Rhabdolichops lundbergi

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Rhabdolichops lundbergi Correa, Crampton & Albert, 2006

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drawing shows typical species in Sternopygidae.

分類 / Names 俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa

Teleostei > Gymnotiformes (Knifefishes) 電鰻目 (Knifefishes) > Sternopygidae (Glass knifefishes) 胸肛魚科 (Glass knifefishes)
Etymology: Rhabdolichops: Greek, rhabdos = stick + Greek, dolichos = long (Ref. 45335);  lundbergi: Named for John G. Lundberg for his contributions to the study of gymnotiform and other Neotropical fishes..

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

; 淡水 底中水層性; 深度上下限 10 - 18 m (Ref. 55969).

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

South America: Brazil.

大小 / 重量 / 年齡

Maturity: Lm ?  range ? - ? cm
Max length : 24.1 cm TL 雄魚/尚未辨別雌雄; (Ref. 55969); 17.5 cm TL (female)

簡短描述 型態特徵 | 形態測量圖

Diagnosis: Distinguished from it congeners (except R nigrimans) by the presence of long pectoral fins (P1/HL = 124.0 ± 9.7 vs. 60-100), with chromatophores generally restricted to the distal portions of the fin rays, creating a dark tip. Differs from R nigrimans by smaller adult body size; shorter caudal appendage with absence of sexual length dimorphism; smaller teeth on premaxilla, mesopterygoid, and dentary; and less numerous teeth on the premaxilla (18-20 vs. 20-25), mesopterygoid (8 vs. 11-13), and dentary (1213 vs. 25-34; n = 2 adults for each species) (Ref. 55969).
鑑別: 與它區分同類 (除了 R nigrimans 以外) 藉由有長的胸鰭 (P1/HL=124.0 ± 9.7 vs.60-100), 通常與色素胞侷限於鰭條的遠端部份, 創造一個深色的末端。 有別於較小的成魚身體大小的 R nigrimans; 比較短的尾部附肢具有缺乏性的長度同種二形; 比較小的牙齒在前頜骨，中翼骨與齒骨; 而且比較不很多牙齒在前頜骨 (18-20 vs.20-25) ，中翼骨 (8 vs.11-13) 與齒骨 (1213 vs.25-34; 為每個種的 n=2個成魚).(參考文獻 55969)

生物學特性     字彙 (例如 epibenthic)

This species is common in the main channel of the whitewater rivers of the Tefé region where it was found both in trawl-net samples at depths of 10-18 m and also, very abundantly, on sandy and muddy beaches sampled with seine nets. It occurs with R. eastwardi, caviceps, and electrogrammus, but not with nigrimans or navalha. The preferred habitat of this species is turbid river water with electrical conductivity in the range of 80-150 µScm-1. Mature males and females were found during the rising water phase of the Amazon River and were encountered among many other immature specimens on beaches. There in no information about the breeding habits of this species. Feeds on aquatic invertebrates-mainly larvae of Trichoptera and Ephemeroptera larvae, also of Coleoptera and Chironomidae. Some specimens had also ingested large amounts of adult Conchostraca (Ref. 55969).

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


主要參考資料 Upload your references | 參考文獻 | 合作者 : Albert, James S. | 合作者

Correa, S.B., W.G.R. Crampton and J.S. Albert, 2006. Three new species of the neotropical electric fish Rhabdolichops (Gymnotiformes: Sternopygidae) from the central Amazon, with a new diagnosis of the genus. Copeia 2006(1):27-42. (Ref. 55969)

IUCN 瀕危狀態 (Ref. 130435)

  無危 (LC) ; Date assessed: 03 December 2020

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

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Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5010   [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   ±0.42 se; based on food items.
Fishing Vulnerability (Ref. 59153):  Low vulnerability (14 of 100).