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Ptereleotris heteroptera, Blacktail goby : aquarium
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Ptereleotris heteroptera
Picture by
Randall, J.E.
Teleostei (teleosts) >
Gobiiformes
(Gobies) >
Microdesmidae
(Wormfishes) > Ptereleotrinae
Etymology:
Ptereleotris:
Greek, pteron = wing, fin + The name of a Nile fish, eleotris (Ref.
45335
)
.
More on author:
Bleeker
.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; reef-associated; depth range 5 - 80 m (Ref.
128797
), usually 5 - 15 m (Ref.
27115
). Tropical; 22°C - 27°C (Ref.
27115
); 35°N - 35°S
Indo-Pacific: Red Sea and East Africa to the Hawaiian, Line, Marquesas, and Society Islands, north to the Ryukyu Islands, south to Lord Howe Island; Mariana, Caroline, and Marshall Islands in Micronesia.
Size / Weight / Age
Maturity: L
m
 
?
  range ? - ? cm
Max length : 14.0 cm TL male/unsexed; (Ref.
2798
)
Dorsal
spines
(total): 7;
Dorsal
soft rays
(total): 29-33;
Anal
spines
: 1;
Anal
soft rays
: 27 - 30;
Vertebrae
: 26. Light blue to pale bluish gray; upper edge of operculum with a longitudinal iridescent blue band divided into 2 sections. Caudal fin yellowish, some with an orangish streak passing anteriorly from spot; 1st dorsal fin not as high as the 2nd; 2nd dorsal and anal fins not elevated anteriorly; pelvic fins not long; base of pectoral fin usually with a blue-edged salmon-pink spot.
Occurs in lagoons or bays, in passes, or on outer reef slopes; over hard substrate as well as patches of rubble or sand, usually at the base of the reef. Adults are usually in pairs and share burrow which is often under a piece of rubble or slab of coral rock. Adults feed on current-borne zooplankton as high as 3 m above the burrow; tend to remain together while feeding, separated by not more than 1-2 m. Monogamous (Ref.
52884
,
48637
). Juveniles occur in large groups, as many as 500. Minimum depth reported from Ref. 27115.
Life cycle and mating behavior
Maturity
|
Reproduction
|
Spawning
|
Eggs
|
Fecundity
|
Larvae
Randall, J.E. and D.F. Hoese
, 1985. Revision of the Indo-Pacific dartfishes, genus
Ptereleotris
(Perciformes: Gobioidei). Indo-Pac. Fish. (7):36 p. (Ref.
528
)
IUCN Red List Status (Ref.
130435
)
Least Concern (LC)
; Date assessed:
12 March 2015
CITES
Not Evaluated
Not Evaluated
Threat to humans
Harmless
Human uses
Aquarium: commercial
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Zoological Record
Estimates based on models
Preferred temperature (Ref.
123201
): 24.5 - 29.2, mean 28.1 °C (based on 2894 cells).
Phylogenetic diversity index (Ref.
82804
): PD
50
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref.
93245
).
Trophic level (Ref.
69278
): 3.4 ±0.45 se; based on food items.
Fishing Vulnerability (Ref.
59153
): Low vulnerability (10 of 100).
Nutrients (Ref.
124155
): Calcium = 104 [55, 171] mg/100g; Iron = 0.801 [0.485, 1.321] mg/100g; Protein = 18.1 [17.0, 19.2] %; Omega3 = 0.0967 [, ] g/100g; Selenium = 30.9 [14.9, 63.9] μg/100g; VitaminA = 187 [66, 557] μg/100g; Zinc = 1.77 [1.19, 2.47] mg/100g (wet weight);
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