Ireland country information

Common names: [No common name]
Occurrence: native
Salinity: freshwater
Abundance: common (usually seen) | Ref:
Importance: commercial | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: live export: yes;
Comments: In several large lakes, including Lough Neagh, upper and lower Erne, and Lough Ree and Lough Derg. Non-migratory, purely freshwater populations. This is the only non-arctic population known as pollan (Ref. 54205).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/ei.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Maitland, P.S. and R.N. Campbell, 1992
National Database:

Common names from other countries

Омуль, 秋(凹目)白鲑, Pollan, ... more

Classification / Names Tên thường gặp | Các synonym ( Các tên trùng) | Catalog of Fishes(Giống, Các loài) | ITIS | CoL | WoRMS | Cloffa

> Salmoniformes (Salmons) > Salmonidae (Salmonids) > Coregoninae
Etymology: Coregonus: Greek, kore = pupils of the eye + Greek, gonia = angle (Ref. 45335).
More on author: Pallas.

Environment: milieu / climate zone / depth range / distribution range Sinh thái học

Biển; Nước ngọt; Thuộc về nước lợ; di cư biển sông (để đẻ trứng) (Ref. 51243). Polar; 84°N - 49°N, 8°W - 95°W

Sự phân bố Các nước | Các khu vực của FAO | Các hệ sinh thái | Những lần xuất hiện | Point map | Những chỉ dẫn | Faunafri

Europe: All drainages (except Ob and Baikal) of Arctic Ocean in Eurasia from Mezen eastward. North America: Cape Barrow to Coronation Bay. Introduced in many localities of former USSR, but not established (Ref. 59043).

Length at first maturity / Bộ gần gũi / Khối lượng (Trọng lượng) / Age

Maturity: L_m ? range ? - ? cm
Max length : 65.0 cm SL con đực/không giới tính; (Ref. 59043); common length : 47.0 cm TL con đực/không giới tính; (Ref. 12193); Tuổi cực đại được báo cáo: 12 các năm (Ref. 59043)

Short description Khóa để định loại | Hình thái học | Sinh trắc học

Các tia vây lưng cứng (tổng cộng) : 0; Các vây lưng mềm (tổng cộng) : 10 - 12; Tia cứng vây hậu môn: 0; Tia mềm vây hậu môn: 12 - 14; Động vật có xương sống: 64 - 67. Distinguished by the pale or colorless pelvic fins, a terminal mouth and the presence of 41 to 48 gill rakers on the 1st gill arch (Ref. 27547). Dorsal fairly high and slightly falcate; pelvic with axillary process (Ref. 27547). Brown to dark greenish above fading to silvery on sides and belly; fins pale (Ref. 27547).

Occurs in brackish waters (20-22 ppt) of coastal lagoons and mouths of rivers and bays (Ref. 4779). Mostly in larger lowland rivers (Ref. 59043). Nerito-pelagic (Ref. 58426). Feeds on small crustaceans, insects, small fishes (Ref. 28219, 28857), worms and clams (Ref. 58426). At sea, feeds on larger crustaceans and small fish (Ref. 59043). No feeding occurs during the upstream migration (Ref. 4779). Lives 10 -12 years, rarely up to 20 (Ref. 59043). Enters rivers in shoals to spawn (Ref. 4779). Spends 6-8 years at sea before maturing and returning to rivers in June - July, to spawn in September - October of same year. A second run in autumn; those fishes remain a year in rivers before spawning. Moves far upstream, sometimes our to 1500 km. Spawns in shallow tributaries with some current in well oxygenated water over gravel bottom. Individual females do not spawn every year; spawns only 2-3 times during entire life. After spawning adults return directly to sea. Embryonic development lasts up to 7 months. Alevins migrate downstream in May - June (Ref. 59043). Collected by fyke nets (Ref. 4526). An important commercial species, but catches and abundance markedly reduced in last years (Ref. 59043).

Life cycle and mating behavior Maturities | Sự tái sinh sản | Spawnings | Egg(s) | Fecundities | Ấu trùng

Mature adults migrate upstream in the summer and may cover as much as 1,000 km (Ref. 28219) to spawn over gravel in fairly swift water. After spawning, adults return downstream. Young probably hatch in the spring and descend rivers into estuaries (Ref. 27547). Coregonus autumnalis do not breed yearly (Ref. 28219, 28220).

Main reference Upload your references | Các tài liệu tham khảo | Người điều phối | Người cộng tác

Wheeler, A., 1992. A list of the common and scientific names of fishes of the British Isles. J. Fish Biol. 41(suppl.A):1-37. (Ref. 5204)

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 01 January 2008

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Các nghề cá: Tính thương mại

FAO(Publication : search) | FishSource | Biển chung quanh ta

Thêm thông tin

Trophic ecology
Các loại thức ăn
Diet compositions
Food consumptions
Food rations
Các động vật ăn mồi

Ecology
Sinh thái học
Home ranges

Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversions
Recruitments
Abundances

Life cycle
Sự tái sinh sản
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
Ấu trùng
Sự biến động ấu trùng

Distribution
Các nước
Các khu vực của FAO
Các hệ sinh thái
Những lần xuất hiện
Những chỉ dẫn
BRUVS - Videos

Anatomy
Gill areas
Não bộ
Otoliths

Physiology
Body compositions
Nutrients
Oxygen consumptions
Dạng bơi
Swimming speeds
Visual pigment(s)
Âm thanh của cá
Diseases / Parasites
Toxicities (LC50s)

Genetics
Di truyền
Electrophoreses
Heritabilities

Human related
Aquaculture systems
Các tổng quan nuôi trồng thủy sản
Các giống
Ciguatera cases
Stamps, coins, misc.

Outreach
Người cộng tác

Taxonomy
Tên thường gặp
Các synonym ( Các tên trùng)
Hình thái học
Sinh trắc học
Các tranh (Ảnh)

References
Các tài liệu tham khảo

Các công cụ

Special reports

Check for Aquarium maintenance | Check for Species Fact Sheets | Check for Aquaculture Fact Sheets

Download XML

Summary page | Số liệu điểm | Tên thường gặp | Photos

Các nguồn internet

Estimates based on models

Preferred temperature (Ref. 115969): -1.7 - 3.4, mean -0.4 (based on 988 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00468 (0.00405 - 0.00540), b=3.22 (3.18 - 3.26), in cm Total Length, based on LWR estimates for this species (Ref. 93245).

Mức dinh dưỡng (Ref. 69278): 3.7 ±0.2 se; based on diet studies.

Thích nghi nhanh (Ref. 120179): thấp, thời gian nhân đôi của chủng quần tối thiểu là 4.5 - 14 năm (tm=6; Fec=2,000).

Prior r = 0.40, 95% CL = 0.26 - 0.60, Based on 1 data-limited stock assessment.

Fishing Vulnerability (Ref. 59153): Moderate to high vulnerability (52 of 100).

Price category (Ref. 80766): Very high.

Coregonus autumnalis (Pallas, 1776)