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_16097 | |
Hgig_16098 | VOLTAGE-GATED CATION CHANNEL CALCIUM AND SODIUM |
Hgig_16099 | |
Hgig_16100 | |
Hgig_16101 | |
Hgig_16102 | |
Hgig_16103 | |
Hgig_16104 | PHOSPHATASE WITH HOMOLOGY TO TENSIN |
Hgig_16105 | IONOTROPIC RECEPTOR 20A-RELATED |
Hgig_16106 | NUCLEAR EXPORT MEDIATOR FACTOR NEMF |
Hgig_16107 | |
Hgig_16108 | TRANSPOSON |
Hgig_16109 | |
Hgig_16110 | MITOGEN-ACTIVATED PROTEIN KINASE |
Hgig_16111 | NUCLEOLAR PROTEIN 7/ESTROGEN RECEPTOR COACTIVATOR-RELATED |
Hgig_16112 | |
Hgig_16113 | |
Hgig_16114 | |
Hgig_16115 | |
Hgig_16116 | LYSOZYME C |
Hgig_16117 | |
Hgig_16118 | UNCHARACTERIZED |
Hgig_16119 | AGAP001705-PA |
Hgig_16120 | |
Hgig_16121 | METALLOPROTEASE |
Hgig_16122 | IP01015P-RELATED |
Hgig_16123 | |
Hgig_16124 | 1-PHOSPHATIDYLINOSITOL 3-PHOSPHATE 5-KINASE |
Hgig_16125 | |
Hgig_16126 | |
Hgig_16127 | CELLULAR TUMOR ANTIGEN P53 |
Hgig_16128 | |
Hgig_16129 | |
Hgig_16130 | PROTEIN-GLUTAMINE GAMMA-GLUTAMYLTRANSFERASE |
Hgig_16131 | DISCOIDIN, CUB, EGF, LAMININ , AND ZINC METALLOPROTEASE DOMAIN CONTAINING |
Hgig_16132 | DISCOIDIN, CUB, EGF, LAMININ , AND ZINC METALLOPROTEASE DOMAIN CONTAINING |
Hgig_16133 | |
Hgig_16134 | RETINAL ROD RHODOPSIN-SENSITIVE CGMP 3',5'-CYCLIC PHOSPHODIESTERASE DELTA-SUBUNIT |
Hgig_16135 | |
Hgig_16136 | |
Hgig_16137 | GPI TRANSAMIDASE COMPONENT PIG-T-RELATED |
Hgig_16138 | |
Hgig_16139 | GPI TRANSAMIDASE COMPONENT PIG-T-RELATED |
Hgig_16140 | |
Hgig_16141 | ENDO/EXONUCLEASE/PHOSPHATASE DOMAIN-CONTAINING PROTEIN |
Hgig_16142 | UNCHARACTERIZED |
Hgig_16143 | |
Hgig_16144 | AGAP005329-PA |
Hgig_16145 | NADPH NITROREDUCTASE |
Hgig_16146 | 5-HYDROXYTRYPTAMINE RECEPTOR |