You can sponsor this page

Galeus polli Cadenat, 1959

African sawtail catshark
Waarneming toevoegen in Fish Watcher
Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Galeus polli   AquaMaps   Data sources: GBIF OBIS
Uploaden van uw Foto's en video's
Pictures | Google afbeelding
Image of Galeus polli (African sawtail catshark)
Galeus polli
Picture by FAO

Classificatie / Names Lokale namen | Synoniemen | Catalog of Fishes(Genus, Soort(en)) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (haaien en roggen) (sharks and rays) > Carcharhiniformes (Ground sharks) > Pentanchidae (Deepwater catsharks)
Etymology: Galeus: galeos, a small shark or dogfish according to Aristotle and others. (See ETYFish);  polli: In honor of Belgian ichthyologist Max Poll (1908-1991), who first brought attention to this species. (See ETYFish).

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

marien bathydemersaal; diepte 200 - 720 m (Ref. 244), usually 300 - 500 m (Ref. 9996). Deep-water; 26°N - 26°S

Verspreiding Landen | FAO regio's | Ecosystemen | Voorkomen | Point map | Introducties | Faunafri

Eastern Atlantic: southern Morocco to Namibia (Ref. 244).

Lengte bij maturiteit / Grootte / Gewicht / Leeftijd

Maturity: Lm 30.5  range ? - ? cm
Max length : 45.0 cm TL mannelijk / geslacht onbekend; (Ref. 5578)

Korte beschrijving Determinatiesleutels | Morfologie | Morfometrie

Dorsale stekels (totaal) : 0; Anale stekels: 0. A long-nosed, dwarf catshark with a narrow head, large eyes, and small labial furrows; upper caudal fin margin with prominent crest of enlarged sawtooth-like denticles (Ref. 5578). Pale brown, paler ventrally; juveniles have dark saddles that become less prominent in adults (Ref. 5510).

Biologie     Verklarende woordenlijst (bv. epibenthic)

Found on the outermost shelf and upper slope. Feeds mainly on small bony fish, including lanternfish, hakes, grenadiers, rockfish and lightfish, also squid and crustaceans. Ovoviviparous (Ref. 50449). Tolerates bottom with low oxygen levels (Ref. 5578). Utilized fresh (Ref. 244).

Levenscyclus en paargedrag Maturities | Voortplanting | Spawnings | Egg(s) | Fecundities | Larven

Eggs are sometimes fertilized internally by accident via close apposition of gonopores in otherwise oviparous fishes and may be retained within the female's body and complete some of the early stages of embryonic development. Embryos feed solely on yolk (Ref. 50449). Bears up to 12 young (Ref. 5578), size at birth 11-12 cm (Ref. 5510).

Hoofdreferentie Upload your references | Referenties | Coördinator | Medewerkers

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)

Status op de Rode Lijst van het IUCN (Ref. 130435)

  Kwetsbaar, zie IUCN Rode Lijst (VU) (A2d); Date assessed: 31 August 2020

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

  Harmless





Gebruik door de mens

Visserij: van minder commercieel belang
FAO - Publication: search | FishSource |

Meer informatie

Trophic ecology
Voedselitems
Diet compositions
Food consumptions
Food rations
Predatoren
Ecology
Ecologie
Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
Lengtefrequenties
Mass conversions
Recruitments
Abundances
Life cycle
Voortplanting
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
Larven
Larvale populatiedynamiek
Distribution
Landen
FAO regio's
Ecosystemen
Voorkomen
Introducties
BRUVS - Videos
Anatomy
Gill areas
Hersenen
Otolieten
Physiology
Body compositions
Nutrients
Oxygen consumptions
Zwemtype
Swimming speeds
Visual pigment(s)
Visgeluiden
Diseases / Parasites
Toxicities (LC50s)
Genetics
Genetica
Electrophoreses
Heritabilities
Human related
Aquaculture systems
Aquacultuurprofielen
Kweeklijnen
Ciguatera cases
Stamps, coins, misc.
Outreach
Medewerkers
References
Referenties

Tools

Speciale rapporten

Download XML

Internetbronnen

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Bekijk FishWatcher | CISTI | Catalog of Fishes: Genus, Soort(en) | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genoom, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: ga naar, zoek | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates based on models

Preferred temperature (Ref. 123201): 6.7 - 11, mean 8.7 °C (based on 38 cells).
Fylogenetische diversiteitsindex (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00229 (0.00140 - 0.00375), b=3.06 (2.92 - 3.20), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Trofisch niveau (Ref. 69278):  4.2   ±0.7 se; based on diet studies.
Weerstandsvermogen (Ref. 120179):  laag, minimale populatieverdubbelingstijd 4,5-14 jaar (Fec=12).
Fishing Vulnerability (Ref. 59153):  Low to moderate vulnerability (35 of 100).
Prijsklasse (Ref. 80766):   Low.
Nutrients (Ref. 124155):  Calcium = 10.4 [1.8, 67.5] mg/100g; Iron = 0.351 [0.075, 1.198] mg/100g; Protein = 17 [14, 20] %; Omega3 = 0.218 [0.089, 0.525] g/100g; Selenium = 6.92 [2.23, 20.67] μg/100g; VitaminA = 21.2 [4.5, 99.2] μg/100g; Zinc = 0.409 [0.190, 0.785] mg/100g (wet weight);