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Teleostei (teleosts) >
Characiformes
(Characins) >
Characidae
(Characins; tetras) > Stethaprioninae
Etymology:
Hyphessobrycon:
Greek, hyphesson, -on, -on = a little smaller + Greek, bryko = to bite (Ref.
45335
)
;
weitzmanorum:
The specific name honors Stanley and Marilyn Weitzman, for their life-long interest and extensive coontributions to the knowledge of Neotropical freshwater fishes. Including are several papers adressing the systematics of
Hyphessobrycon
and related
.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Vertebrae
: 32 - 33.
Hyphessobrycon weitzmanorum
is distinguished from all congeners, except
H. tortuguerae
Böhlke,
H. bifasciatus
Ellis,
H. savagei
Bussing,
H. flammeus
Myers,
H. griemi
Hoedeman,
H. balbus
Myers,
H. itaparicensis
Lima & Costa, and
H. columbianus
Zarske & Géry, by possessing two humeral spots.
H. weitzmanorum
is distinguished from
H. bifasciatus
,
H. savagei
,
H. flammeus
,
H. tortuguerae
,
H. griemi
,
H. itaparicensis
, and
H. columbianus
by possessing a general dark color pattern, due to a high concentration of dark chromatophores uniformly distributed over the lateral surfaces of the body (vs. a general clear color pattern, with few, scattered chromatophores over the lateral surfaces of the body). Additionally,
Hyphessobrycon weitzmanorum
differs from
H. bifasciatus
,
H. griemi
and
H. tortuguerae
by possessing two intensely pigmented, vertically-elongate humeral spots (vs. second humeral blotch fainter in
H. bifasciatus
; first humeral blotch fainter in
H. griemi
; and both humeral blotches small, not vertically-elongate in
H. tortuguerae
).
Hyphessobrycon weitzmanorum
is distinguished from
H. flammeus
and
H. savagei
by possessing wide humeral blotches, with somewhat rounded margins (vs. humeral blotches narrow, with straight margins).
Hyphessobrycon weitzmanorum
is distinguished from
H. balbus
in possessing 5 -9 perforated lateral line scales (vs. 11 - 22) and in having the second humeral blotch intensely pigmented (vs. very faint).
Hyphessobrycon weitzmanorum
is distinguished from
H. itaparicensis
Lima & Costa (2001), by possessing a lower number of branched anal-fin rays (17 - 21, vs. 22 - 25) and lack of a midlateral, horizontal stripe, crimson in life, that extends from the vertical just posterior of the dorsal-fin origin to the caudal peduncle.
Hyphessobrycon weitzmanorum
is distinguished from
H. columbianus
Zarske & Géry (2002), by possessing a lower number of branched anal-fin rays (17 - 21, vs. 23 - 24) and orange pigmentation in life on the caudal, anal, dorsal and pelvic fins (vs. red pigmentation on caudal, and anal) (Ref.
52338
).
Life cycle and mating behavior
Maturity
|
Reproduction
|
Spawning
|
Eggs
|
Fecundity
|
Larvae
Lima, F.C.T. and C.R. Moreira
, 2003. Three new species of
Hyphessobrycon
(Characiformes: Characidae) from the upper rio Araguaia basin in Brazil. Neotrop. Ichthyol. 1(1):21-33. (Ref.
52338
)
Phylogenetic diversity index (Ref.
82804
): PD
50
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01413 (0.00671 - 0.02974), b=3.08 (2.91 - 3.25), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245
).
Trophic level (Ref.
69278
): 2.9 ±0.3 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).
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