Predicting the Effects of Endocrine Disrupting Chemicals on Fish Populations

Autor: A. R. Brown, N. Shillabeer, Thomas H. Hutchinson, T. J. Kedwards, N. L. Cunningham, A. M. Riddle
Rok vydání: 2003
Předmět:
Zdroj: Scopus-Elsevier
ISSN: 1549-7860
1080-7039
DOI: 10.1080/713609966
Popis: This study evaluates the applicability and sensitivity of fish population dynamics modeling in assessing the potential effects of individual chemicals on population sustainability and recovery. Fish reproductive health is an increasingly important issue for ecological risk assessment following international concern over endocrine disruption. Life-history data from natural brook trout and fathead minnow populations were combined with effects data from laboratory-based studies, mainly concerning species other than brook trout and fathead minnows, to assess the likely impact of nonylphenol (NP) and methoxychlor (MXC) on brook trout (Salvelinus fontinalis) and fathead minnow (Pimephales promelas) population size. A delay differential equation (DDE) model with a 1-day timestep was used to predict the population dynamics of the brook trout and fathead minnows. The model predicts that NP, could enhance populations by up to 17% at a concentration of 30 µg l−1 based on the results of reduction in survival and incr...
Databáze: OpenAIRE