“…EDSs may interfere with any part of endocrine control, including production, release, transport, metabolism, receptor binding, action or elimination. The sum total of these effects can be measured in fish laboratory bioassays designed to assess reproduction, development and growth (Patyna et al, 1999;Zillioux et al, 2001;Parrott and Wood, 2002;Seki et al, 2004). Chronic exposure to xenobiotics can induce changes to organisms not noted by shorter-term exposures (Parrott and Blunt, 2005), including factors that may be manifested at the population level, such as lower recruitment (Ankley et al, 2001).…”