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Dascyllus strasburgi, Strasburg's dascyllus
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Strasburg's dascyllus
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Dascyllus strasburgi
Picture by
Randall, J.E.
Teleostei (teleosts) >
Ovalentaria/misc
(Various families in series Ovalentaria) >
Pomacentridae
(Damselfishes) > Chrominae
Etymology:
Dascyllus:
Greek, daskillys, -on = a kind of fish (Ref.
45335
)
.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; reef-associated; non-migratory; depth range 5 - 15 m (Ref.
7247
). Tropical; 5°S - 10°S
Eastern Central Pacific: endemic to the Marquesas Islands.
Size / Weight / Age
Maturity: L
m
 
?
  range ? - ? cm
Max length : 9.0 cm SL male/unsexed; (Ref.
7247
)
Dorsal
spines
(total): 12;
Dorsal
soft rays
(total): 15-16;
Anal
spines
: 2;
Anal
soft rays
: 14 - 15
Adults inhabit coral and rocky reefs. The two specimens at the Bishop Museum were collected off Matahumu Point, Patu Hiva, Marquesas Islands in 6 to 12 meters (Ref.
7247
). Feeds on zooplanktons (Ref.
89972
). Life history characteristics for the family specify that this group is oviparous, with distinct pairing during breeding (Ref.
205
). Eggs are demersal and adhere to the substrate (Ref.
205
). Males guard and aerate the eggs (Ref.
205
). Diurnal species (Ref. 54980;
113699
).
Life cycle and mating behavior
Maturity
|
Reproduction
|
Spawning
|
Eggs
|
Fecundity
|
Larvae
Life history characteristics for the family specify that this group is oviparous, with distinct pairing during breeding (Ref.
205
). Eggs are demersal and adhere to the substrate (Ref.
205
). Males guard and aerate the eggs (Ref.
205
).
Allen, G.R.
, 1991. Damselfishes of the world. Mergus Publishers, Melle, Germany. 271 p. (Ref.
7247
)
IUCN Red List Status (Ref.
130435
)
Least Concern (LC)
; Date assessed:
23 September 2021
CITES
Not Evaluated
Not Evaluated
Threat to humans
Harmless
Human uses
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Estimates based on models
Preferred temperature (Ref.
123201
): 27.9 - 28.1, mean 28.1 °C (based on 11 cells).
Phylogenetic diversity index (Ref.
82804
): PD
50
= 0.5005 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02089 (0.00940 - 0.04644), b=2.98 (2.80 - 3.16), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245
).
Trophic level (Ref.
69278
): 3.0 ±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).
Nutrients (Ref.
124155
): Calcium = 126 [61, 211] mg/100g; Iron = 0.875 [0.503, 1.482] mg/100g; Protein = 18.2 [16.9, 19.3] %; Omega3 = 0.113 [0.062, 0.198] g/100g; Selenium = 19 [9, 40] μg/100g; VitaminA = 168 [48, 587] μg/100g; Zinc = 1.65 [1.07, 2.46] mg/100g (wet weight);
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