@LazyDays He spent a panel fleeing from her before getting hooked, so it was probably her expression (which has been mentioned in earlier chapters to be really scary when she gets in a mood, especially now that she occasionally considers her fellow fishizens as food first, friends later)
ever since teacher/mom(?) was introduced, i thought she looked too similar to Era. like she has the same eyelines as her(the little three lines under the eyes)