Is Greenlings kosher?

About Greenlings

Greenlings (Family Hexagrammidae), Including: Greenlings (Hexagrammos species); Kelp greenling or seatrout (Hexagrammos decagrammus); Lingcod, cultus orblue cod (Ophiodonelongatus); Atkamackerel (Pleurogrammus monopterygius). The rock greenling (Hexagrammos lagocephalus) is a species of marine ray-finned fish belonging to the family Hexagrammidae, the greenlings. It is sometimes known as fringed greenling and erroneously as the red rock trout. The rock greenling (Hexagrammos lagocephalus) is a species of marine ray-finned fish belonging to the family Hexagrammidae, the greenlings. It is sometimes known as fringed greenling and erroneously as the red rock trout. Taxonomy The rock greenling was first formally described in 1810 as Labrax lagocephalus by the German naturalist Peter Simon Pallas with its type locality given as the Kuril Islands. The specific name, lagocephalus, means "harehead", an name not explained by Pallas but may refer to the rounded, rabbit like snout. Appearance The fish is maroon, with blue spot that fades to bright red. The color pattern helps it blend in with its natural environment. It grows to up to 24 in (60 cm) long. Most adult have blue mouths, while the young have bright red eyes. The flesh is also blue in color, but turns into white after cooked. Behavior The species is usually solitary, but not aggressive, which has led to easy husbandry in public aquaria. It is sometimes cryptic, however, and often elusive to divers and spear fishermen, as they prefer living among the rock in the heavy surge. Diet Hexagrammos lagocephalus is a generalized feeder, eating everything from...