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Teleostei (teleosts) > Syngnathiformes (Pipefishes and seahorses) > Syngnathidae (Pipefishes and seahorses) > Syngnathinae
Etymology: Acentronura: Greek, a = without + Greek, kentron = sting + Greek, oura = tail (Ref. 45335).
More on author: Günther.

Environment: milieu / climate zone / depth range / distribution range Ecology

Marine; reef-associated; depth range 1 - 20 m (Ref. 48635). Tropical

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Indo-West Pacific: northern Red Sea and Mozambique to Torres Straits and Queensland, Australia. Also reported from Persian Gulf (Ref. 68964).

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 6.3 cm TL male/unsexed; (Ref. 4281)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 0; Dorsal soft rays (total): 16 - 17; Anal spines: 0; Anal soft rays: 4. Brown in color, dermal flaps blackish. Caudal absent in sub adults and adults. Females are slender and pipefish-like, but larger males are more seahorse-like (Ref. 48635).

Typically found on small and sparse seagrass or algae that grow adjacent to reefs at shallow to moderate depths. Usually found in pairs (Ref. 48635). 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).

Main reference Upload your references | References | Coordinator | Collaborators

Dawson, C.E., 1986. Syngnathidae. p. 445-458. In M.M. Smith and P.C. Heemstra (eds.) Smiths' sea fishes. Springer-Verlag, Berlin. (Ref. 4281)

IUCN Red List Status (Ref. 130435: Version 2024-2)

Least Concern (LC) ; Date assessed: 26 August 2015

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

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More information

Trophic ecology
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Ecology
Ecology

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Length-weight rel.
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Life cycle
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Maturity/Gills rel.
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Eggs
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Anatomy
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Estimates based on models

Preferred temperature (Ref. 123201): 24.9 - 29.3, mean 28.5 °C (based on 3288 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.6250 [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): 3.2 ±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 (10 of 100).

Acentronura tentaculata Günther, 1870