'Intersex' Fish Found Off Calif. Coast Source > http://news.yahoo.com/s/ap/20051115/ap_on_sc/intersex_fish
2 hours, 59 minutes ago LOS ANGELES - Scientists have discovered sexually altered fish off the Southern California coast, raising concerns that treated sewage discharged into the ocean contains chemicals that can affect an animal's reproductive system. So-called intersex animals are not new, but most previous instances were in freshwater. Environmentalists say this is among the first studies to document the effects in a marine environment. Last year, federal scientists reported finding egg-growing male fish in Maryland's Potomac River. They think the abnormality may be caused by pollutants from sewage plants, feedlots and factories. In the latest studies, presented at Monday's Society of Environmental Toxicology and Chemistry in Baltimore, scientists caught 82 male English sole and hornyhead turbot off Los Angeles and Orange counties. Of those, 11 possessed ovary tissue in their testes, said Doris Vidal of the Southern California Coastal Water Research Project, who led one of the studies. Scientists do not yet know how such sexual defects affect the overall fish population. Nearly a billion gallons of treated sewage are released into the Pacific Ocean every day through three underwater pipelines off Huntington Beach, Playa del Rey and Palos Verdes Peninsula. Although the wastewater is filtered, it still contains contaminants that settle onto the ocean floor. Two related studies found that two-thirds of male fish near the Orange County pipeline had egg-producing qualities. In a laboratory experiment, male fish exposed to sediment collected from the pipelines also developed egg-producing traits. Steve Weisberg, who heads the water research project, said the results warrant further study to determine whether sexually altered fish are widespread in ocean waters. _____ On the Net: Society of Environmental Toxicology and Chemistry: http://www.setac.org Southern California Coastal Water Research Project: http://www.sccwrp.org __________________________________ Yahoo! Mail - PC Magazine Editors' Choice 2005 http://mail.yahoo.com ------------------------ Yahoo! Groups Sponsor --------------------~--> Get fast access to your favorite Yahoo! Groups. Make Yahoo! your home page http://us.click.yahoo.com/dpRU5A/wUILAA/yQLSAA/08NolB/TM --------------------------------------------------------------------~-> contact owner: [EMAIL PROTECTED] Mail list: [EMAIL PROTECTED] Delivered-To: mailing list [EMAIL PROTECTED] List-Unsubscribe: [EMAIL PROTECTED] no flaming arguing or denigration of others allowed contact owner with complaints regarding posting/list or anything else. Thank you. please share/comment/inform and mostly enjoy this list Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/quick_vegetarian/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
