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Synodontis serpentis, Tana squeaker : fisheries
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Synodontis serpentis
Picture by
de Vos, L.
Teleostei (teleosts) >
Siluriformes
(Catfishes) >
Mochokidae
(Squeakers or upside-down catfishes) > Mochokinae
Etymology:
Synodontis:
Greek, syn, symphysis = grown together + Greek, odous = teeth (Ref.
45335
)
.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; benthopelagic. Tropical
Africa: Athi and Tana River basins, Kenya (Ref.
52331
,
82238
,
96595
).
Size / Weight / Age
Maturity: L
m
 
?
  range ? - ? cm
Max length : 12.4 cm TL male/unsexed; (Ref.
3202
)
Oviparous (Ref.
205
). Inhabits small streams, main rivers and flooded pools (Ref.
30558
). Extremely abundant in ox-bow lakes and river cut-offs in the Lower Tana River (Ref.
39831
). Breeding occurs shortly after floods, when ripe fish enter small streams leading to floodwater pools, where they breed; this migration is rather sudden, adult fish migrate in large schools upstream over a period of less than a week (3 to 4 days); one or two additional smaller migrations may occur after the main peak; the stimulus triggering this migration is probably closely connected with rainfall (Ref.
96595
).
Life cycle and mating behavior
Maturity
|
Reproduction
|
Spawning
|
Eggs
|
Fecundity
|
Larvae
Oviparous (Ref.
205
). Distinct pairing during breeding (Ref.
205
).
Gosse, J.-P.
, 1986. Mochokidae. p. 105-152. In J. Daget, J.-P. Gosse and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ISNB, Brussels, MRAC, Tervuren; and ORSTOM, Paris. Vol. 2. (Ref.
3202
)
IUCN Red List Status (Ref.
130435
)
Least Concern (LC)
; Date assessed:
29 June 2022
CITES
Not Evaluated
Not Evaluated
Threat to humans
Harmless
Human uses
Fisheries:
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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=0.01122 (0.00437 - 0.02882), b=2.97 (2.77 - 3.17), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245
).
Trophic level (Ref.
69278
): 2.9 ±0.4 se; based on size and trophs of closest relatives
Resilience (Ref.
120179
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153
): Low vulnerability (10 of 100).
Price category (Ref.
80766
):
Unknown
.
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mrius-barile
- 20 July 2016
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