Rexea solandri, Silver gemfish : fisheries

Rexea solandri (Cuvier, 1832)

Silver gemfish
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Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Rexea solandri   AquaMaps   Data sources: GBIF OBIS
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Image of Rexea solandri (Silver gemfish)
Rexea solandri
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Klassificering / Namn Populärnamn | synonymer | Catalog of Fishes(Släkte, Arter) | ITIS | CoL | WoRMS | Cloffa

> Scombriformes (Mackerels) > Gempylidae (Snake mackerels)
Etymology: Rexea: Latin, rex, rego = king.
Eponymy: Daniel Carl [Karl] Solander (1733–1782) was a Swedish naturalist and explorer who was one of Linnaeus’s pupils at Uppsala. [...] (Ref. 128868), visit book page.
More on author: Cuvier.

Miljö: miljö / Klimatzon / djupintervall / distributionsområde Ekologi

marina bentopelagisk; havsvandrande (Ref. 51243); djupintervall 100 - 800 m (Ref. 6181), usually 300 - 450 m (Ref. 28786). Deep-water; 25°S - 48°S, 109°E - 173°W (Ref. 6181)

Utbredning Territorier | FAO områden | Ekosystem | Förekomster | Prickkarta | Utplanteringar | Faunafri

Southwest Pacific: off southern, southwestern and southeastern Australia, Tasmania and New Zealand. Occurrence records from Madagascar and Japan need to be verified.

Längd vid första mognad / Storlek / Vikt / Ålder

Könsmognad: Lm 65.0, range 60 - 70 cm
Max length : 110 cm SL hane/ej könsbestämd; (Ref. 6181); publicerad maxvikt: 16.0 kg (Ref. 28838); rapporterad maxålder: 16 år (Ref. 28789)

Kort beskrivning Bestämningsnycklar | Morfologi | Morfometri

Taggstrålar i ryggfenan (totalt) : 18 - 19; Mjukstrålar i ryggfenan (totalt) : 16 - 19; Taggstrålar i analfenan: 2; Mjukstrålar i analfenan: 13 - 16; Ryggkotor: 36. Body entirely scaled at over 25 cm SL. Lateral line branching below the 5th to the 6th spine of the first dorsal fin. The upper branch reaches beyond the origin of the second dorsal fin, usually ending between the 8th to the 12th soft ray. The lower branch runs mid laterally, undulating above the anal-fin base. Body is bluish above, silvery below, a black blotch distally on two anterior membranes of the first dorsal fin, the rest of the fin is grayish.
Body shape (shape guide): elongated; Cross section: compressed.

Biologi     Ordlista (t.ex. epibenthic)

Found in schools on continental shelf and slope. They are normally caught close to the sea bed but probably move into midwater at times (Ref. 28786). Juveniles are pelagic, adults also occur near the surface off Tasmania and New Zealand. Dense schools of pre-spawners migrate along the continental slope at about 400 m during winter (Ref. 9563). Feed on fish, squid and crustaceans. The flesh is of good edible quality and especially tasty when smoked. In Australia, the eastern gemfish stock has been subjected to a prolonged period of poor recruitment which started in 1989 (Ref. 28843, 28786). This event resulted in a very significant decline in the gemfish resource. In Australia, efforts are now being channeled towards the recovery of the fishery.

Livscykel och parningsbeteende Könsmognad | Reproduktion | Lek | Ägg | Fekunditet | Larver

Larvae are caught in inshore waters which may indicate that gemfish move onto the shelf to spawn, or currents carry larvae in from offshore spawning grounds (Ref. 28786).

