Sea raven, Hemitripterus villosus
Sea raven, Hemitripterus villosus          Shelf floor species. Has a rather bright varying color. In September, this interesting fish starts spawning on shallows. It lays roe clusters in cracks between cliffs and, unlike the rock trout, does not guard them. We repeatedly observed Oriental bass pursue sea raven females and their accumulation over roe hatches. It turned out that the roe cover is so hard as to be almost uncrushable with fingers. Yet, divers saw roe being eaten out by the black sea urchin Strongylocentrotus nudus. The sea raven is widespread from the northern part of Japan Sea to the north till Alaska.