Portugal country information

Common names: Patruça, Petruca, Solha
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: commercial | Ref: Antunes, C., F. Cobo and M.J. Araujo, 2016
Aquaculture: | Ref:
Regulations: | Ref:
Uses: gamefish: yes;
Comments: Found in the Iberian Peninsula (Ref. 119049). Recorded from the Tagus estuary (Ref. 51031). Minimum capture size: no limit - 25 cm TL (Ref. 119049). Status of threat: Data deficient (Ref. 119049).
National Checklist: Portugal
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/po.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Thiel, R., H. Cabral and M.J. Costa, 2003
National Database: Portuguese Freshwater Fishes

Common names from other countries

Flet d'Europe, Platija europea, Камбала речная, ... more

Classification / Names Nomi Comuni | Sinonimi | Catalog of Fishes(Genere, Specie) | ITIS | CoL | WoRMS | Cloffa

> Pleuronectiformes (Flatfishes) > Pleuronectidae (Righteye flounders) > Pleuronectinae
Etymology: Platichthys: Greek, platys = flat + Greek, ichthys = fish (Ref. 45335).
More on author: Linnaeus.

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

marino; acqua dolce; salmastro demersale; pH range: 7.5 - 8.2; catadromo (Ref. 51243); distribuzione batimetrica 1 - 100 m (Ref. 35388). Temperate; 5°C - 25°C (Ref. 13614); 72°N - 30°N, 32°W - 45°E (Ref. 54704)

Distribuzione Stati | Aree FAO | Ecosystems | Presenze | Point map | Introduzioni | Faunafri

Eastern Atlantic: coastal and brackish waters of western Europe and from the White Sea to the Mediterranean and the Black Sea (Ref. 4705, Ref. 51442). Introduced into the USA and Canada accidentally through transport in ballast water (Ref. 1739). Asia: Iran (Ref. 39702).

Length at first maturity / Size / Peso / Age

Maturity: L_m 22.4, range 14 - 30 cm
Max length : 60.0 cm TL maschio/sesso non determinato; (Ref. 35388); common length : 50.0 cm TL maschio/sesso non determinato; (Ref. 30578); peso massimo pubblicato: 2.9 kg (Ref. 104349); Età massima riportata: 15 anni (Ref. 3944)

Short description Chiavi di identificazione | Morfologia | Morfometria

Spine dorsali (totale) : 0; Raggi dorsali molli (totale) : 53 - 62; Spine anali: 0; Raggi anali molli: 37 - 46. Flatfish, its disc width less than half its length (Ref. 3137). Small mouth (Ref. 3137, Ref. 51442). Eyes mostly (70%) on right side (Ref. 3137, 51442), 79% of dextrally oriented flounder (n = 1076) in Bos, 2000 (Ref. 57574). Rough skin, especially along the lateral line and the basis of the dorsal and anal fin (Ref. 3137). Lateral line straight, slightly rounded over pectorals (Ref. 3137). Green-olive colored (Ref. 51442), the bottom side white (Ref. 3137). Irregular reddish spots on the eye side (Ref. 35388).

Migratory fish, which is most of the year found in estuaries (Ref. 51442). Adults occur on mud and sand bottom in shallow water, at sea and brackish; often entering freshwaters (Ref. 59043). During winter, adults retreat to deeper, warmer waters, where they spawn in spring (Ref. 30193). The growing larvae are moving to the coast (Ref. 51442). Larvae and early juveniles use selective tidal transport to migrate upstream rivers (Ref. 57575) using a range of triggers such as salinity, prey density and water temperature (Ref. 57573, 57574). Juveniles live in shallow coastal waters and estuaries (Ref. 57574), which are also the summer feeding grounds for the adults (Ref. 30193). Juveniles of less than a year old feed on plankton and larvae of insects, juveniles of more than a year and adults feed on benthic fauna (Ref. 51442), including small fishes and invertebrates (Ref. 30193). Nocturnal and burrowing (Ref. 30193). Marketed fresh and frozen; can be steamed, fried, boiled, microwaved and baked (Ref. 9988). Worms and mollusks are excellent baits for line fishing (Ref. 30578).

Life cycle and mating behavior Maturities | Riproduzione | Spawnings | Egg(s) | Fecundities | Larve

Spawns in the water column (Ref. 7471). Produces 400,000 to 2,000,000 eggs for each female (Ref. 51442).

Main reference Upload your references | Bibliografia | Coordinatore : Amaoka, Kunio | Collaboratori

Vinnikov, K.A., R.C. Thomson and T.A. Munroe, 2018. Revised classification of the righteye flounders (Teleostei: Pleuronectidae) based on multilocus phylogeny with complete taxon sampling. Molecular phylogenetics and evolution, 125:147-162. (Ref. 122998)

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 04 February 2009

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Pesca: commerciale; Acquacoltura: sperimentale; Pesce da pesca sportiva: si

FAO(Aquaculture systems: production; pesca: production, species profile; publication : search) | FIRMS (Stock assessments) | FishSource | Sea Around Us

Informazioni ulteriori

Trophic ecology
Prede
Diet compositions
Food consumptions
Food rations
Predatori

Ecology
Ecologia
Home ranges

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

Life cycle
Riproduzione
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
Larve
Dinamica popolazioni larvali

Distribution
Stati
Aree FAO
Ecosystems
Presenze
Introduzioni
BRUVS - Videos

Anatomy
Gill areas
Cervelli
Otoliths

Physiology
Body compositions
Nutrients
Oxygen consumptions
Swimming type
Swimming speeds
Visual pigment(s)
Suoni dei Pesci
Diseases / Parasites
Toxicities (LC50s)

Genetics
Genetica
Electrophoreses
Heritabilities

Human related
Aquaculture systems
Profili di acquacoltura
Varietà
Ciguatera cases
Stamps, coins, misc.

Outreach
Collaboratori

Taxonomy
Nomi Comuni
Sinonimi
Morfologia
Morfometria
Immagini

References
Bibliografia

Strumenti

Special reports

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

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Summary page | Point data | Nomi Comuni | Photos

Fonti Internet

Estimates based on models

Preferred temperature (Ref. 115969): 7.2 - 14.2, mean 10.2 (based on 862 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00759 (0.00672 - 0.00857), b=3.07 (3.03 - 3.11), in cm Total Length, based on LWR estimates for this species (Ref. 93245).

Trophic level (Ref. 69278): 3.3 ±0.2 se; based on diet studies.

Resilienza (Ref. 120179): Medio, tempo minimo di raddoppiamento della popolazione 1.4 - 4.4 anni (K=0.22-0.3; tm=2-5; tmax=15; Fec= 2 million).

Prior r = 0.56, 95% CL = 0.37 - 0.83, Based on 5 full stock assessments.

Fishing Vulnerability (Ref. 59153): Moderate to high vulnerability (49 of 100).

Climate Vulnerability (Ref. 125649): Moderate vulnerability (36 of 100).

Price category (Ref. 80766): Very high.

Platichthys flesus (Linnaeus, 1758)