Lepidurus arcticus

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Lepidurus arcticus
Skjoldkreps (Lepidurus arcticus).jpg
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Animalia
Phylum: Arthropoda
Class: Branchiopoda
Order: Notostraca
Family: Triopsidae
Genus: Lepidurus
Species:
L. arcticus
Binomial name
Lepidurus arcticus
(Pallas, 1793)  [1]

Lepidurus arcticus [2] is a species of tadpole shrimp which inhabits ephemeral pools, ponds or permanent freshwater lakes of Finland, [3] [4] [5] Norway, Sweden, [6] Svalbard, [2] [7] Greenland, Iceland, Russia and the Kuril Islands. [8] [9]

Unlike other species of tadpole shrimp, Lepidurus arcticus is known to coexist with fish, such as Arctic char, [4] brown trout [6] and European whitefish. [5] Furthermore, they exist in water temperatures much colder (4–7 °C or 39–45 °F) than the other species of its order. [9] About 14 °C seems to be the upper thermal threshold for where in which waters it can live. [10] It is a common predator of Daphnia pulex . [11]

References

  1. ↑ "Lepidurus arcticus". Integrated Taxonomic Information System . Retrieved May 28, 2013.
  2. 1 2 Lakka, Hanna-Kaisa (2013). The ecology of a freshwater crustacean: Lepidurus arcticus (Branchiopoda, Notostraca) in a High Arctic region. University of Helsinki. p. 151.
  3. ↑ Lakka, Hanna-Kaisa (2020). Environmental Change in Arctic Freshwaters: The Response of Indicator Species to Global Warming and Acidification in the Arctic. University of Jyväskylä. p. 51. ISBN   978-951-39-8326-0.
  4. 1 2 Järvinen, A; Lakka, H-K; Sujala, M (2014). "Arktinen Kilpikidusjalkainen, tunturivesien elävä fossiili, löydetty jälleen Suomesta. ("The living fossil Arctic tadpole shrimp was found again in Finland")". Luonnon Tutkija (in Finnish). 1: 19–24.
  5. 1 2 Lakka, H-K; Leppänen, A; Mykrä, H; Vaajala, M; Raineva, S; Lensu, T; Salonen, E (2019). "Paljakkakilpiäinen siian ravintona Inarijärvessä". Luonnon Tutkija. 2: 66–70.
  6. 1 2 Qvenild, T; Fjeld, E; Fjellheim, A; Hammar, J; Hesthagen, T; Lakka, H-K (2021) [2021]. "Upper thermal threshold of Lepidurus arcticus (Branchiopoda, Notostraca) in lakes on the southern outreach of its distribution range". Fauna Norvegica. 41: 50–88. doi: 10.5324/fn.v41i0.3832 . hdl: 11250/3018014 . ISSN   1891-5396.
  7. ↑ Lakka, Hanna-Kaisa (2015). "Description of the male Lepidurus arcticus (Branchiopoda: Notostraca) and the potential role of cannibalism in defining male form and population sex ratio" . Journal of Crustacean Biology. 35 (3): 319–329. doi: 10.1163/1937240X-00002324 . S2CID   83523163.
  8. ↑ Schlager, Neil, et al. Grzimek's Animal Life Encyclopedia. Gale. 2004 ISBN   0-7876-5362-4.
  9. 1 2 "Species Descriptions by Chip Hannum". Archived from the original on 2011-10-06. Retrieved 2009-09-03.
  10. ↑ Upper thermal threshold of Lepidurus arcticus (Branchiopoda, Notostraca) in lakes on the southern outreach of its distribution range
  11. ↑ Kirsten Christoffersen (2001). "Predation on Daphnia pulex by Lepidurus arcticus". Hydrobiologia . 442 (1–3): 223–229. doi:10.1023/A:1017584928657. S2CID   9498330.


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