Basically solitary rather than a schooling fish. They exhibit a homing instinct (Ref. 9737). Adults inhabit rocky bottoms but may occur among floating seaweed. They migrate considerable distances in an annual cycle between deeper waters in winter and shallower waters in summer (Ref. 26141). Maximum depth reported at 868 m (Ref. 58426). Epibenthic-pelagic (Ref. 58426). Juveniles are found among algal clumps in bays and fjords moving offshore as they mature (Ref. 96431). During the spawning season the males become reddish in color on the underside, whereas females turn blue-green. Adults feed on ctenophores, medusas, small crustaceans, polychaetes, jelly fish and small fishes. Valued for their eggs, which make an inexpensive caviar (Ref. 9988). Eaten in Nordic countries, marketed fresh or smoked. Male flesh is most demanded and roe is sold fresh (Ref. 35388).
基本上独居性而不是一个群游性鱼。 展现归巢的本能.(参考文献 9737) 栖息于岩石底部但是可能出现在漂浮的海草之中。 在夏天在较深的水域冬天时和较水浅的水域之间的一个一年一次的周期回游相当多的距离。 (参考文献 26141) 在产卵季节的时候,雄鱼在下面上变成淡红颜色, 然而母鱼是蓝绿色。 吃栉水母,水母,小型甲壳动物,多毛类动物,水母与小鱼。 重要的是他们的卵了, 制造一个便宜的鱼子酱.(参考文献 9988) 在被在市场上销售新鲜或熏制的北欧人的国家被吃。 雄性肉是需求最多,而且鱼白生鲜地被卖。 (参考文献 35388)