scholarly journals To boldly gulp: standard metabolic rate and boldness have context-dependent influences on risk-taking to breathe air in a catfish

2015 ◽  
Vol 218 (23) ◽  
pp. 3762-3770 ◽  
Author(s):  
D. J. McKenzie ◽  
T. C. Belao ◽  
S. S. Killen ◽  
F. T. Rantin
Keyword(s):  
Metabolic Rate ◽  
Risk Taking ◽  
Standard Metabolic Rate ◽  
Context Dependent

scholarly journals To boldly gulp: standard metabolic rate and boldness have context-dependent influences on risk-taking to breathe air in a catfish

2016 ◽  
Vol 219 (5) ◽  
pp. 767-767 ◽  
Author(s):  
David J. McKenzie ◽  
Thiago C. Belaõ ◽  
Shaun S. Killen ◽  
F. Tadeu Rantin
Keyword(s):  
Metabolic Rate ◽  
Risk Taking ◽  
Standard Metabolic Rate ◽  
Context Dependent

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

scholarly journals Does parental angling selection affect the behavior or metabolism of brown trout parr?

2019 ◽  
Author(s):  
Jenni M. Prokkola ◽  
Nico Alioravainen ◽  
Lauri Mehtätalo ◽  
Pekka Hyvärinen ◽  
Alexandre Lemopoulos ◽  
...  
Keyword(s):  
Metabolic Rate ◽  
Brown Trout ◽  
Risk Taking ◽  
Salmo Trutta ◽  
Common Garden ◽  
High Standard ◽  
Standard Metabolic Rate ◽  
Captive Population ◽  
Specific Effects ◽  
And Behavior

AbstractThe behavior of organisms can be subject to human induced selection such as that arising from fishing. Angling is expected to induce mortality on fish with bold and explorative behavior, which are behaviors commonly linked to a high standard metabolic rate. We studied the transgenerational response of brown trout (Salmo trutta) to angling-induced selection by examining the behavior and metabolism of 1-year-old parr between parents that were or were not captured by experimental fly fishing. We performed the angling selection experiment on both a wild and a captive population, and compared the offspring for standard metabolic rate and behavior under predation risk in common garden conditions. Angling had population-specific effects on risk taking and exploration tendency, but no effects on standard metabolic rate. Our study adds to the evidence that angling can induce transgenerational responses on fish personality. However, understanding the mechanisms of divergent responses between the populations requires further study on the selectivity of angling in various conditions.

scholarly journals Evidence that standard metabolic rate and risk-taking to breathe air are linked to boldness, activity level and exploratory behaviour in a catfish

2021 ◽  
Author(s):  
David J. McKenzie ◽  
Thiago C. Belão ◽  
Shaun S. Killen ◽  
Felipe R. Blasco ◽  
Morten B.S. Svendsen ◽  
...  
Keyword(s):  
Metabolic Rate ◽  
Risk Taking ◽  
Time Lag ◽  
Clarias Gariepinus ◽  
Standard Metabolic Rate ◽  
Activity Level ◽  
Exploratory Behaviour ◽  
Movement Speed ◽  
Air Breathing ◽  
Data Support

AbstractWe used an air-breathing catfish, Clarias gariepinus, to investigate the hypothesis that individual variation in metabolic rate, and the propensity to take risks to obtain a resource (oxygen from air), would be correlated with behavioural tendencies such as boldness, activity level and exploratory behaviour. The standard metabolic rate (SMR) of 58 juvenile catfish was positively correlated with their rates of aerial respiration in daylight when surfacing was inherently risky. SMR was positively correlated with boldness measured in two contexts, namely the time-lag to resume air-breathing in a potentially dangerous environment (T-res, measured in a respirometer), and the timelag to enter the centre of a novel environment (T-centre, measured in an open field test (OFT)). These two measures of boldness were very highly correlated. Thus, these data support the hypothesis that high SMR and an associated tendency to take risks to acquire resources are linked to increased boldness in animals. Individual SMR was positively correlated with the proportion of time the fish spent moving in the OFT, but was negatively correlated with movement speed. The data confirmed previous observations that these catfish may exhibit a bimodal distribution of T-res phenotypes, whereby individuals either resumed air-breathing relatively rapidly (< 85 min, bold n = 26) or more slowly (> 115 min, shy n = 31) after a startle stimulus. Bold T-res phenotypes had significantly higher SMR than shy; breathed more air during the day, and showed greater boldness but less activity and exploration in the OFT. No parallel bold/shy dichotomy was observed, however, in any measure of boldness in the OFT. Therefore, the data support propositions regarding how SMR and risk-taking should relate to boldness, but provide mixed results about how SMR relates to activity and exploration, and whether bold/shy is a dichotomy or spectrum.

Field-Testing a Standard Metabolic Rate Estimation Technique for Eastern Red-Backed Salamanders

2016 ◽  
Vol 50 (1) ◽  
pp. 138-144
Author(s):  
Patrick J Ruhl ◽  
Robert N Chapman ◽  
John B. Dunning
Keyword(s):  
Metabolic Rate ◽  
Field Testing ◽  
Standard Metabolic Rate ◽  
Estimation Technique ◽  
Rate Estimation

scholarly journals Multigenerational exposure to elevated temperatures leads to a reduction in standard metabolic rate in the wild

