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Salaria fluviatilis  (Asso, 1801)

Freshwater blenny
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Salaria fluviatilis
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Portugal country information

Common names: Caboz-de-água-doce, Caboz-de-água-doce, Marachomba-de-água-doce
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Regularly caught when fish-collecting in the Guadiana basin (J.A. Gomes, pers. comm.) (Ref. 13612). Specimens collected in several tributaries of the Guadiana river are housed in the the National Museum of Natural History in Lisbon (Carlos Almaça, Museu Bocage, Lisboa, pers. comm.) (Ref. 13612).
National Checklist: Portugal
Country Information:
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Almaça, C., 1995
National Database: Portuguese Freshwater Fishes

Classification / Names

Actinopterygii (ray-finned fishes) > Perciformes (Perch-likes) > Blenniidae (Combtooth blennies) > Salariinae
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL

Common names from other countries

Main reference

Size / Weight / Age

Max length : 15.4 cm TL male/unsexed; (Ref. 95757); common length : 8.0 cm TL male/unsexed; (Ref. 556); max. reported age: 5 years (Ref. 59043)


Freshwater; brackish; demersal; pH range: 6.5 - 7.5; dH range: 8 - 12

Climate / Range

Subtropical; 18°C - 24°C (Ref. 13371); 47°N - 32°N, 7°W - 37°E


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.
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Dorsal spines (total): 12 - 13; Dorsal soft rays (total): 16-17; Anal spines: 2; Anal soft rays: 16 - 19; Vertebrae: 36. 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).

Biology     Glossary (e.g. epibenthic)

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).

IUCN Red List Status (Ref. 115185)

Threat to humans


Human uses

Fisheries: of no interest; aquarium: commercial

More information

Larval dynamics
Aquaculture profile
Allele frequencies
Mass conversion
Stamps, Coins Misc.
Swim. type
Gill area


Special reports

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Internet sources

BHL | Check for other websites | Check FishWatcher | CISTI | DiscoverLife | ECOTOX | FAO(Publication : search) | GenBank(genome, nucleotide) | GOBASE | Google Books | Google Scholar | Google | IGFA World Record | iSpecies | National databases | Public aquariums | PubMed | Scirus | SeaLifeBase | Tree of Life | uBio | uBio RSS | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoological Record | Fishtrace

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805)
PD50 = 0.5312 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Trophic Level (Ref. 69278)
3.5   ±0.37 se; Based on food items.

Resilience (Ref. 69278)
Medium, minimum population doubling time 1.4 - 4.4 years (Fec = 200)

Vulnerability (Ref. 59153)
Low vulnerability (16 of 100)
Price category (Ref. 80766)