Consequences of elevated temperatures on life‐history traits of an introduced fish, pumpkinseed<i> Lepomis gibbosus</i>

Dembski, S.; Masson, G.; Monnier, David; Wagner, P.; Pihan, Jean-Claude

doi:10.1111/j.1095-8649.2006.01087.x

Cited by 53 publications

(55 citation statements)

References 53 publications

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“…Les larves de hotu et de vandoise pré-sentent également des préférences pour les faibles températures (tempé-rature létales : 19 et 18°C respectivement ; Küttel et al, 2002) et les deux espèces se reproduisent en eau froide (maximum : 16 et 14°C pour le hotu et la vandoise respectivement ; Küttel et al, 2002). Le goujon a été intégré à ce groupe du fait d'une température de reproduction relativement basse (optimum : 12-17°C ; Küttel et al, 2002) Dembski et al, 2006). L'hétérogénéité des données disponibles concernant les préférences thermiques n'a pas permis un codage mathématique des affinités.…”

Section: Proportion D'espèces Thermophilesunclassified

Impacts des pressions climatiques et non climatiques sur les communautés piscicoles de grands fleuves français

Daufresne¹

2008

Hydroécol. Appl.

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Section: Proportion D'espèces Thermophilesunclassified

Impacts des pressions climatiques et non climatiques sur les communautés piscicoles de grands fleuves français

Daufresne¹

2008

Hydroécol. Appl.

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“…Our method has dealt with the phenotypically plastic response to varied growth and to variations in body condition, revealing a residual trend that, in the absence of alternative equally plausible explanations, suggests evolutionary changes in maturation. Possible factors that may influence the process of maturation other than through their effects on growth and condition, are temperature (Grift et al 2003, Dhillon & Fox 2004, Dembski et al 2006) and social factors (Sohn 1977, Hobbs et al 2004.…”

Section: Interpretation Of Maturation Trendsmentioning

confidence: 99%

Three-dimensional maturation reaction norms for North Sea plaice

Grift¹,

Heino²,

Rijnsdorp³

et al. 2007

Mar. Ecol. Prog. Ser.

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Probabilistic maturation reaction norms (PMRNs) with up to 3 explanatory dimensions were estimated for female North Sea plaice Pleuronectes platessa. The 3-dimensional PMRNs reported here (1) are the first to be obtained for any organism, (2) reveal the differential capacity of alternative life-history state variables to predict the onset of reproduction, (3) document consistent temporal trends in maturation, and (4) help disentangle the contributions of genetic and plastic effects to these trends. We first show that PMRNs based on age and weight provide slightly more accurate approximations of maturation probabilities than PMRNs based on age and length. At the same time, weight-based PMRNs imply a much wider spread of maturation probabilities than lengthbased PMRNs. We then demonstrate that including condition as a third explanatory variable improves predictions of maturation probability. The resultant 3-dimensional PMRNs for age-lengthcondition or age-weight-condition not only show how, at given size and age, maturation probability increases with condition, but also expose how this impact of condition decreases with age and has changed over time. Our analysis reveals several interesting temporal trends. First, it is demonstrated that even after removing plastic effects on maturation captured by age, length, weight and condition, residual trends towards maturation at younger ages and smaller lengths remain. Second, we find that the width of both length-and weight-based PMRNs decreased significantly over time. Third, age and condition are nowadays affecting maturation probabilities less than they did decades ago. We conclude that plaice are currently maturing at a very low age, size and body condition, and that the narrow and steep reaction norms do not allow a strong continuation of the observed trends. The findings obtained are in good agreement with predictions from life-history theory based on the hypothesis of evolutionary change caused by heavy exploitation.

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“…Because body temperature influences the speed of all metabolic processes, the ambient temperature affects various physiological processes, such as protein expression and binding (Deane and Woo, 2005;Huber and Guderley, 1993), blood circulation (Aguiar et al, 2002;Lecklin et al, 1995), respiration (Sollid et al, 2005), hormonal activity (Fortune, 1958), the immune system (Le Morvan et al, 1998) and behavior (Cossins et al, 1977;Friedlander et al, 1976;McCormick et al, 2002;Zitek et al, 2004). In addition, ambient temperature is also known to affect several parameters directly related to reproductive fitness, such as growth (Dembski et al, 2006;Hall and Johnston, 2003), egg size (Gillet and Quétin, 2006;Kokita, 2003) and life span (Dembski et al, 2006).…”

Section: Introductionmentioning

confidence: 99%

The influence of ambient temperature and thermal acclimation on hearing in a eurythermal and a stenothermal otophysan fish

Wysocki

Montey

Popper

2009

Journal of Experimental Biology

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SUMMARY Being ectothermic, fish body temperature generally depends on ambient water temperature. Thus, ambient temperature might affect various sensory systems,including hearing, as a result of metabolic and physiological processes. However, the maintenance of sensory functions in a changing environment may be crucial for an animal's survival. Many fish species rely on hearing for acoustic orientation and communication. In order to investigate the influence of temperature on the auditory system, channel catfish Ictalurus punctatus was chosen as a model for a eurytherm species and the tropical catfish Pimelodus pictus as a model for a stenotherm fish. Hearing sensitivity was measured with animals acclimated or unacclimated to different water temperatures. Ambient water temperature significantly influenced hearing thresholds and the shape of auditory evoked potentials, especially at higher frequencies in I. punctatus. Hearing sensitivity of I. punctatus was lowest at 10°C and increased by up to 36 dB between 10°C and 26°C. Significant differences were also revealed between acclimated and unacclimated animals after an increase in water temperature but not a decrease. By contrast, differences in hearing thresholds were smaller in P. pictus, even if a similar temperature difference (8°C) was considered. However, P. pictus showed a similar trend as I. punctatus in exhibiting higher hearing sensitivity at the highest tested temperature, especially at the highest frequency tested. The results therefore suggest that the functional temperature dependence of sensory systems may differ depending upon whether a species is physiologically adapted to tolerate a wide or narrow temperature range.

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Consequences of elevated temperatures on life‐history traits of an introduced fish, pumpkinseed Lepomis gibbosus

Cited by 53 publications

References 53 publications

Impacts des pressions climatiques et non climatiques sur les communautés piscicoles de grands fleuves français

Impacts des pressions climatiques et non climatiques sur les communautés piscicoles de grands fleuves français

Three-dimensional maturation reaction norms for North Sea plaice

The influence of ambient temperature and thermal acclimation on hearing in a eurythermal and a stenothermal otophysan fish

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