Actinopteri (ray-finned fishes) > Aulopiformes
(Grinners) > Paralepididae
Etymology: Sudis: Latin, sudis = esox, fish of the Rhine, cited by Plinius 9.15; it also means "stake" (Ref. 45335). More on author: Rafinesque.
Environment: milieu / climate zone / depth range / distribution range
Marine; bathypelagic; depth range 200 - 2000 m (Ref. 4474), usually - m (Ref. ). Deep-water; 0°C - ; 50°N - 40°S
Circumglobal, broadly distributed, from 50°N to 40°S.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 100.0 cm TL male/unsexed; (Ref. 3397)
Morphology | Morphometrics
Mesopelagic to bathypelagic. Carnivorous. Probably spawns near the surface in temperate to tropical waters (Ref. 5759). Has been supposed to be one of the 'cable-biters'; reconstructions from big teeth found in submarine cables suggests that it attains at least 100 cm body-length (Ref. 4474).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Post, A., 1990. Sudidae. p. 385. In J.C. Quero, J.C. Hureau, C. Karrer, A. Post and L. Saldanha (eds.) Check-list of the fishes of the eastern tropical Atlantic (CLOFETA). JNICT, Lisbon; SEI, Paris; and UNESCO, Paris. Vol. 1. (Ref. 4474)
IUCN Red List Status (Ref. 124695)
Threat to humans
Fisheries: of no interest
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 4.6 - 13.8, mean 8.4 °C (based on 489 cells).
Phylogenetic diversity index (Ref. 82805
= 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00174 (0.00070 - 0.00429), b=3.10 (2.88 - 3.32), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245
Trophic level (Ref. 69278
): 4.3 ±0.7 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low to moderate vulnerability (34 of 100) .