Aggression and growth depression in juvenile Atlantic salmon: the consequences of individual variation in standard metabolic rate

1998 ◽  
Vol 52 (5) ◽  
pp. 1026-1037 ◽  
Author(s):  
C. J. Cutts ◽  
N. B. Metcalfe ◽  
A. C. Taylor
Keyword(s):  
Atlantic Salmon ◽  
Metabolic Rate ◽  
Individual Variation ◽  
Standard Metabolic Rate ◽  
Growth Depression ◽  
Juvenile Atlantic Salmon

Effects of diel temperature fluctuation on the standard metabolic rate of juvenile Atlantic salmon (Salmo salar): influence of acclimation temperature and provenience

2015 ◽  
Vol 72 (9) ◽  
pp. 1306-1315 ◽  
Author(s):  
Hélène Oligny-Hébert ◽  
Caroline Senay ◽  
Eva C. Enders ◽  
Daniel Boisclair
Keyword(s):  
Atlantic Salmon ◽  
Metabolic Rate ◽  
Salmo Salar ◽  
Constant Temperature ◽  
Temperature Fluctuation ◽  
Standard Metabolic Rate ◽  
Acclimation Temperature ◽  
Atlantic Salmon Salmo Salar ◽  
Juvenile Atlantic Salmon ◽  
Thermal Regimes

We assessed the metabolic response of juvenile Atlantic salmon (Salmo salar; JAS) originating from two rivers with different natural thermal regimes to different acclimation temperature (15 or 20 °C) and diel temperature fluctuation (constant: ±0.5 °C; fluctuating: ±2.5 °C). Diel temperature fluctuation (15 ± 2.5 °C) near the thermal optimum (16 °C) for the species did not influence standard metabolic rate (SMR) compared with JAS acclimated to a constant temperature of 15 °C. Diel temperature fluctuation at 20 ± 2.5 °C increased SMR of JAS from the warmer river by 33.7% compared with the same fish acclimated to a constant temperature of 20 °C. SMR of JAS from the cooler river held at fluctuating conditions had SMR that were 8% lower than SMR at constant conditions. The results suggest that the mean temperature to which JAS is exposed may affect their responses to diel temperature fluctuation and that this response may vary between populations originating from rivers with different natural thermal regimes. Results were used to develop the first empirical SMR model for JAS subjected to diel temperature fluctuation using fish mass (3–36 g wet) and temperature (12.5–22.5 °C) as explanatory variables.

scholarly journals Standard metabolic rate does not associate with age‐at‐maturity genotype in juvenile Atlantic salmon

2021 ◽  
Author(s):  
Eirik R. Åsheim ◽  
Jenni M. Prokkola ◽  
Sergey Morozov ◽  
Tutku Aykanat ◽  
Craig R. Primmer
Keyword(s):  
Atlantic Salmon ◽  
Metabolic Rate ◽  
Standard Metabolic Rate ◽  
Age At Maturity ◽  
Juvenile Atlantic Salmon

scholarly journals Can variation in standard metabolic rate explain context-dependent performance of farmed Atlantic salmon offspring?

2018 ◽  
Vol 9 (1) ◽  
pp. 212-222 ◽  
Author(s):  
Grethe Robertsen ◽  
Donald Reid ◽  
Sigurd Einum ◽  
Tonje Aronsen ◽  
Ian A. Fleming ◽  
...  
Keyword(s):  
Atlantic Salmon ◽  
Metabolic Rate ◽  
Standard Metabolic Rate ◽  
Context Dependent ◽  
Farmed Atlantic Salmon

Relationship between individual variation in morphological characters and swimming costs in brook charr (Salvelinus fontinalis) and yellow perch (Perca flavescens)

2002 ◽  
Vol 205 (7) ◽  
pp. 1031-1036 ◽  
Author(s):  
Patrice Boily ◽  
Pierre Magnan
Keyword(s):  
Metabolic Rate ◽  
Individual Variation ◽  
Yellow Perch ◽  
Body Shape ◽  
Perca Flavescens ◽  
Standard Metabolic Rate ◽  
Morphological Characters ◽  
Brook Charr ◽  
Indirect Consequence ◽  
Thrust Forces

SUMMARY The objective of this study was to examine if individual variation in morphological characters is related to swimming costs in wild and domestic brook charr, and in wild yellow perch. Our results indicate that absolute swimming cost was higher in wild and domestic brook charr individuals having a stout body shape, and these individuals are therefore less efficient swimmers. These results are consistent with field observations that described relationships between individual variation in morphology and habitat use in salmonids. Further analyses indicated that standard metabolic rates were higher in individuals having a stout body shape, and that net swimming cost was not related to body shape. Accordingly, the higher swimming cost of stout individuals is probably an indirect consequence of an increase in standard metabolic rate. In wild yellow perch, absolute and net swimming costs were higher in individuals having a stout body shape and a low aspect caudal fin,and standard metabolic rate was not related to body shape. Therefore, in contrast to brook charr, individual variation in the swimming cost of yellow perch appears to be related to morphological characters that affect drag and thrust forces, which is consistent with previously published inter-specific observations.

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