Tabby cat in the spine. The Spotted tabby is a modifier that breaks up the Mackerel tabby pattern so that the stripes appear as spots. Similarly, the stripes of the Classic tabby pattern may be broken into larger spots. Both large spot and small spot patterns can be seen in the Australian Mist, Bengal, Serengeti, Egyptian Mau, Arabian Mau, Maine Coon, and Ocicat breeds. The tabby patterns are due to three distinct gene loci and one modifier: The agouti gene, "A/a", controls whether or not the tabby pattern is expressed. The dominant "A" expresses the underlying tabby pattern, while the recessive non-agouti
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.