| thyroid endocrine disruption in stonerollers and cricket frogs from perchlorate-contaminated streams in east-central texas. | in october 2001 and march 2002, a field survey of central stonerollers (campostoma anomalum) from perchlorate-contaminated streams in central texas was conducted to assess thyroid endocrine disruption. a survey of adult male and female cricket frogs (acris crepitans) was performed at the same site between 2001 and 2003. perchlorate is an oxidizer primarily used in solid-fuel rockets, and many sites that processed or used perchlorate are now contaminated. histological analysis revealed that the f ... | 2006 | 16341611 |