Complex sentence: The Curled octopus is taken as bycatch in trawl fisheries for other species but they are also captured in earthenware pots in the Mediterranean, although the fishery for Curled Octopus is less important catch than that of the Common octopus.
Split into simpler sentences: The curled octopus is taken as bycatch in trawl fisheries for other species. It is also captured in earthenware pots in the Mediterranean, although the fishery for curled octopuses is less important than that of the common octopus.