Geophagus crocatus

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Geophagus crocatus Hauser & López-Fernández 2013

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Geophagus crocatus
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drawing shows typical fish in this Family.

分類 / Names 俗名 | 同種異名 | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopteri > Cichliformes (Cichlids, convict blennies) 鱸形目 (Cichlids, convict blennies) > Cichlidae (Cichlids) 慈鯛科魚類 (Cichlids) > Geophaginae
Etymology: Geophagus: Greek, gea = the earth + Greek, phagein = to eat (Ref. 45335);  crocatus: From the Latin adjective crocatus, meaning saffron yellow, in reference to the yellow operculum on live specimens.

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

; 淡水 底中水層性; pH range: 4.1 - 7.1.    25°C - 33°C (Ref. 95093)

分布 國家 | FAO區域 | 生態系 | 發現紀錄 | Point map | 簡介 | Faunafri

South America: Berbice River, above and below the rapids at Itabru Falls in Guyana.

大小 / 重量 / 年齡

Maturity: Lm ?  range ? - ? cm
Max length : 16.6 cm SL 雄魚/尚未辨別雌雄; (Ref. 95093)

簡短描述 型態特徵 | 形態測量圖

背棘 (總數): 17; 背的軟條 (總數): 11-12; 臀棘 3; 臀鰭軟條: 7 - 8; 脊椎骨: 32 - 33. Differs from Geophagus grammepareius, G. taeniopareius, G. argyrostictus, G. gottwaldi and G. harreri by its incomplete suborbital stripe (vs. complete). Can be further diagnosed from G. abalios, G. brokopondo, G. surinamensis, G megasema, G camopiensis, G. altifrons, G. parnaibae, G. sveni, and G. neambi by having an incomplete suborbital stripe formed by a preopercular black mark (vs. absent). The lateral bar pattern of Geophagus crocatus distinguishes this species from all other congeners. The bar pattern is formed by 6 vertical bars on the flank, with bars 2 and 3 uniquely fused dorsally at the base of the spiny dorsal fin between spines 9 and 10. Distinguished from all members of the G. surinamensis complex with incomplete suborbital markings by the presence of 6 lateral bars (vs. absent in G. proximus and G. brachybranchus, 4 bars in G. winemilleri, and 7 bars in G. dicrozoster (Ref. 95093).

生物學特性     字彙 (例如 epibenthic)

Inhabits black water river, running through thick gallery forest. Mostly found abundat in areas of sluggish water with sandy bottoms and relatively little forest cover (Ref. 95093).

Life cycle and mating behavior 成熟度 | 繁殖 | 產卵場 | | 孕卵數 | 仔魚


主要參考資料 Upload your references | 參考文獻 | 合作者 : Kullander, Sven O. | 合作者

Hauser, F.E. and H. López-Fernández, 2013. Geophagus crocatus, a new species of geophagine cichlid from the Berbice River, Guyana, South America (Teleostei: Cichlidae). Zootaxa 3731(2):279-286. (Ref. 95093)

IUCN 瀕危狀態 (Ref. 123251)

  未評估 

CITES (Ref. 123416)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

對人類具威脅

 





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生態毒物學
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孕卵數

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Estimates based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01820 (0.00793 - 0.04175), b=3.02 (2.84 - 3.20), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245).
營養階層 (Ref. 69278):  2.3   ±0.1 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.).
瀕危性 (Ref. 59153):  Low vulnerability (23 of 100) .