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Rutilus rutilus (Linnaeus, 1758)

Roach
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Rutilus rutilus
Picture by Muséum-Aquarium de Nancy/D. Terver


Denmark country information

Common names: Almindelig skalle, Gråskalle, Skalle
Occurrence: native
Salinity: freshwater
Abundance: common (usually seen) | Ref: Muus, B.J. and P. Dahlstrøm, 1990
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: gamefish: yes;
Comments: Occurs throughout the country. Also Ref. 556, 9945. Also in the Baltic (Ref. 36252).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/da.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Muus, B.J. and P. Dahlstrøm, 1990
National Database:

Common names from other countries

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

> Cypriniformes (Carps) > Leuciscidae (Minnows) > Leuciscinae
Etymology: Rutilus: Latin, rutilus = reddish (Ref. 45335).
  More on author: Linnaeus.

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

; Nước ngọt; Thuộc về nước lợ Sống nổi và đáy; pH range: 7.0 - 7.5; dH range: 10 - 15; di cư trong nước ngọt (Ref. 51243); Mức độ sâu 15 - ? m.   Subtropical; 10°C - 20°C (Ref. 1672); 71°N - 36°N, 10°W - 155°E

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: north to Pyrenees and Alps, eastward to Ural and Eya drainages (Caspian basin); Aegean basin in Pinios, Vardar, Vegoritis, Kastoria, Struma and Maritza drainages. Asia: Marmara basin and lower Sakarya in Anatolia, Aral basin, and Siberia from Ob eastward to Lena drainages. Naturally absent from Iberian Peninsula, Adriatic basin, Italy, Great Britain north of 56 N, Scandinavia north of 69° N. Locally introduced in Spain; introduced and invasive in northeastern Italy. At least one country reports adverse ecological impact after introduction.

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

Maturity: Lm 14.0, range 8 - ? cm
Max length : 50.2 cm TL con đực/không giới tính; (Ref. 88166); common length : 25.0 cm TL con đực/không giới tính; (Ref. 556); Khối lượng cực đại được công bố: 1.8 kg (Ref. 4699); Tuổi cực đại được báo cáo: 14 các năm (Ref. 41616)

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

Các tia vây lưng cứng (tổng cộng) : 3; Các vây lưng mềm (tổng cộng) : 9 - 12; Tia cứng vây hậu môn: 3; Tia mềm vây hậu môn: 9 - 13; Động vật có xương sống: 39 - 41. The only species of the genus in Atlantic basin north of Pyrénées which can be distinguished from its congeners in Black and Caspian Sea basins and Apennine Peninsula by the combination of the following characters: 39-41 + 2-3 (41-44 total) scales along lateral line; dorsal and anal fins with 10½ branched rays; body laterally compressed, depth 25-35% SL; mouth terminal; snout pointed; iris from yellow in juveniles to deep red in adults; pectoral, pelvic and anal fins orange to red; and no midlateral stripe. Differs from its congeners in Balkan Peninsula by uniquely possessing 10½ branched anal rays (Ref. 59043). Caudal fin with 18-19 rays (Ref. 2196). Also Ref. 96829.

Sinh học     Tự điển (thí dụ epibenthic)

Found in a wide variety of habitats, mainly in lowland areas. Most abundant in nutrient-rich lakes and large to medium sized rivers and backwaters. Also recorded from small lowland streams and from brackish coastal lagoons. In fast-flowing rivers, confined to stretches where backwaters or shelters allow for overwintering. Larvae and juveniles live in wide variety of littoral habitats. Preys predominantly on benthic invertebrates, zooplankton, plant material and detritus. May shift from littoral to pelagic habitats and between benthic food and zooplankton when abundance of a specific food item is high or for avoidance of predation and/or competition. Breeds among dense submerged vegetation in backwaters or lakes, flooded meadows or in shallow, fast-flowing river habitats on plant or gravel bottom. Undertakes short spawning migrations. Stays in backwaters or in deep parts of lakes to overwinter. Produces fertile hybrids with Abramis brama (Ref. 59043). Pale yellow eggs are found attached to vegetation and tree roots (Ref. 41678). There is only little commercial fishing for this species, but valued for recreational fishing. Utilized fresh and dried or salted; can be pan-fried, broiled and baked (Ref. 9988).

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

Spawns in shoals among dense among dense submerged vegetation in backwaters or lakes, flooded meadows or in shallow, fast-flowing river habitats on plant or gravel bottom. Eggs are sticky and hatch in about 12 days (Ref. 59043). Pale yellow eggs are attached to vegetation and tree roots (Ref. 41678).

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

Kottelat, M. and J. Freyhof, 2007. Handbook of European freshwater fishes. Publications Kottelat, Cornol and Freyhof, Berlin. 646 pp. (Ref. 59043)

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

  Potential pest (Ref. 59043)




Human uses

Các nghề cá: Tính thương mại; Nuôi trồng thủy sản: Tính thương mại; cá để chơi: đúng
FAO(Aquaculture systems: Sản xuất; Các nghề cá: Sản xuất; publication : search) | FishSource | Biển chung quanh ta

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Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5020   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00741 (0.00683 - 0.00805), b=3.16 (3.14 - 3.18), in cm Total Length, based on LWR estimates for this species (Ref. 93245).
Mức dinh dưỡng (Ref. 69278):  3.0   ±0.0 se; based on diet studies.
Thích nghi nhanh (Ref. 120179):  Trung bình, thời gian nhân đôi của chủng quần tối thiểu là 1.4 - 4.4 năm (K=0.10-0.21; tm=2-3; tmax=12).
Fishing Vulnerability (Ref. 59153):  Moderate to high vulnerability (53 of 100).
Price category (Ref. 80766):   Unknown.