Actinopteri (ray-finned fishes) > Beryciformes
(Sawbellies) > Rondeletiidae
Etymology: Rondeletia: Guillaume Rondeleti, French naturalist, 1507-1560, teacher in Montpellier, he drew the fishes he had observed. It also exists the genus Rondeletia in botanics (familiy Cinchonaceae, 1771) (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Marine; bathypelagic; depth range 100 - 3500 m (Ref. 74511). Deep-water; 67°N - 42°S, 180°W - 180°E
Worldwide in tropical to temperate seas. Atlantic Ocean: between 38°N and 40°S; reported from Iceland (Ref. 12462). Indian Ocean: between 20°N and 39°S. Pacific Ocean: between 45°N and 42°S. South China Sea and East China Sea (Ref.74511).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 11.0 cm SL male/unsexed; (Ref. 4501)
Diurnal depths from 750 m, migrating to 100 m at night. Feeds on amphipod and crustacean remains (Ref. 6716).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Paxton, J.R. and D.J. Blake, 1990. Rondeletiidae. p. 609. 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. 2. (Ref. 4501)
IUCN Red List Status (Ref. 125652)
Threat to humans
Fisheries: of no interest
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 2.5 - 9, mean 4.6 °C (based on 3315 cells).
Phylogenetic diversity index (Ref. 82805
= 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01122 (0.00514 - 0.02450), b=3.04 (2.87 - 3.21), in cm total length, based on all LWR estimates for this body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.4 ±0.52 se; based on food items.
Generation time: 2.7 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies.
Resilience (Ref. 120179
): Medium, minimum population doubling time 1.4 - 4.4 years (K=0.4).
Fishing Vulnerability (Ref. 59153
): Low to moderate vulnerability (29 of 100) .
Climate Vulnerability (Ref. 125649
): (0 of 100) .