Iago omanensis, Bigeye houndshark : fisheries

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  Triakidae
- - Klassifizierung -
- Galeorhininae
- Triakidae
- Carcharhiniformes
- Elasmobranchii
- Chordata
- Animalia

Iago omanensis (Norman, 1939)

Bigeye houndshark

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Native range

This map was computer-generated and has not yet been reviewed.

Iago omanensis AquaMaps Data sources: GBIF OBIS

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Image of Iago omanensis (Bigeye houndshark)

Iago omanensis
Photo von FAO

Klassifizierung / Names Namen | Synonyme | Catalog of Fishes(Gattung, Arten) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (Haie und Rochen) (sharks and rays) > Carcharhiniformes (Ground sharks) > Triakidae (Houndsharks) > Galeorhininae
Etymology: Iago: Name of villain in Shakespeare’s Othello, because members of this genus have been a “troublemaker for systematists and hence a kind of villain” (See ETYFish); omanensis: -ensis, Latin suffix denoting place: Gulf of Oman, type locality (See ETYFish).
Eponymy: The name of this genus derives from Iago, the villain in Shakespeare’s play Othello. The authors say that this genus is “a troublemaker for systematists and hence a kind of villain”. (Ref. 128868), visit book page.
More on author: Norman.

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

seewasser bathydemersal; tiefenbereich 110 - 2195 m (Ref. 244). Deep-water; 30°N - 10°N

Verbreitung Länder | FAO Gebiete | Ecosystems | Vorkommen | Point map | Einführungen | Faunafri

Western Indian Ocean: Red Sea, Gulf of Aqaba (Ref. 9942) and Gulf of Oman to Pakistan and southwestern India. A low-finned, somewhat short-headed Iago is largely sympatric with Iago omanensis at least off southwestern India, and in the Bay of Bengal there is possibly a dwarf, omanensis-like Iago that may or may not be distinct.

Length at first maturity / Size / Gewicht / Alter

Maturity: L_m 55.7 range ? - ? cm
Max length : 37.0 cm TL Männchen/unbestimmt; (Ref. 244); 58.0 cm TL (female)

Kurzbeschreibung Bestimmungsschlüssel | Morphologie | Morphometrie

Brown or grey dorsally, lighter below; dorsal and caudal fins may have darker tips and leading edges (Ref. 5485).
Body shape (shape guide): elongated.

Found on the continental shelf and slope. Water temperature: 16-25°C. Oxygen level: 0.2-2.4 ppm. Feeds on bony fishes (mostly lanternfishes) and cephalopods. Sexual dimorphism by size exists. Viviparous (with a yolk-sac placenta), with probably 2 to 10 young in a litter. Utilized fresh for human consumption.

Life cycle and mating behavior Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven

Viviparous, placental (Ref. 50449). Distinct pairing with embrace (Ref. 205).

Hauptreferenz Upload your references | Referenzen | Koordinator : Compagno, Leonard J.V. | Partner

Compagno, L.J.V., 1984. FAO Species Catalogue. Vol. 4. Sharks of the world. An annotated and illustrated catalogue of shark species known to date. Part 2 - Carcharhiniformes. FAO Fish. Synop. 125(4/2):251-655. Rome: FAO. (Ref. 244)

IUCN Rote Liste Status (Ref. 130435: Version 2024-2)

nicht bedroht (LC) ; Date assessed: 20 May 2020

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

Harmless

Nutzung durch Menschen

Fischereien: kleinfischerei

FAO - Publication: search | FishSource |

Mehr Information

Trophic ecology
Food items (preys)
Nahrungszusammensetzung
Nahrungsaufnahme
Food rations
Räuber

Ecology
Ökologie

Population dynamics
Growth parameters
Max. ages / sizes
Length-weight rel.
Length-length rel.
Längenhäufigkeiten
Mass conversion
Rekrutierung
Dichte

Life cycle
Fortpflanzung
Geschlechtsreife
Maturity/Gills rel.
Fecundity
Ablaichen
Spawning aggregations
Eier
Eientwicklung
Larven
Larven Pop.Dyn.

Distribution
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FAO Gebiete
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Vorkommen
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Anatomy
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Physiology
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Nutrients
Oxygen consumption
Swimming type
Swimming speed
Visual pigments
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Diseases & Parasites
Toxicity (LC50s)

Genetics
Genetik
Heterozygosity
Vererbbarkeit

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Estimates based on models

Preferred temperature (Ref. 123201): 10 - 21.7, mean 14.6 °C (based on 100 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00427 (0.00180 - 0.01010), b=3.04 (2.84 - 3.24), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 4.2 ±0.3 se; based on diet studies.

Widerstandsfähigkeit (Ref. 120179): sehr niedrig, Verdopplung der Population dauert mehr als 14 Jahre. (K=0.48; Fec=2).

Fishing Vulnerability (Ref. 59153): Moderate vulnerability (43 of 100).

Preiskategorie (Ref. 80766): High.

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