Demographic responses to multigeneration cadmium exposure in two strains of the freshwater gastropod, Biomphalaria glabrata

Archives of Environmental Contamination and Toxicology
Christopher J SaliceG Roesijadi

Abstract

A life table response experiment (LTRE) was used to quantify the population-level effects of continuous, multigeneration cadmium exposure on two strains of the freshwater gastropod, Biomphalaria glabrata: the parasite-resistant BS90 and parasite-susceptible NMRI strains. Snails were exposed to waterborne cadmium for three consecutive generations. Survival, growth, and reproduction were measured empirically and incorporated into a stage-based, deterministic population model. Cadmium significantly affected hatching success, time to maturity, and juvenile and adult survival in both strains. There were significant effects of generation on fecundity, hatching success, time to maturity and juvenile survival in NMRI, and time to maturity and adult survival in BS90. Cadmium significantly affected the population growth rate, lambda, in BS90. Cadmium, generation, and the cadmium x generation interaction had significant effects on lambda in NMRI. At the high cadmium exposure, lambda for NMRI showed a decrease from generation 1 to generation 2, followed by an increase from generation 2 to generation 3. The lambda value in high-cadmium BS90 steadily decreased over the three generations, while NMRI at this same concentration was similar to t...Continue Reading

References

Jul 12, 2002·Environmental Toxicology and Chemistry·Christopher J Salice, Guritno Roesijadi
Jan 1, 1987·Environmental Pollution·P L Klerks, J S Weis
Jun 9, 2004·Environmental Pollution·Brita T A Muyssen, Colin R Janssen
Oct 6, 2005·Environmental Pollution·Rui Guan, Wen-Xiong Wang

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Citations

Dec 20, 2013·Environmental Science and Pollution Research International·Alina KafelPaweł Migula
Sep 18, 2015·Environmental Pollution·David A Kimberly, Christopher J Salice
Aug 7, 2012·Environmental Toxicology and Chemistry·Jamie G SuskiReynaldo Patiño
Oct 22, 2010·Environmental Toxicology and Chemistry·Vincent J KramerGerald T Ankley
Nov 12, 2010·Archives of Environmental Contamination and Toxicology·John M Brausch, Christopher J Salice

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