Andaman and Nicobar Islands country information

Common names: [No common name]
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments:
National Checklist:
Country Information: ttp://en.wikipedia.org/wiki/Andaman_Island
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Rajan, P.T., C.R. Sreeraj and T. Immanuel, 2011
National Database:

Common names from other countries

Barbure à quatre doigts, Barbudo de cuatro dedos, White salmon, ... more

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

> Carangaria/misc (Various families in series Carangaria) > Polynemidae (Threadfins)
Etymology: Eleutheronema: Greek, eleutheros = free + Greek, nema = filament (Ref. 45335).
More on author: Shaw.

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

marino; acqua dolce; salmastro; amfidromo (Ref. 51243); distribuzione batimetrica 0 - 23 m (Ref. 6390). Tropical; 32°N - 26°S, 47°E - 154°E (Ref. 57343)

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

Indo-Pacific: Persian/Arabian Gulf, Pakistan, India and Sri Lanka (except the Red Sea and East Africa) to northern Australia and New Guinea. Replaced by Eleutheronema rhadinum (Jordan & Evermann, 1902), in East Asia (Japan, China, Viet Nam) (Ref. 41639).

Length at first maturity / Size / Peso / Age

Maturity: L_m ?, range 29 - ? cm
Max length : 200 cm TL maschio/sesso non determinato; (Ref. 3479); common length : 50.0 cm TL maschio/sesso non determinato; (Ref. 3479); peso massimo pubblicato: 145.0 kg (Ref. 4965)

Short description Chiavi di identificazione | Morfologia | Morfometria

Spine dorsali (totale) : 9; Raggi dorsali molli (totale) : 13 - 15; Spine anali: 3; Raggi anali molli: 14 - 16; Vertebre: 25. This species is distinguished with the following characters: second dorsal fin soft rays 14 (rarely 13 or 15) pectoral fin rays 16-18 (mode 17, rarely 15 or 19), pectoral filaments 4; pored lateral line scales 71-80 (mode 73); scale rows above lateral line 9-12, below 13-15 (14); vomer with deciduous tooth plates on both sides, except in juveniles (< ca. 7.0 cm SL); posterior part of maxilla deep, 3-4% of SL; short tooth plate extension onto lateral surface of lower jaw, 7-9% SL. Colour of upper sides of head and trunk with slight darkish silver tinge, becoming lighter in lower sides; anterior margins of first and second dorsal fins blackish, remaining parts translucent and slightly blackish, respectively; pectoral fin membranes vivid yellow in life, except in large specimens > ca 35 cm SL which is dusky yellow; pectoral filaments white; anterior margin of pelvic fin yellow and other parts white; base of caudal fin yellowish, other parts blackish (Ref. 41639, 57343).

Adults occur mainly over shallow muddy bottoms in coastal waters. Also enter rivers (Ref. 3479, 6390, 11230). Juveniles found in estuaries. During winter, adults ascend the rivers. They usually form loose schools, although larger fish are more often observed in pairs or singly (Ref. 6390). Feed on prawns and fish (largely members of Mugilidae, Engraulidae, and Sciaenidae) with occasional polychaetes. Frequency of crustaceans to fish in the diet varies seasonally. Larvae (7-30 mm TL) feed mainly on copepods and mysids but also take shrimps and prawn larvae (Ref. 57343). Juveniles (31-60 TL) feed on prawns shrimps and mysids (Ref. 57343). Protandrous hermaphrodites. Marketed fresh, frozen, and dried or salted.

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

In Australia, fish are males at 24-47 cm FL, hermaphrodites at 25-46 cm FL and females at 28-72 cm FL. On the northeast Queensland coast, most blue threadfin are females by 45-50 cm FL. Hermaphroditic blue threadfin develop fom 1-2-year-old fish, and females first appear as 2-3-year-old individuals (Ref. 28736). Male fish probably commence sex reversal immediately after spawning (ie about April-May) and this condition may persist until after the next spawning period (Ref. 28736). The progression from hermaphrodites to females is complete by the following season. There is little information on the larvae, although nursery areas are known to be lower estuaries, tidal swamps and lagoons, and shallows along the foreshores (Williams 1997).

Main reference Upload your references | Bibliografia | Coordinatore | Collaboratori

Motomura, H., Y. Iwatsuki, S. Kimura and T. Yoshino, 2002. Revision of the Indo-West Pacific polynemid fish genus Eleutheronema (Teleostei: Perciformes). Ichthyol. Res. 49(1):47-61. (Ref. 41639)

IUCN Red List Status (Ref. 130435)

Not Evaluated

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Pesca: elevato interesse commerciale; Acquacoltura: commerciale

FAO(Aquaculture systems: production; pesca: production; publication : search) | FishSource | Sea Around Us

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Check for Aquarium maintenance | Check for Species Fact Sheets | Check for Aquaculture Fact Sheets

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Fonti Internet

Estimates based on models

Preferred temperature (Ref. 115969): 25.2 - 29.3, mean 28.6 (based on 2815 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00617 (0.00400 - 0.00951), b=3.06 (2.93 - 3.19), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).

Trophic level (Ref. 69278): 4.1 ±0.5 se; based on diet studies.

Resilienza (Ref. 120179): Medio, tempo minimo di raddoppiamento della popolazione 1.4 - 4.4 anni (Fec=680,000; assuming tm>=2).

Prior r = 0.56, 95% CL = 0.37 - 0.84, Based on 2 data-limited stock assessments.

Fishing Vulnerability (Ref. 59153): Very high vulnerability (90 of 100).

Climate Vulnerability (Ref. 125649): Very high vulnerability (91 of 100).

Price category (Ref. 80766): High.

Eleutheronema tetradactylum (Shaw, 1804)

Common names from other countries

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

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

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

Length at first maturity / Size / Peso / Age

Short description Chiavi di identificazione | Morfologia | Morfometria

Biologia Glossario (es. epibenthic)

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

Main reference Upload your references | Bibliografia | Coordinatore | Collaboratori

IUCN Red List Status (Ref. 130435)

CITES (Ref. 128078)

CMS (Ref. 116361)

Threat to humans

Human uses

Informazioni ulteriori

Strumenti

Special reports

Download XML

Fonti Internet

Estimates based on models