分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Siluriformes (Catfishes)
鯰形目 (Catfishes) >
Auchenipteridae (Driftwood catfishes)
頸鰭鯰科 (Driftwood catfishes) > Auchenipterinae
Etymology: Trachelyopterus: Greek, trachelos = neck + greek, pteron = wing, fin (Ref. 45335).
More on author: Linnaeus.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 居於水底的; pH range: 6.0 - 7.5; dH range: ? - 18. 熱帶; 20°C - 24°C (Ref. 2060)
South America: Widespread in northern South America.
南美洲: 廣泛分佈於南美洲北部, 包括祕魯與阿根廷。 (參考文獻 9086)
Length at first maturity / 大小 / 重量 / 年齡
Maturity: Lm 10.8 range ? - ? cm
Max length : 30.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 115169); 23.0 cm TL (female); 最大體重: 675.00 g (Ref. 115169); 最大體重: 675.00 g; 最大年齡: 3.00 年 (Ref. 35381)
背棘 (總數) : 1; 背的軟條 (總數) : 5 - 6; 臀棘: 0; 臀鰭軟條: 20 - 25. The body is stocky, the head a little depressed, the inferior jaw a little prognathous, the cephalic helmet covered with finely pigmented skin in adults, with a fontanelle shorter than the orbital diameter (Ref. 35381).
身體是矮胖的, 稍微扁平的頭部, 下方的頜稍微下巴突出, 頭甲覆蓋著有細微斑點的皮膚當成魚時了, 具有一個囪門短於眼窩的直徑.(參考文獻 35381)
Occurs in swamps. Well-adapted to hypoxic environments, being able to survive for hours, emerged. Adults feed on small fishes, arthropods, worms and sometimes on fruits (Ref. 35381). The spiny structure of the pectoral fins enables the male to hold the females during mating (internal fertilization). Sperm can be kept in the female's genital tract for several months, owing to a gelatinous emission from the seminal vesicle of the male. At maturity, the size of the adhesive eggs (20% of the female's weight) is 3 mm. Nine days after hatching, alevin size is 1.5 cm and they feed on microscopic worms or small insects. At around 11 days, their negative phototropism pushes them to hide themselves under branches or rocks. Its pink flesh is highly appreciated by the local population (Ref. 27188).
出現於沼澤。 對缺氧的環境適應很好, 存在能存活長達數小時之久,浮現。 胸鰭的刺狀結構使雄魚能夠在交配 (體內受精) 的時候捉住雌性。 精液能被保存於母魚的生殖道好幾個月,由於凝膠狀的發射從雄魚的精液小囊。 成熟時，聚集在一起卵 (20% 的母魚重量) 的大小是 3 mm 。 九天在孵化之後，剛孵化的小魚大小是 1.5 公分，而且他們吃微小的蠕蟲或小的昆蟲。 在大約 11 天，他們的背光性逼迫他們在分支或岩石下面隱藏他們自己。 成魚吃小魚，節肢動物，蠕蟲與有時在果實上.(參考文獻 35381) 它的粉紅肉是獲得高度地賞識的地方族群。 (參考文獻 27188)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
南美洲: 廣泛分佈於南美洲北部, 包括祕魯與阿根廷。 (參考文獻 9086)
Ferraris, C.J. Jr., 2003. Auchenipteridae (Driftwood catfishes). p. 470-482. 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. 37098)
人類使用
漁業: 低經濟; 水族館: 商業性
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01738 (0.01327 - 0.02275), b=3.04 (2.96 - 3.12), in cm total length, based on LWR estimates for this species (Ref.
93245).
營養階層 (Ref.
69278): 3.1 ±0.40 se; based on food items.
回復力 (Ref.
120179): 高度, 族群倍增時間少於 15個月 (tmax=3).
Fishing Vulnerability (Ref.
59153): Low vulnerability (20 of 100).
