Planonasus parini, Dwarf False Catshark

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  Planonasus
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  Pseudotriakidae
- - Classification -
- Pseudotriakidae
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- Chordata
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Planonasus parini Weigmann, Stehmann & Thiel, 2013

Dwarf False Catshark

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Planonasus parini
Female picture by Weigmann, S.

Classification / Names Κοινά ονόματα | Συνώνυμα | Catalog of Fishes(Γένος, Είδη) | ITIS | CoL | WoRMS | Cloffa

Ελασμοβράγχιοι (καρχαρίες και σαλάχια) (sharks and rays) > Carcharhiniformes (Ground sharks) > Pseudotriakidae (False catsharks)
Etymology: Planonasus: planus (L.), flat; nasus (L.), nose, referring to its soft, flat snout (See ETYFish); parini: In honor of the late Nikolai Vasil’evich Parin (1932-2012), P. P. Shirov Institute of Oceanology, Russian Academy of Sciences, ichthyologist and chief scientist of the “memorable” cruise 17 of the research vessel Vityaz in 1988/89, during which holotype was collected (See ETYFish).
Eponymy: Professor Dr Nikolai Vasilyevich Parin (1932–2012) of the P. [...] (Ref. 128868), visit book page.

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

Θαλασσινό(ά) βαθύβιο(ς); εύρος βάθους 1000 - 1120 m (Ref. 92921). Deep-water

Κατανομή Χώρες | Περιοχές FAO | Οικοσυστήματα | Παρουσίες | Point map | Εισαγωγές | Faunafri

Northwestern Indian Ocean: off the Socotra Islands, south of Yemen and east of the Horn of Africa.

Μέγεθος / Βάρος / Age

Maturity: L_m ? range ? - ? cm
Max length : 53.4 cm TL (female); μεγ. δημοσιευμένο βάρος: 560.00 g (Ref. 92921)

Short description Κλείδες προσδιορισμού | Μορφολογία | Μορφομετρία

This small deep-water pseudotriakid species is distinguished by the following set of characters: soft body; bell-shaped head with a broadly parabolic snout; preorbital snout length 1.5-1.9 times the eye length; preoral length 0.7-0.8 times the mouth width, 1.4-1.5 times the prenarial snout length; eye length 1.9-2.3 times the nostril width; relatively broad head, width at middle gill slits 10-16% of TL; preorbital snout length 1.0-1.7 times the interorbital space (integumental) and 2.1-2.3 (skeletal), respectively; head length 2.0-2.5 times the mouth width, 9.8-10.9 times the nostril width, 2.8-3.3 times the length of preventral caudal-fin margin; length of pectoral-fin anterior margin 2.1-2.2 times the pectoral base length; length of first dorsal-fin inner margin 0.4-0.5 times the pectoral-fin base length; second dorsal-fin base length 13% of TL; color: plain dusky with fins and ventral snout somewhat darker, free rear tip of first dorsal fin marked white; each jaw with about 110-120 rows of very small tri- to multicuspidate teeth; monospondylous trunk vertebrae centra 50-52, diplospondylous precaudal centra 41, total centra about 115-140 (Ref. 92921).

Life cycle and mating behavior Γεννητική Ωρίμανση | Αναπαραγωγή | Γεννοβολία | Αβγά | Γονιμότητα | Προνύμφες

Main reference Upload your references | Αναφορές | Συντονιστής | Συνεργάτες

Weigmann, S., M.F.W. Stehmann and R. Thiel, 2013. Planonasus parini n. g. and n. sp., a new genus and species of false cat sharks (Carchariniformes, Pseudotriakidae) from the deep northwestern Indian Ocean off Socotra Islands. Zootaxa 3609(2):163-181. (Ref. 92921)

IUCN Red List Status (Ref. 130435: Version 2024-2)

Least Concern (LC) ; Date assessed: 09 February 2017

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

Περισσότερες πληροφορίες

Trophic ecology
Τροφικά αντικείμενα
Σύσταση δίαιτας
Κατανάλωση τροφής
Food rations
Θηρευτές

Ecology
Οικολογία

Population dynamics
Παράμετροι Αύξησης
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Στρατολόγηση
Αφθονία

Life cycle
Αναπαραγωγή
Γεννητική Ωρίμανση
Maturity/Gills rel.
Γονιμότητα
Γεννοβολία
Spawning aggregations
Αβγά
Egg development
Προνύμφες
Δυναμική προνυμφών

Distribution
Χώρες
Περιοχές FAO
Οικοσυστήματα
Παρουσίες
Εισαγωγές
BRUVS - Videos

Anatomy
Επιφάνεια βραγχίων
Brain
Otolith

Physiology
Body composition
Nutrients
Κατανάλωση οξυγόνου
Κολυμβητικός τύπος
Ταχύτητα κολύμβησης
Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)

Genetics
Γενετική
Heterozygosity
Κληρονομικότητα

Human related
Aquaculture systems
Προφίλ υδατοκαλλιεργειών
Στελέχοι
Ciguatera cases
Stamps, coins, misc.

Outreach
Συνεργάτες

Taxonomy
Κοινά ονόματα
Συνώνυμα
Μορφολογία
Μορφομετρία
Φωτογραφίες

References
Αναφορές

Εργαλεία

Special reports

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Summary page | Σημειακά στοιχεία | Κοινά ονόματα | Photos

Διαδικτυακές πηγές

Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 1.0625 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00170 (0.00067 - 0.00428), b=3.21 (2.99 - 3.43), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Τροφικό Επίπεδο (Ref. 69278): 3.9 ±0.4 se; based on size and trophs of closest relatives

Fishing Vulnerability (Ref. 59153): Moderate vulnerability (41 of 100).

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