Show simple item record

dc.contributor.advisorSquire, Richard
dc.contributor.authorSáenz-Zea, Diana M.
dc.description.abstractThe effect of 0.0001 and 0.00001 mg/L concentrations of Liquid Edger (LE) herbicide was evaluated on the parental generation, F1 and F2 of Artemia franciscana. The criteria evaluated were parental life span, survival to adulthood, fecundity, fertility and sex ratio. Only the parental generation was directly exposed to the herbicide. Only the F2 generation was evaluated for survival to adulthood and sex ratio. The 0.00001mg/L treatment of LE reduced the life span of females from the parental generation (P<0.005). The longevity of F1 females whose parents were exposed to the 0.00001mg/L treatment was significantly reduced (P<0.005). Parental females that were exposed to either of the treatments released significantly fewer broods than those from the controls (P<0.005). F1 females did not have significantly fewer broods (P>0.005). Parental females that were exposed to either of the treatments had significantly lower fecundity and fertility than did control females (P<0.005). F1 females from treated parents did not have significantly lower fecundity or fertility than did control F1 females (P>0.005). Liquid Edger did not affect survival to adulthood or sex ratio of the F1 or F2. Liquid Edger caused female debility and the F1 generation showed effects probably caused by residues of pesticide that were passed from the mother to the offspring.en_US
dc.description.abstractEn la presente investigación se evaluó el efecto de las concentraciones 0.0001 y 0.00001mg/L del herbicida “Liquid Edger” sobre la generación parental, filial 1 y 2 de Artemia franciscana. Los criterios evaluados fueron longevidad parental, sobrevivencia a adulto, fecundidad, fertilidad y proporción de sexos. El tratamiento 0.00001 mg/L de “Liquid Edger” redujo la longevidad de las hembras de la generación parental (P<0.005). La longevidad de las hembras de la filial 1 cuyos padres fueron expuestos al tratamiento 0.00001 mg/L se redujo significativamente (P<0.005). Las hembras expuestas a los dos tratamientos de LE produjeron significativamente menos camadas que las hembras del control (P<0.005). Las hembras de la filial 1 no redujeron el número de camadas (P>0.005). En la generación parental, la fecundidad y fertilidad de las hembras expuestas a los dos tratamientos fue significativamente menor que las del control (P<0.005). No hubo reducción significativa en fecundidad y fertilidad en las hembras de la filial 1 (P>0.005). No se afectó la sobrevivencia a adulto y relación de sexos en las filiales 1 y 2. “Liquid Edger” causó debilidad de las hembras y los efectos vistos en la filial 1 posiblemente fueron causados por residuos de pesticida que la madre le transmitió a su descendencia.en_US
dc.subjectLiquid Edger (LE) herbicideen_US
dc.subjectArtemia franciscanaen_US
dc.subject.lcshArtemia--Effect of pesticides onen_US
dc.titleThe toxicity of liquid edger herbicide on the brine shrimp Artemia franciscanaen_US
dc.rights.licenseAll rights reserveden_US
dc.rights.holder(c) 2008 Diana M.Sáenz-Zeaen_US
dc.contributor.committeeLee, Jesus
dc.contributor.committeeMayer, Robert
dc.contributor.committeeSantos, Carlos
dc.contributor.representativeCurbelo, Aury M.
dc.contributor.collegeCollege of Arts and Sciences - Sciencesen_US
dc.contributor.departmentDepartment of Biologyen_US

Files in this item


This item appears in the following Collection(s)

  • Theses & Dissertations
    Items included under this collection are theses, dissertations, and project reports submitted as a requirement for completing a degree at UPR-Mayagüez.

Show simple item record

All rights reserved
Except where otherwise noted, this item's license is described as All Rights Reserved