Jellies are survivors

Published May 13, 2009

pacific-sea-nettleOne of the reasons Jellies are invading the oceans is because they can survive environmental changes that have negatively affected other forms of sea life. Did you know jellies have survived for over 500 million years?!They were here even before dinosaurs. The key to this survival is their ability to adapt and thrive to changes in the environment. Jellies appear to be better able to survive in polluted water than other forms of aquatic life. Runoff  may be a cause for increases in jellies populations. Excess fertilizer from our yards runs into our waterways fueling algae blooms and the creation of low oxygen “dead zones” in the Bay and in the ocean.  Jellies are able to survive and thrive in these degraded water conditions. Historically, West coast sea nettles were common in California waters, but in recent years they have been seen in even greater numbers and can be seen from Mexico to British Columbia. Their populations are fed by exploding algae blooms, which are fueled by increased pollution and runoff from land. And because colonies of sea nettles consume countless fish larvae and other planktonic species, they play a critical role in marine food chains.  Take a look at some of the Sea Nettles featured in Jellies Invasion:
Previous Post

Featured Stories

Snapping turtle and red-eared sliders Floating Wetland Update: Turtles, Fish and Birds!

Several new species have been spotted on the National Aquarium’s floating wetland prototype in the Inner Harbor!

Read the full story

Edwin Hubble and George Washington Carver Animal Rescue Update: Double Seal Release!

For the first time in its history, National Aquarium Animal Rescue simultaneously released two rehabilitated seals. The two male greys, nicknamed Edwin Hubble and George Washington Carver, were released in Ocean City, Maryland, on May 23.

Read the full story

Related Stories

Species Spotlight: Flower Hat Jellies

Published July 06, 2018

Animal Update: Mediterranean Jellies

Published April 04, 2018