Polydactylus sextarius, Blackspot threadfin : fisheries, gamefish

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Polydactylus sextarius (Bloch & Schneider, 1801)

Blackspot 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 sextarius   AquaMaps   Data sources: GBIF OBIS
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Pictures | تصوير گوگل
Image of Polydactylus sextarius (Blackspot threadfin)
Polydactylus sextarius
Picture by Randall, J.E.

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 authors: Bloch & Schneider.

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

دريايي; لب شور نزديك كف زي; هردو رو (Ref. 51243); تغييرات عمق 16 - 73 m (Ref. 57343). Tropical; 37°N - 11°S, 75°E - 149°E

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

Eastern Indian Ocean and Western Pacific: southwestern India to Papua New Guinea, north to Japan. May rarely occur in the Philippines, eastern Indonesia, and Papua New Guinea (Ref. 57343). Not in Red Sea (Ref. 84159).

Size / Weight / سن

Maturity: Lm ?  range ? - ? cm
Max length : 30.0 cm TL جنس نر / بدون خواص جنسي; (Ref. 30573); common length : 20.0 cm TL جنس نر / بدون خواص جنسي; (Ref. 30573)

توصيف مختصر 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 - 13; مهره ها: 24. With 6 pectoral filaments; uppermost not reaching posterior tip of pectoral fin. Pectoral fin, rays moderate, 19-25% of SL; all rays branched except uppermost 1 or 2. Second dorsal spine short, 5-8% of SL. Atrophied swim bladder, like a string. A large black spot anteriorly on lateral line (Ref. 40958, 41110). No upper lip; lower lip well-developed except at symphysis. Operculum broadly rounded; preoperculum coarsely serrated. Color is golden-olive above ,silvery below. A large oval blotch is at the start of the lateral line (Ref. 561).

زيست شناسي     واژه نامه (بعنوان مثال epibenthic)

A marine species found on sandy and muddy bottoms of the continental shelf (Ref. 4340, 11230, 57343). Frequently enters estuaries (Ref. 9685, 11230). Feeds mainly on small crustaceans (especially shrimps), fishes and benthic organisms; also on sponges and fish scales (Ref. 9685). The progression in this hermaphrodite is protandrous, changing from a juvenile to a hermaphrodite, then a female (Ref. 9685).

Life cycle and mating behavior بلوغ | تولید مثل | تخم ریزی | تخم ها | Fecundity | 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)


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 - Publication: search | FishSource |

اطلاعات بيشتر

اسامي عام
مترادف
سوخت و ساز
شکارچیان
سم شناسي بوم زيستي
تولید مثل
بلوغ
تخم ریزی
Spawning aggregation
Fecundity
تخم ها
نمو تخم
مراجع
آبزي پروري
نمايه آبزي پروري
نژادها
ژنتيك
Electrophoreses
وارث
بيماري ها
فرآوری
Nutrients
Mass conversion
همكاران
عکس ها
Stamps, Coins Misc.
صداها
سيگواترا
سرعت
نوع شناگری
منطقه آبششي
Otoliths
مغزها
بینایی

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 - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: ژنوم, نوکلئوتيد | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | پايگاه هاي داده ها | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: برو, جستجو | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Preferred temperature (Ref. 123201): 23.5 - 28.4, mean 27.7 °C (based on 227 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01479 (0.00929 - 0.02354), b=3.04 (2.91 - 3.17), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Trophic level (Ref. 69278):  3.8   ±0.57 se; based on food items.
Generation time: 3.0 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies.
جهندگی (Ref. 120179):  متوسط, كمينه زمان لازم براي دو برابر شدن جمعيت 4/1 – 4/4 سال (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low to moderate vulnerability (31 of 100).
طبقه قيمت (Ref. 80766):   Very high.