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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).
Eponymy: In Greek mythology, Nesaie was one of the Nereids, a sea nymph. The junior author later commented there is no particular allusion or meaning, simply: “…a nice name that might have some bearing on the creature.” (Ref. 128868), visit book page.
More on authors: Merrett & Iwamoto.
Environment: milieu / climate zone / depth range / distribution range
Ekologi
laut batipelagis; kisaran kedalaman 919 - 1000 m (Ref. 98298). Deep-water
Western Central Pacific: Vanuatu; also recorded from New Caledonia (Ref. 86942).
Size / Weight / umur
Maturity: Lm ? range ? - ? cm
Max length : 14.3 cm TL jantan/; (Ref. 98298)
deskripsi pendek
Kunci identifiaksi (pengenalan) | Morfologi | Morfometrik
This species is distinguished by the following characters: pelvic fin rays 13-14; pectoral fin rays 13-15; projecting snout 25-30% HL; no barbel; small orbit diameter 25% HL; interorbital width 55% HW; infraorbital width 16-17% HL; preopercular supporter is moderately long and straight, 6% HL; gill rakers 25-26; ventral striae reaching to about ? from pelvic fin bases to periproct; small otolith with rounded outline, no predorsal lobe developed, colliculi separated and reaching close to anterior and posterior rims of otolith; otolith length to height (OL:OH), 1.05; total colliculum length to pseudocolliculum length (TCL:PCL), 2.8 (Ref. 98298).
Life cycle and mating behavior
Kematangan | Reproduksi, perkembang biakan | Pemijahan | telur-telur | Fecundity | Larva
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 IUCN Red List (Ref. 130435: Version 2024-2)
ancaman kepada manusia
Harmless
penggunaan manusia
Alat, peralatan
laporan khas
muat turun XML
Sumber internet
Estimates based on models
Preferred temperature (Ref.
123201): 3.1 - 3.7, mean 3.4 °C (based on 6 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00214 (0.00109 - 0.00421), b=3.20 (3.03 - 3.37), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.3 ±0.4 se; based on size and trophs of closest relatives
Daya lenting (Ref.
120179): sedang, Waktu penggandaan populasi minimum 1.4 - 4.4 tahun (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
