Tag: jellyfish

Jack Dubinsky | Nantucket, MA
Island Science, Nantucket Events

It’s a “No-Brainer”

by Catherine Macallister Purple flags were flying high at Nantucket beaches as summer waters warm up these past few weeks, indicating hazardous marine life in the water. In this case the hazard was jellyfish. These non-vertebrae, no-brained creatures are gelatinous zooplankton, and they happen to be the topic for an […]

Bioluminescence | Nantucket Field Station | MA
Island Science

Nature’s Living Light Show, Bioluminescence

• by Dr. Sarah Oktay, Director, University of Massachusetts Nantucket Field Station • Bioluminescence is the creation of light by a chemical reaction by a creature. One of the many benefits of living on Nantucket is that we get to experience bioluminescence from many sources, not the least of which […]

Portuguese Man o' War
Island Science

Bluebottle Washashore-Portuguese Man o’ War

• by Dr. Sarah D. Oktay, Managing Director UMass Boston Nantucket Field Station • As a washashore myself, I hope I am a little more welcome than this week’s creature. Two weeks ago, two Clean Team volunteers helping out on a Madaket Beach clean-up (www.ackcleanteam.org) came upon a relatively common […]

Island Science

Dangerous Beauties – Jellyfish

by Dr. Sarah D. Oktay Managing Director UMass Boston Nantucket Field Station As the summer temperatures warm up our harbor and offshore waters, floating translucent creatures begin to crowd our shores and become a concern for swimmers.  Unfortunately, as ocean waters warm world-wide and we continue to over-fish or endanger […]