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_21257 | AGAP008810-PA |
Hgig_21258 | CYTOCHROME C OXIDASE SUBUNIT IV |
Hgig_21259 | 3-5 EXONUCLEASE |
Hgig_21260 | DIOXYGENASE RV0097-RELATED |
Hgig_21261 | DNA MISMATCH REPAIR PROTEIN MLH, PMS, MUTL |
Hgig_21262 | METHYLENETETRAHYDROFOLATE REDUCTASE |
Hgig_21263 | INTRAFLAGELLAR TRANSPORT PROTEIN 25 HOMOLOG |
Hgig_21264 | CYSTEINE PROTEASE ATG4 |
Hgig_21265 | CYSTEINE PROTEASE ATG4 |
Hgig_21266 | SOLUTE CARRIER FAMILY 31 COPPER TRANSPORTERS |
Hgig_21267 | NIBRIN-RELATED |
Hgig_21268 | VACUOLAR ATP SYNTHASE SUBUNIT H |
Hgig_21269 | SARCOSINE DEHYDROGENASE-RELATED |
Hgig_21270 | XAA-PRO AMINOPEPTIDASE 1 |
Hgig_21271 | ARSENITE-RESISTANCE PROTEIN 2 |
Hgig_21272 | - |
Hgig_21273 | SET AND MYND DOMAIN-CONTAINING PROTEIN 4 |
Hgig_21274 | - |
Hgig_21275 | SET AND MYND DOMAIN-CONTAINING PROTEIN 4 |
Hgig_21276 | - |