Chrysaora fuscescens “Pacific Sea Nettle” Scyphozoa

Oregon Coast Aquarium, Newport, OR
June 12, 2015
Robert Niese

 

The Pacific Sea Nettle is a relatively common sea jelly along North America’s Pacific Coast. They are also commonly kept in captivity due to their relatively simple care and attractive coloration. The tentacles of this species can easily grow up to 5 meters long, but are specialized for capturing small zooplankton and are relatively harmless to humans. These sea nettles have been increasing in abundance along the coasts of Oregon for the past few years. It’s possible that rising global sea temperatures or other anthropogenic changes to the local environment are the cause of this drastic increase in nettle populations.