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Herwigia kreffti (Nielsen & Larsen, 1970)

Krefft's smooth-head
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Herwigia kreffti   AquaMaps   Data sources: GBIF OBIS
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Image of Herwigia kreffti (Krefft\
Herwigia kreffti
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Classification / Names Κοινά ονόματα | Συνώνυμα | Catalog of Fishes(Γένος, Είδη) | ITIS | CoL | WoRMS | Cloffa

> Alepocephaliformes (Slickheads and tubeshoulders.) > Alepocephalidae (Slickheads)
Etymology: More on authors: Nielsen & Larsen.

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

Θαλασσινό(ά) βαθυπελαγικό(ς); εύρος βάθους 1000 - 3200 m (Ref. 4460). Deep-water; 53°N - 49°S, 32°W - 154°W

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

Eastern Atlantic: scattered records from 53°N south to Azores, then from Morocco southward to Namibia. Eastern Pacific: off Hawaii. Indo-West Pacific: including Australia (Ref. 7300) and New Zealand (Ref. 5755). Elsewhere, Indian Ocean.

Μέγεθος / Βάρος / Age

Maturity: Lm ?  range ? - ? cm
Max length : 40.0 cm SL αρσενικό/απροσδιόριστο; (Ref. 4460)

Short description Κλείδες προσδιορισμού | Μορφολογία | Μορφομετρία

Ραχιαίες άκανθες (συνολικά) : 0; Μαλακές ραχιαίες ακτίνες (συνολικά) : 15 - 18; Εδρικές άκανθες: 0; Μαλακές εδρικές ακτίνες: 13 - 15.

Βιολογία     Γλωσσάρι (π.χ. epibenthic)

Bathypelagic to benthopelagic (Ref. 4460). Mesopelagic at 1000-1600 m (Ref. 58302). Bottom trawl captures between 1,000-1,600 m and mid-water captures between 1,600-3,200 m (Ref. 4460).

Life cycle and mating behavior Maturities | Αναπαραγωγή | Spawnings | Egg(s) | Fecundities | Προνύμφες

Main reference Upload your references | Αναφορές | Συντονιστής | Συνεργάτες

Markle, D.F. and J.-C. Quéro, 1984. Alepocephalidae (including Bathylaconidae, Bathyprionidae). p. 228-253. In P.J.P. Whitehead, M.-L. Bauchot, J.-C. Hureau, J. Nielsen and E. Tortonese (eds.) Fishes of the North-eastern Atlantic and the Mediterranean. UNESCO, Paris. Vol. 1. (Ref. 4736)

IUCN Red List Status (Ref. 130435)

  Least Concern (LC) ; Date assessed: 11 July 2012

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

αλιεία: χωρίς ενδιαφέρον
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Περισσότερες πληροφορίες

Trophic ecology
Τροφικά αντικείμενα
Diet compositions
Food consumptions
Food rations
Θηρευτές
Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversions
Recruitments
Abundances
Life cycle
Αναπαραγωγή
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
Προνύμφες
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Ήχοι ψαριών
Diseases / Parasites
Toxicities (LC50s)
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Γενετική
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Human related
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Προφίλ υδατοκαλλιεργειών
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Stamps, coins, misc.
References
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Διαδικτυακές πηγές

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: Γένος, Είδη | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Εθνικές βάσεις δεδομένων | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Δέντρο Ζωής | Wikipedia: Go, αναζήτηση | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Preferred temperature (Ref. 123201): 2.2 - 4.9, mean 3 °C (based on 2122 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 1.0000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00347 (0.00164 - 0.00733), b=3.19 (3.00 - 3.38), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Τροφικό Επίπεδο (Ref. 69278):  3.5   ±0.5 se; based on size and trophs of closest relatives
Ελαστικότητα (Ref. 120179):  Μεσαίο(α), ελάχιστος χρόνος για διπλασιασμό πληθυσμού 1,4 - 4,4 έτη (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Moderate vulnerability (39 of 100).