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Trimma annosum, Grey-bearded pygmygoby
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Trimma annosum
Picture by
Hazes, B.
Teleostei (teleosts) >
Gobiiformes
(Gobies) >
Gobiidae
(Gobies) > Gobiinae
Etymology:
Trimma:
Greek, trimma, -atos = something crushed (Ref.
45335
)
;
annosum:
Named in allusion to the plain grey cheek of the species, which is perhaps reminiscent of that class of elderly hirsute human males sometimes referred to as 'greybeards' (Ref.
49832
)
.
More on author:
Winterbottom
.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; reef-associated; depth range 1 - 60 m (Ref.
100726
). Tropical
Indo-West Pacific: Maldives and India to Papua New Guinea.
Size / Weight / Age
Maturity: L
m
 
?
  range ? - ? cm
Max length : 2.8 cm SL male/unsexed; (Ref.
100726
)
Dorsal
spines
(total): 7;
Dorsal
soft rays
(total): 8;
Anal
spines
: 1;
Anal
soft rays
: 8. This species is distinguished by the following characters: a shallow concave bony interorbital about half pupil-diameter in width; predorsal is completely covered with ctenoid scales, no naked patches, a large scale above and between the end of the eyes above the posterior half of the pupil; cheek no scales; operculum often with a single large ctenoid scale dorsally, often followed by a smaller cycloid scale posteriorly; pectoral-fin base with 3 large vertically elongate cycloid scales; prepelvic area has 4-5 rows of cycloid scales, 1 enlarged scale between the bases of the pelvic spines; pectoral rays normally unbranched, rarely with up to 4 rays with a single branch; fifth pelvic-fin ray branched once dichotomously, rarely branched twice resulting in 3 terminal tips, 40-65% the length of the fourth; no trough or groove posterodorsal to the eye; second and third dorsal spines subequal in length, not elongated; colour of head bluish grey, cheek uniform in colour, in life a yellowish orange spot about the size of the pupil on the middle of the anterior part of the operculum, a similar sized spot dorsally and posteriorly on the operculum, a smaller yellowish orange spot behind eye; central on the pectoral base is an oval yellowish orange to reddish orange spot; body with moderate sized yellowish orange spots in 4 rows anteriorly converging to 3 on the caudal peduncle; body is fully scaled; without nape crest; dorsal and anal rays usually I,8 (Ref.
100726
).
Inhabits reef caves and crevices in 1-14 m (Ref.
90102
).
Life cycle and mating behavior
Maturity
|
Reproduction
|
Spawning
|
Eggs
|
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|
Larvae
Winterbottom, R.
, 2003. A new species of the gobiid fish
Trimma
from the western Pacific and northern Indian Ocean coral reefs, with a description of its osteology. Zootaxa 218:1-24. (Ref.
49832
)
IUCN Red List Status (Ref.
130435
)
Least Concern (LC)
; Date assessed:
10 March 2015
CITES
Not Evaluated
Not Evaluated
Threat to humans
Harmless
Human uses
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Estimates based on models
Preferred temperature (Ref.
123201
): 25.5 - 29, mean 28 °C (based on 862 cells).
Phylogenetic diversity index (Ref.
82804
): PD
50
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01023 (0.00477 - 0.02194), b=3.02 (2.84 - 3.20), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245
).
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).
Nutrients (Ref.
124155
): Calcium = 314 [140, 851] mg/100g; Iron = 1.5 [0.7, 3.1] mg/100g; Protein = 18.1 [16.0, 19.9] %; Omega3 = 0.184 [0.068, 0.450] g/100g; Selenium = 31.5 [11.8, 76.7] μg/100g; VitaminA = 130 [32, 526] μg/100g; Zinc = 3.66 [2.14, 5.83] mg/100g (wet weight);
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