Bathochordaeus, the giant larvaceans, is a genus of larvacean tunicates in the family Oikopleuridae. They are free-swimming filter-feeding marine animals that build mucus bubbles. They eat tiny particles of dead or drifting organic material that float through the water column, which contribute to the oceanic carbon cycle and the accelerated transfer of carbon to the deep sea.[2]
| Bathochordaeus | |
|---|---|
| |
| Bathochordaeus charon (A to C) and B. stygius (E to F) | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Subphylum: | Tunicata |
| Class: | Appendicularia |
| Order: | Copelata |
| Family: | Oikopleuridae |
| Subfamily: | Bathochordaeinae |
| Genus: | Bathochordaeus Chun, 1900[1] |
| Species | |
| |
Description
editThey are much larger than other genera of larvaceans, ranging from 3 to 10 centimeters in total length, with houses reaching more than 1 meter in diameter.[3]
Distribution
editGiant larvaceans are widespread through the planet's oceans, being found in the North and South Pacific Ocean, the North and South Atlantic Ocean, and the Indian Ocean. Three species have been described, Bathochordaeus charon, B. mcnutti and B. stygius, all of them found in Monterey Bay.[3]
References
edit- ^ Chun C. Aus den Tiefen des Weltmeeres. Jena: Gustav Fischer; 1900. pages 519–521
- ^ Sherlock, R. E.; Walz, K. R.; Robison, B. H. (2016-08-30). "The first definitive record of the giant larvacean, Bathochordaeus charon, since its original description in 1900 and a range extension to the northeast Pacific Ocean". Marine Biodiversity Records. 9 (1): 79. Bibcode:2016MBdR....9...79S. doi:10.1186/s41200-016-0075-9. ISSN 1755-2672.
- ^ a b Katija, Kakani; Sherlock, Rob E.; Sherman, Alana D.; Robison, Bruce H. (16 Aug 2017). "New technology reveals the role of giant larvaceans in oceanic carbon cycling". Science Advances. 3 (8). Bibcode:2017SciA....3E2374K. doi:10.1126/sciadv.1602374. PMC 5415331. PMID 28508058. S2CID 23179771.
External links
edit
- Bathochordaeus at WoRMS
- Youtube video of living animal
- van der Land, J. (2001). Appendicularia, in: Costello, M.J. et al. (Ed.) (2001). European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels, 50: pp. 356
- Fenaux, R., Q. Bone, and D. Deibel. 1998. Appendicularian distribution and zoogeography, p. 251-264. In q. Bone [ed.], The biology of pelagic tunicates. Oxford University Press
- Sherlock, R.E., Walz, K.R., Schlining, K.L. et al.: Morphology, ecology, and molecular biology of a new species of giant larvacean in the eastern North Pacific: Bathochordaeus mcnutti sp. nov.; in: Mar Biol 164, 20 (2017); doi:10.1007/s00227-016-3046-0
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