Tag

Deep Sea

All articles tagged with #deep sea

science-and-technology12 days ago•4 min saved

Volcanic Warmth Creates Hidden Nursery for Giant Deep-Sea Skate Eggs

Scientists discovered large rectangular eggs of the Pacific white skate at about 3,500 meters beneath an active seafloor volcano off Vancouver Island. The geothermally heated water provides a gentle incubator that can accelerate embryo development in the cold, high-pressure deep sea, potentially shaving years from the lengthy incubation. The finding links volcanism to biodiversity, highlighting conservation needs for geothermal nurseries and offering new questions about how vent activity shapes reproductive success. Researchers used ROVs, high-def imagery, temperature readings, and geochemical data to map the thermal landscape where eggs cluster.

via Iowa Park Leader|

#biodiversity #deep-sea #embryology

science16 days ago•4 min saved

Twenty-four new amphipods, including a new family and superfamily, found in the central Pacific's deep sea

Researchers describe 24 new amphipod species from the central Pacific's Clarion-Clipperton Zone, including a previously unknown family (Mirabestiidae) and a new superfamily (Mirabestioidea), plus two new genera. The work, part of the International Seabed Authority's SSKI One Thousand Reasons initiative, used collaborative taxonomy workshops and produced the first molecular barcodes for several species. The findings underscore the CCZ's largely undocumented biodiversity and suggest that, at current rates, eastern CCZ could be nearly fully cataloged within a decade, highlighting the importance of global collaboration for conservation and policy.

via ScienceDaily|

#amphipods #biodiversity #clarion-clipperton-zone

science18 days ago•7 min saved

Naples Deep-Sea Canyon Reveals Pristine Mediterranean Coral Reef

Scientists have discovered a largely undisturbed deep-sea coral reef in a submerged canyon off Naples, offering a rare glimpse of Mediterranean biodiversity and a baseline for conservation as researchers map the habitat with advanced imaging and ROVs.

via Indian Defence Review|

#biodiversity #conservation #coral-reef

science21 days ago•4 min saved

Deep-Sea Black Cocoons Reveal a New Flatworm Species at 6,200 Meters

At about 6,200 meters in the Pacific, researchers retrieved jet-black, rock-attached spheres that opened to reveal developing flatworms. DNA analysis confirms a previously undescribed species, representing the deepest known record of free-living flatworms, with specimens that resemble shallow-water relatives despite the extreme environment.

via The Daily Galaxy|

#abyssopelagic #deep-sea #flatworms

planet-earth22 days ago•72 min saved

Experts challenge deep-sea 'dark oxygen' claim, call for retracting 2024 study

A 2024 study claimed that deep-sea polymetallic nodules could generate oxygen in total darkness via seawater electrolysis, but a December 2025 opinion article from marine scientists and electrochemists argues the results are flawed and likely artifacts, citing improper chamber ventilation, absence of negative controls, missing hydrogen data, and a thermodynamics violation; the authors defend their work and plan a spring CCZ expedition to test the phenomenon, but many experts say the study should be retracted unless the evidence is revised.

via Live Science|

#dark-oxygen #deep-sea #deep-sea-mining

science28 days ago•13 min saved

Whale Falls Spark Hidden Deep-Sea Ecosystems

When a whale carcass sinks to the deep ocean, it becomes a long-lasting, multi-stage feast: initial scavengers strip flesh, bone‑eating worms (Osedax) and bone‑eating snot‑flowers bore into bone, and later sulphur‑loving chemoautotrophs sustain a thriving community for decades, turning a single whale into a whole new ecosystem and aiding the dispersal of specialized deep‑sea life.

via BBC|

#chemosynthesis #deep-sea #osedax

science1 month ago•6 min saved

Alkaline Leaks From Decades-Old Barrels Persist Off California Coast

Decades-old barrels dumped off Southern California continue leaking caustic, alkaline waste into the San Pedro Basin, creating white halos on the seafloor and pushing local pH to about 12, which alters sediments and microbial life for centuries. A deep-sea survey mapped roughly 58 square miles with about 74,000 debris targets, including ~27,000 barrels; tests show DDT is not the current primary source. Contents remain uncertain, but the ongoing alkaline leaks could persist for thousands of years via mineral crusts like brucite. Cleanup would require robotic operations at depths around 3,000 feet, and EPA surveys are ongoing to inventory sites.

