The second macroeconomic consideration of increased imports is the impact on exchange rates. As we have shown in the previous section, as U.S. consumers increase their consumption of imports, the supply of dollars in foreign exchange markets rises.
A member of the Ictalurus genus of American catfishes, channel catfish have a top-end size of about 40â50 pounds (18â23 kg). The world record channel catfish weighed 58 pounds, and was taken from the Santee-Cooper Reservoir in South Carolina, on July 7, 1964. Realistically, a channel catfish over 20 lb (9 kg) is a spectacular specimen, and most catfish anglers view a 10-lb (4.5-kg) fish as a very admirable catch.
In North America the largest Ictalurus furcatus (Blue catfish) caught in the Missouri River on 20 July 2010, weighed 59 kilograms (130 lb). The largest flathead catfish, Pylodictis olivaris, ever caught was in Independence, Kansas, weighing 56 kilograms (123 lb).