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Diaphus knappi Nafpaktitis, 1978

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Diaphus knappi   AquaMaps   Data sources: GBIF OBIS
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Diaphus knappi
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Taiwan country information

Common names: [No common name]
Occurrence: native
Salinity: marine
Abundance: scarce (very unlikely) | Ref: Wang, J.T.-M. and C.-T. Chen, 2001
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: live export: yes;
Comments: Occurs in southwestern Taiwan (Ref. 39633). Museum: Tashi, ASIZP 057137 (3, 6.5-7.5 cm SL) (Ref. 48453).
National Checklist: Taiwan
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/tw.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Wang, J.T.-M. and C.-T. Chen, 2001
National Database: The Fish Database of Taiwan

Common names from other countries

Namida-hadaka, 克氏眶灯鱼, 奈氏眼眶鱼, ... more

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Actinopteri (ray-finned fishes) > Myctophiformes (Lanternfishes) > Myctophidae (Lanternfishes) > Diaphinae
Etymology: Diaphus: Greek, dis, dia = through + Greek, physa, phyo = to beget, to have as offspring (Ref. 45335).

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

Marine; benthopelagic; depth range 122 - 664 m (Ref. 4066).   Tropical

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Western Indian Ocean: off southwest Madagascar, Saya de Malha Bank (07°13'S, 60°05'E), and southeast of Zanzibar. Pacific Ocean: Kyushu-Palau Ridge (Ref. 559), Taiwan (Ref. 39633), the Savannah Seamount Chain (off Tahiti) (Ref. 48453), and 19°14'S, 151°28'W in the South Pacific.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 17.3 cm SL male/unsexed; (Ref. 4066)

Short description Morphology | Morphometrics

Dorsal spines (total): 0; Dorsal soft rays (total): 15; Anal spines: 0; Anal soft rays: 15 - 16

Biology     Glossary (e.g. epibenthic)

Pseudoceanic species.

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator : Paxton, John | Collaborators

Hulley, P.A., 1986. Myctophidae. p. 282-321. In M.M. Smith and P.C. Heemstra (eds.) Smiths' sea fishes. Springer-Verlag, Berlin. (Ref. 4066)

IUCN Red List Status (Ref. 123251)

  Least Concern (LC) ; Date assessed: 26 June 2018

CITES (Ref. 123416)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless




Human uses

FAO(Publication : search) | FishSource |

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Internet sources

Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes(genus, species) | DiscoverLife | ECOTOX | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GloBI | GOBASE | | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | National databases | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Scirus | SeaLifeBase | Tree of Life | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates based on models

Preferred temperature (Ref. 115969): 9.7 - 18.2, mean 14 (based on 93 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00550 (0.00246 - 0.01227), b=3.05 (2.84 - 3.26), in cm Total Length, based on LWR estimates for this Subfamily-BS (Ref. 93245).
Trophic level (Ref. 69278):  3.2   ±0.3 se; based on size and trophs of closest relatives
Resilience (Ref. 69278):  Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (11 of 100) .