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Pentanemus - Species in
Polynemidae - - Classification -
- Polynemidae
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Pentanemus quinquarius (Linnaeus, 1758)
Royal threadfin
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| Native range | All suitable habitat | Point map | Year 2050 |
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| This map was computer-generated and has not yet been reviewed. |
| Pentanemus quinquarius AquaMaps Data sources: GBIF OBIS |
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Pentanemus quinquarius
Picture by FAO
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Picture by FAO
Cameroon country information
Common names:
[No common name]
Occurrence: native
Salinity: brackish
Abundance: | Ref:
Importance: minor commercial | Ref: FAO, 1994
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Found in Sanaga and coastal rivers of west and south Cameroon (Ref. 51193).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/cm.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Daget, J. and J.C. Njock, 1986
National Database:
Occurrence: native
Salinity: brackish
Abundance: | Ref:
Importance: minor commercial | Ref: FAO, 1994
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Found in Sanaga and coastal rivers of west and south Cameroon (Ref. 51193).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/cm.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Daget, J. and J.C. Njock, 1986
National Database:
Common names from other countries
Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) > Carangaria/misc (Various families in series Carangaria) > Polynemidae (Threadfins)
Etymology: Pentanemus: Greek, pente = five + Greek, nema = filament (Ref. 45335).
More on author: Linnaeus.
Etymology: Pentanemus: Greek, pente = five + Greek, nema = filament (Ref. 45335).
More on author: Linnaeus.
Environment: milieu / climate zone / depth range / distribution range Ecology
Marine; brackish; demersal; depth range 10 - 70 m (Ref. 10799). Tropical; 21°N - 18°S, 27°W - 14°E (Ref. 57343)
Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri
Eastern Atlantic: Senegal to Angola (Ref. 57402). Also reported from Mauritania (Ref. 10799) and Cape Verde (Ref. 27000). Reported from Cuba based on a single specimen; no other specimens taken from the western Atlantic (Ref. 57343).
Length at first maturity / Size / Weight / Age
Maturity: Lm 15.0 range ? - 17 cm
Max length : 35.0 cm TL male/unsexed; (Ref. 57402); common length : 25.0 cm TL male/unsexed; (Ref. 3659)
Max length : 35.0 cm TL male/unsexed; (Ref. 57402); common length : 25.0 cm TL male/unsexed; (Ref. 3659)
Short description Identification keys | Morphology | Morphometrics
Dorsal spines (total): 9; Dorsal soft rays (total): 14 - 18; Anal spines: 3; Anal soft rays: 28 - 30. Diagnosis: detached pectoral filaments very long, exceeding body length; base of anal fin much longer than base of 2nd dorsal fin; body moderately elongate and compressed, its height comprised 3.0-3.4 in standard length; snout very short, blunt and prominent; mouth inferior; maxillary bone strongly widened at its end, reaching largely past eye; 2 widely separated dorsal fins, 1st with 8 flexible spines, 2nd with 1 spine and 14-18 soft rays; anal fin base much longer than 2nd dorsal fin base; pectoral fin inserted very low on body; threadlike filaments, 5 in number, 4 of them longer than total length of fish; scales ctenoid; head scaly (Ref. 57402).
Coloration: body uniformly silvery, greyish on back, shading to whitish ventrally; fins tinged with yellow (Ref. 57402).
Occurs over sandy (Ref. 2683) and muddy bottoms in shallow waters (Ref. 57343), frequently in brackish waters (Ref. 57343, 57402) and estuaries (Ref. 57402). Carnivorous (Ref. 57402), feeds on fish and shrimps (Ref. 28587).
Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Main reference
Upload your references | References | Coordinator | Collaborators
Motomura, H., 2004. Threadfins of the world (Family Polynemidae). An annotated and illustrated catalogue of polynemid species known to date. FAO Spec. Cat. Fish. Purp. Rome: FAO. 3:117 p. (Ref. 57343)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Vulnerable (VU) (A2bd); Date assessed: 15 July 2014
Threat to humans
Harmless
Human uses
Fisheries: highly commercial
FAO(Fisheries: production; publication : search) | FishSource | Sea Around Us
More information
Population dynamics
Growth parameters
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Recruitment
Abundance
Growth parameters
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Recruitment
Abundance
Life cycle
Reproduction
Maturity
Fecundity
Spawning
Spawning aggregations
Eggs
Egg development
Larvae
Larval dynamics
Reproduction
Maturity
Fecundity
Spawning
Spawning aggregations
Eggs
Egg development
Larvae
Larval dynamics
Anatomy
Gill area
Brain
Otolith
Gill area
Brain
Otolith
Physiology
Body composition
Nutrients
Oxygen consumption
Swimming type
Swimming speed
Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)
Body composition
Nutrients
Oxygen consumption
Swimming type
Swimming speed
Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)
Genetics
Genetics
Heterozygosity
Heritability
Genetics
Heterozygosity
Heritability
Human related
Aquaculture systems
Aquaculture profiles
Strains
Ciguatera cases
Stamps, coins, misc.
Aquaculture systems
Aquaculture profiles
Strains
Ciguatera cases
Stamps, coins, misc.
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Estimates based on models
Preferred temperature (Ref. 115969): 20.2 - 27.9, mean 25.8 (based on 70 cells).
Phylogenetic diversity index (Ref. 82804): PD50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00398 (0.00236 - 0.00672), b=3.13 (2.99 - 3.27), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Trophic level (Ref. 69278): 3.6 ±0.57 se; based on food items.
Resilience (Ref. 120179): High, minimum population doubling time less than 15 months (K=0.72).
Fishing Vulnerability (Ref. 59153): Low to moderate vulnerability (31 of 100).
Climate Vulnerability (Ref. 125649): High to very high vulnerability (75 of 100).