Elasmobranchii (hajar och rockor) (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); brosei: Named for the late Barrie Rose, affectionately known as 'Brose' to his friends.
Eponymy: ‘Brose’ was a nickname of Barrie Rose (1947–2016), a South African naturalist and tour guide (see Barrie). (Ref. 128868), visit book page.
Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
marina pelagic-oceanic; djupintervall 480 - 1200 m (Ref. 124468). Subtropical
Southeast Atlantic and Southwest Indian Ocean: South Africa, southern Mozambique and Madagascar Ridge.
Längd vid första mognad / Storlek / Vikt / Ålder
Könsmognad: Lm ?, range 38 - ? cm
Max length : 45.1 cm TL hane/ej könsbestämd; (Ref. 124468); 50.9 cm TL (female)
Kort beskrivning
Bestämningsnycklar | Morfologi | Morfometri
Ryggkotor: 85 - 88. This relatively large linear-denticled lanternshark of the E. lucifer clade is distinguished from all other clade members, except for three species, by an anterior flank marking branch longer than its posterior branch; differs from its closest congener E. sculptus by an indistinct color gradation between the flank and abdomen (vs. a sharp demarcation between the flank and abdomen), a V-shape arrangement of ampullae on the ventral snout surface with evenly distributed dermal denticles (vs. U-shape with sparse denticle coverage, dorsal fins densely covered with dermal denticles (vs. sparse or mostly bare dorsal fins), higher vertebral count 85-88 (vs. 78-85), and spiral valve turn 11 (vs. 8-9) counts; differs from the other two closest species, E. lailae and E. lucifer, by a longer posterior flank marking branch extending to or beyond the end of the second dorsal fin free rear tip (vs. shorter branch not reaching the rear tip), an upper caudal lobe with a dark terminal band or spot, which is absent in these other two species, and biogeography with the new species occurring in the southern African region (vs. the central and western Pacific Ocean) (Ref. 124468).
Body shape (shape guide): fusiform / normal; Cross section: oval.
Livscykel och parningsbeteende
Könsmognad | Reproduktion | Lek | Ägg | Fekunditet | Larver
Ebert, D.A., R.W. Leslie and S. Weigmann, 2021. Etmopterus brosei sp. nov.: a new lanternshark (Squaliformes: Etmopteridae) from the southeastern Atlantic and southwestern Indian oceans, with a revised key to the Etmopterus lucifer clade. Marine Biodiversity 51(53):1-17. (Ref. 124468)
Status på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))
Hot mot människor
Harmless
Mänskliga användningsområden
Fiskeri: saknar intresse
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Uppskattningar baserade på modeller
Index för fylogenetisk mångfald (Ref.
82804): PD
50 = 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).
Trofisk nivå (Ref.
69278): 4.2 ±0.6 se; based on size and trophs of closest relatives
Resiliens (Ref.
120179): Låg, lägsta populationsfördubblingstid 4,5-14 år (Preliminary K or Fecundity.).
Sårbarhet i fisket (Ref.
59153): Moderate vulnerability (40 of 100).
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![Image of Etmopterus brosei (Barrie\](/images/thumbnails/gif/tn_ETMOPTT0.gif "Image of Etmopterus brosei (Barrie\")
