Modelling population-level consequences of chronic external gamma irradiation in aquatic invertebrates under laboratory conditions

The Science of the Total Environment
Emilie LanceJ Garnier-Laplace

Abstract

We modelled population-level consequences of chronic external gamma irradiation in aquatic invertebrates under laboratory conditions. We used Leslie matrices to combine life-history characteristics (duration of life stages, survival and fecundity rates) and dose rate-response curves for hatching, survival and reproduction fitted on effect data from the FREDERICA database. Changes in net reproductive rate R₀ (offspring per individual) and asymptotic population growth rate λ (dimensionless) were calculated over a range of dose rates in two marine polychaetes (Neanthes arenaceodentata and Ophryotrocha diadema) and a freshwater gastropod (Physa heterostropha). Sensitivities in R₀ and λ to changes in life-history traits were analysed in each species. Results showed that fecundity has the strongest influence on R₀. A delay in age at first reproduction is most critical for λ independent of the species. Fast growing species were proportionally more sensitive to changes in individual endpoints than slow growing species. Reduction of 10% in population λ were predicted at dose rates of 6918, 5012 and 74,131 μGy·h⁻¹ in N. arenaceodentata, O. diadema and P. heterostropha respectively, resulting from a combination of strong effects on severa...Continue Reading

References

Apr 1, 1994·Biochemical Genetics·R T Dillon, A R Wethington
Oct 25, 2002·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Valery E Forbes, Peter Calow
Aug 21, 2003·Ecotoxicology and Environmental Safety·David W Pennington
Feb 1, 1963·Comparative Biochemistry and Physiology·C G BEAMES
Jan 14, 2004·Proceedings of the National Academy of Sciences of the United States of America·John D StarkRoger Vargas
Feb 11, 2005·Journal of Radiological Protection : Official Journal of the Society for Radiological Protection·C-M Larsson
May 23, 2006·Marine Environmental Research·Awadhesh N JhaGeoffrey E Millward
Sep 8, 2007·Journal of Environmental Radioactivity·Rodolphe GilbinJacqueline Garnier-Laplace
Mar 4, 2008·Journal of Environmental Radioactivity·F AlonzoJ Garnier-Laplace
Mar 18, 2008·Journal of Environmental Radioactivity·D CopplestoneA Real
Jun 14, 2008·Journal of Environmental Radioactivity·J Garnier-LaplaceJ L Hingston
May 12, 2009·Integrated Environmental Assessment and Management·Valery E ForbesVolker Grimm
Jun 10, 2010·Journal of Radiological Protection : Official Journal of the Society for Radiological Protection·J Garnier-LaplaceP Whitehouse
Jun 10, 2010·Journal of Radiological Protection : Official Journal of the Society for Radiological Protection·B J HowardP Whitehouse
Nov 4, 2010·Environmental Science & Technology·Nico M Van StraalenTjalf E De Boer
Jan 5, 2012·Radiation Research·Lorna J DallasAwadhesh N Jha

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