. 281-301 ◽  
Author(s):  
SKÚLI SKÚLASON ◽  
DAVID L. G. NOAKES ◽  
SIGURDUR S. SNORRASON
Keyword(s):  
Salvelinus Alpinus ◽  
Arctic Charr ◽  
Trophic Morphology ◽  
Sympatric Morphs

The influence of intention implementation on throw effectiveness of young basketball players

2014 ◽  
Vol 6 (4) ◽  
Author(s):  
Dominika Wilczynska ◽  
Patrycja Lipinska ◽  
Malgorzata Wolujewicz-Czerlonko
Keyword(s):  
Heart Rate ◽  
Test Results ◽  
Basketball Players ◽  
Physical Effort ◽  
Male And Female ◽  
Mental Preparation ◽  
Physiological Cost ◽  
State Orientation ◽  
Efficiency Test ◽  
Visualization Techniques

AbstractBackground: The purpose of the following research was to find out the influence of imaginary training based on intention implementation on throw effectiveness of young basketball players, both male and female in stressogenic situations. Individual differences (action vs state orientation) between players were also measured in this research.Material/Methods: 76 players (32 females and 44 males) in the cadet category (15-16 years old) from basketball clubs of Gdansk, Gdynia and Sopot took part in this research. In the first stage all players did a throw efficiency test ERPE 05 under two conditions, and their heart rate was measured. Then players were randomly assigned to one of two groups. The first one did imaginary training based on the influence of intention implementation for 10 days, while the other did not. After 10 days ERPE 05 test under two conditions was run again.Results: Test results showed that intention implementation does not influence effectiveness improvement in stressogenic conditions as far as state-oriented players are concerned, but it does lower the physiological cost of physical effort in form of a decreased heart rate.Conclusions: This research proves that visualization training based on implementation instructions does influence young players’ physiology and significantly lowers their heart rate under stressogenic conditions. However useful, visualization techniques used in this research still need other tests and should be applied for a longer period of time to acutely show how they affect young players’ mental preparation

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