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Argentiniformes (Marine smelts) >
Microstomatidae (Pencil smelts)
Etymology: tenuicauda: Named for its slender caudal peduncle.
Eponymy: Fridtjof Nansen (1861–1930) was a Norwegian explorer, scientist, diplomat and later recipient of the Nobel Peace Prize. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
البيئة
بحري مياه عميقة; نطاق العمق 0 - 328 m (Ref. 5123). Deep-water
Southwest Atlantic: restricted to the area near the subtropical convergence, around 40°S. High Seas only.
الحجم / وزن / العمر
Maturity: Lm ?  range ? - ? cm
Max length : 8.4 cm SL ذكر/ مختلط الجنس; (Ref. 5123)
وصف مختصر
مفاتيح التعريف | الوصف الخارجي | قياسات المظهر الخارجي
الأشعة الظهرية الناعمة (المجموع) : 10 - 11; أشعه شرجية لينه: 8 - 10; فقرات: 46. Branchiostegal rays 4. Predorsal length less than 49% SL. Slender caudal peduncle, least depth is less than 5.5.% of SL. Pyloric caeca 8 (Ref. 5123).
Life cycle and mating behavior
النضج | التكاثر | وضع البيض | بيض | الخصوبة | Larvae
Kawaguchi, K. and J.L. Butler, 1984. Fishes of the genus Nansenia (Microsomatidae) with descriptions of seven new species. Los Angeles County Mus. Contr. Sci. 352:1-22. (Ref. 5123)
IUCN Red List Status (Ref. 130435: Version 2024-1)
استخدامات بشرية
أدوات
تقارير خاصة
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مصادر علي الأنترنت
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
مستوى غذائي (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).