Carcharhinus porosus, Smalltail shark : fisheries

Carcharhinus porosus (Ranzani, 1839)

Smalltail shark
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Native range | All suitable habitat | Point map | Year 2050
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Carcharhinus porosus   AquaMaps   Data sources: GBIF OBIS
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Image of Carcharhinus porosus (Smalltail shark)
Carcharhinus porosus
Immagine di Carvalho Filho, A.

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

Elasmobranchi (squali e razze) (sharks and rays) > Carcharhiniformes (Ground sharks) > Carcharhinidae (Requiem sharks)
Etymology: Carcharhinus: karcharos (Gr.), sharp or jagged; rhinus, an ancient name for sharks, from rhine (Gr.), rasp, both words alluding to a shark's jagged, rasp-like skin (See ETYFish)porosus: Latin for pored or full of holes, probably referring to large and conspicuous pores behind eye (See ETYFish).

Ambiente: milieu / zona climatica / distribuzione batimetrica / gamma di distribuzione Ecologia

marino; salmastro demersale; distribuzione batimetrica ? - 36 m (Ref. 9253), usually 16 - 32 m (Ref. 96339). Subtropical; 33°N - 36°S, 116°W - 33°W (Ref. 55189)

Distribuzione Territories | Aree FAO | Ecosistemi | Presenze | Mappa dei ritrovamenti | Introduzioni | Faunafri

Western Atlantic: upper Gulf of Mexico, to southern Brazil; recorded from Uruguay (Ref. 58839). Specimens of porosus from Borneo, Viet Nam and Thailand may represent an undescribed small species of Carcharhinus.

Lunghezza alla prima maturità / Dimensione / Peso / Età

Maturità: Lm 70.0  range ? - 84 cm
Max length : 150 cm TL maschio/sesso non determinato; (Ref. 244); common length : 90.0 cm TL maschio/sesso non determinato; (Ref. 9253)

Breve descrizione Chiavi di identificazione | Morfologia | Morfometria

This species is a smooth-backed (lacking an interdorsal ridge) shark, with a low first dorsal fin originating over or behind the pectoral fin free rear tip. Adults' first dorsal fin anterior margin (from the origin of the fin to its apex) is as long as the distance from the apex to the free rear tip, so that apex makes an equilateral triangle with its origin and free rear tip; height of the first dorsal fin is about 8-9% of the total length. The second dorsal fin originates over the midpoint of the anal fin base. The caudal fin measures about one fourth of the total length. A series of conspicuous pores (hyomandibular pores) are located behind the eye. The upper teeth have long triangular cusps that become increasingly oblique towards the corners of the mouth, these have a weak notch or lack a notch on their medial edges, and a strong notch on the outer edges. Edges of the first four teeth have coarse serrations from the bases up to the notch and finer serrations from the notch to the tip and these coarse serrations disappear by the fifth or sixth tooth. Subsequent teeth have inner edges with uniform fine serrations from base to tip. The five or six outermost upper teeth have strongly oblique cusps with nearly straight inner margins and a strong notch on the outer margin while the lower teeth are erect and have cusps with a few coarse serrations at their bases and finer serrations towards the tips. Teeth number U:14-1-14; L:13-13. Dermal denticles are characteristic with a central strong ridge terminating in a long point, and two shorter ridges on wing-like sides; dorsal surface of the denticles has a coarse microsculpture. Body color gray above and dirty white below, unmarked fins (Ref. 86285).
Body shape (shape guide): fusiform / normal.

Biologia     Glossario (es. epibenthic)

Found in the continental shelves, preferably over muddy bottoms, and especially in estuaries. Feeds mainly on small fishes including young hammerhead and sharpnose sharks, and shrimps. Viviparous, with 2 to 7 young in a litter. Size at birth between 31 and 40 cm. Utilized fresh for human consumption and processed for fishmeal, and liver extracted for oil.

Ciclo vitale e comportamento di accoppiamento Maturità | Riproduzione | Deposizione | Uova | Fecondità | Larve

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

Riferimento principale Caricare le referenze | Bibliografia | Coordinatore : Compagno, Leonard J.V. | Collaboratori

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)

Stato della Lista Rossa IUCN (Ref. 130435: Version 2025-2 (Global))

  Critically Endangered (CR) (A2d); Date assessed: 21 June 2019

CITES


CMS (Ref. 116361)

Not Evaluated

Minaccia per l'uomo

  Harmless





Usi umani

Pesca: scarso interesse commerciale
FAO - pesca: landings search; Publication: search | FIRMS - Stock assessments | FishSource | Sea Around Us

Informazioni ulteriori

Ecologia trofica
Articoli alimentari (prede)
Alimentazione
Consumo di cibo
Razioni alimentari
Predatori
Ecologia
Ecologia
Dinamica della popolazione
Parametri di crescita
Età massima / dimensioni massime
Rapporto lunghezza-peso.
Lunghezza-lunghezza rel.
Lunghezza-frequenze
Conversione di massa
Reclutamento
Abbondanza
Ciclo di vita
Riproduzione
Maturità
Maturità/Gli occhielli sono relativi.
Fecondità
Deposizione
Aggregazioni riproduttive
Uova
Sviluppo delle uova
Larve
Dinamica popolazioni larvali
Distribuzione
Territories
Aree FAO
Ecosistemi
Presenze
Introduzioni
BRUVS - Video
Anatomia
Area branchiale
Cervello
Otolite
Fisiologia
Composizione corporea
Nutrienti
Consumo di ossigeno
Tipo di nuoto
Velocità di nuoto
Pigmenti visivi
Suono del pesce
Malattie e parassiti
Tossicità (LC50)
Genetica
Genome
Genetica
Eterozigosi
Ereditarietà
Diversità genetica
Legato all'uomo
Sistemi di acquacoltura
Profili di acquacoltura
Varietà
Casi di Ciguatera
Francobolli, monete, materiale vario.
Raggiungimento
Collaboratori
Bibliografia
Bibliografia

Strumenti

Rapporti speciali

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Fonti Internet

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: Genere, Specie | DiscoverLife | ECOTOX | FAO - pesca: landings search; Publication: search | Faunafri | Fishipedia | Fishtrace | GloBI | GoMexSI (interaction data) | Google Books | Google Scholar | Google | IGFA World Record | Database Nazionali | OneZoom | Open Tree of Life | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | TreeBase | Tree of Life | Wikipedia: Go, ricerca | World Records Freshwater Fishing | Record zoologico

Stime basate su modelli

Indice di diversità filogenetica
(Fonte Biblio. 82804)
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight a=0.00407 (0.00247 - 0.00672), b=3.06 (2.92 - 3.20), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
Livello trofico
(Fonte Biblio. 69278)
4.1   ±0.6 se; based on diet studies.
Generation time 14.5 ( na - na) years. Estimated as median ln(3)/K based on 2 growth studies.
Resilienza
(Fonte Biblio. 120179)
Molto basso, tempo minimo di raddoppiamento della popolazione più di 14 anni (K=0.08; tm=6; tmax=12; assuming Fec<10).
Vulnerabilità della pesca
(Ref. 59153)
Very high vulnerability (77 of 100). 🛈
Categoria di prezzo
(Ref. 80766)
Medium.