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Salariopsis fluviatilis (Asso, 1801)

Freshwater blenny
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Italy country information

Common names: Cagnetta, Cagnetta, Cagnetto
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Occurs in Lakes Garda, maggiore, Lugano and Mergozzo, Sicily, Sardinia, and in most streams with stone bottom. Reproduces in April to July at temperatures above 18°C (Ref. 59043). Also Ref. 26100, 43648, 94493.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/it.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Gandolfi, G., S. Zerunian, P. Torricelli and A. Marconato (eds.), 1991
National Database: ICTIMED

Common names from other countries

Classificatie / Names Lokale namen | Synoniemen | Catalog of Fishes(Genus, Soort(en)) | ITIS | CoL | WoRMS | Cloffa

> Blenniiformes (Blennies) > Blenniidae (Combtooth blennies) > Blenniinae
Etymology: Salariopsis: The suffix -opsis, from the ancient Greek 'view, appearance', is added to the epithet "Salaria" to highlight its apparent, but misleading, morphological similarity to the blenniid genus Salaria Forsskål, 1775 (Ref. 128181).

Environment: milieu / climate zone / depth range / distribution range Ecologie

; zoet water; brak water demersaal; pH range: 6.5 - 7.5; dH range: 8 - 12.   Subtropical; 18°C - 24°C (Ref. 13371); 47°N - 32°N, 7°W - 37°E

Verspreiding Landen | FAO regio's | Ecosystemen | Voorkomen | Point map | Introducties | Faunafri

Europe and Africa: Africa: Rivers and brooks in Algeria and Morocco flowing to the Mediterranean; including Israel. Europe: Albania, Croatia, France, Greece, Italy, Montenegro and Spain (Ref. 26100); Portugal (Ref. 13612). Asia: Turkey.

Grootte / Gewicht / Leeftijd

Maturity: Lm ?  range ? - ? cm
Max length : 15.4 cm TL mannelijk / geslacht onbekend; (Ref. 95757); common length : 8.0 cm TL mannelijk / geslacht onbekend; (Ref. 556); max. gerapporteerde leeftijd: 5 Jaren (Ref. 59043)

Korte beschrijving Determinatiesleutels | Morfologie | Morfometrie

Dorsale stekels (totaal) : 12 - 13; Dorsale zachte stralen (totaal) : 16 - 17; Anale stekels: 2; Anale zachte stralen: 16 - 19; Wervels: 36. Diagnosis: This species is distinguished from its congeners in European inland waters by the following combination of characters: a broad diagonal band of tiny dots running from eye backward and downward; branched cirrus above eye; head length 25-31% SL; upper jaw with 16-24 teeth, lower jaw with 16-20; A II,16-19; D XII-XIII,16-17 (Ref. 59043).

Biologie     Verklarende woordenlijst (bv. epibenthic)

Facultative air-breathing in the genus (Ref. 126274); Adults occur in rivers and brooks (Ref. 4342), in relatively shallow water as well as in low altitude lakes (Ref. 30578), on stone bottom; in streams, deepest and fastest microhabitats are preferred and sometimes coastal lagoons with low salinity (Ref. 59043). Reported from marine environment (Ref. 58342). A territorial species that lives up to 5 years (Ref. 59043). Adults feed on small benthic organisms, aquatic insects and pupae (Ref. 94105). Oviparous (Ref. 205). Females spawn for the first time at the end of the first year and spawning lasts up to 3 years but with most females dying at the end of the first spawning year. One female spawns up to 1,200 eggs (usually 200-300) in a single layer under a large stone; spawns several egg portions during the season. On the other hand, the males clean, fan and defend the eggs until hatching. Several females may spawn with one male, which may guard the eggs at different stages of development (Ref. 59043). Eggs are demersal and adhesive; eggs hatch in about a week (Ref. 205, 59043). Planktonic larvae until about 1.5 cm, are drifted to and remain in quiet pools or side arms of rivers (Ref. 59043). Populations are threatened due to pollution and water abstraction (Ref. 26100); most riverine populations affected by habitat alteration (especially siltation and alteration of stream morphology), and predation of exotic species. Presence of habitat suitable for the pelagic 'larval' stage downstream of spawning sites is a limiting factor; lacustrine population are apparently safer (Ref. 59043).

Levenscyclus en paargedrag Maturities | Voortplanting | Spawnings | Egg(s) | Fecundities | Larven

Produces 200-300 eggs (Ref. 1672). Paternal care (Ref. 4342). Male cleans, fans and defends eggs until hatching. Several females spawn with one male, which may guard eggs at different stages of development. Eggs hatch in about a week (Ref.59043).

Hoofdreferentie Upload your references | Referenties | Coördinator : Williams, Jeffrey T. | Medewerkers

Bath, H., 1986. Blenniidae. p. 355-357. In J. Daget, J.-P. Gosse and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ISNB, Brussels, MRAC, Tervuren; and ORSTOM, Paris. Vol. 2. (Ref. 4342)

Status op de Rode Lijst van het IUCN (Ref. 130435)

  Niet bedreigd (LC) ; Date assessed: 31 January 2006

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

  Harmless




Gebruik door de mens

Visserij: van geen belang; Aquarium: Commercieel
FAO(Publication : search) | FishSource |

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Estimates based on models

Preferred temperature (Ref. 115969): 16.2 - 19.7, mean 18.1 (based on 80 cells).
Fylogenetische diversiteitsindex (Ref. 82804):  PD50 = 0.5312   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01072 (0.00830 - 0.01384), b=3.03 (2.96 - 3.10), in cm Total Length, based on LWR estimates for this species (Ref. 93245).
Trofisch niveau (Ref. 69278):  3.5   ±0.37 se; based on food items.
Weerstandsvermogen (Ref. 120179):  Gemiddeld, minimale populatieverdubbelingstijd 1,4-4,4 jaar (Fec = 200).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (23 of 100).