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_18777 | ACROSIN-RELATED |
Hgig_18778 | - |
Hgig_18779 | UNCHARACTERIZED |
Hgig_18780 | - |
Hgig_18781 | PHOSPHATIDYLINOSITOL KINASE |
Hgig_18782 | - |
Hgig_18783 | - |
Hgig_18784 | PDF RECEPTOR-LIKE PROTEIN-RELATED |
Hgig_18785 | PDF RECEPTOR-LIKE PROTEIN-RELATED |
Hgig_18786 | - |
Hgig_18787 | DEOXYRIBONUCLEASE |
Hgig_18788 | CARBOXYLESTERASE |
Hgig_18789 | GAMMA-SECRETASE-ACTIVATING PROTEIN |
Hgig_18790 | GAMMA-SECRETASE-ACTIVATING PROTEIN |
Hgig_18791 | - |
Hgig_18792 | ACROSIN-RELATED |
Hgig_18793 | ACROSIN-RELATED |
Hgig_18794 | RFX TRANSCRIPTION FACTOR FAMILY |
Hgig_18795 | BNIP - RELATED |
Hgig_18796 | - |