Coregonus pollan

Pollan is a freshwater whitefish that is known to occur in five Irish lakes, Lough Neagh, Lower Lough Erne, Lough Ree, Lough Derg and Lough Allen. The Lough Allen population has only been confirmed in 2007. Only the population of Lough Neagh remains abundant and supports a small commercial fishery.

Sometimes classified as a distinct species "Coregonus pollan", Pollan is now considered to be the same species as the Arctic cisco "Coregonus autumnalis", which is not present elsewhere in Europe, but has anadromous populations in Arctic Siberia, Alaska, and Canada.

References

* [http://www.ehsni.gov.uk/pollan.pdf All-Ireland Species Action Plan: Pollan ("Coregonus autumnalis") (Draft, 2005)]
* Bodaly, R.A., Vuorinen, D.A., Ward, R.D., Luczynski, M., & Reist, J.D. (1991). Genetic comparisons of the New and Old World coregonid fishes. Journal of Fish Biology 38, 37-51.
* Ferguson, A., Himberg, K.-J.M., & Svärdson, G. (1978). Systematics of the Irish pollan (Coregonus pollan Thompson): an electrophoretic comparison with other Holarctic Coregoninae. Journal of Fish Biology 12, 221-233.
* Kelly, F.L., Harrison, A., Connor, L., Rosell, R. and Champ, T. (2007). A survey of the fish populations in Lough Allen, June 2006: Confirmation of the presence of a population of Pollan ("Coregonus autumnalis") in the lake. Central Fisheries Board, Dublin and Agri-food and Biosciences Institute, Fisheries and Aquatic Ecosystems Branch, Belfast.
* Politov, D.V., Gordon, N.Y., & Makhrov, A.A. (2002). Genetic identification and taxonomic relationships of six Siberian species of Coregonus. Archiv für Hydrobiologie: Special Issues Advances in Limnology 57, 21-34.