2020 ◽  
Vol 34 (6) ◽  
pp. 1205-1214 ◽  
Author(s):  
Natalie Pilakouta ◽  
Shaun S. Killen ◽  
Bjarni K. Kristjánsson ◽  
Skúli Skúlason ◽  
Jan Lindström ◽  
...  
Keyword(s):  
Metabolic Rate ◽  
Elevated Temperatures ◽  
Standard Metabolic Rate ◽  
In The Wild

scholarly journals Sex-specific pace-of-life syndromes

2019 ◽  
Vol 30 (4) ◽  
pp. 1096-1105 ◽  
Author(s):  
Joe A Moschilla ◽  
Joseph L Tomkins ◽  
Leigh W Simmons
Keyword(s):  
Life History ◽  
Metabolic Rate ◽  
Risk Taking ◽  
Life History Traits ◽  
Significant Negative Correlation ◽  
Covariance Structures ◽  
Field Crickets ◽  
Pace Of Life ◽  
Specific Trait ◽  
Trait Covariance

Abstract The pace-of-life syndrome (POLS) hypothesis considers an animal’s behavior, physiology, and life history as nonindependent components of a single integrated phenotype. However, frequent deviations from the expected correlations between POLS traits suggest that these relationships may be context, and potentially, sex dependent. To determine whether the sexes express distinct POLS trait covariance structures, we observed the behavior (mobility, latency to emerge from a shelter), physiology (mass-specific metabolic rate), and life history (life span, development time) of male and female Australian field crickets (Teleogryllus oceanicus). Path analysis modeling suggested that POLS trait covariation differed between the sexes. Although neither sex displayed the complete integration of traits predicted by the POLS hypothesis, females did display greater overall integration with a significant negative correlation between metabolic rate and risk-taking behavior but with life-history traits varying independently. In males, however, there was no clear association between traits. These results suggest that T. oceanicus do indeed display sex-specific trait covariance structures, emphasizing the importance of acknowledging sex in assessments of POLS.

Energy expenditure for thermoregulation and locomotion in emperor penguins

1976 ◽  
Vol 231 (3) ◽  
pp. 903-912 ◽  
Author(s):  
B Pinshow ◽  
MA Fedak ◽  
DR Battles ◽  
K Schmidt-Nielsen
Keyword(s):  
Metabolic Rate ◽  
Energy Requirement ◽  
Thermal Conductance ◽  
Standard Metabolic Rate ◽  
High Energy ◽  
Breeding Cycle ◽  
Emperor Penguin ◽  
Energy Reserves ◽  
Ambient Temperatures ◽  
Emperor Penguins

During the antarctic winter emperor penguins (Aptenodytes forsteri) spend up to four mo fasting while they breed at rookeries 80 km or more from the sea, huddling close together in the cold. This breeding cycle makes exceptional demands on their energy reserves, and we therefore studied their thermoregulation and locomotion. Rates of metabolism were measured in five birds (mean body mass, 23.37 kg) at ambient temperatures ranging from 25 to -47 degrees C. Between 20 and -10 degrees C the metabolic rate (standard metabolic rate (SMR)) remained neraly constant, about 42.9 W. Below -10 degrees C metabolic rate increased lineraly with decreasing ambient temperature and at -47 degrees C it was 70% above the SMR. Mean thermal conductance below -10 degrees C was 1.57 W m-2 degrees C-1. Metabolic rate during treadmill walking increased linearly with increasing speed. Our data suggest that walking 200 km (from the sea to the rookery and back) requires less than 15% of the energy reserves of a breeding male emperor penguin initially weighing 35 kg. The high energy requirement for thermoregulation (about 85%) would, in the absence of huddling, probably exceed the total energy reserves.

Mitochondrial Proton Conductance, Standard Metabolic Rate and Metabolic Depression

2000 ◽  
pp. 413-430 ◽  
Author(s):  
Martin D. Brand ◽  
Tammie Bishop ◽  
Robert G. Boutilier ◽  
Julie St-Pierre
Keyword(s):  
Metabolic Rate ◽  
Standard Metabolic Rate ◽  
Metabolic Depression ◽  
Proton Conductance

scholarly journals Aerobic capacity influences the spatial position of individuals within fish schools

2011 ◽  
Vol 279 (1727) ◽  
pp. 357-364 ◽  
Author(s):  
Shaun S. Killen ◽  
Stefano Marras ◽  
John F. Steffensen ◽  
David J. McKenzie
Keyword(s):  
Metabolic Rate ◽  
Aerobic Capacity ◽  
Leading Edge ◽  
Standard Metabolic Rate ◽  
Fish Schools ◽  
Liza Aurata ◽  
Schooling Behaviour ◽  
In The Wild ◽  
Focal Fish ◽  
Spatial Positioning

The schooling behaviour of fish is of great biological importance, playing a crucial role in the foraging and predator avoidance of numerous species. The extent to which physiological performance traits affect the spatial positioning of individual fish within schools is completely unknown. Schools of juvenile mullet Liza aurata were filmed at three swim speeds in a swim tunnel, with one focal fish from each school then also measured for standard metabolic rate (SMR), maximal metabolic rate (MMR), aerobic scope (AS) and maximum aerobic swim speed. At faster speeds, fish with lower MMR and AS swam near the rear of schools. These trailing fish required fewer tail beats to swim at the same speed as individuals at the front of schools, indicating that posterior positions provide hydrodynamic benefits that reduce swimming costs. Conversely, fish with high aerobic capacity can withstand increased drag at the leading edge of schools, where they could maximize food intake while possibly retaining sufficient AS for other physiological functions. SMR was never related to position, suggesting that high maintenance costs do not necessarily motivate individuals to occupy frontal positions. In the wild, shifting of individuals to optimal spatial positions during changing conditions could influence structure or movement of entire schools.

Sign in / Sign up

Export Citation Format

Share Document