Longfin smooth-head
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Alepocephaliformes
Family: Alepocephalidae
Genus: Conocara
Species:
C. macropterum
Binomial name
Conocara macropterum
(Vaillant, 1888)
Synonyms[2]
  • Alepocephalus macropterus (Vaillant, 1888)
  • Conocara macdonaldi (Goode & Bean, 1896)
  • Conocara macroptera (Vaillant, 1888)
  • Conocara mcdonaldi (Goode & Bean, 1896)

The longfin smooth-head (Conocara macropterum) is a species of fish in the family Alepocephalidae.[3][4][5]

Description

Drawing of Conocara macropterum.

The longfin smooth-head is pale brown to black in colour; its name derives from its anal fin, which has a long base and 35–39 finrays. Its maximum length is 34 centimetres (13 in).[6] They grow rapidly from infancy; few juveniles of intermediate size are found.[7]

Habitat

The longfin smooth-head lives in the temperate and tropical Atlantic Ocean, and in the Gulf of Mexico;[8][9][10] it is bathypelagic, living at depths of 800–2,200 m (2,600–7,200 ft), being most common at 1,200–1,800 m (3,900–5,900 ft).[6]

Behaviour

The longfin smooth-head lays large eggs, up to 6 mm (0.24 in) in diameter, and are believed to be buried in redds, similar to how the Atlantic salmon buries its eggs.[11][12] A detritivore, the longfin smooth-head is recorded to ingest sediment from the seafloor, taking up with it microfauna such as foraminiferans.[13][14]

References

  1. ↑ Museum), Percy (Butch) Hulley (South Africa (July 11, 2012). "IUCN Red List of Threatened Species: Conocara macropterum". IUCN Red List of Threatened Species – via www.iucnredlist.org.
  2. ↑ "WoRMS - World Register of Marine Species - Conocara macropterum (Vaillant, 1888)". www.marinespecies.org.
  3. ↑ Richards, William J. (August 8, 2005). Early Stages of Atlantic Fishes: An Identification Guide for the Western Central North Atlantic, Two Volume Set. CRC Press. ISBN 9780203500217 – via Google Books.
  4. ↑ "Taxonomy browser (Conocara macropterum)". www.ncbi.nlm.nih.gov.
  5. ↑ "Conocara macropterum | NBN Atlas". species.nbnatlas.org.
  6. 1 2 "Conocara macropterum, Longfin smooth-head". www.fishbase.se.
  7. ↑ Merrett, N. R.; Haedrich, R. L. (October 31, 1997). Deep-Sea Demersal Fish and Fisheries. Springer Science & Business Media. ISBN 9780412394102 – via Google Books.
  8. ↑ Felder, Darryl L.; Camp, David K. (June 29, 2009). Gulf of Mexico Origin, Waters, and Biota: Volume I, Biodiversity. Texas A&M University Press. ISBN 9781603440943 – via Google Books.
  9. ↑ Nations, Food and Agriculture Organization of the United (October 10, 2002). The Living Marine Resources of the Western Central Atlantic. Food and Agriculture Organization of the United Nations. ISBN 9789251048269 – via Google Books.
  10. ↑ "Conocara macropterum (Vaillant, 1888)". www.gbif.org.
  11. ↑ Priede, I. G. (August 10, 2017). Deep-Sea Fishes: Biology, Diversity, Ecology and Fisheries. Cambridge University Press. ISBN 9781107083820 – via Google Books.
  12. ↑ "Marine Species Identification Portal : Longfin smooth-head - Conocara macroptera". species-identification.org.
  13. ↑ Deep-Sea Fishes. Academic Press. October 1, 1997. ISBN 9780080585406 – via Google Books.
  14. ↑ Encyclopedia of Fish Physiology: From Genome to Environment. Academic Press. June 1, 2011. ISBN 9780080923239 – via Google Books.
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