Pseudoliparis swirei

Pseudoliparis swirei
Photographs A and B were taken in the wild and C was taken after capture
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Perciformes
Family: Liparidae
Genus: Pseudoliparis
Species:
P. swirei
Binomial name
Pseudoliparis swirei

Pseudoliparis swirei, the Mariana snailfish or Mariana hadal snailfish, is a species of snailfish found at hadal depths in the Mariana Trench in the western Pacific Ocean.[2][3][4][5] It is known from a depth range of 6,198–8,076 m (20,335–26,496 ft),[6] including a capture at 7,966 m (26,135 ft), which is possibly the record for a fish caught on the seafloor.[1][2] Various anatomical, physiological, molecular and genetic adaptions help this species survive in such depths.[5][7]

This pale, tadpole-like fish reaches up to 28.8 cm (11.3 in) in standard length and 160 g (0.35 lb) in weight.[8] It is apparently the top predator along certain stretches of the Mariana Trench, feeding on tiny crustaceans in a deep-water habitat with few larger predators.[4] Pseudoliparis swirei are abundant in their deep-sea habitat and lay relatively large eggs that are almost 1 cm (0.4 in) in diameter.[2]

  1. ^ a b Gerringer, M.E.; T.D. Linley; P.H. Yancey; A.J. Jamieson; E. Goetze; J.C. Drazen (2017). "Pseudoliparis swirei sp. nov.: A newly-discovered hadal snailfish (Scorpaeniformes: Liparidae) from the Mariana Trench". Zootaxa. 4358 (1): 161–177. doi:10.11646/zootaxa.4358.1.7. PMID 29245485.
  2. ^ a b c Welch, Craig (28 November 2017). "New Fish Species Lives 5 Miles Underwater—a Record". National Geographic. Archived from the original on December 1, 2017. Retrieved 29 November 2017.
  3. ^ Irving, Michael (29 November 2017). "New Mariana Trench species is the deepest-dwelling fish in the ocean". New Atlas. Retrieved 29 November 2017.
  4. ^ a b Livni, Ephrat (29 November 2017). "The deepest fish in the sea is much more successful than she looks". Quartz. Retrieved 29 November 2017.
  5. ^ a b Wang, Kun; Shen, Yanjun; Yang, Yongzhi; Gan, Xiaoni; Liu, Guichun; Hu, Kuang; Li, Yongxin; Gao, Zhaoming; Zhu, Li; Yan, Guoyong; He, Lisheng; et al. (2019). "Morphology and genome of a snailfish from the Mariana Trench provide insights into deep-sea adaptation". Nature Ecology & Evolution. 3 (5): 823–833. doi:10.1038/s41559-019-0864-8. PMID 30988486.
  6. ^ Linley, T.D.; M.E. Gerringer; P.H. Yancey; J.C. Drazen; C.L. Weinstock; A.J. Jamieson (2016). "Fishes of the hadal zone including new species, in situ observations and depth records of Liparidae". Deep Sea Research Part I: Oceanographic Research Papers. 114: 99–110. Bibcode:2016DSRI..114...99L. doi:10.1016/j.dsr.2016.05.003.
  7. ^ Jesus, Erin I. Garcia de (2019-04-15). "Snailfish is first animal from extreme ocean depths to get genome sequenced". Nature. doi:10.1038/d41586-019-01158-x. PMID 32284555. S2CID 145894839.
  8. ^ Gerringer, M.E.; A.H. Andrews; G.R. Huus; K. Nagashima; B.N. Popp; T.D. Linley; N.D. Gallo; M.R. Clark; A.J. Jamieson; J.C. Drazen (2017). "Life history of abyssal and hadal fishes from otolith growth zones and oxygen isotopic compositions". Deep Sea Research Part I: Oceanographic Research Papers. 132: 37–50. Bibcode:2018DSRI..132...37G. doi:10.1016/j.dsr.2017.12.002.