Diagnostic Description
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Variable pale yellow to nearly black (Ref. 48635). Venter and side of trunk without dark bars; dorsal fin with 3-4 prominent brown spots on each ray (Ref. 4281).Description: Characterized by presence of whitish or pale grey blotches and saddles; rings 12 - 14 + 32 - 35; 10 caudal rays; discontinuous superior trunk and tail ridges; ventrally deflected lateral trunk ridge near anal ring; continuous inferior trunk and tail ridges; head and body with short filaments; length of snout 1.3-2.6 in head length; depth of snout 3.0-5.4 in snout length; head length 7.5-9.8 in SL (Ref. 90102).
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- Cristina V. Garilao
Life Cycle
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Male carries the eggs in a brood pouch (Ref. 205).
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Migration
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Amphidromous. Refers to fishes that regularly migrate between freshwater and the sea (in both directions), but not for the purpose of breeding, as in anadromous and catadromous species. Sub-division of diadromous. Migrations should be cyclical and predictable and cover more than 100 km.Characteristic elements in amphidromy are: reproduction in fresh water, passage to sea by newly hatched larvae, a period of feeding and growing at sea usually a few months long, return to fresh water of well-grown juveniles, a further period of feeding and growing in fresh water, followed by reproduction there (Ref. 82692).
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Morphology
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Dorsal spines (total): 0; Dorsal soft rays (total): 20 - 28; Analsoft rays: 2 - 3
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Trophic Strategy
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Found in inshore waters (Ref. 75154). Adults occur in estuaries, lower reaches of coastal rivers and streams (Ref. 4127) and mangroves (Ref. 48635).
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Biology
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Adults occur in estuaries, lower reaches of coastal rivers and streams (Ref. 4127) and mangroves (Ref. 48635). Ovoviviparous (Ref. 205). The male carries the eggs in a brood pouch which is found under the tail (Ref. 205). Males may be brooding at 6.5-7.5 SL.
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Importance
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fisheries: of no interest
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分布
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分布於印度-太平洋海域，西起紅海、東非，東至斐濟，北至日本，南至澳洲等附近海域。臺灣發現於南部及澎湖附近砂泥底海域或河口域。
利用
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小型魚類，偶為潛水或網具捕獲，除學術研究及水族觀賞外，不具食用價值。
描述
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體特別的延長和纖細，無鱗，由一系列的骨環所組成；軀幹部的上側稜與尾部上側稜不相連接，下側稜則與尾部相接，中側稜則於臀部體環附近轉向腹面，不與尾部相接。吻部背中稜完全，但低位。主鰓蓋具一完全而直的中縱稜。其餘頭部之稜脊俱在，但不特別高舉；體環無弱縱棘；無皮瓣。骨環
12-14 + 32-35；背鰭起點在軀幹部，鰭條數 20-28；胸鰭鰭條數
13-16；尾鰭鰭條數
10。吻之下半部通常淡色；頭部與軀幹之背面及兩側淡褐色，或具雜斑；軀幹的腹部通常為褐色，不具暗橫帶，在稜脊中部則參雜暗褐色或黑色的斑塊；背鰭每一個軟條上具3-4個小黑點。
棲地
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主要棲息於河口區、沼澤區、沿岸河川下游等水域，棲息深度在0-5公尺深。
Hippichthys cyanospilos
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Hippichthys cyanospilos, commonly known as the blue-spotted pipefish or bluespeckled pipefish, is a marine fish belonging to the family Syngnathidae, native from the Indo-Pacific area.
Description
The blue-spotted pipefish is a small-sized fish that can reach a maximum length of 16 cm.[3] Its head is in the continuity of the body. The snout is tapered and have a medium length. The body has a somewhat angular appearance due to the presence of four discontinuous longitudinal ridges distributed over the dorsal and ventral side. The caudal fin is small and narrow. The body coloration may range from yellow to light brown through almost black. The color can be plain, spotted or mottled with white, yellow or light blue.[4] The dorsal fin is usually whitish with 3-4 small brownish spots on each of its 20-28 rays.[2]
Distribution & habitat
The blue-spotted pipefish is widespread throughout the tropical, subtropical and temperate waters of the Indo-Pacific from the eastern coast of Africa, Red Sea included, to Fidji and Philippines and from south Japan to north coast of Australia).[4][5][6]
The blue-spotted pipefish likes the shallow waters of estuaries from small coastal rivers and mangrove area.[5][6]
Biology
The bluespeckled pipefish feeds on planktonic crustacean.[4] It is ovoviviparous and it is the male who broods the eggs in its ventral brood pouch. The latter includes villi rich in capillaries that surround each fertilized egg creating a sort of placenta supplying the embryos. When fully grown, pups will be expelled from the pocket and evolve in complete autonomy.
References
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^ Sparks, J.S. & Pollom, R. (2017). "Hippichthys cyanospilos". The IUCN Red List of Threatened Species. 2017: e.T183167A1731021. doi:10.2305/IUCN.UK.2017-2.RLTS.T183167A1731021.en.
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^ a b Froese, Rainer; Pauly, Daniel (eds.) (2018). "Hippichthys cyanospilos" in FishBase. February 2018 version.
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^ Dawson, C.E. (1985). Indo-Pacific pipefishes (Red Sea to the Americas). The Gulf Coast Research Laboratory Ocean Springs, Mississippi, USA. ISBN 978-0917235009.
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^ a b c Thompson, Vanessa J.; Dianne J, Bray. "Hippichthys cyanospilos". fishesofaustralia. Museums Victoria. Retrieved 2 June 2018.
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^ a b Dawson, C.E. (1986). "Syngnathidae". In J. Daget; J.-P. Gosse; D.F.E. Thys van den Audenaerde (eds.). Check-list of the freshwater fishes of Africa (CLOFFA) Vol.2. ISNB, Brussels; MRAC, Tervuren; and ORSTOM, Paris. pp. 281–287. ISBN 9782871770022.
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^ a b Kuiter, R.H. & T. Tonozuka (2001). Pictorial guide to Indonesian reef fishes. Part 1. Eels- Snappers, Muraenidae - Lutjanidae. Zoonetics, Australia. pp. 1–302. ISBN 978-9799818805.
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Hippichthys cyanospilos: Brief Summary
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Hippichthys cyanospilos, commonly known as the blue-spotted pipefish or bluespeckled pipefish, is a marine fish belonging to the family Syngnathidae, native from the Indo-Pacific area.
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Description
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Occurs in estuaries, lower reaches of coastal rivers and streams (Ref. 4127). Males may be brooding at 6.5-7.5 SL.
Froese, R. & D. Pauly (Editors). (2023). FishBase. World Wide Web electronic publication. version (02/2023).
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