Huvudreferens Ladda upp dina referenser | referenser | Koordinator : Parin, Nikolay V. | Medarbetare

Nakamura, I. and N.V. Parin, 1993. FAO Species Catalogue. Vol. 15. Snake mackerels and cutlassfishes of the world (families Gempylidae and Trichiuridae). An annotated and illustrated catalogue of the snake mackerels, snoeks, escolars, gemfishes, sackfishes, domine, oilfish, cutlassfishes,. scabbardfishes, hairtails, and frostfishes known to date. FAO Fish. Synop. 125(15):136 p. (Ref. 6181)

Status på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))

Not Evaluated 

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Hot mot människor

  Harmless





Mänskliga användningsområden

Fiskeri: kommersiell
FAO - fiskeri: landings search; Publication: search | FIRMS - Stock assessments | FishSource | Havet omkring oss

Ytterligare information

Trofisk ekologi
Livsmedelsartiklar (preys)
Födosammansättning
Födointag
Matransoner
Predatorer
Ekologi
Ekologi
Populationsdynamik
Tillväxtparametrar
Max. åldrar / storlekar
Längd-vikt rel.
Längd-längd rel.
Längd-frekvenser
Massakonvertering
Rekrytering
Abundans
Livscykel
Reproduktion
Könsmognad
Mognad/Gills rel.
Fekunditet
Lek
Lekande aggregat
Ägg
Utveckling av ägg
Larver
Larvdynamik
Utbredning
Territorier
FAO områden
Ekosystem
Förekomster
Utplanteringar
BRUVS - Videor
Anatomi
Gälyta
Hjärna
Otolit
Fysiologi
Kroppssammansättning
Näringsämnen
Syreförbrukning
Typ av simning
Simhastighet
Visuella pigment
Ljud från fisk
Sjukdomar & Parasiter
Toxicitet (LC50)
Genetik
Genom
Genetik
Heterozygositet
Ärftlighet
Genetisk mångfald
Människorelaterad
Vattenbrukssystem
Vattenbruksprofiler
Avelslinjer
Ciguatera-fall
Frimärken, mynt, diverse.
Uppsökande verksamhet
Medarbetare
Taxonomi
Populärnamn
synonymer
Morfologi
Morfometri
Bilder
referenser
referenser

Verktyg

E-bok | Fälthandbok | Bestämningsnycklar | Längdfördelnings-verktyg | Livshistorie-verktyg | Prickkarta | Fångst-MSY |

Särskilda rapporter

Kontrollera för underhåll av akvarium | Kontrollera om det finns faktablad om arter | Kontrollera om det finns faktablad om vattenbruk

Ladda ner XML

Sammanfattande sida | Punktdata | Populärnamn | foton

Internet-källor

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: Släkte, Arter | DiscoverLife | ECOTOX | FAO - fiskeri: landings search; Publication: search | Faunafri | Fishipedia | Fishtrace | GloBI | Google Books | Google Scholar | Google | IGFA World Record | OneZoom | Open Tree of Life | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | TreeBase | Tree of Life | Wikipedia: Go, sök | World Records Freshwater Fishing | Zoologiskt register

Uppskattningar baserade på modeller

Index för fylogenetisk mångfald
(Ref. 82804) 		PD50 = 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight a=0.00339 (0.00188 - 0.00609), b=3.14 (2.98 - 3.30), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Trofisk nivå
(Ref. 69278) 		4.3   ±0.66 se; based on food items.
Generation time 5.4 (4.5 - 6.6) years. Estimated as median ln(3)/K based on 14 growth studies.
Resiliens
(Ref. 120179) 		Låg, lägsta populationsfördubblingstid 4,5-14 år (K=0.11-0.21; tm=3-6; tmax=16; Fec=500,000).
Rate of population increase Prior r = 0.43, 95% CL = 0.28 - 0.64, Based on 2 full stock assessments.
Sårbarhet i fisket
(Ref. 59153) 		High vulnerability (58 of 100). 🛈
Sårbarhet för klimatet
(Ref. 125649) 		High to very high vulnerability (65 of 100). 🛈
Priskategori
(Ref. 80766) 		Very high.
Näringsämnen
(Ref. 124155) 		Calcium = 11 [4, 29] mg/100g; Iron = 0.306 [0.113, 0.902] mg/100g; Protein = 15.6 [13.2, 18.3] %; Omega3 = 0.228 [0.114, 0.465] g/100g; Selenium = 25.8 [10.5, 61.4] μg/100g; VitaminA = 15.4 [3.4, 72.8] μg/100g; Zinc = 0.291 [0.195, 0.444] mg/100g (wet weight); based on nutrient studies.