Investigation of the Multixenobiotic Resistance Mechanism in the Freshwater Fishes Western Mosquitofish, Gambusia affinis, and Bluegill Sunfish, Lepomis macrochirus

2009 ◽  
Vol 83 (5) ◽  
pp. 640-643 ◽  
Author(s):  
C. L. Damaré ◽  
A. K. Kaddoumi ◽  
K. N. Baer
1981 ◽  
Vol 113 (3) ◽  
pp. 185-191 ◽  
Author(s):  
A. E. Colwell ◽  
C. H. Schaefer

AbstractTreatment of a pond with a 0.5% sand granule formulation of SIR-8514 yielded a maximum, concentration (4.6 ppb) by 1 day following the application. No residues were detected in the pond sediment and by 28 days posttreatment residues were not found at any depth of the water column. Emergence of pestiferous dipterans was reduced by >99%, and planktonic arthropod populations decreased by >90% following the treatment. Planktonic rotifers and dinoflagellates, and benthic organisms were less severely affected.Bluegill sunfish (Lepomis macrochirus Rafinesque) and mosquitofish (Gambusia affinis Baird and Girard) accumulated maximum concentrations (ca. 400 ppb) of SIR-8514 by 2 days posttreatment. No residues in fish were detected by 28 days posttreatment, and no fish mortality was observed.


2009 ◽  
Vol 20 (2) ◽  
pp. 231-237 ◽  
Author(s):  
Alexander D.M. Wilson ◽  
Jean-Guy J. Godin

1990 ◽  
Vol 68 (3) ◽  
pp. 591-595 ◽  
Author(s):  
D. J. Booth

Field experiments were conducted over the summer of 1983 to determine food-evacuation rate and measure stomach fullness of bluegill sunfish (Lepomis macrochirus). A combination of these data gave estimates of daily food intake of fish. Fish were captured and held in large holding pens in Lake Opinicon, Ontario, Canada, and periodically subsampled over 24 h to monitor changes in mean weight of stomach contents. Stomach-evacuation rates obtained in this way increased significantly with water temperature over the range 10–25 °C. However, variation in stomach-evacuation rate was considerable, reducing the utility of water temperature as a predictor of stomach-evacuation rate. It is suggested that the simple field methods employed here to estimate stomach evacuation and food intake are more useful in the estimation of daily ration than the more commonly employed laboratory-based methods.


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