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Polydactylus macrochir (Günther, 1867)

King threadfin
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Native range | All suitable habitat | Point map | Year 2050
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Polydactylus macrochir   AquaMaps   Data sources: GBIF OBIS
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Image of Polydactylus macrochir (King threadfin)
Polydactylus macrochir
Picture by Cook, D.C.

Classification / Names आम नाम | उपशब्द | Catalog of Fishes(वर्ग, प्रजाति) | 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: Günther.

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

समुद्री; स्वच्छ जल, अलवण जल; खारा ड़िमरसल; कैटाड़रोमस (Ref. 51243); गहराई सीमा 0 - 6 m (Ref. 57343). Tropical; 5°S - 28°S, 121°E - 154°E (Ref. 57343)

वितरण देश | ऐफ ऐ ओ क्षेत्र | Ecosystems | संयोग | Point map | भूमिका | Faunafri

Indo-West Pacific: southern New Guinea and northern Australia.

आकार / वज़न / Age

Maturity: Lm ?  range ? - ? cm
Max length : 170 cm FL पुल्लिंग / अलिंग; (Ref. 6390); common length : 48.0 cm FL पुल्लिंग / अलिंग; (Ref. 9685); अधिकतम प्रकाशित वज़न: 45.0 kg (Ref. 9685); अधिकतम सूचित उम्र: 20 वर्षो (Ref. 6390)

Short description पहचान कुंजी | आकृति विज्ञान | मौरफोमैटरिक्स

Body without spots nor stripes. Pectoral fin rays unbranched; 4th pectoral filament long, 40-53% of SL. Second spine of dorsal fin more robust than the rest. Posterior margin of maxilla extending considerably beyond level of posterior margin of adipose eyelid. Lower tip of 7th proximal pterygiophore of 1st dorsal fin directed backward. Lateral squamation on caudal fin unbranched (Ref. 40970).

जीवविज्ञान     शब्द संग्रह (उदाहरणार्थ epibenthic)

Found in shallow, turbid waters coastal waters, estuaries, mangrove creeks, and mangrove-lined rivers (Ref. 57343), over sandbanks and mud substrates (Ref. 6390). Usually forms loose schools, although larger fish are more often observed in pairs or singly (Ref. 6390). Feeds on prawns and fish. Protandrous hermaphrodites.

Life cycle and mating behavior Maturities | पुनरुत्पत्ति | Spawnings | Egg(s) | Fecundities | लार्वा

King threadfin between 70 cm and 100 cm FL may be transitional hermaphrodites (they possess mature male and immature female reproductive tissue, and function as males (Ref. 28736)). However, most king threadfin less than 80 cm FL are males and most more than 95 cm FL are females (Ref. 28737). Transitional king threadfin are most often found in the months of June, July, August and September (Ref. 6390). There is little information on the larvae, although nursery areas are known to be inshore, shallow and of low salinity (Ref. 6390).

Main reference Upload your references | संदर्भ | संयोजक | सहयोगीयो

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)


CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

मात्स्यिकी: व्यापारिक; आखेट मत्स्य: हां
FAO - Publication: search | FishSource |

अधिक जानकारी

Trophic ecology
खाद्य पदार्थ
Diet compositions
Food consumptions
Food rations
परभक्षी
Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversions
Recruitments
Abundances
Life cycle
पुनरुत्पत्ति
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
लार्वा
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Nutrients
Oxygen consumptions
Swimming type
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Visual pigment(s)
मत्स्य आवाज़े
Diseases / Parasites
Toxicities (LC50s)
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आनुवंशिकी
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References
संदर्भ

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इंटरनेट स्रोत

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: वर्ग, प्रजाति | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | 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: Go, खोज | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Preferred temperature (Ref. 123201): 24.8 - 28.9, mean 28 °C (based on 575 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00676 (0.00311 - 0.01469), b=3.10 (2.93 - 3.27), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245).
Trophic level (Ref. 69278):  4.0   ±0.4 se; based on diet studies.
Generation time: 7.3 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies.
लौटाव (Ref. 120179):  निम्न, न्यूनतम जनसंख्या दुगनी होने का समय 4.5 - 14 वर्ष। (tmax=20).
Fishing Vulnerability (Ref. 59153):  High to very high vulnerability (66 of 100).
Price category (Ref. 80766):   Very high.