Hymenocephalus nascens, Nascent membranehead

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Hymenocephalus nascens Gilbert & Hubbs, 1920

Nascent membranehead
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Hymenocephalus nascens   AquaMaps   Data sources: GBIF OBIS
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Image of Hymenocephalus nascens (Nascent membranehead)
Hymenocephalus nascens
Picture by Graham, K.

分类 / Names 俗名 | 同种异名 | Catalog of Fishes(, ) | ITIS | CoL | WoRMS | Cloffa

Teleostei > 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: Gilbert & Hubbs.

Environment: milieu / climate zone / depth range / distribution range 生态学

海洋 底中水层性; 深度上下限 366 - 1000 m (Ref. 35908). 深水域

分布 国家 | FAO区域 | 生态系 | 标本纪录 | Point map | 简介 | Faunafri

Western Central Pacific: South China Sea off Hong Kong, through Philippines and Indonesia, off northern Australia, to New Caledonia and New Zealand.
中西太平洋: 南中國海外海的香港,經過菲律賓與印尼,外海的澳洲北部, 到新加勒多尼亞。

大小 / 重量 / 年龄

Maturity: Lm ?  range ? - ? cm
Max length : 18.2 cm TL 雄鱼/尚未辨别雌雄; (Ref. 97189)

简单描述 型态特徵 | 形态测量图

背棘 (总数): 2. This species is distinguished by the following characters: pelvic rays usually 12-14 (elsewhere 11-13); total gill-rakers first arch (outer/inner) 17-22/23-28, second arch 22-28/22-26; no chin barbel; snout length 22-31% HL; orbit diameter 29-40% HL; suborbital width 10-14%HL, interorbital width 24-29%HL; most of the orbit, upper surface of snout, sides of head and trunk silvery or pale, ventral aspects of heed and trunk black; a prominent midlateral stripe of silvery (when fresh) or brownish (preserved) pigment running along trunk and tail (Ref. 97189). Additional distinguishing characteristics: pectoral fin rays 13-16; projecting snout, 20-26% HL; infraorbital width 11-16% HL; moderately long preopercular supporter, with obtuse angle at rear margin, 4-9% HL; ventral striae reaching to ½ distance from pelvic fin bases to periproct; otolith has moderately high predorsal lobe, with colliculi separated, closely placed across collum with a tendency to joining in large individuals, terminating at some distance from anterior and posterior rims of otolith; otolith length to height (OL:OH), 1.1-1.2; total colliculum length to pseudocolliculum length (TCL:PCL), 1.8-2.4 (Ref. 98298).
腹鳍鳍条通常 12 或 13. 总鳃耙第一鳃弓 (外部的/内部的)16-20/22-27, 第二个弓 23-27/22-26; 下巴触须不存在; 吻 26-31% HL; 眼窝 31-38%; 子球。 2.0-3.0, interorb。 1.0-1.4 进入眼窝之内; 一条突出的侧面中央的斑纹。

生物学特性     字汇 (例如 epibenthic)

A benthic species found on the continental slope (Ref. 75154). Maximum depth from Ref. 106682.

Life cycle and mating behavior 成熟度 | 繁殖 | 产卵场 | | 孕卵数 | 仔鱼

中西太平洋: 南中國海外海的香港,經過菲律賓與印尼,外海的澳洲北部, 到新加勒多尼亞。

主要参考文献 Upload your references | 参考文献 | 合作者 : Iwamoto, Tomio | 合作者

Iwamoto, T. and N.R. Merrett, 1997. Pisces Gadiformes: Taxonomy of grenadiers of the New Caledonian region, southwest Pacific. Mem. Mus. Natl. Hist. Nat. (176):473-570. (Ref. 35908)

世界自然保护联盟红皮书 (Ref. 130435)

  不评价 

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

对人类的威胁

  无害处的





人类利用

FAO - Publication: search | FishSource |

更多信息

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捕食者
生态毒物学
繁殖
成熟度
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产卵群集
孕卵数

卵的发育
年龄范围
成长
体长-体重
体长-体长
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形态测量图
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仔鱼
稚鱼动力学
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声音
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速度
泳型
鳃区
Otoliths
脑重体重比
眼睛色素

工具

特别资料

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网络资源

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | 核实 FishWatcher | CISTI | Catalog of Fishes: , | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: 基因组, 核苷酸 | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | 树状分类阶层 | Wikipedia: 转至, 搜寻 | World Records Freshwater Fishing | Zoobank | 动物学的记录

Estimates based on models

Preferred temperature (Ref. 123201): 6.4 - 11.4, mean 8.2 °C (based on 237 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00219 (0.00111 - 0.00431), b=3.20 (3.03 - 3.37), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
营养阶层 (Ref. 69278):  3.3   ±0.4 se; based on size and trophs of closest relatives
回复力 (Ref. 120179):  中等的, 族群倍增时间最少 1.4 - 4.4年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).