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Synbranchiformes (Spiny eels) >
Mastacembelidae (Spiny eels)
Etymology: Mastacembelus: Greek, mastax, -agos = bite + Greek, emballo = to throw oneself (Ref. 45335); shiloangoensis: Named for the Shiloango River basin, to which the species seems to be endemic (Ref. 52436).
Environment: milieu / climate zone / depth range / distribution range
البيئة
; المياه العذبة قاعية التغذية و المعيشة. Tropical
Africa: endemic to the Chiloango River basin in Democratic Republic of the Congo (Ref. 52436, 81678) and Angola (Ref. 120641).
الحجم / وزن / العمر
Maturity: Lm ? range ? - ? cm
Max length : 14.4 cm SL ذكر/ مختلط الجنس; (Ref. 52436)
الأشواك الظهرية (المجموع) : 25 - 27; الأشعة الظهرية الناعمة (المجموع) : 72 - 85; شوكة شرجية: 3; أشعه شرجية لينه: 66 - 79; فقرات: 86 - 88. Diagnosis: head length 14.2-14.9% SL (mean 14.6%), decreasing with size (Ref. 81678). Origin of first dorsal spine situated behind posterior edge of pectoral fin, 2.5-9.9% SL (mean 5.3%)(Ref. 52436, 81678). Body depth 6.7% SL; distance from tip of snout to last externally visible dorsal spine 50.5-51.6% SL (mean 51.2%), decreasing with size (Ref. 81678). Origin of soft dorsal fin clearly anterior to origin of soft anal fin (Ref. 52436, 81678). Lower jaw length 21.3-26.9% HL (mean 23.9%), increasing with size; distance from gill opening to dorsal pectoral fin base 4.3-9.6% HL (Ref. 81678). 24+1 to 26+1 (median 25+1) dorsal spines; no preorbital spines; no preopercular spines (Ref. 52436, 81678). Color pattern characterized by a series of mediodorsally situated dark brown to black spots on body, tail and proximal parts of dorsal and anal fins (Ref. 52436).
Occurs in streams (Ref. 52436). Maximum reported total length 151 mm (Ref. 81678).
Life cycle and mating behavior
النضج | التكاثر | وضع البيض | بيض | الخصوبة | Larvae
Vreven, E.J., 2004. Aethiomastacembelus shiloangoensis, a new spiny-eel fron the Shiloango River basin, Africa (Synbranchiformes: Mastacembelidae). Ichthyol. Explor. Freshwat. 15(2):97-104. (Ref. 52436)
IUCN Red List Status (Ref. 130435: Version 2024-2)
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مصادر علي الأنترنت
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00269 (0.00128 - 0.00564), b=2.94 (2.76 - 3.12), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
مستوى غذائي (Ref.
69278): 3.6 ±0.6 se; based on size and trophs of closest relatives
المرونه (Ref.
120179): عالي, الحد الزمني الأدني لتضاعف عدد أفراد المجتمع أقل من 15 شهر (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
