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Perciformes/Cottoidei (Sculpins) >
Cottidae (Sculpins)
Etymology: Cottus: Greek, kottos = a fish (Ref. 45335); gobio: Derived from the Latin scaturigo, meaning spouting water, spring, in reference to the type locality..
More on author: Linnaeus.
Issue
Junior synonym Cottus jaxartensis is a valid species according to Sideleva, 2021 (Ref. 129291) and Cottus nudus is a primary homonyn and permanently invalid (include in Ref. 129291 Quote).
Environment: milieu / climate zone / depth range / distribution range
Sinh thái học
; Nước ngọt; Thuộc về nước lợ gần đáy; pH range: 7.0 - 7.5; dH range: 10 - ?; di cư trong nước ngọt (Ref. 51243); Mức độ sâu 2 - 2 m (Ref. 58018). Subtropical; 1°C - 16°C (Ref. 45166); 70°N - 40°N, 6°W - 60°E
Europe: North Baltic in Scandinavia south to stream Maurine in southwesternmost of corner of Baltic basin (Germany); lower reaches of streams and rivers and along coast of Sweden, Finland, Russia southwest to Estonia; Danube (except upper tributaries Save and Arges), Elbe, Ems, Weser and Rhône drainages; tributaries of upper Rhine downriver (northward) to about Mannheim; a few of uppermost tributaries of River Tevere, central Italy; Adriatic drainages from Potenza in Italy to Zrmanja in Croatia, except Timavo spring. Locally introduced in Scheldt drainage in Belgium.
Length at first maturity / Bộ gần gũi / Khối lượng (Trọng lượng) / Age
Maturity: Lm 4.2 range ? - ? cm
Max length : 18.0 cm TL con đực/không giới tính; (Ref. 556); common length : 10.0 cm TL con đực/không giới tính; (Ref. 556); Tuổi cực đại được báo cáo: 10 các năm (Ref. 74370)
Các tia vây lưng cứng (tổng cộng) : 6 - 8; Các vây lưng mềm (tổng cộng) : 15 - 18; Tia cứng vây hậu môn: 0; Tia mềm vây hậu môn: 10 - 13; Động vật có xương sống: 31 - 34. Caudal fin with 13 to 14 rays (Ref. 40476).
Occurs in cold, clear and fast-flowing water of small stream to medium-sized rivers as well as on gravel or rocky shores of cold lakes and in slightly brackish waters along eastern coast of Baltic coast (Ref. 59043). Feeds on small bottom invertebrates, mainly insects, crustaceans. Pink to yellow eggs are found in clumps attached to undersides of large stones (Ref. 41678). Contrary to statements in older literature, eggs and larvae of fishes are not a common food item (Ref. 45167).
Spawns once a year for several years in low productivity streams, but exhibits multiple spawning within a season in high productivity environments (Ref. 40290, 40754). Male protects several batches of eggs--deposited below a stone--for about 3 weeks. Larvae are not guarded and may occasionally been eaten (Ref. 45166). Also Ref. 26506.
Freyhof, J., M. Kottelat and A. Nolte, 2005. Taxonomic diversity of European Cottus with description of eight new species (Teleostei: Cottidae). Ichthyol. Explor. Freshwat. 16(2):107-172. (Ref. 55856)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Các nghề cá: không ích lợi (thú vị); mồi: occasionally
Các công cụ
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00912 (0.00543 - 0.01532), b=3.18 (3.03 - 3.33), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Mức dinh dưỡng (Ref.
69278): 3.2 ±0.2 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 (tm=1-3).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
