Investigating reproductive disease in Southern stingrays (Dasyatis americana)

Many aquariums in the US have noticed over the years that stingrays appear to be prone to a reproductive disease that results in cystic ovaries and a fluid engorged uterus. Symptoms include anorexia, lethargy and even death. Preliminary endocrine results suggest elevated circulating estradiol and low progestin accompany this disorder. As this is a reproductive […]