South Africa country information

Common names: Slank sandkruiper, Slender guitarfish
Occurrence: native
Salinity: marine
Abundance: scarce (very unlikely) | Ref: Compagno, L.J.V., D.A. Ebert and M.J. Smale, 1989
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Known from KwaZulu to Port Shepstone, Natal (Ref. 3919, 5578). Caught by trawlers. Also Ref. 11228.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/sf.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Compagno, L.J.V., D.A. Ebert and M.J. Smale, 1989
National Database:

Common names from other countries

Slanke gitaarrog, Sale logardrai, 长犁头鳐, ... more

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

Elasmobranchi (squali e razze) (sharks and rays) > Rhinopristiformes (Shovelnose rays) > Rhinobatidae (Guitarfishes)
Etymology: Rhinobatos: Greek, rhinos = nose + Greek, batis, -idos = a ray (Raja sp.) (Ref. 45335).
More on author: Norman.

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

marino demersale; distribuzione batimetrica 75 - 253 m (Ref. 11228). Deep-water; 2°S - 31°S, 30°E - 43°E (Ref. 114953)

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

Western Indian Ocean: Kenya to Natal, South Africa.

Size / Peso / Age

Maturity: L_m ? range ? - ? cm
Max length : 127 cm TL maschio/sesso non determinato; (Ref. 3919)

Short description Chiavi di identificazione | Morfologia | Morfometria

A guitarfish with a narrow, sharply pointed snout and a narrow pectoral disc; nasal flaps extend only to the inner nostril edges (Ref. 5578). Plain olive-green above, without spots; prominent black blotch on underside of snout (Ref. 5578).

A rare and unknown species found offshore on the shelf (Ref. 5578). Ovoviviparous (Ref. 50449). Taken as bycatch of trawl and gillnet fisheries (Ref. 114953).

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

Exhibit ovoviparity (aplacental viviparity), with embryos feeding initially on yolk, then receiving additional nourishment from the mother by indirect absorption of uterine fluid enriched with mucus, fat or protein through specialised structures (Ref. 50449).

Main reference Upload your references | Bibliografia | Coordinatore : McEachran, John | Collaboratori

Compagno, L.J.V., 1986. Rhinobatidae. p. 128-131. In M.M. Smith and P.C. Heemstra (eds.) Smiths' sea fishes. Springer-Verlag, Berlin. (Ref. 3919)

IUCN Red List Status (Ref. 130435)

Data deficient (DD) ; Date assessed: 24 April 2018

CITES (Ref. 128078)

Appendix II: International trade monitored

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Pesca: di nessun interesse

FAO(Publication : search) | FishSource | Sea Around Us

Informazioni ulteriori

Trophic ecology
Prede
Diet compositions
Food consumptions
Food rations
Predatori

Ecology
Ecologia
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Population dynamics
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Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
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Abundances

Life cycle
Riproduzione
Maturities
Fecundities
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Egg(s)
Egg developments
Larve
Dinamica popolazioni larvali

Distribution
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Aree FAO
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BRUVS - Videos

Anatomy
Gill areas
Cervelli
Otoliths

Physiology
Body compositions
Nutrients
Oxygen consumptions
Swimming type
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Visual pigment(s)
Suoni dei Pesci
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Toxicities (LC50s)

Genetics
Genetica
Electrophoreses
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Human related
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Profili di acquacoltura
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Ciguatera cases
Stamps, coins, misc.

Outreach
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Taxonomy
Nomi Comuni
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Morfologia
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References
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Check for Aquarium maintenance | Check for Species Fact Sheets | Check for Aquaculture Fact Sheets

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Summary page | Point data | Nomi Comuni | Photos

Fonti Internet

Estimates based on models

Preferred temperature (Ref. 115969): 18 - 22.3, mean 19.8 (based on 23 cells).

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

Bayesian length-weight: a=0.00295 (0.00151 - 0.00578), b=3.13 (2.96 - 3.30), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.8 ±0.4 se; based on size and trophs of closest relatives

Resilienza (Ref. 120179): Basso, tempo minimo di raddoppiamento della popolazione 4.5 - 14 anni (Fec assumed to be <100).

Fishing Vulnerability (Ref. 59153): Very high vulnerability (76 of 100).

Rhinobatos holcorhynchus Norman, 1922