Notothenia neglecta

Notothenia neglecta was first formally described in 1951 by the Swedish ichthyologist {{ill|Orvar Nybelin|sv}} with the type locality being given as Deception Island, South Shetland Islands.{{Cof genus | genus = Notothenia | access-date = 24 September 2021}} Some authorities treat this taxon as a synonym of N. coriiceps.{{cite book | editor1 = O. Gon | editor2 = P.C. Heemstra | name-list-style = and | year = 1990 | title = Fishes of the Southern Ocean | author1 = H.H. Dewitt | author2 = P.C. Heemstra | author3 = O. Gon | publisher = South African Institute for Aquatic Biodiversity | isbn = 9780868102115 | chapter = Nototheniidae Notothens | url = https://www.biodiversitylibrary.org/item/240475#page/300/mode/1up}} The specific name neglecta means "overlooked", thought to be an allusion to this species confusion with N. coriiceps.{{cite web | url = https://etyfish.org/perciformes7/ | title = Order Perciformes: Suborder Notothenoididei: Families Bovichtidae, Pseaudaphritidae, Elegopinidae, Nototheniidae, Harpagiferidae, Artedidraconidae, Bathydraconidae, Channichthyidae and Percophidae | work = The ETYFish Project Fish Name Etymology Database | editor1= Christopher Scharpf | editor2 = Kenneth J. Lazara | name-list-style = amp |date = 12 April 2021 | access-date = 23 September 2021 | publisher = Christopher Scharpf and Kenneth J. Lazara}}

Members of N. neglecta have 3-7 dorsal spines, 37-40 dorsal soft rays, and 3-7 anal soft rays.Froese & Luna Younger fish have a black patch located near the tip of their pectoral fin.Froese & Luna N. neglecta vary in both size and weight. Sampled N. neglecta typically measure between {{cvt|20-40|cm}} in length and typically weigh between {{cvt|200|-|1600|g}}.Barrera-Oro & Casaux 1990, p. 207. Notothenia neglecta has gut flora composed almost exclusively of the bacteria Vibrio,Cormack & Fraile 1990, p. 413. reflective of the ability of N. neglecta to tolerate high saline conditions and frequent ingestion of Antarctic krill,Cormack & Fraile 1990, p. 413. which is composed of high amounts of chitin.Cormack & Fraile 1990, p. 413. Vibrio in N. neglecta may also play a role in osmoregulationCormack & Fraile 1990, p. 416. via regulation of sodium ions.Cormack & Fraile 1990, p. 416. N. neglecta possess an inflammatory response pathway that has made the fish suitable for the cold Antarctic environment.Silva, Hernandez-Blazquez & Barbieri 1998, p. 212. Additionally, N. neglecta synthesizes eight antifreeze proteins to combat the freezing temperatures of the environment.Cheng, Fernandes, Detrich & DeVries 1990, p. 9265.

Notothenia neglecta is an Antarctic fish species that typically lives at a depth of {{cvt|50|m}},Donatti & Fanta 2002, p. 146. but has also been found living a depths from {{cvt|0|–|450|m}}.Barrera-Oro & Casaux 1990, p. 207. Young N. neglecta are typically found at depths of {{cvt|1|–|10|m}}, and adults are typically found in deeper water.Froese & Luna In the Antarctic, they have been found in Antarctic peninsula waters, South Georgia Island, and Peter I Island.Barrera-Oro & Casaux 1990, p. 207. It is the dominant fish species in Potter Cove, King George Island, and the South Shetland Islands.Barrera-Oro & Casaux 1990, p. 207. N. neglecta display a wide and diverse diet. They are an omnivorous species,Barrera-Oro & Casaux 1990, p. 212. and feed on both benthic and pelagic species.Donatti & Fanta 2002, p. 146. Benthic N. neglecta most commonly feed on krill, but in the summertime, heavily prey on salps.Donatti & Fanta 2002, p. 146. N. neglecta has also been shown to feed on a variety of isopods, amphipods, algae, and bivalves.Barrera-Oro & Casaux 1990, p. 207.

N. neglecta engage in unique behaviors that have allowed them to thrive in the harsh Antarctic climate. They typically feed at night, which may be attributed to avoidance of larger predators who tend to feed during the day,Donatti & Fanta 2002, p. 146. and also because many of the creatures they feed on are nocturnal.Donatti & Fanta 2002, p. 146. Aggressiveness in feeding has been linked to photoperiod, or availability of light throughout the day.Donatti & Fanta 2002, p. 146. They are less aggressive in their pursuit of prey during the day, but at night, the highest level of aggressiveness and pursuit are observed.Donatti & Fanta 2002, p. 146. N. neglecta has also demonstrated evidence of social hierarchy.Donatti & Fanta 2002, p. 149. Scientists have observed fish become less reactive to availability of prey in the presence of another member of their species.Donatti & Fanta 2002, p. 149. This suggests that these less reactive members may be the less dominant members of their groups.Donatti & Fanta 2002, p. 149. Once the other fish were removed from the environment, the original member would hunt prey as normal.Donatti & Fanta 2002, p. 149.

N. neglecta only spawns once a year.Froese & Luna Females usually have their first spawn between the ages of 6 and 8 years old.Froese & Luna

{{Reflist}}

• Barrera-Oro, E. R., & Casaux, R. J. (1990). Feeding selectivity in Notothenia neglecta, Nybelin, from Potter Cove, South Shetland Islands, Antarctica. Antarctic Science, 2(3), 207-213. doi:10.1017/s0954102090000281
• Cormack, W. P., & Fraile, E. R. (1990). Bacterial flora of newly caught Antarctic fish Notothenia neglecta. Polar Biology, 10(6). doi:10.1007/bf00233688
• Donatti, L., & Fanta, E. (2002). Influence of photoperiod on visual prey detection in the Antarctic fish Notothenia neglecta. Antarctic Science, 14(2), 146-150. doi:10.1017/s0954102002000706
• Froese, R., & Luna, S. M. (n.d.). Notothenia neglecta summary page. Retrieved from https://www.fishbase.se/summary/58010
• Hsiao, K., Cheng, C. C., Fernandes, I. E., Detrich, H. W., & DeVries, A. L. (1990). An antifreeze glycopeptide gene from the antarctic cod Notothenia coriiceps neglecta encodes a polyprotein of high peptide copy number. Proceedings of the National Academy of Sciences, 87, 9265-9269. doi:10.1073/pnas.87.23.9265
• Notothenia neglecta Nybelin, 1951. (n.d.). Retrieved from https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=642593#null
• Silva, J. R., Hernadez-Blazquez, F. J., & Barbieri, R. L. (1998). Induced inflammatory process in the Antarctic fish Notothenia neglecta. Polar Biology, 20(3), 206-212. doi:10.1007/s003000050297

{{Taxonbar|from=Q2742972}}

neglecta

Category:Fish of Antarctica

Category:Taxa named by Orvar Nybelin

Category:Fish described in 1951