Alaska country information

Common names: [No common name]
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Type locality, Gulf of Alaska, UW 042325 (holotype of Paraliparis bullacephalus, 5.3 cm SL, male) (Ref. 82595).
National Checklist:
Country Information:
National Fisheries Authority: http://www.state.ak.us/local/akpages/FISH.GAME/adfghome.htm
Occurrences: Occurrences Point map
Main Ref: Busby, M.S. and R.L. Cartwright, 2009
National Database:

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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 Écologie

marin bathypélagique; profondeur 233 - 322 m (Ref. 82595). Temperate

Distribution Pays | Zones FAO | Écosystèmes | Occurrences | Point map | Introductions | Faunafri

Gulf of Alaska.

Taille / Poids / Âge

Maturity: L_m ? range ? - ? cm
Max length : 6.2 cm SL mâle / non sexé; (Ref. 82595); 9.4 cm SL (female)

Description synthétique Clés d'identification | Morphologie | Morphométrie

Rayons mous dorsaux (Total) : 60; Rayons mous anaux: 53 - 55; Vertèbres: 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).

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Référence principale Upload your references | Références | Coordinateur | Collaborateurs

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)

Statut dans la liste rouge de l'IUCN (Ref. 130435)

Non évalué

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

Harmless

Utilisations par l'homme

FAO(Publication : search) | FishSource |

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Estimates based on models

Preferred temperature (Ref. 115969): 4.1 - 6.4, mean 5.1 (based on 9 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 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).

Niveau trophique (Ref. 69278): 3.4 ±0.5 se; based on size and trophs of closest relatives

Résilience (Ref. 120179): Haut, temps minimum de doublement de population inférieur à 15 mois (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

Paraliparis bullacephalus Busby & Cartwright, 2009