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Overview |
Main identification features
- body deep;blue-grey
- dorsal fin xii, rear spines = central spines
- tips dorsal and anal finsangular
- pectoral not reaching anal fin origin
- length tail fin greater than head
Body deep, strongly compressed, back strongly arched; head moderate (27-31% of total length); snout short, blunt; mouth short, oblique, terminal; dorsal XII spines, rear spines not shorter than middle spines, 14 (occasionally 13 or 15) rays; anal II+ 13-14 rays; ends of soft dorsal and soft anal distinctly angular; pectoral moderate, usually not reaching anal origin, 28-30% of total length, 19-21 rays; tail deeply forked, top lobe distinctly longer than head; lateral line scales 20-21.
Blue grey above, shading to paler below; fins dark grey.
Size: reaches 28 cm.
Habitat: benthic on shallow rocky reefs.
Depth: 5-35 m?.
Ecuador to Chile.
Attributes
Abundance: Common.
Cites: Not listed.
Climate Zone: Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo); South Temperate (Peruvian Province ).
Depth Range Max: 35 m.
Depth Range Min: 5 m.
Diet: zooplankton; pelagic fish eggs.
Eastern Pacific Range: Northern limit=-2; Southern limit=-9; Western limit=-82; Eastern limit=-79; Latitudinal range=7; Longitudinal range=3.
Egg Type: Benthic; Pelagic larva.
Feeding Group: Planktivore.
FishBase Habitat: Reef Associated.
Global Endemism: TEP non-endemic; East Pacific endemic; All species.
Habitat: Reef associated (reef + edges-water column & soft bottom); Rocks; Reef (rock &/or coral); Reef only.
Inshore Offshore: Inshore; Inshore Only.
IUCN Red List: Not evaluated / Listed.
Length Max: 28 cm.
Regional Endemism: Continent; Temperate Eastern Pacific, primarily; Tropical Eastern Pacific (TEP) non-endemic; Peruvian province, primarily; Continent only; All species.
Residency: Vagrant.
Salinity: Marine; Marine Only.
Water Column Position: Bottom; Near Bottom; Bottom + water column;
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Names |
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Links to other sites |
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References |
- Béarez, P., 1996., Lista de los Peces Marinos del Ecuador Continental., Revista de Biologia Tropical, 44:731-741.
- Evermann , B. W. and Radcliffe, L., 1917., The fishes of the West Coast of Peru and the Titicaca Basin., Bull. U.S. Nat. Mus., 95:1-166.
- Hildebrand, S.F., 1946., A descriptive catalog of the shore fishes of Peru., Bull. U.S. Nat. Mus., 189:1-530.
- Jimenez-Prado, P., Béarez, P., 2004., Peces marinos del Ecuador continental / Marine fishes of continental Ecuador., SIMBIOE/NAZCA/IFEA tomo 1 y 2.
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Acknowledgements |
I thank Ashley MacDonald and John Pickering, University of Georgia, for technical support in building this page.
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http://www.fishbase.org/Summary/speciesSummary.php?genusname=Chromis&speciesname=intercrusma ---> http://192.134.151.83/Summary/speciesSummary.php?genusname=Chromis&speciesname=intercrusma http://192.134.151.83/Summary/speciesSummary.php?genusname=Chromis&speciesname=intercrusma ---> https://fishbase.mnhn.fr/Summary/speciesSummary.php?genusname=Chromis&speciesname=intercrusma https://fishbase.mnhn.fr/Summary/speciesSummary.php?genusname=Chromis&speciesname=intercrusma ---> https://fishbase.mnhn.fr/summary/Chromis-intercrusma.html
Azurina intercrusma, Peruvian chromis
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Azurina intercrusma
Picture by
Jimenez Prado, P.
Classification / Names
Common names
|
Synonyms
| Catalog of Fishes(
genus
,
species
) |
ITIS
|
CoL
|
WoRMS
|
Cloffa
Teleostei (teleosts) >
Ovalentaria/misc
(Various families in series Ovalentaria) >
Pomacentridae
(Damselfishes) > Chrominae
Etymology:
Azurina:
Latin, azurinus = blue, pale blue; the name of Leuciscus caeruleus, blue Roach; 1600 (Ref.
45335
)
.
More on authors:
Evermann
&
Radcliffe
.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; reef-associated; non-migratory; depth range 0 - 15 m (Ref.
55763
). Tropical
Eastern Pacific: Cabo Blanco, Peru to Tarapaca, Chile; also a questionable record from Juan Fernadez Island off Chile.
Size / Weight / Age
Maturity: L
m
 
?
  range ? - ? cm
Max length : 29.0 cm TL male/unsexed; (Ref.
55763
); common length : 15.0 cm TL male/unsexed; (Ref.
55763
)
Dorsal
spines
(total): 12;
Dorsal
soft rays
(total): 13-14;
Anal
spines
: 2;
Anal
soft rays
: 12 - 14
Adults inhabit rocky reefs; no information on depth range available (Ref.
7247
). Oviparous, distinct pairing during breeding (Ref.
205
). Eggs are demersal and adhere to the substrate (Ref.
205
). Males guard and aerate the eggs (Ref.
205
).
Life cycle and mating behavior
Maturity
|
Reproduction
|
Spawning
|
Eggs
|
Fecundity
|
Larvae
Oviparous, 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:
27 May 2007
CITES
Not Evaluated
Not Evaluated
Threat to humans
Harmless
Human uses
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Zoological Record
Estimates based on models
Preferred temperature (Ref.
123201
): 15.2 - 23.5, mean 19.9 °C (based on 122 cells).
Phylogenetic diversity index (Ref.
82804
): PD
50
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01259 (0.00579 - 0.02736), b=3.03 (2.84 - 3.22), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245
).
Trophic level (Ref.
69278
): 3.5 ±0.5 se; based on size and trophs of closest relatives
Resilience (Ref.
120179
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153
): Low vulnerability (19 of 100).
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- 20 July 2016
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on line
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|
Updated: 2024-04-19 21:49:20 gmt
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