TY - JOUR
T1 - Effect of stress on a freshwater benthic detritivore
T2 - Scope for growth in Gammarus pulex
AU - Maltby, Lorraine
AU - Naylor, Caroline
AU - Calow, Peter
PY - 1990/6
Y1 - 1990/6
N2 - Scope for growth (SfG), a measure of energy balance (between food intake and metabolic output) within animals, has been used as an indicator of pollution stress in marine systems. However, it has not been used commonly in freshwater systems and here we investigate the sensitivity of SfG in Gammarus pulex, a benthic freshwater crustacean, under conditions often associated with pollution. The effects of four specific substances were investigated; a metal (zinc), an organic (3,4-dichloroaniline), and two dissolved gases (oxygen and ammonia). In all cases SfG was reduced by the stress, primarily due to a depression in energy intake. Only with ammonia was energy output (respiration) significantly affected.
AB - Scope for growth (SfG), a measure of energy balance (between food intake and metabolic output) within animals, has been used as an indicator of pollution stress in marine systems. However, it has not been used commonly in freshwater systems and here we investigate the sensitivity of SfG in Gammarus pulex, a benthic freshwater crustacean, under conditions often associated with pollution. The effects of four specific substances were investigated; a metal (zinc), an organic (3,4-dichloroaniline), and two dissolved gases (oxygen and ammonia). In all cases SfG was reduced by the stress, primarily due to a depression in energy intake. Only with ammonia was energy output (respiration) significantly affected.
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U2 - 10.1016/0147-6513(90)90030-9
DO - 10.1016/0147-6513(90)90030-9
M3 - Article
C2 - 2364911
AN - SCOPUS:0025199556
SN - 0147-6513
VL - 19
SP - 285
EP - 291
JO - Ecotoxicology and Environmental Safety
JF - Ecotoxicology and Environmental Safety
IS - 3
ER -
