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Erpetoichthys calabaricus  Smith, 1865

Reedfish
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Native range | All suitable habitat
This map was computer-generated and has not yet been reviewed.
Erpetoichthys calabaricus   AquaMaps   Data sources: GBIF OBIS
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Erpetoichthys calabaricus
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分類 / Names 共通名の | 類義語 | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

条鰭類 > Polypteriformes (Bichirs) > Polypteridae (Bichirs)
Etymology: Erpetoichthys: Greek, erpeton = creeping thing + Greek, ichthys = fish (Ref. 45335);  calabaricus: Named after the locality where the fish was taken: Old Calabar (Ref. 42916).

環境 / 気候 / 範囲 生態学

; 新鮮な水; 汽水性の 底生の; pH range: 6.0 - 8.0; dH range: 5 - 19; 深さの範囲 0 - ? m (Ref. 557).   Tropical; 22°C - 28°C (Ref. 1672)

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

Africa: coastal species, inhabiting river estuaries from Ouémé River in Benin to Sanaga River in Cameroon (Ref. 53784, 81628). Also reported from the Chiloango River (Ref. 1878, 2835, 3188, 42870, 43033, 81263), but this record needs confirmation and needs to be supported by additional material evidence (Ref. 53784, 81628).

Length at first maturity / サイズ / 重さ / 年齢

Maturity: Lm 31.4  range ? - ? cm
Max length : 37.0 cm SL オス/雌雄の選別がない; (Ref. 81628)

簡単な記述 形態学 | 形態計測学

背面の脊椎 (合計): 7 - 13; 背鰭 (合計): 0; 肛門の骨 0; 臀鰭: 9 - 14; 脊つい: 110 - 113. Diagnosis: The dorsal fin is composed of a series of well-separated spines each supporting one or several articulated rays and a membrane (Ref. 42791). Erpetoichthys calabaricus is distinguished from all Polypterus species by its very elongated, anguilliform body and the absence of ventral fin and subopercle (Ref. 2835, 42768, 81263).

生物学     用語集 (例 epibenthic)

Found in slow flowing rivers and standing waters (Ref. 557). Apparently restricted to reedy habitats (Ref. 42768). It moves snake-wise over the bottom, but it can also side-wind quite rapidly through the water (Ref. 42873). Feeds at night on worms, crustaceans and insects (Ref. 7020). Able to breathe air and thus can tolerate low oxygen concentrations. Larvae have external gills and resemble salamander larvae (Ref. 557). The maximum size of 90 cm TL (Ref. 3188) is probably erroneous; the largest size in collections is 37 cm (Ref. 78138).

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

Parallel swimming courtship; female deposits few eggs between anal fins of male, where they are fertilized and then scattered in vegetation where they immediately stick to substrate. This procedure is repeated many times. Eggs are 2.1-2.6 mm in diameter. Larvae hatch after 70 hours but remain attached to vegetation; 22 days after hatching the yolk sac is absorbed and larvae start feeding.

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

Britz, R., 2007. Polypteridae. p. 168-173. In M.L.J. Stiassny, G.G. Teugels and C.D. Hopkins (eds.) The fresh and brackish water fishes of Lower Guinea, West-Central Africa. Volume I. Collection Faune et Flore tropicales 42. Institut de Recherche pour le Développement, Paris, France, Muséum National d’Histoire Naturelle, Paris, France, and Musée Royal de l’Afrique Centrale, Tervuren, Belgium. 800 pp. (Ref. 81628)

IUCNのレッドリストの状況は (Ref. 115185)

CITES (Ref. 115941)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

人間に対する脅威

  Harmless




Human uses

水産業: 興味がない; 水族館・水槽: 商業
FAO(Publication : search) | FishSource |

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共通名の
類義語
代謝
捕食動物
生態毒性
繁殖
成熟
放精
生産力

卵の開発
Age/Size
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体長-重さ
Length-length
体長組成
形態計測学
形態学
幼生
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補充
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参考文献
水産養殖
水産養殖の紹介
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遺伝子の
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シガテラ(食中毒の名前)
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インターネットの情報源

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 1.0001   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00132 (0.00060 - 0.00289), b=2.99 (2.79 - 3.19), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
栄養段階 (Ref. 69278):  3.3   ±0.40 se; Based on food items.
回復力 (Ref. 69278):  低い, 4.5年~14年の倍増期間の最小個体群 (tmax=20; Fec = 264).
弱み (Ref. 59153):  Moderate vulnerability (35 of 100) .