Eurypegasus draconis, Short dragonfish

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Eurypegasus draconis (Linnaeus, 1766)

Short dragonfish
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Eurypegasus draconis   AquaMaps   Data sources: GBIF OBIS
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> Dactylopteriformes (Flying gurnards) > Pegasidae (Seamoths)
Etymology: Eurypegasus: Greek, eurys = long + Greek, Pegasus, pege = springs of Ocean near which Medusa was said to have been killed; the winged horse, sprung from the blood of Medusa (Ref. 45335);  draconis: From the Latin word 'draco' meaning fabulous, lizard-like animal..
More on author: Linnaeus.

Environment: milieu / climate zone / depth range / distribution range 生態学

; 汽水性の 底生の; 深さの範囲 3 - 91 m (Ref. 26165), usually 35 - 90 m (Ref. 33989). Tropical; 32°N - 32°S

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Indo-Pacific: Red Sea and South Africa (Ref. 4264) to Marquesan and Society Islands, north to southern Japan, south to Australia and Lord Howe Island; throughout Micronesia.

サイズ / 重さ / 年齢

Maturity: Lm ?  range ? - ? cm
Max length : 10.0 cm TL オス/雌雄の選別がない; (Ref. 3132)

簡単な記述 形態学 | 形態計測学

背面の脊椎 (合計): 0; 背鰭 (合計): 5; 肛門の骨 0; 臀鰭: 5; 脊つい: 19 - 22. Color in life variable; body usually light to dark brown, with dorsal and lateral area darker than ventral surface. Pectoral fins hyaline, distal margin white and spotted. Pelvic fin spine and 1st ray forming an elongate, tentacular structure. 3 pairs of dorsolateral body plates; 4 pairs of ventrolateral body plates; tail rings 8 (rarely 9), mobile. A pair of deep pits posterior to orbit. Suborbital shelf concave, eye visible in ventral view. Ventral ridges of rostrum greatly expanded than dorsal ridges, each with laterally directed denticles. Anal papilla absent.

生物学     用語集 (例 epibenthic)

Inhabit lagoons often among algal or seagrass beds (Ref. 5503). Found on sand or silt bottoms, frequently in bays or estuaries (Ref. 3132). They are opportunistic feeders that collect mainly epifaunal and interstitial invertebrate prey, e.g., crustaceans and worms from the sediment-water interface (Ref. 31134). Shed their skin in one piece with a rapid jump periodically to rid themselves of accumulated ballast (Ref. 31134). Adults usually in pairs on muddy substrates (Ref. 48635). Has a monogamous mating system with close-pair bonding (Ref. 90102).

Life cycle and mating behavior 成熟 | 繁殖 | 放精 | | 生産力 | 幼生

Are broadcast spawners. In several aquaria, spawning is observed as pairs rose to about 50 cm above the substrate, their ventral surfaces closely opposed, releasing gametes at the apex of their upward rush; then they glided down to the bottom. As the pairs landed on the substrate, the male continued to follow his mate. Release of gametes follows. Spawning occurred only within pairs (obligate and genetic monogamy) (Ref. 52884).

主な参考文献 Upload your references | 参考文献 | コーディネーター | 協力者

Palsson, W.A. and T.W. Pietsch, 1989. Revision of the Acanthopterygian fish Family Pegasidae (Order Gasterosteiformes). Indo-Pac. Fish. (18):38 p. (Ref. 1418)

IUCNのレッドリストの状況は (Ref. 130435)

  軽度懸念 (LC) ; Date assessed: 11 July 2016

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

人間に対する脅威

  Harmless





Human uses

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Estimates based on models

Preferred temperature (Ref. 123201): 21.8 - 28.3, mean 26.7 °C (based on 757 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.7656   [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).
栄養段階 (Ref. 69278):  3.2   ±0.36 se; based on food items.
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).
Nutrients (Ref. 124155):  Calcium = 145 [80, 343] mg/100g; Iron = 1.25 [0.67, 2.19] mg/100g; Protein = 18.4 [17.1, 19.6] %; Omega3 = 0.218 [0.102, 0.474] g/100g; Selenium = 48.1 [20.1, 106.8] μg/100g; VitaminA = 61 [17, 206] μg/100g; Zinc = 2.95 [1.88, 4.31] mg/100g (wet weight);