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Chromis crusma (Valenciennes, 1833)
VALPARAISO CHROMIS
Life   Vertebrata   Fish   Pomacentridae   Chromis

Chromis crusma
© Copyright Photographer/SFTEP, 2002 · 0
Chromis crusma

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Overview
Main identification features
  • body deep;blue-grey
  • dorsal fin xiii: rear spines less than central spines
  • tips dorsal and anal finsround
  • pectoral passes anal fin origin
  • length tail fin ~ head
Body deep, strongly compressed, back strongly arched; head large (31-34% of total length); snout short, blunt; mouth short, oblique, terminal; dorsal XIII (rarely XIV) spines, rear spines shorter than middle spines, 11-13 rays; anal II, usually 12 (rarely 11 or 13) rays; ends of soft dorsal and soft anal rounded; pectoral long (reaching past anal origin, 30-37% of total length) 19-21 rays; tail moderately forked, top lobe ~ head length; lateral line scales 31-37

Blue-grey above, shading to paler below; fins pale grey.

Size: reaches 19 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: 19 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;


Names
Scientific source:

Links to other sites

References
  • Béarez, P., 1996., Lista de los Peces Marinos del Ecuador Continental., Revista de Biologia Tropical, 44:731-741.
  • Cuvier , G. and Valenciennes, A., 1833., Histoire naturelle des poissons. Tome neuvième. Suite du livre neuvième. Des Scombéroïdes., Histoire Naturelle Des Poissons, 9:1-512.
  • Hildebrand, S.F., 1946., A descriptive catalog of the shore fishes of Peru., Bull. U.S. Nat. Mus., 189:1-530.
  • Hooker, Y., 1998., Fauna asociada a las aguas cálidas presentes en la Bahía de Pucusana durante El Niño 1997-98, Junio a Julio de 1997., Instituto del Mar del Peru, Informe., 85:3-20.
  • Jimenez-Prado, P., Béarez, P., 2004., Peces marinos del Ecuador continental / Marine fishes of continental Ecuador., SIMBIOE/NAZCA/IFEA tomo 1 y 2.
  • Starks, E. C., 1906., On a Collection of fishes made by P. O. Simons in Ecuador and Peru., Proc. U.S. Nat. Mus., 30:761-800.

Acknowledgements

I thank Ashley MacDonald and John Pickering, University of Georgia, for technical support in building this page.


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