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اسامي عام | مترادف | Catalog of Fishes(جنس, گونه ها) | ITIS | CoL | WoRMS | Cloffa
مارماهيان دهان گرد (hagfishes) >
Myxiniformes (Hagfishes) >
Myxinidae (Hagfishes) > Eptatretinae
Etymology: Eptatretus: hepta (Gr.), seven; tretos (Gr.), perforated (i.e., with holes), referring to seven gill apertures on what would later be described as Homea banksii (=E. cirrhatus) [range within genus is 6-14 pairs of gill apertures] (See ETYFish); walkeri: In honor of Harold J. Walker, Jr., Collections Manager, Scripps Institution of Oceanography, for help in providing hagfish specimens and data, and for contributions to ichthyology (See ETYFish).
Eponymy: Harold J Walker Jr is a Senior Museum Scientist and Collections Manager at Scripps Institution of Oceanography, University of California, San Diego. [...] (Ref. 128868), visit book page.
محیط زیست: محیط زیست / منطقه آب و هوایی / تغييرات عمق / محدوده توزیع
بوم شناسي
دريايي نزديك كف زي; غير مهاجر; تغييرات عمق 75 - 120 m (Ref. 51420). Deep-water
Northwest Pacific: Japan and Korea.
اندازه / وزن / سن
بلوغ: Lm ?  range ? - ? cm
Max length : 51.8 cm TL جنس نر / بدون خواص جنسي; (Ref. 51420)
توصيف مختصر
كليدهاي شناسايي | ريخت شناسي | ريخت ستجي بوسيله انداره گيري
Six pairs of gill pouches (GP) and apertures (GA); GA closely spaced in a linear or slightly irregular pattern; each GA with pale margin. Fused cusps 3/2, total cusps 38-44. Prebranchial slime pores 16-20, total pores 69-79. Ventral finfold poorly developed to vestigial. Eyespots faint or absent (Ref. 51420).
Body shape (shape guide): eel-like.
چرخه زندگی و رفتار جفتگیری
بلوغ | تولید مثل | تخم ریزی | تخم ها | باروری | توزاد ( لارو)
McMillan, C.B. and R.L. Wisner, 2004. Review of the hagfishes (Myxinidae, Myxiniformes) of the northwestern Pacific Ocean, with descriptions of three new species, Eptatretus fernholmi, Paramyxine moki, and P. walkeri. Zool. Stud. 43(1):51-73. (Ref. 51420)
وضعيت در فهرست قرمز IUCN (Ref. 130435: Version 2025-2 (Global))
خطر برای انسان ها
Harmless
استفاده انسانی
ماهي گيري – شيلات: علاقه بالقوه
ابزارها
گزارش های ويژه
بارگيری XML
منابع اينترنتي
تخمینها بر اساس مدلها
شاخص تنوع فیلوژنتیکی (مرجع 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=0.00204 (0.00095 - 0.00440), b=2.93 (2.74 - 3.12), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
سطح تروفیک (مرجع 69278) |
4.2 ±0.7 se; based on size and trophs of closest relatives |
جهندگی (مرجع 120179) |
متوسط, كمينه زمان لازم براي دو برابر شدن جمعيت 4/1 – 4/4 سال (Preliminary K or Fecundity.). |
آسیبپذیری ماهیگیری (Ref. 59153) |
Moderate to high vulnerability (46 of 100). 🛈 |