2024----Institute of Deep-sea Science and Engineering,CAS

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2024

2024
2023

Progress in the Research on the Circulation Dynamics of the Challenger Deep

Based on the 10000-meter-class hadal mooring observation array, this research discovered for the first time the three-layer circulation structure in the deep layer of the Challenger Deepand revealed the mechanism driving the circulation structure.
Nov 17,2024
Species diversity and critical habitats of offshore and deep-diving cetaceans in the South China Sea

The study analyzed the data from six South China Sea deep-diving/remote-sea cetacean research cruises carried out from 2019 to 2023, providing key information on the distribution, species composition, relative abundance.
Nov 07,2024
Researchers Advance Ideas on Abiotic Organic Synthesis

Recently, a research team led by Dr. PENG xiaotong reported the discovery of abiotic organic compounds in the oceanic crust of the Southwest Indian Ridge and proposed a molecular mechanism for organic condensation.
Oct 23,2024
Identification of the enigmatic Deraniyagala’s beaked whale

The study identifies one of the least known beaked whales——Deraniyagala 's beaked whale (Mesoplodon hotaula) , suggesting that the South China Sea is a potentially important area for M. hotaula.
Oct 19,2024
Breakthrough in Green Technology: Researchers Develop Hydrate-Based Method for SF6 Sequestration

Sulfur hexafluoride (SF6), a potent greenhouse gas with a global warming potential 23,900 times that of carbon dioxide, has seen its emissions steadily rise over time. In response to this environmental challenge, researchers have proposed an innovative solution: hydrate-based technology for SF6 sequestration.
Oct 19,2024
New perspectives on deep-sea anemones' adaptation to extreme hydrothermal environments

Recently, the group of Haibin Zhang published a research article titled "Genetic adaptations of sea anemone to hydrothermal environment" in Science Advances (TOP). This study has deciphered the chromosome-level genome of the deep-sea anemone Alvinactis idsseensis sp. nov., which inhabits the hydrothermal vents of the Central Indian Ridge (Edmond). The results elucidate the survival mechanisms of anemones in the extreme environment of deep-sea hydrothermal vents.
Sep 25,2024
Progress in the Research on the dynamics of the summer counter-wind current along the south Sri Lanka coast

Recently, the research team led by Research Fellow Hongzhou Xu from the Laboratory of Ocean Circulation Observing and Modeling (LOCOM) published a research paper titled “Dynamics of the summer counter-wind current along south Sri Lanka coast 1: the dominant role of intra-seasonal variability” in the international journal “Journal of Geophysical Research: Oceans”. Based on Argo float and CMEMS reanalysis data, this research verified the existence of abnormal westward south Sri Lanka coastal current (SSLCC) during summer, and revealed the dynamics mechanism driving this counter-wind current. This research finding has important significance for understanding the circulation around Sri Lanka. Dr. Hongyu Xin is the first author of the paper, Research Fellow Weiqiang Wang from South China Sea Institute of Oceanography is the corresponding author, Research Fellow Qiang Xie, Professor Weiqing Han from University of Colorado, Associate Researcher Ke Huang and Research Fellow Kang Xu from South China Sea Institute of Oceanography are the collaborating author.
Sep 12,2024
From land to sea: Unique evolution in marine mammal reproductive strategies

Recently, a paper titled From land to sea: Unique evolution in reproductive strategies of marine mammals, with Jun Liu as the first author and Prof. Peijun Zhang as the corresponding author from the Marine Mammal and Marine Bioacoustics Laboratory, was published in the international academic journal The Innovation Life. This study summarizes the unique reproductive strategies and adaptive evolution of marine mammals, revealing complex evolutionary innovations in morphology, physiology, and behavior that these animals have developed in response to new aquatic environments during their transition from terrestrial to marine habitats, such as embryonic diapause, high-energy milk, and testicular cooling systems. The study also emphasizes that the unique reproductive strategies of marine mammals are the result of adapting to marine environmental challenges and points out that in the era of advancing omics technologies, developing international data and technology cooperation and sharing will provide new research pathways for uncovering the genetic basis of these reproductive innovations, which is significant for species conservation.
Aug 19,2024
Wild and captive spotted dolphins have distinct gastrointestinal microbiota

A study titled Similarities and Differences in Gastrointestinal Microbiomes Between Wild and Human-Cared Spotted Dolphins (Stenella attenuata) in Natural Waters, published in the journal Water Biology and Security, with Shijie Bai, an associate Prof. from the Institute of Deep-sea Science and Engineering, Chinese Academy of Sciences as the first author, and Peijun Zhang and Songhai Li as corresponding authors, emphasizes that differences in food sources are a significant factor affecting the composition of the gut microbial communities of spotted dolphins living in similar environments.
Jul 06,2024
Sirenian genomes illuminate the evolution of fully aquatic species within the mammalian superorder Afrotheria

Sirenian genomes illuminate the evolution of fully aquatic species within the mammalian superorder Afrotheria. Dozens of sirenian species have existed in the past, but unlike cetaceans (about 90 extant species) and pinnipeds (about 30 extant species), sirenians are today far less diverse. There are four extant sirenian species: the dugong (Dugong dugon) of the family Dugongidae (included the Steller’s sea cow, Hydrodamalis gigas, that became extinct about 250 years ago) and manatees (family Trichechidae: the West Indian manatee, Trichechus manatus (includes the subspecies Florida manatee, T. m. latirostris, and Antillean manatee, T. m. manatus); the Amazonian manatee, T. inunguis; and the African manatee, T. senegalensis). The dugong and manatees have been found in distinct tropical and subtropical habitats since the middle Miocene (~12.2 Mya). The dugong originally dispersed into the Pacific from near Florida, and today inhabits the coastlines of the Indo-Pacific oceans, while the three species of manatee occupy the Atlantic Ocean and associated rivers.
Jul 02,2024

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