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The supergiant amphipod Alicella gigantea may inhabit over half of the world’s oceans [PDF]

Royal Society Open Science
The deep-sea amphipod Alicella gigantea Chevreux, 1899, currently known as the world’s largest amphipod, inhabits depths of the lower abyssal and upper hadal zones. Historically, it has been sampled or observed in situ infrequently relative to other deep-
Paige J. Maroni, Yakufu Niyazi, Alan Jamieson   +2 more
doaj   +2 more sources

Reduced Antarctic Bottom Water overturning rate during the early last deglaciation inferred from radiocarbon records [PDF]

Nature Communications
The rapid CO2 rise during the early deglaciation is often linked to enhanced ventilation by intensified Antarctic Bottom Water (AABW) overturning.
Sifan Gu, Zhengyu Liu, Ning Zhao, Tianyu Chen, Jimin Yu, Jiaxu Zhang, Chengfei He, Sang Chen, Zhaoru Zhang, Lingwei Li, Alexandra Jahn   +10 more
doaj   +2 more sources

The ocean flows downhill near the seafloor and recirculates upward above [PDF]

Nature Communications
The ocean’s circulation redistributes heat, salt, biota, dissolved gases, microplastics, and sediments on Earth. The abyssal ocean, in the lowest 1000 m above the seafloor, moves on average with the deeper seafloor to its left in the Northern Hemisphere ...
René Schubert, Jonathan Gula, Esther Capó, Pierre Damien, M. Jeroen Molemaker, Clément Vic, James C. McWilliams   +6 more
doaj   +2 more sources

Three new deep-sea species of Thyasiridae (Mollusca: Bivalvia) from the northwestern Pacific Ocean

European Journal of Taxonomy, 2023
The Thyasiridae is one of the species-richest families in the abyssal and hadal zones of the northwestern Pacific Ocean. Many thyasirid species dominate benthic communities in terms of abundance and play an important role in the functioning of deep-sea ...
Gennady M. Kamenev
doaj   +1 more source

New deep-sea Atlantic and Antarctic species of Abyssorchomene De Broyer, 1984 (Amphipoda, Lysianassoidea, Uristidae) with a redescription of A. abyssorum (Stebbing, 1888)

European Journal of Taxonomy, 2022
During the Census of Marine Life Polarstern ANDEEP I-III and Meteor M79/1 DIVA-3 expeditions, autonomous baited trap systems were employed to sample the mobile, necrophagous amphipods from abyssal depths.
Ed A. Hendrycks, Claude De Broyer
doaj   +1 more source

Microbial Associations of Abyssal Gorgonians and Anemones (>4,000 m Depth) at the Clarion-Clipperton Fracture Zone

Frontiers in Microbiology, 2022
Deep coral-dominated communities play paramount roles in benthic environments by increasing their complexity and biodiversity. Coral-associated microbes are crucial to maintain fitness and homeostasis at the holobiont level.
Elena Quintanilla, Clara F. Rodrigues, Isabel Henriques, Isabel Henriques, Ana Hilário   +4 more
doaj   +1 more source

Regional Variation in Communities of Demersal Fishes and Scavengers Across the CCZ and Pacific Ocean

Frontiers in Marine Science, 2021
We synthesize and analyze data from visual transecting approaches and baited camera studies to evaluate fish and invertebrate scavenger communities across the Clarion-Clipperton Zone (CCZ), an area of intense deep-sea mining interest, and neighboring ...
Jeffrey C. Drazen, Astrid B. Leitner, Astrid B. Leitner, Daniel O. B. Jones, Erik Simon-Lledó   +4 more
doaj   +1 more source

Testing the Seamount Refuge Hypothesis for Predators and Scavengers in the Western Clarion-Clipperton Zone

Frontiers in Marine Science, 2021
Seamounts are common in all ocean basins, and most have summit depths >3,000 m. Nonetheless, these abyssal seamounts are the least sampled and understood seamount habitats.
Astrid B. Leitner, Astrid B. Leitner, Jeffrey C. Drazen, Craig R. Smith   +3 more
doaj   +1 more source

Investigation of Deep-Sea Ecosystems Using Marker Fatty Acids: Sources of Essential Polyunsaturated Fatty Acids in Abyssal Megafauna

Marine Drugs, 2021
Abyssal seafloor ecosystems cover more than 50% of the Earth’s surface. Being formed by mainly heterotrophic organisms, they depend on the flux of particulate organic matter (POM) photosynthetically produced in the surface layer of the ocean.
Vasily I. Svetashev
doaj   +1 more source

DNA Barcoding of Scavenging Amphipod Communities at Active and Inactive Hydrothermal Vents in the Indian Ocean

Frontiers in Marine Science, 2022
Hydrothermal vent areas have drawn increasing interest since they were discovered in 1977. Because of chemoautotrophic bacteria, they possess high abundances of vent endemic species as well as many non-vent species around the fields.
Katharina Kniesz, Katharina Kniesz, Anna Maria Jażdżewska, Pedro Martínez Arbizu, Pedro Martínez Arbizu, Terue Cristina Kihara   +5 more
doaj   +1 more source