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Diagnostic Description

provided by Fishbase
Olive brown above, lighter below (Ref. 3972). Body snake-like, cylindrical, compressed only along extreme tail tip; anterior nostril tubular, posterior along lower edge of lip; teeth granular to molariform, multiserial bands on jaws and vomer, but sharper on jaws and more pointed in young individuals; median fins not continuous posteriorly; extreme tip of tail stiff and finless; dorsal fin origin about a pectoral fin length behind tips of pectoral fins; lateral line inconspicuous (Ref. 4832).
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Recorder
Cristina V. Garilao
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Migration

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Anadromous. Fish that ascend rivers to spawn, as salmon and hilsa do. Sub-division of diadromous. Migrations should be cyclical and predictable and cover more than 100 km.
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Pascualita Sa-a
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Morphology

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Dorsal spines (total): 0; Analspines: 0; Vertebrae: 171 - 173
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Cristina V. Garilao
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Trophic Strategy

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Reported to spawn in rice-paddies during the rainy season (Ref. 12693). In India, this species burrows into and through the embankments of paddy fields and salt pans near estuaries. The paddy fields are damaged by the burrows allowing salt water to enter and the crops to wither. It prefers a substrate which consist of a good mixture of sand, silt, and clay. It shows a tidal locomotory rhythm. It comes to the surface of the mud at high tide to feed, when some degree of exposure to the overlying water may occur (Ref. 42330).
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Biology

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Found in lagoons and estuaries, entering freshwater and paddy fields (Ref. 30573). Common in tidal reaches and nearby upstream areas of coastal rivers (Ref. 12693). Lives in holes in the river bottom and bank and actively forages for small fishes at night (Ref. 12693). Reported to spawn in rice-paddies during the rainy season (Ref. 12693). Caught in bag nets and similar gear. Marketed fresh.
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Importance

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fisheries: minor commercial; bait: usually; price category: unknown; price reliability:
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分布

provided by The Fish Database of Taiwan
分布於印度-太平洋區海域:西從索馬利亞、印度、錫蘭,東到波里尼西亞,北從日本,南至澳洲新幾內亞。台灣四周海域皆有產,較罕見於東部海域,目前僅蘭陽溪河口一帶尚有點狀分布。
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臺灣魚類資料庫
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利用

provided by The Fish Database of Taiwan
數量多,土龍種類之一,可供浸酒、藥燉而食用,但價格不便宜。
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描述

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全長為頭長的10.4-11.7倍;全長為鰓孔位體高的32.4-43.2倍;全長為軀幹長的3.1-3.3倍。無尾鰭,尾端尖銳,裸露凸出;背、臀鰭於近尾端處無上揚;背鰭起點在胸鰭後端之後,其距離略長於胸鰭長度;上頜比下頜長,吻短稍尖,上唇緣具一個肉質突起,位於前鼻孔和後鼻孔之間;鋤骨有齒,且上、下頜齒均為顆粒狀或臼齒狀,數列排成齒帶;體上半側為褐黃色,下半側淡白,中位鰭略帶黑緣;平均脊椎骨組成:18-66-168,總脊椎骨數為167-171。本種是最常被民間公認為正宗的土龍種類之一,大型者肉質肥美,可供浸酒、藥燉而食用,但價格不便宜。其外型與食蟹荳齒蛇鰻極為類似,可藉由背鰭起點處、上唇緣肉質突起數及脊椎骨數之多寡來加以區別分辨。
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棲地

provided by The Fish Database of Taiwan
本種喜歡棲息於淡、海水交會的河口地帶,比食蟹荳齒蛇鰻更能完全適應淡水環境,經常進入河川下游處生活。平時埋藏於淺水域之爛泥底質中,嗜食貝類及甲殼類。
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Rice-paddy eel

provided by wikipedia EN

The rice-paddy eel (Pisodonophis boro; also known commonly as the Bengal's snake-eel, the estuary snake eel, or the snake eel[2]) is an eel in the family Ophichthidae (worm-snake eels).[3] It was described by Francis Buchanan-Hamilton in 1822, originally in the genus Ophisurus.[4] It is a tropical, marine eel which is known from the Indo-West Pacific, including Somalia, Tanzania, South Africa, southern India, Sri Lanka, Indonesia, Polynesia, Australia, Bangladesh, Cambodia, Kenya, Madagascar, the Philippines, Malaysia, Mozambique, Seychelles, Saudi Arabia, Taiwan, China, Thailand, Vietnam, and southern Yemen.[3][5] It is an anadromous species and spawns in freshwater, often in rice paddies during the rainy season, earning it its common name. It also spends time in lagoons, estuaries and coastal rivers, in which it lives in burrows in the river bottom and bank. Males can reach a maximum total length (TL) of 100 centimetres, but more commonly reach a TL of 70 cm.[3]

The rice-paddy eel is of minor commercial interest to fisheries; it is caught in bag nets and marketed fresh.[3] Its diet consists of bony fish and crabs such as Uca annulipes;[6] as a nocturnal creature it forages actively during the night.[3] Due to its widespread, albeit thinly populated distribution, and lack of major threats, the IUCN redlist currently lists the rice-paddy eel as Least Concern. It notes, however, that the species is subject to agricultural pollution.[5]

References

  1. ^ Synonyms of Pisodonophis boro at www.fishbase.org.
  2. ^ Common names for Pisodonophis boro at www.fishbase.org.
  3. ^ a b c d e Pisodonophis boro at www.fishbase.org.
  4. ^ Hamilton, F., 1822 [ref. 2031] An account of the fishes found in the river Ganges and its branches. Edinburgh & London. i-vii + 1-405, Pls. 1-39.
  5. ^ a b Pisodonophis boro at the IUCN redlist.
  6. ^ Food items reported for Pisodonophis boro at www.fishbase.org.
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Rice-paddy eel: Brief Summary

provided by wikipedia EN

The rice-paddy eel (Pisodonophis boro; also known commonly as the Bengal's snake-eel, the estuary snake eel, or the snake eel) is an eel in the family Ophichthidae (worm-snake eels). It was described by Francis Buchanan-Hamilton in 1822, originally in the genus Ophisurus. It is a tropical, marine eel which is known from the Indo-West Pacific, including Somalia, Tanzania, South Africa, southern India, Sri Lanka, Indonesia, Polynesia, Australia, Bangladesh, Cambodia, Kenya, Madagascar, the Philippines, Malaysia, Mozambique, Seychelles, Saudi Arabia, Taiwan, China, Thailand, Vietnam, and southern Yemen. It is an anadromous species and spawns in freshwater, often in rice paddies during the rainy season, earning it its common name. It also spends time in lagoons, estuaries and coastal rivers, in which it lives in burrows in the river bottom and bank. Males can reach a maximum total length (TL) of 100 centimetres, but more commonly reach a TL of 70 cm.

The rice-paddy eel is of minor commercial interest to fisheries; it is caught in bag nets and marketed fresh. Its diet consists of bony fish and crabs such as Uca annulipes; as a nocturnal creature it forages actively during the night. Due to its widespread, albeit thinly populated distribution, and lack of major threats, the IUCN redlist currently lists the rice-paddy eel as Least Concern. It notes, however, that the species is subject to agricultural pollution.

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Description

provided by World Register of Marine Species
Occurs in lowland freshwaters, estuaries and shores (Ref. 3508). Caught in bag nets and similar gear. Marketed fresh.

Reference

Froese, R. & D. Pauly (Editors). (2023). FishBase. World Wide Web electronic publication. version (02/2023).

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