Neoceratodus forsteri (Krefft, 1870)

Australian lungfish
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分類 / Names 共通名の | 類義語 | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

肉鰭類(総鰭亜鋼の各種の魚) (lobe-finned fishes) > Ceratodontiformes (Australian lungfishes) > Neoceratodontidae (Australian lungfish)
Etymology: Neoceratodus: Greek, neos = new + Greek, keras = horn + Greek, odous = teeth (Ref. 45335).

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

; 新鮮な水 底生の; potamodromous (Ref. 51243).   Tropical; 22°C - 28°C (Ref. 2060); 24°S - 26°S

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

Oceania: southern Queensland, Australia in Burnett and Mary River systems. Introduced successfully in southeastern Queensland. International trade restricted (CITES II, since 1.7.1975).

Length at first maturity / サイズ / 重さ / 年齢

Maturity: Lm 83.4, range 81 - ? cm
Max length : 170 cm TL オス/雌雄の選別がない; (Ref. 26188); common length : 100.0 cm TL オス/雌雄の選別がない; (Ref. 5259); 最大公表体重: 40.0 kg (Ref. 5259)

簡単な記述 形態学 | 形態計測学

背面の脊椎 (合計): 0; 背鰭 (合計): 0; 肛門の骨 0; 臀鰭: 0. Body stout and elongate. Dorsal fin originating on the middle of the back, confluent with caudal and anal fins. Body covered with large, bony, overlapping scales. The head is flattened, with conical profile. The eyes are small; the mouth is reaching about half the distance to eye. The pectoral fins are large and flipper-like in ventral position just behind the head; the pelvic fins are also flipper-like, situated far back on the body.

生物学     用語集 (例 epibenthic)

Inhabits mud, sand or gravel bottoms (Ref. 44894). Sluggish species that prefers still or slow-flowing waters, usually in deep pools. During period of drought, it can tolerate stagnant conditions by breathing air, surfacing 1-2 times per hour; however, it lacks the ability to survive dry spells by aestivation; it is a facultative air-breather that will die if forced to depend on air breathing (Ref. 36739, 44894). The sound of the lungfish exhaling air at the surface prior to inhaling a fresh breath has been likened to that made by a small bellows. Nocturnally active (Ref. 44894). Feeds on frogs, tadpoles, fishes, shrimp, earthworms, snails, aquatic plants and native fruits fallen from trees overhanging the creeks (Ref. 36739, 44894). It browses among the detritus, using its electroreceptors to pick up hidden mollusks, worms or crustaceans. Protected by law. Fossil records show that this species remained virtually unchanged for over 380 million years. The Steinhart Aquarium in San Francisco had a specimen of 1 m length, 20 kg weight, and more than 65 years of age. In 1933, an Australian lungfish was transported as a fully mature male (10 yrs. old at maturity) to the Shedd Aquarium, Chicago (C. Skonieczny, pers. comm. 11/08, e-mail: CSkonieczny@sheddaquarium.org).

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

The lungfish spawns from August to October; the eggs resemble small transparent grapes and are frequently found attached to floating stands of water-hyacinth. Spawning appears to occur in a series of three phases: in the first, a pair of fish move together, roaming about an area, presumably in search of a suitable spawning site; in the second presumably the male follows the female, nudging her flanks; finally, the fish plunge through the surrounding weed, the male following the female and fertilising the eggs as they are shed.

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

Allen, G.R., 1989. Freshwater fishes of Australia. T.F.H. Publications, Inc., Neptune City, New Jersey. (Ref. 5259)

IUCNのレッドリストの状況は (Ref. 119314)


CITES (Ref. 115941)


CMS (Ref. 116361)

Not Evaluated

人間に対する脅威

  Harmless





Human uses

水産業: 食糧水産
FAO(Publication : search) | FishSource |

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共通名の
類義語
代謝
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生態毒性
繁殖
成熟
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形態計測学
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参考文献
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シガテラ(食中毒の名前)
速度
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Otoliths

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Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 2.0039   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00427 (0.00161 - 0.01131), b=3.12 (2.89 - 3.35), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
栄養段階 (Ref. 69278):  3.4   ±0.54 se; Based on food items.
回復力 (Ref. 69278):  非常に低い, 14年以上の倍増期間の最小個体群 (K=0.11; tmax >30; tm approx. 15-20 yrs.).
弱み (Ref. 59153):  High to very high vulnerability (72 of 100) .
価格帯 (Ref. 80766):   Unknown.