Actinopteri (ray-finned fishes) > Syngnathiformes
(Pipefishes and seahorses) > Syngnathidae
(Pipefishes and seahorses) > Syngnathinae
Etymology: Syngnathus: Greek, syn, symphysis = grown together + Greek, gnathos = jaw (Ref. 45335).
More on author: Linnaeus.
Environment: milieu / climate zone / depth range / distribution range
Marine; pelagic-neritic. Subtropical; 47°N - 47°S, 99°W - 27°W
Western Atlantic: Maine (USA), Bermuda and northern Gulf of Mexico to Argentina. Nova Scotia, Antilles, western Caribbean from Yucatan to Colombia (Ref. 26938). Taxonomic status of the eastern Atlantic population (from Mauritania to Gabon) needs further study and records from Cape of Good Hope, South Africa and the Indo-Pacific area require confirmation (Ref. 4509).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 18.1 cm SL male/unsexed; (Ref. 4509)
Morphology | Morphometrics
Associated with floating Sargassum (Ref. 4509). Ovoviviparous (Ref. 205). The male carries the eggs in a brood pouch which is found under the tail (Ref. 205).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Male carries the eggs in a brood pouch (Ref. 205).
Dawson, C.E., 1990. Syngnathidae. p. 658-664. 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. 4509)
IUCN Red List Status (Ref. 125652)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 123201
): 21.5 - 28.1, mean 27 °C (based on 1003 cells).
Phylogenetic diversity index (Ref. 82804
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00055 (0.00027 - 0.00112), b=3.20 (3.03 - 3.37), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.3 ±0.5 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.).
Fishing Vulnerability (Ref. 59153
): Low vulnerability (12 of 100).