Short-term physiological effects of a xenobiotic mixture on the freshwater mussel Elliptio complanata exposed to municipal effluents

2011 ◽  
Vol 111 (8) ◽  
pp. 1096-1106 ◽  
Author(s):  
E. Farcy ◽  
F. Gagné ◽  
L. Martel ◽  
M. Fortier ◽  
S. Trépanier ◽  
...  
2019 ◽  
Vol 246 ◽  
pp. 69-78 ◽  
Author(s):  
Sarel J. Brand ◽  
Johannes H. Erasmus ◽  
Marelize Labuschagne ◽  
Daniel Grabner ◽  
Milen Nachev ◽  
...  

1979 ◽  
Vol 30 (6) ◽  
pp. 741 ◽  
Author(s):  
WG Jones ◽  
KF Walker

The accumulation of iron, manganese, zinc and cadmium by freshwater mussels in the River Murray, South Australia, and their response to changes in environmental iron concentrations are considered. Metal loads varied markedly between individuals from the same population. The variability is accounted for partly by systematic relationships between metal loads and body weight and age, but not sex. The distribution of metals between the major organs is discussed, but the analysis of separate organs showed no advantage for biological monitoring. Comparisons between iron concentrations in river water and in mussels showed no clear correspondence. The study suggests that V. ambiguus may not be a good short-term monitor of iron, but still may have potential as a long-term and site-comparison monitor of metals. once inherent variability is taken into account.


2004 ◽  
Vol 31 (1) ◽  
pp. 33 ◽  
Author(s):  
Stephen Obeng Gyimah ◽  
Rajulton Fernando

This paper examines whether childhood deaths elicit an explicit, conscious and intentional fertility response using the 1998 Demographic and Health Survey data for Ghana and Kenya . Using multivariate hazard models, childhood mortality experience was found to have long term fertility implications beyond the short term physiological effects. In both countries, women who have experienced childhood mortality were found to have significantly higher number of additional children than those without. The death of the first child in particular was found to be associated with the risk of a higher order birth consistent with recent findings in Cameroon. The policy implications of the findings are discussed.


2013 ◽  
Vol 32 (12) ◽  
pp. 2849-2854 ◽  
Author(s):  
Carrie J. Blakeslee ◽  
Heather S. Galbraith ◽  
Laura S. Robertson ◽  
Barbara St. John White

2001 ◽  
Vol 115 (1) ◽  
pp. 97-106 ◽  
Author(s):  
F. Gagné ◽  
C. Blaise ◽  
B. Lachance ◽  
G.I. Sunahara ◽  
H. Sabik

2007 ◽  
Vol 4 (1) ◽  
pp. 64
Author(s):  
M. Jacobson ◽  
F.C. Howarth ◽  
E. Adeghate ◽  
K. Fatima-Shad

As the world prevalence of diabetes mellitus (DM) increases, animal models of the disease's progression are required for researching effective treatment. The streptozotocin (STZ) treated rat is known to cause hyperglycaemia. This study confirms that this animal model also displays DM physiological effects in the animal heart rate (HR) and heart rate variability (HRV). In particular, 5 minutes of rat (n=13) electrocardiogram (ECG) is acquired hourly for 30 days. At day 10, the animal (n=7) is dosed with STZ and the ECG is analyzed in order to determine the HR and HRV. The HRV is indexed using two time-based analyses, based on long-term (24hr) and short-term (5min) analyses. All analyses are compared to control non-STZ dosed animals (n=6) and display significant DM effects. 


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