分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Cichliformes (Cichlids, convict blennies)
鱸形目 (Cichlids, convict blennies) >
Cichlidae (Cichlids)
慈鯛科魚類 (Cichlids) > Geophaginae
Etymology: Gymnogeophagus: Greek, gymnos = naked + Greek, gea = the earth + Greek, phaegein, to eat (Ref. 45335).
More on authors: Reis, Malabarba & Pavanelli.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 底中水層性. 熱帶
South America: Paraná River basin, in tributaries of the Paraná River between the Monday River and Guaia, Paraguay and Brazil.
南美洲: 巴拉納河流域, 在星期一之間在巴拉納河的支流中河與 Guaia ,巴拉圭與巴西。
大小 / 重量 / 年齡
Maturity: Lm ?  range ? - ? cm
Max length : 9.8 cm SL 雄魚/尚未辨別雌雄; (Ref. 36377)
簡短描述
型態特徵 | 形態測量圖
Can be easily differentiated from most Gymnogeophagus species by the possession of 23 to 25 scales in a longitudinal series (ranging from 26 to 29 in G. gymnogenys,
G. labiatus, G. balzanii, G. australis and G. lacustris. It differs from G. meridionalis by the absence of the small roundish dots on anal, dorsal and caudal fins. It is distinguished from G. rhabdotus by the caudal fin color pattern which lacks the small stripes or elongate dots of G. rhabdotus. It also presents an inconspicuous, darker pigmentation on the longitudinal series of scales between upper and lower lateral lines, especially on smaller specimens; a slightly reticulated aspect on larger specimens; and a conspicuous, narrow dark band on the margin of dorsal-fin membrane of larger specimens, characters not present in G. rhabdatus and G. meridianalis. Bright blue longitudinal stripes laterally on the flanks, commonly present in G. rhabdatus and G. meridianalis, are hardly visible in alcohol preserved specimens of G. setequedas (Ref. 26702).
能容易地從大多數 Gymnogeophagus 種被區別被擁有 23 到 25個鱗片形成一縱列 (範圍從 26 到 29 在 G. gymnogenys 中,
G. labiatus , G. balzanii , G. 南極光 與 G. lacustris. 它有別於 G. meridionalis 藉由缺少小的圓點肛門的之上, 背鰭與尾鰭鰭。 它是與缺乏 G. rhabdotus 的小斑紋或細長點的尾鰭彩色斑紋的 G. rhabdotus 區分。 它在上、下側線之間的縱向成列的鱗片上也呈現一個不明顯又比較深色的顏色, 尤其在較小的標本上; 在較大的標本上的一個些微網狀的面; 而且在較大的標本的背鰭薄膜的邊緣上的一個顯著又狹窄的深色條紋, 特徵不出現在 G. rhabdatus 與 G. meridianalis. 淡藍色縱向的斑紋側面地在側面上, 通常出現在 G. rhabdatus 與 G. meridianalis, 是很難看見當保存在酒精中時 G. setequedas 的保存的標本.(參考文獻 26702)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Both parents take care of the fry.南美洲: 巴拉納河流域, 在星期一之間在巴拉納河的支流中河與 Guaia ,巴拉圭與巴西。
Kullander, S.O., 2003. Cichlidae (Cichlids). p. 605-654. 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. 36377)
IUCN 瀕危狀態 (Ref. 130435)
近危 (NT) (B1b(iii)+2b(iii)); Date assessed: 19 November 2020
人類使用
水族館: 商業性
更多資訊
年龄/大小成長長度-重量長度-長度長度-頻率形態測量圖型態特徵仔魚稚魚動力學入添量豐度BRUVS
參考文獻養殖養殖資訊品種遺傳學Electrophoreses遺傳率疾病加工NutrientsMass conversion
合作者照片Stamps, Coins Misc.聲音神經毒速度泳型鰓區Otoliths腦重體重比眼睛色素
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5005 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.3 ±0.5 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 高度, 族群倍增時間少於 15個月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).