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Round sardinella
The round sardinella (''Sardinella aurita'') is a species of ray-finned fish in the genus ''Sardinella'' found in both sides of the Atlantic Ocean and the Mediterranean Sea.
''S. aurita'' went through a large boom in catch population around 1990. However, its numbers have been very stable through the last several years.
''S. aurita'' inhabits warm waters. It is a small, pelagic species that lives in tropical and subtropical waters of the western and eastern Atlantic Ocean, the Pacific Ocean, the Mediterranean, and occasionally, the Black Sea. The gonads start to develop in April and are fully mature one month later. Plankton in spawning regions are full of eggs and larvae from the end of June into September.
==Diagnostic features==
''Sardinella aurita'' has a particularly elongated body, a relatively rounded belly, and a large number of fine gill rakers (up to 160). This is one of the largest ''Sardinella'' species, averaging 23 to 28cm. It has eight pelvic fin rays. It has frontoparietal stripes on the top of its head, a faint golden midlateral line, and a distinctive black spot on the hind border of the gill cover. It is often caught along with ''Sardinella longiceps'', and the two are not easily distinguished.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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