Tabby cat or "hypermelanistic" allele, "a", does not. Solid-color (black or blue) cats have the "aa" combination, hiding the tabby pattern, although sometimes a suggestion of the underlying pattern can be seen (called "ghost striping") This pattern is mostly seen in young cats that still have the baby coat. The right pattern (Classic, Mackerel, or Spotted) will reveal itself then, because that is independent of whether it is tabby or solid. However, the agouti gene only controls the production of black pigment, so a cat with an "O" allele for orange color will still have the tabby pattern. As a result, both
Mackerel for about 75% of the total catch of scombroid mackerels. Chilean jack mackerel are the most commonly fished non-scombroid mackerel, fished as heavily as chub mackerel (see second graph on the right). The species has been overfished, and its fishery may now be in danger of collapsing. Smaller mackerel behave like herrings, and are captured in similar ways. Fish species like these, which school near the surface, can be caught efficiently by purse seining. Huge purse seiner vessels use spotter planes to locate the schooling fish. Then they close in using sophisticated sonar to track the shape of the shoal.