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Centromochlus akwe Coelho, Chamon & Sarmento-Soares, 2021

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drawing shows typical species in Auchenipteridae.

分類 / Names 共通名の | 類義語 | Catalog of Fishes(部類, ) | ITIS | CoL | WoRMS | Cloffa

> Siluriformes (Catfishes) > Auchenipteridae (Driftwood catfishes) > Centromochlinae
Etymology: Centromochlus: Greek, kentron = sting + Greek, mochlos, -ou = lever, crowbar (Ref. 45335);  akwe: Named after the Akwê (Xerente self-denomination) indigenous people..

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

; 新鮮な水 底生の漂泳性. Tropical

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

South America: Brazil.

サイズ / 重さ / 年齢

Maturity: Lm ?  range ? - ? cm
Max length : 7.4 cm SL オス/雌雄の選別がない; (Ref. 123897)

簡単な記述 検索表 | 形態学 | 形態計測学

This species is distinguished from Centromochlinae by having a vermiculated color pattern on the dorsum (vs. dorsum uniform in all Centromochlinae, except Tatia brunnea, T. dunni, and T. meridionalis). It is distinguished from these three aforementioned species by having the eye ventrolaterally displaced on head in a way that almost the entire eye is visible in ventral view (vs. eye displaced dorsolaterally and not visible in ventral view). It shares derived characters with other Centromochlus species such as the ventrolateral position of eye socket, a sphenotic notched for the exit of infraorbital canal, and with posterior serrations along pectoral-fin spine numerou. It is distinguished from its congeners by having the pectoral-fin spine with dark bars, alternating with light bars (vs. pectoral-fin spine with light and uniform color); further differs except C. carolae by the ventral surface of head moderate to largely pigmented (vs. ventral surface of head unpigmented in C. heckelii, C. existimatus, C. orca, C. musaicus, C. schultzi or with few scattered dark chromatophores in C. macracanthus and C. melanoleucus); differs from C. carolae by the presence of vermiculated color pattern or scattered chromatophores on lateral surface of the body that extends to the caudal peduncle (vs. lateral surface of the body with distinct demarcation between dark and light areas continuous posteriorly onto the caudal peduncle whereas the dark pigmentation extends nearly to the ventral midline); differs from C. schultzi by lacking dark large and rounded blotches over a pale background on head and trunk (vs. present; and by the smaller length of the dorsal-fin spine 18.1-27.1% of SL (vs. more than 27% of SL in C. macracanthus, C. heckelii, C. existimatus), and pectoral-fin spine 24.2-32.2% of SL (vs. more than 33% of SL in C. macracanthus, C. heckelii, C. existimatus) (Ref. 123897).

生物学     用語集 (例 epibenthic)

This species was found hidden in crevices within laterititic bedrock substrate covered by alluvial sediment, typical of the median portion of the Araguaia River basin and were manually collected and sometimes it was necessary to break the rocks to remove specimens that were hidden. The laterite is a geomorphological formation that originates from the weathering of lateritic crusts that cover the geological units, and is common at the middle and lower rio Araguaia stretches. Several species of Siluriformes that occur syntopically with this species were also collected: Centromochlus schultzi, Tatia intermedia, Auchenipterichthys longimanus, Rhinodoras boehlkei, Platydoras armatulus, Rhamdia quelen, Leporacanthicus galaxias, Peckoltia vittata, P. sabaji, Parancistrus aurantiacus, Pseudacanthicus sp., and Spectracanthicus javae. Specimens were collected in the twilight and daytime, with most of these collected during the morning and at periods of capture, the collected specimens were in lethargic condition (Ref. 123897).

Life cycle and mating behavior Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 幼生

主な参考文献 Upload your references | 参考文献 | コーディネーター : Ferraris, Jr., Carl J. | 協力者

Coelho, F.L., C.C Chamon and L.M. Sarmento-Soares, 2021. A new species of driftwood catfish Centromochlus Kner, 1858 (Siluriformes, Auchenipteridae, Centromochlinae) from Tocantins-Araguaia River drainage. Zootaxa 4950(1):149-165. (Ref. 123897)

IUCNのレッドリストの状況は (Ref. 130435)


CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

人間に対する脅威

  Harmless





Human uses

FAO - Publication: search | FishSource |

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Trophic ecology
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Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = No PD50 data   [Uniqueness, from 0.5 = low to 2.0 = high].
栄養段階 (Ref. 69278):  3.3   ±0.4 se; based on size and trophs of closest relatives
回復力 (Ref. 120179):  高い, 15か月以下の倍増期間の最小個体群 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).