Classification / Names
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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
বাস্তুসংস্থান
সামুদ্রিক সমুদ্রবক্ষে ভাসমান (ব্যথিপেলাজিক); গভীরতার পরিসীমা ? - 4565 m (Ref. 75592). Deep-water; 22°N - 20°N, 21°W - 31°W (Ref. 75592)
Eastern Central Atlantic. High Seas only.
আকৃতি / ওজন / Age
Maturity: Lm ? range ? - ? cm
Max length : 16.8 cm SL পুরুষ/ লিঙ্গ অনিধর্ারিত ; (Ref. 75592)
Short description
সনাক্তকারী নির্দেশক | বহিঃ অঙ্গ সংস্থান | মরফোমেট্রিক্স
কশেরুকা : 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
পরিপক্কতা | প্রজনন | ডিম ছাড়া | ডিমসমূহ | ডিম্বধারন ক্ষমতা | শুককীট
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)
Threat to humans
Harmless
Human uses
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ইন্টারনেট সুত্র
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 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).
ট্রফিক পর্যায়ে (Ref.
69278): 3.4 ±0.5 se; based on size and trophs of closest relatives
স্থিতিস্থাপক (Ref.
120179): মাধ্যম , সর্বনিম্ন প্রজন দ্বিগুনের সময় ১.৪-৪.৪ বৎসর (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (11 of 100).
