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.
Pet shops sell channel catfish (Ictalurus punctatus) when they're tiny youngsters. Properly fed channel catfish, though, will grow to about 60 pounds. Channel catfish will grow large enough to require an outdoor pond or an aquarium with a capacity of several hundred gallons. Essentially, channel catfish like to eat everything.