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Perciformes/Cottoidei (Sculpins) >
Liparidae (Snailfishes)
Etymology: Paraliparis: Greek, para = the side of + Greek, liparis = fat (Ref. 45335); bullacephalus: Named for its large, round head covered with gelatinous tissue; from Latin words 'bulla' meaning bubble and 'cephalus' for head..
Environment: milieu / climate zone / depth range / distribution range
البيئة
بحري مياه عميقة; نطاق العمق 233 - 322 m (Ref. 82595). Temperate
Gulf of Alaska.
الحجم / وزن / العمر
Maturity: Lm ? range ? - ? cm
Max length : 6.2 cm SL ذكر/ مختلط الجنس; (Ref. 82595); 9.4 cm SL (female)
وصف مختصر
مفاتيح التعريف | الوصف الخارجي | قياسات المظهر الخارجي
الأشعة الظهرية الناعمة (المجموع) : 60; أشعه شرجية لينه: 53 - 55; فقرات: 63 - 64. The species is distinguished from its congeners by the following set of characters: D 60; A 53-55; pectoral-fin rays 20-21; caudal-fin rays 6; vertebrae 63-64; dorsal contour of head rounded to snout, covered with gelatinous tissue; short snout with rounded tip projecting past upper jaw; small mouth, horizontal, inferior, with cleft reaching to nearly vertical below center of eye; large eye with dorsal margin level with or slightly above top of gill
opening; large opercular flap, rounded, projecting slightly toward dorsal; upper lobe of pectoral fin with 15 rays, one in
notch, and 4 or 5 in lower lobe, both lobes extending beyond anal-fin origin; cephalic pores are equal to or smaller in diameter than nostril; suprabranchial pore elevated, anterior of gill opening a distance about equal to opercular flap width; 3 pyloric caeca (Ref. 82595).
The male (5.30 and 6.20 cm) specimens appear to be mature, while the female (9.40 cm) was mature with ovaries containing numerous mature and immature, spherical, pale-colored, opaque, yolked oocytes, ranging in diameter from 0.20-2.12 mm; from gross observation, there appear to be fewer than 100 eggs in each ovary. Specimens were collected with a 60 cm bongo net, epibenthic sled and bottom trawl (Ref. 82595).
Life cycle and mating behavior
Maturities | التكاثر | Spawnings | Egg(s) | Fecundities | Larvae
Busby, M.S. and R.L. Cartwright, 2009. Paraliparis adustus and Paraliparis bullacephalus: two new snailfish species (Teleostei: Liparidae) from Alaska. Ichthyol. Res. 56:245-252. (Ref. 82595)
IUCN Red List Status (Ref. 130435)
استخدامات بشرية
أدوات
تقارير خاصة
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مصادر علي الأنترنت
Estimates based on models
Preferred temperature (Ref.
123201): 4.1 - 6.4, mean 5.1 °C (based on 9 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00525 (0.00237 - 0.01161), b=3.15 (2.96 - 3.34), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
مستوى غذائي (Ref.
69278): 3.4 ±0.5 se; based on size and trophs of closest relatives
المرونه (Ref.
120179): عالي, الحد الزمني الأدني لتضاعف عدد أفراد المجتمع أقل من 15 شهر (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
