Hirondellea gigas is a species of amphipod crustacean found in the hadal zone of the Pacific Ocean, particularly in the Mariana Trench. It is adapted to extreme deep-sea environments, living at depths exceeding 10,000 meters where pressures are immense and temperatures are near freezing. This species feeds on organic matter that sinks to the ocean floor, playing a crucial role in the deep-sea ecosystem as a scavenger. Its unique adaptations, such as a lightweight exoskeleton and specialized enzymes, allow it to survive and thrive in one of the most extreme habitats on Earth.
Animalia (Kingdom); Arthropoda (Phylum); Crustacea (Subphylum); Multicrustacea (Superclass); Malacostraca (Class); Eumalacostraca (Subclass); Peracarida (Superorder); Amphipoda (Order); Amphilochidea (Suborder); Lysianassida (Infraorder); Lysianassidira (Parvorder); Lysianassoidea (Superfamily); Hirondelleidae (Family); Hirondellea (Genus); Hirondellea gigas (Species)
Tetronychia gigas Birstein & M. Vinogradov, 1955
1. Birstein J A, Vinogradov M E. Pelagicheskie gammaridy (Amphipoda, Gammaridea) Kurilo-Kamchatskoi Vpadiny[J]. Akademiya Nauk SSSR, Trudy Instituta Okeanologii, 1955, 12: 219-257. (Birstein et al., 1955)
Philippine Trench from Philippine Sea, Mariana Trench from North Pacific Ocean and Kuril-Kamchatka Trench
Species | Phylum | Common Name | Ecosystem | Depth | Habitat | NCBI Taxonomy ID |
---|---|---|---|---|---|---|
Hirondellea gigas | Arthropoda | - | Deep sea | 6,800-11,000 | Mariana Trench in the northwestern Pacific Ocean | 1518452 |
Genome Assembly | Genome Size | Assembly level | Released year | WGS accession | Submitter | BioProject | BUSCO completeness (%) | Scaffold/Contig N50 (kb) | GC content (%) | Repeat Rate (%) | Gene Number |
---|---|---|---|---|---|---|---|---|---|---|---|
- | 13.92Gb | Chromosome | 2025 | CNA0142381 | - | CNP0005374 | 89.34 | 458,700/466.1 | 38.8 | 72.75 | 27,881 |
Title | Journal | Pubmed ID |
---|---|---|
The amphipod genome reveals population dynamics and adaptations to hadal environment | Cell | 40054448 |
Gene ID | Description |
---|---|
Hgig_16897 | MAP/MICROTUBULE AFFINITY-REGULATING KINASE |
Hgig_16898 | |
Hgig_16899 | TAZ PROTEIN TAFAZZIN |
Hgig_16900 | TRANSPOSON |
Hgig_16901 | |
Hgig_16902 | LP10445P |
Hgig_16903 | SERINE PROTEASE-RELATED |
Hgig_16904 | REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN |
Hgig_16905 | SET1/ASH2 HISTONE METHYLTRANSFERASE COMPLEX SUBUNIT ASH2 |
Hgig_16906 | |
Hgig_16907 | |
Hgig_16908 | 3-DEOXY-D-MANNO-OCTULOSONIC-ACID TRANSFERASE/TRNA GUANINE-N 7 - -METHYLTRANSFERASE |
Hgig_16909 | 3-DEOXY-D-MANNO-OCTULOSONIC-ACID TRANSFERASE/TRNA GUANINE-N 7 - -METHYLTRANSFERASE |
Hgig_16910 | |
Hgig_16911 | |
Hgig_16912 | |
Hgig_16913 | |
Hgig_16914 | UDP-N-ACETYLGLUCOSAMINE--DOLICHYL-PHOSPHATE N-ACETYLGLUCOSAMINEPHOSPHOTRANSFERASE |
Hgig_16915 | HISTONE H2A |
Hgig_16916 | |
Hgig_16917 | SOLUTE CARRIER PROTEIN FAMILY 11 MEMBER |
Hgig_16918 | |
Hgig_16919 | SHISA |
Hgig_16920 | |
Hgig_16921 | |
Hgig_16922 | |
Hgig_16923 | SERINE PROTEASE-RELATED |
Hgig_16924 | SERINE PROTEASE-RELATED |
Hgig_16925 | METAXIN RELATED |
Hgig_16926 | |
Hgig_16927 | |
Hgig_16928 | CALCIUM-ACTIVATED POTASSIUM CHANNEL ALPHA CHAIN |
Hgig_16929 | CALCIUM-ACTIVATED POTASSIUM CHANNEL ALPHA CHAIN |
Hgig_16930 | |
Hgig_16931 | |
Hgig_16932 | CALCIUM-ACTIVATED POTASSIUM CHANNEL ALPHA CHAIN |
Hgig_16933 | PROTEIN CBG20824 |
Hgig_16934 | |
Hgig_16935 | |
Hgig_16936 | |
Hgig_16937 | |
Hgig_16938 | |
Hgig_16939 | UNCHARACTERIZED |
Hgig_16940 | RAN BINDING PROTEIN |
Hgig_16941 | |
Hgig_16942 | TRANSPOSABLE ELEMENT TC3 TRANSPOSASE-LIKE PROTEIN |
Hgig_16943 | 1-ACYLGLYCEROL-3-PHOSPHATE ACYLTRANSFERASE-RELATED |
Hgig_16944 | BICOID-INTERACTING PROTEIN RELATED |
Hgig_16945 | SLIT RELATED LEUCINE-RICH REPEAT NEURONAL PROTEIN |
Hgig_16946 | ANTIGEN BSP, PUTATIVE-RELATED |