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Teleostei (teleosts) > Ophidiiformes (Cusk eels) > Bythitidae (Livebearing brotulas)
Etymology: merretti: Named for Dr Nigel R. Merrett, Thorncombe, Chard, U.K. (previous the Natural History Museum)..

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

Marine; bathypelagic; depth range 4453 - 4540 m (Ref. 105129). Deep-water

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Eastern Central Atlantic: off NW Africa.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 8.5 cm SL male/unsexed; (Ref. 105129); 12.5 cm SL (female)

Short description Identification keys | Morphology | Morphometrics

Dorsal soft rays (total): 67 - 70; Anal soft rays: 49 - 52; Vertebrae: 64 - 65. This species is distinguished by the following set of characters: long rakers on first gill arch 14-16; D 67-70; precaudal vertebrae 29-30, total vertebra 64-65; height of head 21.0-23.0 % SL and origin of dorsal fin above vertebra no. 22 (Ref. 105129).

Only three specimens were caught in bottom fishing gear at abyssal depths. The stomach of the holotype contained unidentifiable remains of crustaceans. Viviparous with the presence of 6 mm long embryos (Ref. 105129).

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Nielsen, J.G., 2015. Revision of the aphyonid genus Aphyonus (Teleostei: Ophidiiformes) with a new genus and two new species. Zootaxa 4039(2):323-344. (Ref. 105129)

IUCN Red List Status (Ref. 130435)

Data deficient (DD) ; Date assessed: 16 August 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

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Internet sources

Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].

Trophic level (Ref. 69278): 3.4 ±0.5 se; based on size and trophs of closest relatives

Resilience (Ref. 120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

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Paraphyonus merretti Nielsen, 2015