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Elasmobranchii (sharks and rays) > Myliobatiformes (Stingrays) > Urolophidae (Round rays)
Etymology: Urolophus: Greek, oura = tail + Greek, lophos = crest (Ref. 45335).
More on author: Günther.

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

Marine; bathydemersal; depth range ? - 236 m (Ref. 9863). Deep-water

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Western Central Pacific: Kei Islands, Moluccas, Indonesia.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 23.0 cm TL male/unsexed; (Ref. 9863)

Rare species, known from a depth of 236 m (Ref. 9863). Maximum length based on an immature male (Ref. 9863).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Compagno, L.J.V., 1997. Urolophidae. Round rays. In K.E. Carpenter and V. Niem (eds.) FAO Identification Guide for Fishery Purposes. The Western Central Pacific. (Ref. 9863)

IUCN Red List Status (Ref. 130435: Version 2024-1)

Data deficient (DD) ; Date assessed: 19 November 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: of no interest

FAO - Publication: search | FishSource |

More information

Trophic ecology
Food items
Diet composition
Food consumption
Food rations
Predators

Ecology
Ecology

Population dynamics
Growth parameters
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
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Abundance

Life cycle
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Maturity/Gills rel.
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Eggs
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Distribution
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Anatomy
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Genetics
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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00813 (0.00372 - 0.01775), b=3.08 (2.88 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.4 ±0.4 se; based on size and trophs of closest relatives

Resilience (Ref. 120179): Low, minimum population doubling time 4.5 - 14 years (Assuming fecundity<100).

Fishing Vulnerability (Ref. 59153): Low vulnerability (13 of 100).

Urolophus kaianus Günther, 1880