Irish pollan (Coregonus pollan) fish species and information / pictures of Irish pollan - Coregonus pollan

Irish pollan (Coregonus pollan) fish species information

Scientific Name
Coregonus pollan

Common Name
Irish pollan

Biology
Lacustrine, in open waters (Ref. 59043). Feeds on bottom invertebrates and on semi-pelagic crustaceans (Mysis relicta), and also on their own eggs (Ref. 6258). Status of threat: Threatened by eutrophication, introductions and warming of lakes. Only remaining abundant population in Lough Neagh (Ref. 59043).

Classification

Classified By

Thompson, 1835

Class

Ray-finned fishes (Actinopterygii)

Order

Salmons (Salmoniformes)

Family

Salmonids (Salmonidae)

Distribution

Region

Europe

Distribution

Europe: Ireland: Lough Neagh, lower and upper Loughs Erne, Lough Ree and Lough Derg (Ref. 59043). Appendix III of the Bern Convention (protected fauna) (Ref. 1489).

Range

55°N - 52°N, 7°W - 6°W

Environment

Climate

Temperate

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

Unknown m

Depth To - meters

Unknown m

Zone

benthopelagic

Environment

Freshwater; benthopelagic

Trophic Level

3.56 s.e. 0.40 Based on food items.

Occurs in Marine / Salt water

False

Occurs in Brackish water

False

Occurs in Fresh Water

True

Occurs on Reefs

False

Is kept in Aquariums

False

Physical Size and Genetics

Maximum Length

35.0 cm

Common Length

30.0 cm

Phylogenetic Diversity Index

PD50 = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Fisheries: commercial

Vulnerability

Low vulnerability (23 of 100)

Resilience

Medium, minimum population doubling time 1.4 - 4.4 years (K=0.65; tm=3-4; tmax=10)

Threat To Humans

Harmless

IUCN Red List Status

Endangered (EN) (B1ab(iii)+2ab(iii))