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Relicanthus Daphneae

All articles tagged with #relicanthus daphneae

science3 hours ago•39 min saved

Deep-Sea Gold: Orb Turned Out to Be Anemone Tissue

A glowing four-inch orb found on the Gulf of Alaska seafloor during NOAA’s 2023 Seascape Alaska expedition was identified through later genetic testing as a piece of tissue from Relicanthus daphneae, a rare deep-sea giant sea anemone. The discovery concluded that the orb wasn’t an egg or new species but dead cells at the base of the anemone, underscoring the deep ocean’s ongoing mysteries and the subtle process of tissue shedding that can leave behind such glowing relics.

via Yahoo|

#deep-sea #dna-sequencing #golden-orb

science8 hours ago•4 min saved

Gulf of Alaska’s golden orb traced to a giant deep-sea anemone relic

NOAA and the Smithsonian have identified the 2023-found 'golden orb' in the Gulf of Alaska as a remnant of Relicanthus daphneae, a rarely seen giant deep-sea anemone, specifically the anchoring base attached to rock. The fibrous, stinging-cell mass initially puzzled scientists, but multidisciplinary analysis confirmed its cnidarian origin and linked it to the same species observed in the Mariana Islands, highlighting ongoing deep-sea mysteries revealed by expeditions like Seascape Alaska 5.

via Fox News|

#deep-sea #discovery #noaa

science13 hours ago•3 min saved

Deep-Sea Golden Orb Finally Identified as Giant Sea Anemone Remnant

NOAA researchers solved the mystery of a two-mile-deep golden orb off Alaska, determining it is a fibrous, stinging-celled cnidarian remnant of a giant sea anemone Relicanthus daphneae; genome sequencing shows it is nearly identical to a 2021 specimen, suggesting the top of the anemone died or moved, leaving the orb attached to the rock.

via CBS News|

#deep-sea #giant-sea-anemone #golden-orb

science17 hours ago•6 min saved

Deep-Sea Golden Orb Turns Out to Be Anemone Skin Left Behind by Relicanthus daphneae

A 10 cm golden orb found at 3,250 meters depth in the Gulf of Alaska was identified as a shed cuticle from Relicanthus daphneae, a deep-sea anemone, not an egg case. Genomic sequencing linked it to the species, revealing the orb is a chitin-rich cuticle that the animal may leave behind during movement or incomplete asexual reproduction (pedal laceration). The discovery also notes the cuticle hosts microbes, suggesting a micro-scale hotspot on the seafloor and offering clues about deep-sea biology and reproduction.

via ScienceAlert|

#cnidarian #cuticle #deep-sea

science1 day ago•7 min saved

Golden Orb Mystery Solved: Remnant of a Giant Deep-Sea Anemone Identified

Scientists have solved the two-year mystery of the Gulf of Alaska’s “golden orb,” identifying it as a remnant of the base of the giant deep-sea anemone Relicanthus daphneae. Using morphological analysis and whole-genome sequencing (since initial DNA barcoding was inconclusive), researchers confirmed animal DNA matching Relicanthus daphneae and linked the orb to the rock-attached base of the creature. The specimen has been accessioned into the Smithsonian NMNH collection, illustrating how advanced genomic methods help unveil deep-sea mysteries.

via NOAA (.gov)|

#deep-sea #dna-sequencing #golden-orb