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Siluriformes (Catfishes) >
Plotosidae (Eeltail catfishes)
Etymology: Tandanus: A local name, tandan, in Australia; tropicanus: Named in reference to the region of northeastern Australia that represents the species’ range..
Environment: milieu / climate zone / depth range / distribution range
Sinh thái học
; Nước ngọt gần đáy. Tropical
Oceania: Australia from coastal rivers within the wet tropics region of northeast Queensland, including the Daintree, Mulgrave-Russell, Johnstone, Tully, and Five Mile drainage basins.
Bộ gần gũi / Khối lượng (Trọng lượng) / Age
Maturity: Lm ? range ? - ? cm
Max length : 39.5 cm SL con đực/không giới tính; (Ref. 96080)
Short description
Hình thái học | Sinh trắc học
Các vây lưng mềm (tổng cộng): 5-6; Tia mềm vây hậu môn: 150 - 165. Tandanus tropicanus is distinguished from its congener T. tandanus from different drainages. In the Murray-Darling drainage, it differs from T. tandanus by having the following characters: 150-165, mode 156 rays in the continuous caudodorsal and anal fins (vs. 136-149, mode 143); 31-35, mode 31, gill rakers on the first arch (vs. 24-30, mode 28); interorbital width 32.9-38.4% of HL mean 36.2% (vs. 40.3-47.7%, mean 43.5%); pectoral spine 11.1-14.0% of SL, mean 12.4% (vs. 8.9-11.2%, mean 10.1%). For individuals >20.5 cm SL, T. tropicanus can be diagnosed from T. tandanus of the Murray-Darling drainage by having 12-19 (mode 14) posterior serrae on the pectoral-fin spine (vs. 7-11, mode 9). Also, individuals >7.0 cm HL, T. tropicanus differs from T. tandanus of the Murray-Darling drainage by having the following characters: length of the inner mandibular barbel 32.3-41.0% of HL, mean 36.1% (vs. 40.9-54.7%, mean 46.7%); distance between bases of outer mandibular barbels 27.4-33.8% of HL, mean 29.6% (vs. 21.2-25.9%, mean 24.4%); distance between bases of inner mandibular barbels 13.5-15.9% of HL, mean 14.8% (vs. 10.4-13.2%, mean 12.0%); distance between bases of maxillary barbels 47.0-53.5% of HL, mean 50.1% (vs. 39.5-46.6%, mean 44.2% ); maximum cleithral width 75.6-81.4% of HL, mean 78.2% (vs. 68.6-75.2%, mean 71.9%); and eye diameter 14.7-17.2% of HL, mean 15.6% (vs. 12.3-14.6%, mean 13.6%).
In the eastern coastal drainages of Australia (Burnett, Tweed, Brisbane, Fitzroy, Clarence, Mary, and Richmond), Tandanus tropicanus differs from T. tandanus by having the following features: 150-165 rays (mode 156) in the continuous caudodorsal and anal fins (vs. 132-147, mode 145); gill rakers on the first arch 31-35, mode 31 (vs. 27-30, mode 28); interorbital width 32.9-38.4% of HL, mean 36.2% (vs. 40.2-47.3%, mean 43.2%); and to a lesser degree, a longer pectoral spine (11.1-14.0% of SL, mean 12.4% vs. 10.0-11.1%, mean 10.5%, respectively). For individuals >20.5 cm SL, T. tropicanus differs from T. tandanus by having more posterior serrae on the pectoral-fin spine (range 12-19, mode 14 vs. 7-11, mode 10).
Tandanus tropicanus can be differentiated from Bellinger catfish by having a larger eye diameter (14.7-18.5% of HL, mean 16.3% vs. 13.2-14.4%, mean 13.8%, respectively), a longer pectoral spine (11.1-14.0% of SL, mean 12.4% vs. 9.8-10.7%, mean 10.4%, respectively) and, to a lesser degree, fewer gill rakers on the first arch (range 31-35, mode 31 vs. 35-39, respectively). It is distinct from T. bostocki by a shorter post-orbital distance (37.4-42.7% of HL, mean 39.5% vs. 46.7-55.9%, mean 51.9%, respectively), a longer snout (44.1-52.3% of HL, mean 48.9% vs. 37.6-42.1%, mean 39.8%, respectively), and, to a lesser degree, a larger eye diameter (14.7-18.5% of HL, mean 16.3% vs. 11.9-15.5%, mean 13.3%, respectively), more rays in the continuous caudodorsal and anal fins (range 150-165, mode 156 vs. 139-149, mode 147, respectively), more gill rakers on the first arch (range 31-35, mode 31 vs. 18-22, mode 21, respectively), and prominent (vs. reduced) posterior serrae on the pectoral-fin spine, respectively (Ref. 96080).
Inhabits coastal rivers (Ref. 96080).
Life cycle and mating behavior
Chín muồi sinh dục | Sự tái sinh sản | Đẻ trứng | Các trứng | Sự sinh sản | Ấu trùng
Welsh, S.A., D.R. Jerry and D.W. Burrows, 2014. A new species of freshwater eel-tailed catfish of the genus Tandanus (Teleostei: Plotosidae) from the wet tropics region of Eastern Australia. Copeia 2014(1):136-142. (Ref. 96080)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Thêm thông tin
Age/SizeSự sinh trưởngLength-weightLength-lengthLength-frequenciesSinh trắc họcHình thái họcẤu trùngSự biến động ấu trùngBổ xungSự phong phúBRUVS
Các tài liệu tham khảoNuôi trồng thủy sảnTổng quan nuôi trồng thủy sảnCác giốngDi truyềnElectrophoresesDi sảnCác bệnhChế biếnNutrientsMass conversion
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00741 (0.00302 - 0.01820), b=3.08 (2.88 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Mức dinh dưỡng (Ref.
69278): 3.5 ±0.6 se; based on size and trophs of closest relatives
Thích nghi nhanh (Ref.
120179): Trung bình, thời gian nhân đôi của chủng quần tối thiểu là 1.4 - 4.4 năm (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (38 of 100).
