As adjectives the difference between pelagic and benthopelagic
is that pelagic is (biology) living in the open sea rather than in coastal or inland waters while benthopelagic is both benthic and pelagic.
pelagic
English
Adjective
(
en adjective)
(biology) Living in the open sea rather than in coastal or inland waters.
See also
* benthic
* oceanic
* planktonic