Environment: milieu / climate zone / depth range / distribution range
Marine; pelagic-oceanic; oceanodromous (Ref. 51243); depth range 0 - 15 m (Ref. 58018). Tropical; 32°N - 7°S, 114°W - 77°W (Ref. 114953)
Eastern Pacific: Gulf of California, Ecuador, and the Galapagos Islands.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 220 cm WD male/unsexed; (Ref. 28023); common length : 100.0 cm WD male/unsexed; (Ref. 9256)
Pelagic species forming schools in coastal and oceanic waters, but also found near the bottom. Found singly, in small groups, or in schools (Ref. 12951). Feeds mainly on planktonic crustaceans, but also takes small schooling fishes (Ref. 12951). Ovoviviparous (Ref. 50449). Gestation period unknown (Ref. 114953).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Exhibit ovoviparity (aplacental viviparity), with embryos feeding initially on yolk, then receiving additional nourishment from the mother by indirect absorption of uterine fluid enriched with mucus, fat or protein through specialised structures (Ref. 50449).
McEachran, J.D. and G. Notarbartolo di Sciara, 1995. Mobulidae. Mantas, diablos. p. 759-764. In W. Fischer, F. Krupp, W. Schneider, C. Sommer, K.E. Carpenter and V. Niem (eds.) Guia FAO para Identification de Especies para los Fines de la Pesca. Pacifico Centro-Oriental. 3 Vols. FAO, Rome. (Ref. 9256)
IUCN Red List Status (Ref. 123251)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 22.2 - 28.5, mean 23.5 °C (based on 368 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5005 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.8 ±0.60 se; based on food items.
Resilience (Ref. 120179
): Low, minimum population doubling time 4.5 - 14 years (Fec assumed to be <100).
Vulnerability (Ref. 59153
): Very high vulnerability (90 of 100) .