Actinopteri (ray-finned fishes) > Gadiformes
(Cods) > Macrouridae
(Grenadiers or rattails)
Etymology: Kuronezumia: Japanese, kuronezumia = black mouse or rat. Personnal communication of Tomio I. Curator in the Calif. Academy of Sciences, Ichthyology.; paepkei: Named for Dr. Hans-Joachim Paepke..
More on authors: Shcherbachev, Sazonov & Iwamoto.
Environment: milieu / climate zone / depth range / distribution range
Marine; benthopelagic; depth range ? - 748 m (Ref. 9950). Deep-water
Western Indian Ocean: known only from off Kenya.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Morphology | Morphometrics
(total): 2. 12 mesial gill rakers on first arch; eight scales below origin of second dorsal fin; no bulblike swelling of light organ, anterior dermal window represented by a small scaleless area between midbases of pelvic fins; pores of sensory canals on head small but present; color gray-brown, fins dark. Pelvic fins with long filamentous ray extending to about 13th anal ray.
Minimum depth from Ref. 58018.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Shcherbachev, Y.N., Y.I. Sazonov and T. Iwamoto, 1992. Synopsis of the grenadier genus Kuronezumia (Pisces: Gadiformes: Macrouridae), with description of a new species. Proc. Calif. Acad. Sci. 48(3):97-108. (Ref. 9950)
IUCN Red List Status (Ref. 125652)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82804
= 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00214 (0.00107 - 0.00428), b=3.18 (3.01 - 3.35), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.6 ±0.5 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): Very Low, minimum population doubling time more than 14 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153
): Moderate vulnerability (36 of 100).