Effect of temperature on growth, survival, thermal behavior, and critical thermal maximum in the juveniles of Macrobrachium occidentale (Holthuis, 1950) (Decapoda: Caridea: Palaemonidae) from Mexico

The effect of water temperature on growth, survival, and thermal behavior was studied in the juveniles of the prawn Macrobrachium occidentale (Holthuis, 1950) by exposing them to a replicate experimental design that included the complete temperature range in its natural environment. The optimal grow...

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Bibliographic Details
Published in:Journal of crustacean biology 2018-07, Vol.38 (4), p.483-488
Main Authors: Hernández-Sandoval, Pedro, Diaz-Herrera, Fernando, Diaz-Gaxiola, Jesus Manuel, Martinez-Valenzuela, Carmen, Garcia-Guerrero, Marcelo
Format: Article
Language:English
Subjects:
Acclimation
Acclimatization
Aquatic crustaceans
Climate
Crustaceans
Decapoda
Design of experiments
Experimental design
Freshwater crustaceans
Growth
Juveniles
Macrobrachium occidentale
Marine crustaceans
Physiology
Prawns
Survival
Temperature effects
Thermodynamic properties
Tropical climate
Variance analysis
Water temperature
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Summary:The effect of water temperature on growth, survival, and thermal behavior was studied in the juveniles of the prawn Macrobrachium occidentale (Holthuis, 1950) by exposing them to a replicate experimental design that included the complete temperature range in its natural environment. The optimal growth was between 25 °C and 28 °C. Survival was 100% at 22 °C, 97% at 28 °C, and 92% at 25 °C and 31 °C. The final thermal preference was 27.7 °C with no significant effect from acclimation temperature (Kruskall Wallis, P > 0.05). The different values for critical thermal maximum (CTMax), depending on acclimation temperature, were 37.5 °C, 38.4 °C, 39.4 °C, and 40.8 °C, all were significantly different (ANOVA, P < 0.05). The calculated acclimation response ratio ranged from 0.37 to 0.53. These values agree with other values obtained for other decapod crustaceans from tropical and sub-tropical climates. This information aims to help understand the survival of Macrobrachium prawns facing temperature variations.
ISSN:0278-0372
1937-240X
DOI:10.1093/jcbiol/ruy024