Klassifizierung / Names
Namen | Synonyme | Catalog of Fishes(Gattung, Arten) | ITIS | CoL | WoRMS | Cloffa
>
Argentiniformes (Marine smelts) >
Microstomatidae (Pencil smelts)
Etymology: ahlstromi: Named for E.H. Ahlstrom.
Eponymy: Fridtjof Nansen (1861–1930) was a Norwegian explorer, scientist, diplomat and later recipient of the Nobel Peace Prize. [...] Dr Elbert Halvor Ahlstrom (1910–1979) was an ichthyologist and biologist who spent more than four decades working for the National Fisheries Service. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Ökologie
seewasser bathypelagisch; tiefenbereich 0 - 754 m (Ref. 5123). Deep-water; 35°N - 20°N
Indo-West Pacific.
Size / Gewicht / Alter
Maturity: Lm ?  range ? - ? cm
Max length : 9.5 cm SL Männchen/unbestimmt; (Ref. 5123)
Kurzbeschreibung
Bestimmungsschlüssel | Morphologie | Morphometrie
Rückenflossenweichstrahlen (insgesamt) : 8 - 9; Afterflossenweichstrahlen: 7 - 8; Wirbelzahl: 35 - 36. Head relatively large than body; eye large. Branchiostegal rays 3. Ratio of caudal peduncle length to caudal peduncle depth less than 1.5 (Ref. 5123).
The holotype which is about 9.5 cm SL is an adult bearing eggs (Ref. 5123).
Life cycle and mating behavior
Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven
Kawaguchi, K. and J.L. Butler, 1984. Fishes of the genus Nansenia (Microsomatidae) with descriptions of seven new species. Los Angeles County Mus. Contr. Sci. 352:1-22. (Ref. 5123)
IUCN Rote Liste Status (Ref. 130435: Version 2024-1)
Bedrohung für Menschen
Harmless
Nutzung durch Menschen
Tools
Zusatzinformationen
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Internet Quellen
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).