via Indian Defence Review|

#alkaline-leaks #barrels #deep-sea

science1 month ago•34 min saved

Uncharted Deep Sea Reveals Hundreds of Potential New Species

A Nature Ecology and Evolution study of the Clarion-Clipperton Zone found 4,350 seabed wildlife specimens; about 3,826 matched 788 known species, revealing over 500 potential new species and underscoring the ocean floor's hidden biodiversity as deep-sea mining expands, with researchers noting a 37% decline near mining paths and emphasizing the need to predict biodiversity loss and guide more responsible extraction.

via Yahoo|

#biodiversity #clarion-clipperton-zone #deep-sea

science1 month ago•7 min saved

Argentine Deep-Sea Expedition Uncovers Unknown Species and Hidden Coral Realms

A deep-sea expedition off Argentina using the ROV SuBastian and the Falkor revealed nearly thirty species new to science, a vast Bathelia candida coral reef, cold seeps, and a whale fall, highlighting rich but vulnerable ecosystems and the urgency of protecting these little-understood habitats from human impacts.

via Indian Defence Review|

#bathelia-candida #biodiversity #cold-seeps

science1 month ago•16 min saved

Parasitic barnacle hijacks deep-sea sharks in a Norwegian fjord

Earth.com reports that Anelasma squalicola, a barnacle, has evolved into a parasite that pierces lantern sharks in Norway's Sognefjord, feeding directly from host tissue and marking a rare evolutionary shift from plankton-feeding to a blood/tissue-feeding lifestyle. The finding provides a living snapshot of dramatic biological change and raises questions about whether this parasitic relationship could spread to other oceans beyond the fjord.

via Earth.com|

#barnacle #deep-sea #evolution

science1 month ago•4 min saved

Sleeper Shark Surprises Antarctic Scientists With Deep-Sea Sighting

A Minderoo-UWA Deep-Sea Research Centre camera off the South Shetland Islands captured a 3-4 meter sleeper shark at about 490-500 meters depth in near-freezing 1.27°C water, challenging the belief that sharks don’t inhabit the Antarctic Ocean. Researchers say the population there is likely sparse and hard to detect, and warming oceans could drive sharks toward the region, with limited year-round monitoring at that depth leaving room for surprises.

via ScienceAlert|

#antarctic-ocean #antarctica #climate-change

conservation1 month ago•16 min saved

Southern Sleeper Shark Captured Off Antarctica, Redrawing Cold-Water Boundaries

Scientists using an undersea camera recorded the first footage of a southern sleeper shark in Antarctic waters near the South Shetland Islands at about 1,600 feet depth and 2°C. The sighting challenges the assumption that Antarctic seas are too cold for sharks and suggests a warm deeper layer may enable occasional southward incursions; climate-change–related warming could drive more sharks toward the region, but data remain sparse, underscoring the need for further study of the Antarctic ecosystem.

via Gizmodo|

#antarctica #climate-change #conservation

science1 month ago•3 min saved

Rare Sleeper Shark Spotted in Antarctic Deep, Scientists Say

A Minderoo-UWA Deep-Sea Research Centre camera off the South Shetland Islands captured a 3–4 meter sleeper shark at about 490–500 meters depth in near-freezing 1.27°C water, possibly the first confirmed record of a shark that far south in the Antarctic Ocean; researchers note such sightings are rare due to remoteness and limited deep-water cameras, and warming oceans could be nudging species toward Antarctica.

via AP News|

#antarctica #climate-change #deep-sea

science1 month ago•3 min saved

Twilight Zone Fish Unveils Hybrid Photoreceptor, Redefining Vision

Researchers studying deep-sea fish larvae in the mesopelagic 'twilight zone' have found a third photoreceptor that blends cone-like molecular machinery with rod-like shape, a hybrid eye that can detect faint light and bioluminescent signals, challenging 150 years of vision theory that sight relies only on rods and cones. The study, led by Dr. Fabio Cortesi and published in Science Advances, suggests vertebrate vision may involve more than the classic two photoreceptor types.

via The Daily Galaxy|

#deep-sea #hybrid-photoreceptor #mesopelagic

science2 months ago•22 min saved

Giant phantom jellyfish captured in stunning deep-sea footage

Scientists filming off Argentina’s coast with the Schmidt Ocean Institute’s ROV SuBastian captured rare footage of Stygiomedusa gigantea, a schoolbus-sized phantom jellyfish that can reach about 33 feet in length at depths around 820 feet; the deep-sea sighting, notable for its four ribbon-like arms used to snare prey, came amid footage of potential new species and rich reef systems uncovered during the expedition.

via New York Post|

#deep-sea #jellyfish #marine-life