Actinopteri (ray-finned fishes) > Scombriformes
(Mackerels) > Gempylidae
Etymology: Paradiplospinus: Greek, para = the side of + Greek, diploos = double + Latin, spina, pinna = thron (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Marine; bathydemersal; depth range 368 - 626 m (Ref. 6181), usually - m (Ref. ). Deep-water; 0°C - ; 16°S - 30°S, 3°E - 15°E (Ref. 6181)
Southeast Atlantic: known only from off Namibia and western South Africa.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 52.0 cm SL male/unsexed; (Ref. 27121)
Occurs in the upper continental slope (Ref. 6181). Juveniles probably pelagic (probably mesopelagic) (Ref. 6181). Specimens 35 to 40 cm SL had ripe gonads (Ref. 6181).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Nakamura, I. and N.V. Parin, 1993. FAO Species Catalogue. Vol. 15. Snake mackerels and cutlassfishes of the world (families Gempylidae and Trichiuridae). An annotated and illustrated catalogue of the snake mackerels, snoeks, escolars, gemfishes, sackfishes, domine, oilfish, cutlassfishes,. scabbardfishes, hairtails, and frostfishes known to date. FAO Fish. Synop. 125(15):136 p. (Ref. 6181)
IUCN Red List Status (Ref. 124695)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 6.2 - 7.9, mean 7 °C (based on 8 cells).
Phylogenetic diversity index (Ref. 82805
= 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00102 (0.00046 - 0.00225), b=3.06 (2.88 - 3.24), in cm total length, based on all LWR estimates for this body shape (Ref. 93245
Trophic level (Ref. 69278
): 4.5 ±0.7 se; based on diet studies.
Resilience (Ref. 120179
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Moderate vulnerability (41 of 100) .
Nutrients (Ref. 124155
): Calcium = 29 [14, 60] mg/100g ; Iron = 0.363 [0.201, 0.706] mg/100g ; Protein = 17.3 [14.9, 19.5] % ; Omega3 = 0.284 [0.151, 0.514] g/100g ; Selenium = 24.4 [10.5, 50.6] μg/100g ; VitaminA = 15.3 [3.9, 55.5] μg/100g ; Zinc = 0.36 [0.25, 0.53] mg/100g (wet weight);