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_00096 | - |
Hgig_00097 | TRYPTOPHAN 2,3-DIOXYGENASE |
Hgig_00098 | MEMBRANE-ASSOCIATED PROGESTERONE RECEPTOR COMPONENT-RELATED |
Hgig_00099 | - |
Hgig_00100 | - |
Hgig_00101 | SGT1 PROTEIN HSGT1 SUPPRESSOR OF GCR2 |
Hgig_00102 | TRANSCRIPTION INITIATION FACTOR IIE, ALPHA SUBUNIT |
Hgig_00103 | - |
Hgig_00104 | PRE-MRNA PROCESSING PROTEIN PRP39-RELATED |
Hgig_00105 | - |
Hgig_00106 | - |
Hgig_00107 | - |
Hgig_00108 | - |
Hgig_00109 | E3 UBIQUITIN-PROTEIN LIGASE TRIM36-RELATED |
Hgig_00110 | - |
Hgig_00111 | SI:CH211-266K2.1 |
Hgig_00112 | CYCLIC NUCLEOTIDE PHOSPHODIESTERASE |
Hgig_00113 | 2-OXOGLUTARATE (2OG) AND FE(II)-DEPENDENT OXYGENASE SUPERFAMILY PROTEIN-RELATED |
Hgig_00114 | 2-OXOGLUTARATE (2OG) AND FE(II)-DEPENDENT OXYGENASE SUPERFAMILY PROTEIN-RELATED |
Hgig_00115 | SERINE PROTEASE-RELATED |