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Hippocampus abdominalis  Lesson, 1827

Big-belly seahorse
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Image of Hippocampus abdominalis (Big-belly seahorse)
Hippocampus abdominalis
Female picture by Lourie, S.A.

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Actinopterygii 輻鰭魚綱 (條鰭魚) > Syngnathiformes (Pipefishes and seahorses) > Syngnathidae (Pipefishes and seahorses) > Hippocampinae
Etymology: Hippocampus: Greek, ippos = horse + Greek,kampe = curvature (Ref. 45335).

環境 / 氣候 / 範圍 生態學

; 海洋; 半鹹淡水 居於水底的; 非遷移的; 深度上下限 0 - 104 m (Ref. 52034).    , preferred ?; 24°S - 50°S, 80°E - 120°W (Ref. 52034)

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Southwest Pacific: Australia and New Zealand. Vulnerable (Ref. 30915). Occurrence in Thailand and the Philippines (Ref. 43081) needs verification. International trade is monitored through a licensing system (CITES II, since 5.15.04) and a minimum size of 10 cm applies.

Length at first maturity / 大小 / 重量 / 年齡

Maturity: Lm 8.7  range ? - ? cm
Max length : 35.0 cm OT 雄魚/尚未辨別雌雄; (Ref. 6787); common length : 18.0 cm OT 雄魚/尚未辨別雌雄; (Ref. 9003)

簡短描述 型態特徵 | 形態測量圖

背棘 (總數): 0; 背的軟條 (總數): 25-31; 臀棘 0; 臀鰭軟條: 4.

生物學特性     字彙 (例如 epibenthic)

Found in large rock pools at low tide. They remain motionless amidst seaweed. Juveniles are pelagic (Ref. 30915) or attached to drifting seaweeds (Ref. 31838). Feed on minute crustaceans (e.g. copepods and amphipods). Nocturnal (Ref. 9003). Ovoviviparous (Ref. 205). The male carries the eggs in a brood pouch which is found under the tail (Ref. 205). Seen in groups at night. Also around jetties and other man-made objects; attached to sponges and colonial hydroids in deeper water (Ref. 30915). Length measurements refer to height (= TL - head length). This is the largest seahorse species in southeastern Australia, and has more dorsal fin rays and tail rings than any other seahorse (Ref. 31838). Sold locally and internationally for the aquarium trade (Ref. 31838). Dried and sold to the Oriental medicine trade as a tonic and aphrodisiac (Ref. 5316, 34026).

Life cycle and mating behavior 成熟度 | 繁殖 | 產卵場 | | 孕卵數 | 仔魚

Several subsequent broods are carried by the male in a brood pouch during the spawning season. Do not obviously pair, as other seahorses do (Ref. 30915). Fertilised eggs deposited by females in the pouch of males are incubated for about four weeks before hatching (Ref. 31838). Hatching occurs at night, coinciding with full moon periods during summer months (Ref. 31838). Young emerge from the pouch and immediately rise to the surface where they grasp floating debris with their tail (Ref. 31838).

主要參考資料 Upload your references | 參考文獻 | 合作者 | 合作者

Lourie, S.A., A.C.J. Vincent and H.J. Hall, 1999. Seahorses: an identification guide to the world's species and their conservation. Project Seahorse, London. 214 p. (Ref. 30915)

IUCN 瀕危狀態 (Ref. 115185)

CITES (Ref. 94142)

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