Acartia Copepod (IMAGE) University of Plymouth Caption Acartia spp, a common copepod in the north east Atlantic, has dropped in abundance by around 50% Credit Russ Hopcroft Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.