sentence: Spiny dogfish are benthopelagic, meaning that they are found just above the bottom of the ocean.
sentences_after: They are found from the surface to depths as deep as 1,460 metres. They are often found in enclosed bays and estuaries. They have been reported to enter freshwater but cannot survive there for more than a few hours.
concept_name: spiny dogfish
headings: Spiny dogfish shark Habitat
categories: Sharks