Actinopterygii (ray-finned fishes) > Syngnathiformes
(Pipefishes and seahorses) > Syngnathidae
(Pipefishes and seahorses) > Syngnathinae
Etymology: Festucalex: Latin, festuca = stalk, straw coloured (Ref. 45335). More on author: Gilbert.
The species Festucalex amakusensis (Tomiyama ,1972) and Festucalex townsendi (Duncker, 1915) are considered as valid in Eschmeyer (CofF ver. Mar. 2011: Ref. 86697) following Kuiter (2009: Ref. 86771).
Environment: milieu / climate zone / depth range / distribution range
Marine; reef-associated; depth range 18 - 81 m (Ref. 58302). Tropical
Indo-Pacific: Mozambique to Hawaii.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 8.2 cm SL male/unsexed; (Ref. 5316)
Morphology | Morphometrics
Benthopelagic (Ref. 58302). Reported to have been dredged in 80.5 m (Ref. 4281). Ovoviviparous (Ref. 205). The male carries the eggs in a brood pouch which is found under the tail (Ref. 205). It is exported as an aquarium species from Hawaii.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Male carries the eggs in a brood pouch (Ref. 205).
Dawson, C.E., 1985. Indo-Pacific pipefishes (Red Sea to the Americas). The Gulf Coast Research Laboratory Ocean Springs, Mississippi, USA. (Ref. 5316)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 118484)
Threat to humans
Fisheries: of no interest; aquarium: commercial
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 20.7 - 28.3, mean 26.9 °C (based on 291 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.3 ±0.4 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 vulnerability (10 of 100) .