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Effects of a changing abiotic environment on the energy metabolism in the estuarine mysid shrimp Neomysis integer (Crustacea: Mysidacea)
Verslycke, T.; Janssen, C.R. (2002). Effects of a changing abiotic environment on the energy metabolism in the estuarine mysid shrimp Neomysis integer (Crustacea: Mysidacea). J. Exp. Mar. Biol. Ecol. 279(1-2): 61-72.
In: Journal of Experimental Marine Biology and Ecology. Elsevier: New York. ISSN 0022-0981; e-ISSN 1879-1697, more
Peer reviewed article  

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    Aquatic organisms > Estuarine organisms
    Biological stress
    Biology > Physiology > Ecophysiology
    Chemical elements > Nonmetals > Atmospheric gases > Oxygen > Dissolved gases > Dissolved oxygen
    Energy budget
    Environmental effects > Salinity effects
    Environmental effects > Temperature effects
    Environmental factors > Abiotic factors
    Fauna > Aquatic organisms > Aquatic animals > Shellfish > Marine organisms > Marine crustaceans
    Metabolism > Animal metabolism
    Neomysis integer (Leach, 1814) [WoRMS]; Neomysis integer (Leach, 1814) [WoRMS]
    Belgium, Zeeschelde, Galgenweel [Marine Regions]
    Marine/Coastal; Brackish water
Author keywords
    abiotic stress; biomarker; cellular energy allocation; energy metabolism; Neomysis integer

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  • Verslycke, T., more
  • Janssen, C.R., more

    Adaptations to life in an estuary include a wide salinity tolerance, an extremely efficient osmoregulatory and respiratory physiology. These adaptive mechanisms are energy-consuming and relatively little data is available on the combined effects of abiotic stress factors on the energy metabolism of mysid shrimp. A new methodology (cellular energy allocation, CEA) to assess the energy budget was adopted for the estuarine crustacean Neomysis integer (Crustacea: Mysidacea). The biochemical composition of N. integer was determined: protein (7.39±1.81% wet weight), lipid (3.99±1.05% ww) and sugar (0.42±0.18% ww). To assess the effect of natural variability on the energy metabolic processes in N. integer, a fractional factorial test design was set up with different naturally (Westerscheldt estuary, The Netherlands) occurring combinations of temperature, salinity and dissolved oxygen. The different abiotic factors had no significant effect on the energy metabolism of N. integer within the tested range. Temperature explained the decrease in lipid, protein and total energy reserves. Temperature, in general, had the most adverse effect on the CEA. Salinity was the most important factor explaining the effects on sugar reserves, with higher salinities causing an increased sugar demand. By modeling the influence of these abiotic stresses on the energy metabolism (CEA) of N. integer, it will be possible to use the CEA as an ecologically relevant biomarker of exposure to pollutants in estuaries.

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