Hippocampus planifrons, Flatface seahorse

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Hippocampus planifrons Peters, 1877

Flatface seahorse
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> Syngnathiformes (Pipefishes and seahorses) > Syngnathidae (Pipefishes and seahorses) > Syngnathinae
Etymology: Hippocampus: Greek, ippos = horse + Greek,kampe = curvature (Ref. 45335);  planifrons: Name from Latin bi meaning two, and ocellus meaning eye, in reference to the double eye-like spot on its back..

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

marien demersaal; standvastig; diepte 0 - 20 m (Ref. 42735). Subtropical; 18°S - 26°S (Ref. 75154)

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Eastern Indian Ocean: Western Australia. (Shark Bay and Exmouth Gulf).

Grootte / Gewicht / Leeftijd

Maturity: Lm ?  range ? - ? cm
Max length : 10.8 cm OT mannelijk / geslacht onbekend; (Ref. 42735)

Korte beschrijving Morfologie | Morfometrie

Dorsale stekels (totaal): 0; Dorsale zachte stralen (totaal): 22-23; Anale stekels 0; Anale zachte stralen: 4 - 5. Anal fin rays divided at base; tail rings 36-38; subdorsal spines 4/0,0,1,1 or 5/0,0,1,1,1; nose ridge slightly raised, without a spine; spine above eyes moderately large, angled back and laterally outward; lateral head spine moderately large and recurved; coronet slightly raised, apex with 5 blunt diverging spines; upper shoulder-ring spine of small to moderate size, situated beside gill openings; central shoulder-ring spine of moderate size and directed laterally outward; superior trunk and tail ridges with broad thorn-like blunt spines, enlarged on some rings, at regular intervals; superior tail ridge with tubercle-like spines of moderate size, angled backward; trunk ridges followed by connecting tail ridges with spines and tubercles becoming gradually smaller posteriorly; lateral line with distinct pores, on trunk rings just above lateral ridge, continuing onto tail to 18th-23rd tail ring, each pore between raised papillae (Ref. 42735).

Biologie     Verklarende woordenlijst (bv. epibenthic)

Adults inhabit shallow algae or weedy reef areas from the intertidal to about 20 m depth (Ref. 42735). Maximum length is based on a straight-line length measurement from upper surface (ignoring spines) of first trunk ring, to tip of tail (Ref. 42735). Ovoviviparous (Ref. 205). The male carries the eggs in a brood pouch which is found under the tail (Ref. 205).

Levenscyclus en paargedrag Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven

Male carries the eggs in a brood pouch (Ref. 205).

Hoofdreferentie Upload your references | Referenties | Coördinator | Medewerkers

Lourie, S.A., R.A. Pollom and S.J. Foster, 2016. A global revision of the seahorses Hippocampus Rafinesque 1810 (Actinopterygii: Syngnathiformes): taxonomy and biogeography with recommendations for further research. Zootaxa 4146(1):1-66. (Ref. 115213)

Status op de Rode Lijst van het IUCN (Ref. 130435)

  Niet bedreigd (LC) ; Date assessed: 05 October 2016

CITES


CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

  Harmless





Gebruik door de mens

FAO - Publication: search | FishSource |

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Estimates based on models

Preferred temperature (Ref. 123201): 18 - 23.8, mean 19.2 °C (based on 107 cells).
Fylogenetische diversiteitsindex (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00447 (0.00177 - 0.01127), b=3.00 (2.78 - 3.22), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trofisch niveau (Ref. 69278):  3.4   ±0.5 se; based on size and trophs of closest relatives
Weerstandsvermogen (Ref. 120179):  Hoog, minimale populatieverdubbelingstijd minder dan 15 maanden (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).