Mozambique country information

Common names: [No common name]
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Type locality of Etmopterus alphus, Madagascar Ridge. Known from approximately east of the Zambezi River (472-558 m) and on the southern end of the Madagascar Ridge at Walters Shoals (650-792 m) (Ref. 112348).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/mz.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Ebert, D.A., N. Straube, R.W. Leslie and S. Weigmann, 2016
National Database:

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Klassifizierung / Names Namen | Synonyme | Catalog of Fishes(Gattung, Arten) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (Haie und Rochen) (sharks and rays) > Squaliformes (Sleeper and dogfish sharks) > Etmopteridae (Lantern sharks)
Etymology: Etmopterus: Greek, ethmos, -ou = sieve or ethmoides bone + Greek, pteron = wing, fin (Ref. 45335); alphus: Name from Latin 'alphus'; referring to the characteristic white spot on the cheeks of this species..

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

seewasser; tiefenbereich 472 - 792 m (Ref. 112348). Subtropical; 18°S - 34°S, 37°E - 45°E

Verbreitung Länder | FAO Gebiete | Ecosystems | Vorkommen | Point map | Einführungen | Faunafri

Western Indian Ocean: Mozambique.

Size / Gewicht / Alter

Maturity: L_m ? range ? - ? cm
Max length : 33.6 cm TL Männchen/unbestimmt; (Ref. 112348); 39.0 cm TL (female)

Kurzbeschreibung Morphologie | Morphometrie

Wirbelzahl: 84 - 90. This relatively small, slender species of linear-denticled Etmopterus can be separated from its closest congeners within the E. lucifer clade by a combination of characteristics: length of its anterior flank markings being much shorter than its posterior branch; black flank markings sharply demarcated by surrounding lighter to whitish lateral markings; prominent white spot on each cheek; a single white stripe extending the length of the midback; 2 parallel rows of prominent dark pores extending between pectoral and pelvic fins; its closest geographic congener E. sculptus has its anterior branch longer than its posterior branch, with a thinner posterior flank marking, 0.2-0.4% (vs. 0.6-0.9% TL in E. alphus), a higher spiral valve count 8-9 (vs. 5-7 in E. alphus); it differs from its closest morphological congener, the Australasian E. molleri by its shorter anterior (6.0-10.6% vs. 8.0-11.5% TL) and posterior (9.3-12.7% vs. 11.0-15.4% TL) flank-marking branches, biogeography and genetics (Ref. 112348).

Life cycle and mating behavior Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven

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Ebert, D.A., N. Straube, R.W. Leslie and S. Weigmann, 2016. Etmopterus alphus n. sp.: a new lanternshark (Squaliformes: Etmopteridae) from the southwestern Indian Ocean. Afr. J. Mar. Sci. 38(3):329-340. (Ref. 112348)

IUCN Rote Liste Status (Ref. 130435)

nicht bedroht (LC) ; Date assessed: 24 April 2018

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

Harmless

Nutzung durch Menschen

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01122 (0.00514 - 0.02450), b=3.04 (2.87 - 3.21), in cm Total Length, based on all LWR estimates for this body shape (Ref. 93245).

Trophic level (Ref. 69278): 4.1 ±0.5 se; based on size and trophs of closest relatives

Widerstandsfähigkeit (Ref. 120179): niedrig, Verdopplung der Population dauert 4,5 - 14 Jahre. (Preliminary low fecundity).

Fishing Vulnerability (Ref. 59153): Low to moderate vulnerability (29 of 100).

Etmopterus alphus Ebert, Straube, Leslie & Weigmann, 2016