1 silver AlertA Silver Alert has been issued for Rebecca Anne Manktelow by the N.C. 2  silver AlertA Silver Alert has been issued for Tyrese Grant by the N.C. 3  silver AlertA Silver Alert has been issued for Olivia Strong by the N. 4 C. silver AlertA Silver Alert has been issued for Tyler Isiah McCormick by the N. C.
While this mutation allows the Hudson River tomcod to thrive in toxic waters, its effect on other organisms in the ecosystem is likely not so positive. Tomcod that carry the mutation can withstand high levels of PCBs, which are stored in the fishes' fat.
Background PCBs are mixtures of synthetic organic chemicals that were commonly used for various applications from approximately 1929 until 1979 when the U.S. banned PCB manufacturing, processing, distribution, and use (EIP Associates, 1997). PCB FACT SHEET.CP.8-6-03.DOC equipment and appliances such as hair dryers, air conditioners, refrigerators, power tools, and submersible well pumps. Also includes capacitors used in appliances and electronics such as televisions and microwave ovens.