Elasmobranchii (haaien en roggen) (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); marshae: Named for Marsha Englebrecht for her innovative contributions to the field of elasmobranch husbandry..
Environment: milieu / climate zone / depth range / distribution range
Ecologie
marien; diepte 322 - 337 m (Ref. 119149). Deep-water
Verspreiding
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Western Pacific: the Philippines.
Grootte / Gewicht / Leeftijd
Maturity: Lm ? range ? - ? cm
Max length : 23.4 cm TL mannelijk / geslacht onbekend; (Ref. 119149); 19.2 cm TL (female)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
This species is a relatively small, slender, linear-denticled Etmopterus which can be distinguished from its closest congeners within the E. lucifer clade by the following set of characters: length of its luminescent lateral flank marking branches being relatively equal in length (anterior and posterior flank branches about equal in length); differs from the other species with relatively equal branch lengths (E. burgessi, E. evansi, E. pycnolepis) by having a whitish cheek blotch, purplish lateral body colouration sharply becoming black below line between pectoral and pelvic fins, its distinct pattern of paired dashes along the upper body and between pectoral and pelvic fins and the dark and light banding pattern on its caudal fin, and the central and upper caudal marking lengths distinctly different from the other 3 closely related species (Ref. 119149).
Occurs on sandy bottom. A 21.3 cm TL male was found to be maturing; birth size uncertain with 3 smallest individuals (9.7-11.6 cm TL) and the smallest with scar slightly open suggesting closeness to birth size (Ref. 119149).
Levenscyclus en paargedrag
Maturities | Voortplanting | Spawnings | Egg(s) | Fecundities | Larven
Ebert, D.A. and K.E. Van Heels, 2018. Etmopterus marshae sp. nov, a new lanternshark (Squaliformes: Etmopteridae) from the Philippine Islands, with a revised key to the Etmopterus lucifer clade. Zootaxa 4508(2):197-210. (Ref. 119149)
Status op de Rode Lijst van het IUCN (Ref. 130435)
Gevaar voor de mens
Harmless
Gebruik door de mens
Visserij: van geen belang
Tools
Speciale rapporten
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Internetbronnen
Estimates based on models
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00380 (0.00191 - 0.00758), b=3.09 (2.92 - 3.26), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Trofisch niveau (Ref.
69278): 3.9 ±0.5 se; based on size and trophs of closest relatives
Weerstandsvermogen (Ref.
120179): laag, minimale populatieverdubbelingstijd 4,5-14 jaar (Preliminary low fecundity).
Fishing Vulnerability (Ref.
59153): Low vulnerability (13 of 100).
