Portugal country information

Common names: Cherna, Cherne, Cherne
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: minor commercial | Ref: FAO, 1994
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments:
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: Tortonese, E., 1986
National Database: Portuguese Freshwater Fishes

Common names from other countries

Cernier commun, Cherna, 美洲多锯鲈, ... more

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

> Acropomatiformes (Oceanic basses) > Polyprionidae (Wreckfishes)
Etymology: Polyprion: Greek, poly = a lot of + Greek, prion = saw (Ref. 45335).
More on authors: Bloch & Schneider.

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

marino demersale; oceanodromo (Ref. 51243); distribuzione batimetrica 40 - 600 m (Ref. 7251), usually 100 - 200 m (Ref. 36731). Deep-water; 70°N - 55°S, 82°W - 179°E

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

Eastern Atlantic: Norway to South Africa (Ref. 6633), including the Mediterranean, Canary Islands, Madeira, Cape Verde, and Tristan da Cunha. Western Atlantic: Newfoundland, Canada and Gulf of Maine to North Carolina, USA (Ref. 7251). Recorded from Uruguay to Argentina (Ref. 9050). Western Indian Ocean: St. Paul and Amsterdam islands (Ref. 6633). Southwest Pacific: New Zealand (Ref. 5755, 9072).

Length at first maturity / Size / Peso / Age

Maturity: L_m 77.9 range ? - 90 cm
Max length : 210 cm TL maschio/sesso non determinato; (Ref. 7251); common length : 80.0 cm TL maschio/sesso non determinato; (Ref. 3397); peso massimo pubblicato: 100.0 kg (Ref. 35388); Età massima riportata: 80 anni (Ref. 127279)

Short description Chiavi di identificazione | Morfologia | Morfometria

Spine dorsali (totale) : 10 - 12; Raggi dorsali molli (totale) : 11 - 13; Spine anali: 3; Raggi anali molli: 8 - 10. Bluish grey above, paler below with a silvery sheen; fins blackish brown (Ref. 6633). Juveniles have black blotches on head and body (Ref. 6633). Body tall, compressed. Big mouth with big head and a rough bony ridge across upper part of the gill cover (Ref. 35388).

Adults prefer to inhabit caves and shipwrecks (Ref. 27121). Juveniles congregate below floating objects (Ref. 27121). Usually solitary. Feed on large crustaceans, cephalopods and benthic fishes (Ref. 27121). Spawn in the summer (Ref. 35388). Are primary gonochorists (Ref. 58421). Marketed fresh or frozen; eaten steamed, fried, broiled, boiled, microwaved and baked (Ref. 9988). Minimum depth reported from Ref. 6633.

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

Primary gonochorists (Ref. 58421).

Main reference Upload your references | Bibliografia | Coordinatore : Sedberry, George | Collaboratori

Wheeler, A., 1992. A list of the common and scientific names of fishes of the British Isles. J. Fish Biol. 41(suppl.A):1-37. (Ref. 5204)

IUCN Red List Status (Ref. 130435)

Data deficient (DD) ; Date assessed: 30 April 2003

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Pesca: scarso interesse commerciale; Pesce da pesca sportiva: si

FAO(pesca: production; 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): 5.2 - 19, mean 9.4 (based on 672 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.8125 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01318 (0.00968 - 0.01796), b=3.00 (2.91 - 3.09), in cm Total Length, based on LWR estimates for this species (Ref. 93245).

Trophic level (Ref. 69278): 4.1 ±0.64 se; based on food items.

Resilienza (Ref. 120179): Basso, tempo minimo di raddoppiamento della popolazione 4.5 - 14 anni (K=0.05-0.08; tmax=76; tm=9-10 yrs estimated from VBGF; Fec=3 million).

Fishing Vulnerability (Ref. 59153): Very high vulnerability (78 of 100).

Climate Vulnerability (Ref. 125649): Moderate to high vulnerability (50 of 100).

Price category (Ref. 80766): Low.

Polyprion americanus (Bloch & Schneider, 1801)