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Black goby
The black goby (''Gobius niger'') is a species of ray-finned fish found in the Eastern Atlantic and Mediterranean Sea and Black Sea. It inhabits estuaries, lagoons, and inshore water over seagrass and algae. It feeds on a variety of invertebrates and sometimes small fish. This species can also be found in the aquarium trade.〔
This fish reaches a maximum length of TL. This fish's neck is scaled and both of its dorsal fins have a black spot on the front end.
==Description==
The black goby is deeper-bodied than the common goby, sand goby and two-spotted goby with a more rounded snout and generally a larger size. It has two dorsal fins that are almost continuous, the anterior one having six spines, which may project from the fin membrane, and the posterior and shorter one having soft rays. The posterior dorsal fin terminates close to the caudal peduncle in contrast to the common and sand gobies where there is a long gap. The pelvic fins are fused. The colour is some shade of dark brown with indistinct black blotches. The colour of the male becomes almost black during the breeding season and his fins become more vivid. The average size of this fish is about 〔(【引用サイトリンク】title=Black goby: ''Gobius niger'' (L.) )〕
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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