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Polydactylus quadrifilis (Cuvier, 1829)

Giant African threadfin
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Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Polydactylus quadrifilis   AquaMaps   Data sources: GBIF OBIS
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Pictures | تصوير گوگل
Image of Polydactylus quadrifilis (Giant African threadfin)
Polydactylus quadrifilis
Picture by Klimpel, S.

رده بندی / Names اسامي عام | مترادف | Catalog of Fishes(جنس, گونه ها) | ITIS | CoL | WoRMS | Cloffa

> Carangaria/misc (Various families in series Carangaria) > Polynemidae (Threadfins)
Etymology: Polydactylus: Greek, poly = a lot of + greek, daktylos = finger (Ref. 45335).
More on author: Cuvier.

Environment: milieu / climate zone / depth range / distribution range بوم شناسي

دريايي; آب شيرين; لب شور نزديك كف زي; تغييرات عمق 15 - 55 m (Ref. 10799). Tropical; 22°N - 5°S, 26°W - 13°E (Ref. 57343)

پراكنش كشورها | مناطق سازمان خوار و بار جهاني (FAO) | Ecosystems | ظهور | Point map | معرفي | Faunafri

Eastern Atlantic: Senegal to Angola (Ref. 57402). Also reported from Mauritania (Ref. 55783).

Size / Weight / سن

Maturity: Lm ?  range ? - ? cm
Max length : 200 cm TL جنس نر / بدون خواص جنسي; (Ref. 57402); common length : 150 cm TL جنس نر / بدون خواص جنسي; (Ref. 3659); بيشينه وزن گزارش شده: 75.0 kg (Ref. 7386)

توصيف مختصر كليدهاي شناسايي | ريخت شناسي | ريخت ستجي بوسيله انداره گيري

خارهاي باله پشتي (کل) : 9; شعاع نرم باله پشتي (کل) : 12 - 13; خارهاي باله مخرجي: 3; شعاع نرم باله مخرجي: 11 - 12. Diagnosis: pectoral fin with 4 threadlike filaments (Ref. 57402, 81658). Pectoral fin inserted very low on body, generally somewhat longer than upper part of fin (Ref. 57402).

زيست شناسي     واژه نامه (بعنوان مثال epibenthic)

Occurs in shallow coastal waters, over sandy and muddy bottoms, sometimes in brackish habitats (Ref. 57343, 81658). Enters estuaries (Ref. 57402), occasionally caught in fresh water (Ref. 57402, 81658). Very large specimens are only found in marine waters (Ref. 81658). Feeds on crustaceans and fishes (Ref. 10799, 81658). Flesh fairly tasteful (Ref. 57402).

Life cycle and mating behavior Maturities | تولید مثل | Spawnings | Egg(s) | Fecundities | توزاد ( لارو)

مآخذ اصلی Upload your references | مراجع | هماهنگ كننده | همكاران

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)

وضعيت در فهرست قرمز IUCN (Ref. 130435)

  حداقل نگرانی (LC) ; Date assessed: 15 July 2014

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

خطر برای انسان ها

  Harmless





استفاده انسانی

ماهي گيري – شيلات: تجاري; ماهي ها ي سرگرم كننده: بله
FAO - ماهي گيري – شيلات: landings; Publication: search | FishSource | Sea Around Us

اطلاعات بيشتر

Trophic ecology
اقلام غذايي
Diet compositions
Food consumptions
Food rations
شکارچیان
Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
نوسانات طولی
Mass conversions
Recruitments
Abundances
Life cycle
تولید مثل
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
توزاد ( لارو)
پويايي لاروي
Anatomy
Gill areas
مغزها
Otoliths
Physiology
Body compositions
Nutrients
Oxygen consumptions
Swimming type
Swimming speeds
Visual pigment(s)
صداهاي ماهي ها
Diseases / Parasites
Toxicities (LC50s)
Genetics
ژنتيك
Electrophoreses
Heritabilities
Human related
Aquaculture systems
نمايه هاي آبزي پروري
نژادها
Ciguatera cases
Stamps, coins, misc.
Outreach
همكاران
References
مراجع

ابزارها

گزارش های ويژه

بارگيری XML

منابع اينترنتي

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | فيش واچر را ببينيد | CISTI | Catalog of Fishes: جنس, گونه ها | DiscoverLife | ECOTOX | FAO - ماهي گيري – شيلات: landings; Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: ژنوم, نوکلئوتيد | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: برو, جستجو |
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World Records Freshwater Fishing | Zoological Record

Estimates based on models

Preferred temperature (Ref. 123201): 22.3 - 28, mean 26 °C (based on 48 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00661 (0.00510 - 0.00855), b=3.09 (3.03 - 3.15), in cm total length, based on LWR estimates for this species (Ref. 93245).
Trophic level (Ref. 69278):  4.0   ±0.66 se; based on food items.
Generation time: 2.7 ( na - na) years. Estimated as median ln(3)/K based on 2 growth studies.
جهندگی (Ref. 120179):  متوسط, كمينه زمان لازم براي دو برابر شدن جمعيت 4/1 – 4/4 سال (K=0.34-0.41; assuming tm=3-4).
Prior r = 0.57, 95% CL = 0.37 - 0.85, Based on 3 data-limited stock assessments.
Fishing Vulnerability (Ref. 59153):  Moderate vulnerability (44 of 100).
Climate Vulnerability (Ref. 125649):  Very high vulnerability (87 of 100).
طبقه قيمت (Ref. 80766):   High.
Nutrients (Ref. 124155):  Calcium = 59.4 [32.4, 109.8] mg/100g; Iron = 0.818 [0.418, 1.451] mg/100g; Protein = 20.1 [18.5, 21.7] %; Omega3 = 0.213 [0.132, 0.349] g/100g; Selenium = 79.1 [38.5, 162.9] μg/100g; VitaminA = 6.04 [2.46, 14.30] μg/100g; Zinc = 0.742 [0.514, 1.115] mg/100g (wet weight);