Macau country information

Common names: [No common name]
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Occurrence needs to be confirmed (appears to be an Australian endemic although specimens from different regions are still to be compared carefully, Ref. 6871).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/mc.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Compagno, L.J.V., 1984
National Database:

Common names from other countries

Aiguillat nez court, Galludo ñato, Dogfish, ... more

Classification / Names Nombres comunes | Sinónimos | Catalog of Fishes(Género, Especie) | ITIS | CoL | WoRMS | Cloffa

Elasmobranquios (tiburones y rayas) (sharks and rays) > Squaliformes (Sleeper and dogfish sharks) > Squalidae (Dogfish sharks)
Etymology: Squalus: Genus name from Latin 'squalus' meaning shark (Ref. 6885, 27436).
More on author: Macleay.

Issue
Junior synonym Squalus acutipinnis Regan, 1908 is considered a valid species in Ref. 109601, 130168.

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

marino demersal; rango de profundidad 30 - 750 m (Ref. 27121), usually 80 - 300 m (Ref. 57911). Subtropical; 9°C - 23°C (Ref. 57911); 42°N - 60°S, 100°E - 140°W (Ref. 247)

Distribución Países | Áreas FAO | Ecosistemas | Ocurrencias, apariciones | Point map | Introducciones | Faunafri

Eastern Indian Ocean: previously considered to be an Australian endemic (Ref. 49645). Eastern Atlantic: confirmed to occur in the Mediterranean (Ref. 93472). Dogfishes presently referred to in current literature as Squalus megalops appear to belong to a complex of similar species. Specimens from the different regions still need to be compared carefully (Ref. 6871).

Length at first maturity / Tamaño / Peso / Age

Maturity: L_m 57.0, range 49 - 57 cm
Max length : 72.0 cm TL macho / no sexado; (Ref. 104718); 89.0 cm TL (female); edad máxima reportada: 32 años (Ref. 93445)

Short description Claves de identificación | Morfología | Morfometría

Espinas dorsales (total) : 2; Espinas anales: 0. A small dogfish with a short, angular snout and a small mouth almost as wide as the snout is long; body without spots; 1st dorsal fin spine over pectoral fins (Ref. 5578). Bronze-grey above, white below; dorsal fins with black tips and white edges but markings inconspicuous in adults (Ref. 5578).

Found on the outer continental shelves and upper slopes, on or near the bottom (Ref. 31367); sublittoral below 130 m (Ref. 11230). Young mostly pelagic off the outer shelves (Ref. 5578). Aggregations by sex are regularly observed (Ref. 6871). Feeds on bony fishes, shrimps and other crustaceans, cephalopods and other elasmobranchs (Ref. 247). Ovoviviparous (Ref. 205), with 2 to 4 young in a litter (Ref. 247). Gestation period is 2 years (Ref. 36731). Utilized for human consumption, the flesh most appealing dried salted or smoked (Ref. 6871). Also consumed fresh (Ref. 31367). Minimum depth reported from Ref. 6808.

Life cycle and mating behavior Maturities | Reproducción | Spawnings | Egg(s) | Fecundities | Larva

Distinct pairing with embrace (Ref. 205). Ovoviviparous, with 2 to 4 young in a litter. Gestation period is about two years. Size at birth 20-24 cm TL (Ref. 6871).

Main reference Upload your references | Referencias | Coordinador : Compagno, Leonard J.V. | Colaboradores

Last, P.R. and J.D. Stevens, 1994. Sharks and rays of Australia. CSIRO, Australia. 513 p. (Ref. 6871)

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 02 May 2019

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Pesquerías: comercial; pesca deportiva: si

FAO(pesquerías: species profile; publication : search) | FishSource |

Más información

Trophic ecology
componentes alimenticios
Diet compositions
Food consumptions
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Despredadores

Ecology
Ecología
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Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
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Length-frequencies
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Recruitments
Abundances

Life cycle
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Fecundities
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Egg(s)
Egg developments
Larva
Dinámica larvaria

Distribution
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BRUVS - Videos

Anatomy
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Otolitos

Physiology
Body compositions
Nutrients
Oxygen consumptions
Tipo de natación
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Visual pigment(s)
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Toxicities (LC50s)

Genetics
Genética
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Human related
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Perfiles de acuicultura
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Stamps, coins, misc.

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Taxonomy
Nombres comunes
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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 | Datos específicos | Nombres comunes | Photos

Fuentes de Internet

Estimates based on models

Preferred temperature (Ref. 115969): 12.8 - 22.8, mean 17.3 (based on 216 cells).

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

Bayesian length-weight: a=0.00398 (0.00251 - 0.00631), b=3.07 (2.93 - 3.21), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).

Nivel trófico (Ref. 69278): 4.3 ±0.3 se; based on diet studies.

Resiliencia (Ref. 120179): Muy bajo, población duplicada en un tiempo mínimo superior a 14 años (tmax = 32; Fec=2).

Fishing Vulnerability (Ref. 59153): High to very high vulnerability (68 of 100).

Price category (Ref. 80766): Medium.

Squalus megalops (Macleay, 1881)