This NPR article describes the results of a very interesting study on a dramatically increased incidence of an 'intersex' condition - and most prevalently found in SMB and LMB:
http://www.npr.org/templates/story/story.php?storyId=112888785The nine-year study found this condition in 33% of SMB and 18% of LMB, with even higher incidence in the southeast where 70-90% of fish were found in an intersex condition.
Researchers are not sure precisely of the cause, but here is an excerpt paragraph: "...experiments in laboratories point to certain chemicals, especially a group loosely called "estrogenic compounds." These mimic the behavior of natural sex hormones — estrogens — in the body. These can come from pharmaceuticals like birth control pills, or agricultural runoff loaded with pesticides, as well as an ingredient in plastic."
Apparently, the condition does not appear to prevent reproduction, and the fish are still safe to eat.
I've come to have great respect for the experience and expertise of pondboss contributors and moderators. I'm wondering what your thoughts and opinions are in this regard.
