Tabby cat is also a light colored "butterfly" pattern on the shoulders and three thin stripes (the center stripe is dark) running along its spine. Like the Mackerel tabby, Classic tabbies have dark bars on the legs, tail, and cheeks. The Ticked (or Stripeless) tabby pattern produces agouti hairs, hairs with distinct bands of color on them, breaking up the tabby patterning into a "salt-and-pepper" or "sand"-like appearance. Residual ghost striping or "barring" can often be seen on the lower legs, face, and belly and sometimes at the tail tip, as well as a long dark line running along the back, usually
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.