Thailand country information

Common names: Chalarm Paag-laem
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: commercial | Ref: Compagno, L.J.V., 1984
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Known from the Gulf of Thailand, from Chol Buri south to Rayong (Ref. 1632). Also Ref. 244, 9997.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/th.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Monkolprasit, S., S. Sontirat, S. Vimollohakarn and T. Songsirikul, 1997
National Database:

Common names from other countries

Requin aiguille gris, Cazón picudo gris, قِرش صنارة رمادي, ... more

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (sharks and rays) > Carcharhiniformes (Ground sharks) > Carcharhinidae (Requiem sharks)
Etymology: Rhizoprionodon: rhiza (Gr.), root; prion (Gr.) saw; odon (Gr.), tooth, referring to teeth with serrated (saw-like) bases, or roots [replacement name for Rhizoprion Ogilby 1915, preoccupied by Rhizoprion Jourdan 1861 in mammals]. (See ETYFish); oligolinx: Per Springer, Greek for “short furrow,” referring to short upper labial furrow. (See ETYFish).

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

Marine; reef-associated; depth range 0 - 36 m (Ref. 9997). Tropical; 30°N - 18°S

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Indo-West Pacific: Persian Gulf east to Thailand, Indonesia, China, and Japan. Recorded from the Gulf of Carpentaria (Ref. 6871) and Palau (Ref. 244). This species is very close to Rhizoprionodon taylori, but is geographically separated from it (Ref. 244).

Length at first maturity / Size / Weight / Age

Maturity: L_m 43.2, range 32 - 65 cm
Max length : 84.5 cm TL male/unsexed; (Ref. 121648); 77.5 cm TL (female); max. published weight: 2.8 kg (Ref. 121648)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 0; Anal spines: 0. Position of anal fin origin well in front of second dorsal fin origin, long labial furrows, and short pectoral fins (Ref. 37816).

A little known inshore and offshore shark found on continental and insular shelves (Ref. 244). Found to depths of at least 36 m (Ref. 9997). Probably feeds on fishes, cephalopods, and crustaceans (Ref. 6871). Viviparous (Ref. 50449). Commonly caught by inshore demersal gillnet fisheries, especially off Java (Ref.58048). Utilized fresh and probably dried salted for human consumption (Ref. 244). Also used for fishmeal (Ref. 9997) and fins (Ref.58048). Minimum depth from Ref. 58018.

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

Viviparous, placental (Ref. 50449). With 3 to 5 young per litter (Ref. 244, 37816). Size at birth 20-30 cm TL (Ref. 9997, 37816). Distinct pairing with embrace (Ref. 205).

Main reference Upload your references | References | Coordinator : Compagno, Leonard J.V. | Collaborators

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 Red List Status (Ref. 130435)

Near Threatened (NT) (A2d); Date assessed: 23 March 2021

CITES (Ref. 128078)

Appendix II: International trade monitored

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: commercial

FAO(Publication : search) | FishSource |

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Internet sources

Estimates based on models

Preferred temperature (Ref. 115969): 26.2 - 29.3, mean 28.6 (based on 2593 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00331 (0.00264 - 0.00415), b=3.08 (3.04 - 3.12), in cm Total Length, based on LWR estimates for this species (Ref. 93245).

Trophic level (Ref. 69278): 4.1 ±0.55 se; based on food items.

Resilience (Ref. 120179): Very Low, minimum population doubling time more than 14 years (Fec=2).

Fishing Vulnerability (Ref. 59153): Moderate vulnerability (45 of 100).

Price category (Ref. 80766): Medium.

Rhizoprionodon oligolinx Springer, 1964