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Gadiformes (Cods) >
Macrouridae (Grenadiers or rattails)
Etymology: Hymenocephalus: Named for its transparent membrane-like head covering (‘‘hymen head’’) and fragile nature of head bones (Ref. 100825).
More on authors: Jordan & Gilbert.
Meio ambiente: milieu / Zona climática / intervalo de profundidade / faixa de distribuição
Ecologia
marinhas bentopelágico; intervalo de profundidade 220 - 600 m (Ref. 98298). Temperate
Northwest Pacific: Sagami Bay, Japan.
Tamanho / Peso / Idade
Maturidade: Lm ?  range ? - ? cm
Max length : 10.0 cm TL macho/indeterminado; (Ref. 559)
This species is distinguished by the following characters: pelvic fin rays 10-11; pectoral fin rays 16-18; projecting snout with thin, pointed tip, 20-25% HL; short barbel, 4-5% HL, and not reaching vertical through anterior margin of orbit; orbit diameter moderate, 25-30% HL; interorbital width 70-.80% HW; infraorbital width 16-20% HL; very long preopercular supporter, straight, 10-11% HL; gill rakers 18-22; ventral striae reaching to about 1/3 distance from pelvic fin bases to periproct; otolith with moderately high predorsal lobe and with colliculi separated, closely placed across narrow collum, terminating far from anterior and posterior rims of otolith; otholith length to height (OL:OH), 1.05; total colliculum length to pseudocolliculum length (TCL:PCL), 2.1 (Ref. 98298).
Cross section: angular.
Ciclo de vida ou comportamento de acasalamento
Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas
Schwarzhans, W., 2014. Head and otolith morphology of the genera Hymenocephalus, Hymenogadus and Spicomacrurus (Macrouridae), with the description of three new species. Zootaxa 3888(1):1-73. (Ref. 98298)
Status na Lista Vermelha da UICN (Ref. 130435: Version 2025-2 (Global))
Ameaça para os humanos
Harmless
Uso pelos humanos
Ferramentas
Relatórios especiais
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Fontes da internet
Estimativas baseadas em modelos
Índice de diversidade filogenética (Ref. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00219 (0.00112 - 0.00429), b=3.20 (3.03 - 3.37), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Nível Trófico (Ref. 69278) |
3.2 ±0.4 se; based on size and trophs of closest relatives |
Resiliência (Ref. 120179) |
Elevada, tempo mínimo de duplicação da população menor que 15 meses (Preliminary K or Fecundity.). |
Vulnerabilidade da pesca (Ref. 59153) |
Low vulnerability (25 of 100). 🛈 |