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Eviota rubra, Red dwarfgoby
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Red dwarfgoby
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Eviota rubra
Picture by
Randall, J.E.
Teleostei (teleosts) >
Gobiiformes
(Gobies) >
Gobiidae
(Gobies) > Gobiinae
Etymology:
Eviota:
No etymology given, suggested by Christopher Scharpt: from Latin 'eu' for 'true' and 'iota' for anything very small, in combination 'truly very small' referring to it as being the smallest vertebrate at the time it has benn described by Jenkins (thus, making the suggestion by Scharpt plausible.
;
rubra:
Specific name refers to its red coloration.
.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; reef-associated; depth range 12 - 29 m (Ref.
113727
). Tropical
Distribution
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Faunafri
Eastern Central Pacific: Hawaii.
Size / Weight / Age
Maturity: L
m
 
?
  range ? - ? cm
Max length : 1.3 cm SL male/unsexed; (Ref.
113727
)
Short description
Morphology
|
Morphometrics
Dorsal
spines
(total): 7;
Dorsal
soft rays
(total): 8-9;
Anal
spines
: 7-9. This species is distinguished by the following characters: rugose genital papillae in both sexes; no IT pores; POP pores present; 5th pelvic fin ray small, unbranched, about 1/10 length of 4th ray (usually poorly ossified and not easy to see); anterior-most branch of 4th pelvic ray elongate, with at least 9 segments; D1 spines not prolonged as filaments. pectoral fin rays 9-16 may be branched; absence of dark ventral-midline spots or mid-peduncular subcutaneous spot towards midbase of caudal fin; (Ref.
38034
).
A miniature, deep-water species collected at ledge and spur and groove habitats from 12.2-28.7 m and 9.4-10.4 m depths. This species co=exist with
Eviota epiphanes
in the spur and groove habitat at 12.2-15.2 m but not shallower. It is one of the smaller
Eviota
species with females having mature eggs at 1.1 cm SL size (Ref.
38034
).
Life cycle and mating behavior
Maturity
|
Reproduction
|
Spawning
|
Eggs
|
Fecundity
|
Larvae
Greenfield, D.W. and R. Winterbottom
, 2016. A key to the dwarfgoby species (Teleostei: Gobiidae:
Eviota
) described between 1871 and 2016. J. Ocean Sci. Found. 24:35-90. (Ref.
113727
)
IUCN Red List Status (Ref.
130435
)
Least Concern (LC)
; Date assessed:
09 March 2015
CITES
Not Evaluated
Not Evaluated
Threat to humans
Harmless
Human uses
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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=0.00708 (0.00333 - 0.01504), b=3.09 (2.92 - 3.26), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245
).
Trophic level (Ref.
69278
): 3.0 ±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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