Effect of temperature on maximum swimming speed and cost of transport in juvenile European sea bass (Dicentrarchus labrax).
Reads0
Chats0
TLDR
The controlling effect of temperature on AMR is shown to be the key factor limiting maximal swimming speed of sea bass and a proposed model integrates the effects of water temperature on the interaction between metabolism and swimming performance.Abstract:
This study is an attempt to gain an integrated understanding of the interactions between temperature, locomotion activity and metabolism in the European sea bass ( Dicentrarchus labrax ). To our knowledge this study is among the few that have investigated the influence of the seasonal changes in water temperature on swimming performance in fish. Using a Brett-type swim-tunnel respirometer the relationship between oxygen consumption and swimming speed was determined in fish acclimatised to 7, 11, 14, 18, 22, 26 and 30°C. The corresponding maximum swimming speed ( U max), optimal swimming speed ( U opt), active (AMR) and standard (SMR) metabolic rates as well as aerobic metabolic scope (MS) were calculated. Using simple mathematical functions, these parameters were modelled as a function of water temperature and swimming speed. Both SMR and AMR were positively related to water temperature up to 24°C. Above 24°C SMR and AMR levelled off and MS tended to decrease. We found a tight relationship between AMR and U max and observed that raising the temperature increased AMR and increased swimming ability. However, although fish swam faster at high temperature, the net cost of transport (COTnet) at a given speed was not influence by the elevation of the water temperature. Although U opt doubled between 7°C and 30°C (from 0.3 to 0.6 m s-1), metabolic rate at U opt represented a relatively constant fraction of the animal active metabolic rate (40-45%). A proposed model integrates the effects of water temperature on the interaction between metabolism and swimming performance. In particular the controlling effect of temperature on AMR is shown to be the key factor limiting maximal swimming speed of sea bass.read more
Citations
More filters
Journal ArticleDOI
A review of the likely effects of climate change on anadromous Atlantic salmon Salmo salar and brown trout Salmo trutta, with particular reference to water temperature and flow.
Bror Jonsson,Nina Jonsson +1 more
TL;DR: There is reason to expect a northward movement of the thermal niche of anadromous salmonids with decreased production and population extinction in the southern part of the distribution areas, migrations earlier in the season, later spawning, younger age at smolting and sexual maturity and increased disease susceptibility and mortality.
Journal ArticleDOI
Pacific salmon in hot water: applying aerobic scope models and biotelemetry to predict the success of spawning migrations.
Anthony P. Farrell,Scott G. Hinch,Steven J. Cooke,David A. Patterson,Glenn T. Crossin,Michael F. Lapointe,M. T. Mathes +6 more
TL;DR: It is suggested that collapse of aerobic scope was an important mechanism to explain the high salmon mortality observed during their migration and models based on thermal optima for aerobic scope for ectothermic animals should improve predictions of population fitness under future climate scenarios.
Journal ArticleDOI
Measurement and relevance of maximum metabolic rate in fishes.
Tommy Norin,Timothy Clark +1 more
TL;DR: Various techniques used to elicit and measure maximum (aerobic) metabolic rate in different fish species with contrasting lifestyles are outlined and the relevance of MMR to the ecology, fitness and climate change resilience of fishes is discussed.
Journal ArticleDOI
Aerobic scope fails to explain the detrimental effects on growth resulting from warming and elevated CO2 in Atlantic halibut
Albin Gräns,Fredrik Jutfelt,Erik Sandblom,Elisabeth Jönsson,Kerstin Wiklander,Henrik Seth,Catharina Olsson,Sam Dupont,Olga Ortega-Martinez,Ingibjörg Eir Einarsdottir,Björn Thrandur Björnsson,Kristina Sundell,Michael Axelsson +12 more
TL;DR: It is shown that aerobic scope and cardiac performance of Atlantic halibut (Hippoglossus hippoglossu) increase following 14–16 weeks exposure to elevated temperatures and even more so in combination with CO2-acidified seawater, demonstrating that oxygen uptake is not the limiting factor for growth performance at high temperatures.
Journal ArticleDOI
Responses by fishes to environmental hypoxia: integration through Fry's concept of aerobic metabolic scope.
Guy Claireaux,Denis Chabot +1 more
TL;DR: The authors revisited the effect of ambient oxygen availability upon fish metabolism and clarified the definitions of limiting, critical and incipient lethal oxygen (ILO) levels.
References
More filters
Journal ArticleDOI
The Respiratory Metabolism and Swimming Performance of Young Sockeye Salmon
TL;DR: Rate of replacement of oxygen debt following fatigue was determined by tracing the return to a resting state of metabolism, and confirmed by re-tests at fatigue velocities, and in most instances the rate declined logarithmically with time.
Journal ArticleDOI
Morphology, Performance and Fitness
TL;DR: The problem of measuring selection on morphological traits is simplified by breaking the task into two parts: measurement of the effects of morphological variation on performance and measurement ofThe effects of performance on fitness.
Journal ArticleDOI
Critical swimming speed: its ecological relevance.
TL;DR: Positive correlations were found between U(crit) and routine activity, metabolic rates and body size of open water, planktivorous fishes, metabolic Rates and body sizes, and direct measurements relating U(Crit) to reproductive success or survival are required to assess such relevancy.
Journal ArticleDOI
The effect of temperature on swimming performance and oxygen consumption in adult sockeye (Oncorhynchus nerka) and coho (O. kisutch) salmon stocks
TL;DR: It is concluded that high-caliber respirometry can be performed in a field setting and that stock-specific differences in swimming performance of adult salmon may be important for understanding upstream migration energetics and abilities.