Hexagrammos
Kelpgrünling ( Hexagrammos decagrammus ), female.
Hexagrammos is a genus of fish from the group of relatives Gropp ( Cottales ). The species of the genus live near the coast in the northern Pacific from the Yellow Sea, Japan, Korea and the Kuril Islands on the Sea of Okhotsk, Kamchatka, the Bering Sea and Aleutian Islands to southern California.
Features
Hexagrammos species are elongated fish that can reach a length of 30 to 61 cm. Her head is without major bony ridges and spines. It is covered by ctenoid scales. The continuous dorsal fin is divided by a recess in a front and a rear soft-rayed part hartstrahligen. The anal fin is without spines. The caudal fin rounded ends. The number of vertebrae is 47 to 57 The fish have five lateral lines, the first and second run close together just below the midline of the back, third from the top of the gill cover to the mid- caudal pedicle. The fourth side line is located on the ventral side and starts below the pectoral fin base. You can be short and gentle underneath the belly fin base or extend to the tail fin shaft. The fifth line starts on the side of the center line of the groove and is divided front of the anus. Only Hexagrammos agrammus ( subgenus Agrammus ) has a single lateral line. Hexagrammos species are usually brownish in color and patterned with all kinds of color, dark or light spots or dots.
Way of life
Hexagrammos species live mainly in shallow water below the intertidal zone on rocks and on the seabed, which are overgrown by algae or seaweeds. Some species go to depths of 600 meters. They feed on Vielborstern, crustaceans, mussels, snails and small fish. At the breeding season the males form territories. The value stored in a bale and stapled to a substrate spawning is guarded by the male.
Species
- Subgenus Agrammus Hexagrammos agrammus ( Temminck & Schlegel, 1843).
- Kelpgrünling ( Hexagrammos decagrammus ) ( Pallas, 1810).
- Hexagrammos Lagocephalus ( Pallas, 1810).
- Hexagrammos octogrammus ( Pallas, 1814).
- Hexagrammos otakii ( Jordan & Starks, 1895)
- Whitespotted Greenfinch ( Hexagrammos stelleri ) ( Tilesius, 1810)