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Teleostei (teleosts) > Beryciformes (Sawbellies) > Stephanoberycidae (Pricklefishes)
Etymology: Abyssoberyx: Named for the great depth from which this fish was trawled; levisquamosus: Named for the smoothness of its scales.

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

Marine; bathypelagic; depth range ? - 4565 m (Ref. 75592). Deep-water; 22°N - 20°N, 21°W - 31°W (Ref. 75592)

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Eastern Central Atlantic. High Seas only.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 16.8 cm SL male/unsexed; (Ref. 75592)

Short description Identification keys | Morphology | Morphometrics

Vertebrae: 32 - 34. This species have the following characters: cycloid scales; dorsal fin spines 1-2; gill rakers 5-7 + 14-15 (Ref. 75592).

This species is caught by bottom trawls (epibenthic sledge and semi-balloon otter trawl). The type series were collected at a single station where the terrain at these abyssal depths (4490-4640 m) is characterized by a complex topography of undulations, some hundreds of meters in height and where substratum is firm with very low megafaunal biomass. Lack of a rich benthic invertebrate fauna contrasts with the abundance and diversity of the fish fauna sampled. Also, this species occurred among 22 other species of Synaphobranchidae (1 species), Alepocephalidae (2), Ipnopidae (4), Bathysauridae (1), Ophidiidae (8), Aphyonidae (3) and Macrouridae (3). In overall abundance, it ranked fourth, equal to the ophidioid, Porogadus sp. (10 specimens), but less abundant than the ipnopids, Bathypterois longipes Günther, 1878 (24) and Bathymicrops regis Hjort & Koefoed, 1912 (28) and the ophidioid, Bathyonus laticeps (Günther, 1878) (51). Specimens (3) were examined internally, all females (15.2, 15.5, 16.8 cm SL), with ovaries in varying stages of yolk formation. Some 3-4 generations of oocytes were present in the ovaries. The ovaries of the 15.5 cm SL specimen were the most mature, with the most advanced generation (estimated at some thousands of ova) being c. 1 mm in diameter and containing a large oil globule. Also, intestinal contents of this specimen were chitinous remains, while that of the holotype bore a heavy infestation of cestode worms only (Ref. 75592).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator : Moore, Jon A. | Collaborators

Merrett, N.R. and J.A. Moore, 2005. A new genus and species of deep demersal fish (Teleostei: Stephanobercidae) from the tropical eastern North Atlantic. J. Fish Biol. 67(6):1699-1710. (Ref. 75592)

IUCN Red List Status (Ref. 130435: Version 2024-1)

Data deficient (DD) ; Date assessed: 15 July 2014

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: bycatch

FAO - Publication: search | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 1.0625 [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): 3.4 ±0.5 se; based on size and trophs of closest relatives

Resilience (Ref. 120179): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (11 of 100).

Abyssoberyx levisquamosus Merrett & Moore, 2005