Cod Wars Iceland, as the Soviet Union, seeking influence in Iceland, stepped in to purchase Icelandic fish. The United States, fearing greater Soviet influence in Iceland, also did so and persuaded Spain and Italy to do likewise. Soviet and American involvement resulted in weakening the punitive effects of the British landing ban. Some scholars refer to the dispute of 1952 to 1956 as one of the Cod Wars, as the object of the dispute and its costs and risks were all similar to those in the other three Cod Wars. Just as the other Cod Wars, the dispute ended with Iceland achieving
Blue cod change. Since a number of evidence indicated that blue cod are relatively sedentary, the fishing pressure may lead to potential local depletion. Recent studies showed that the genetic differences were significant between mainland List of islands of New Zealand population and Chatham Island population. On the other hand, the differences within mainlandList of islands of New Zealand populations were limited while the pattern of the isolation by distance was detected. Further research using microsatellite DNA markers suggested that some significant genetic differences between mainland population exist which indicate the potential long-distance dispersal, but the dispersal rate is too low to