Reproductive status of western mosquitofish inhabiting selenium-contaminated waters in the Grassland water district, Merced county, California.


This study was implemented to determine if western mosquitofish (Gambusia affinis) populations in the Grassland Water District suffer from impaired reproduction because of seleniferous inflows of agricultural drainwater from the Grassland Bypass Project. During June to July 2001, laboratory trials with pregnant female fish collected from two seleniferous… (More)