Broadbarred king mackerel
Scomberomorus semifasciatus is a Scombride, which is located on the north coast of Australia. In commercial fishing, he is significant in the sport fishing but mainly as bait fish. According to the Red List of endangered species, he is " not threatened ".
Description
The first dorsal fin has 13 to 15 hard jets, the second dorsal fin 19 to 22 soft rays. This is followed by eight to ten Flössel. The anal fin is like the second dorsal fin from 19 to 22 soft rays, followed by seven to ten Flösseln. The caudal fin is large and deeply divided, the pelvic fins very small. Characteristic of this type, the vertical dark banding is in juvenile specimens (hence the synonym " Cybium tigris "), which is pronounced over spot pattern in adult animals. Other features are the large, curved upwards pectoral fins and pointed snout with some extended upper jaw. The body, whose maximum length is 120 centimeters, is spindle - shaped or torpedo. The lateral line runs first straight, then its course drops the second dorsal fin down to the middle of the body from. A swim bladder is absent.
Distribution, habitat and biology
The distribution area of this species is limited to the northern coast of Australia, the southern coast of New Guinea and the southern islands of the Malay Archipelago. Scomberomorus semifasciatus preferred coastal waters, reefs and headlands comes, but occasionally in the open sea before. Sometimes the nature penetrates even before the brackish water. It is primarily found at depths greater than 100 meters. The diet consists mainly of herring -like.