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Synbranchus marmoratus Bloch, 1795

Marbled swamp eel
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Synbranchus marmoratus
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Brazil country information

Common names: Enguia, Enguia da água doce, Enguia-d'água-doce
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: subsistence fisheries | Ref: Silvano, R.A.M. and A. Begossi, 2001
Aquaculture: | Ref:
Regulations: | Ref:
Uses: live export: yes;
Comments: Recorded from the Caracu and Sao Pedro streams, both tributaries of the Paraná river (Ref. 26076) and Pircacicaba river (Ref. 50076). Also reported from the Uruguay River (Ref. 79585) and Machado River basin (Ref. 97589). Also Ref. 81048.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/br.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Pavanelli, C.S. and E.P. Caramaschi, 1997
National Database:

Common names from other countries

分類 / Names 共通名の | 類義語 | Catalog of Fishes(部類, ) | ITIS | CoL | WoRMS | Cloffa

> Synbranchiformes (Spiny eels) > Synbranchidae (Swamp-eels)
Etymology: Synbranchus: Greek, syn, symphysis = grown together + Greek, brangchia = gill (Ref. 45335).
  More on author: Bloch.

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

; 新鮮な水; 汽水性の 底生の; potamodromous (Ref. 51243).   Subtropical; 22°C - 34°C (Ref. 36880)

分布 国々 | 国連食糧農業機関の区域 | エコシステム | 事件 | Point map | 導入 | Faunafri

Central and South America: Mexico to northern Argentina.

サイズ / 重さ / 年齢

Maturity: Lm ?  range ? - ? cm
Max length : 150 cm TL オス/雌雄の選別がない; (Ref. 79717); common length : 50.0 cm TL オス/雌雄の選別がない; (Ref. 35237)

簡単な記述 検索表 | 形態学 | 形態計測学

Body cylindrical and long; eyes small; dorsal and anal fins vestigial (Ref. 26543).

生物学     用語集 (例 epibenthic)

Facultative air-breathing (Ref. 126274); Anguilliform, has no pectoral and ventral fins; its dorsal and anal fins are vestigial (Ref. 27188). Adults inhabit streams, ponds, canals, drains, rice fields, both clear and turbid water (Ref. 11225). Nocturnal (Ref. 11225). Carnivore (Ref. 26543). The male guards and builds nest or burrow (Ref. 205). A protogynous hermaphrodite (Ref. 55367). Its being a facultative air-breather (Ref. 1468) explains, at least in part, why it is often missing from faunal inventories. At the start of the dry season when there's a decline in water level, it digs a tubular burrow in a bank or on the bottom. This burrow, which is for the most part sub-horizontal , can have several diverticula, followed by a vertical section which leads to the exterior by only one opening. Although breathing is slowed down, the fish remains active and flees if it is disturbed (Ref. 27188).

Life cycle and mating behavior Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 幼生

A diandric species having both primary and secondary male developmental pathways. Length at sex change = 34.0 cm TL (Ref. 55367). Also Ref. 35344, 103751.

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

Kullander, S.O., 2003. Family Synbranchidae (Swamp-eels). p. 594-595. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil. (Ref. 79717)

IUCNのレッドリストの状況は (Ref. 130435)

  軽度懸念 (LC) ; Date assessed: 28 March 2018

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

人間に対する脅威

  Harmless




Human uses

水産業: 商業; 水族館・水槽: 公共の水族館
FAO(Publication : search) | FishSource |

より多くの情報

Trophic ecology
食品種目概要について
Diet compositions
Food consumptions
Food rations
捕食動物
Ecology
生態学
Home ranges
Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
体長組成
Mass conversions
Recruitments
Abundances
Life cycle
繁殖
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
幼生
幼生の動力
Anatomy
Gill areas

Otoliths
Physiology
Body compositions
Nutrients
Oxygen consumptions
水泳形態
Swimming speeds
Visual pigment(s)
魚の音
Diseases / Parasites
Toxicities (LC50s)
Genetics
遺伝子の
Electrophoreses
Heritabilities
Human related
Aquaculture systems
水産養殖の紹介
緊張
Ciguatera cases
Stamps, coins, misc.
Outreach
協力者
Taxonomy
共通名の
類義語
形態学
形態計測学
画像
References
参考文献

用具

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インターネットの情報源

Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.6250   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00095 (0.00057 - 0.00160), b=3.10 (2.95 - 3.25), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
栄養段階 (Ref. 69278):  2.8   ±0.51 se; based on food items.
回復力 (Ref. 120179):  非常に低い, 14年以上の倍増期間の最小個体群 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Very high vulnerability (90 of 100).
価格帯 (Ref. 80766):   Unknown.