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Overview |
Main identification features
- head large, depressed; groove across nape;
- side- row dark spots
- tail fin base - y shaped blotch
- top jaw extends onto opercle
- male: anal fin - black stripe
Elongate; head large, depressed; transverse groove across nape; eyes on top and close together; mouth large, upper jaw bone very long, reaching onto opercle; 11-13 rakers on 1st gill arch; pelvics fused to form disc; dorsal IV-V + I, 13-15; anal I, 12-15, long base; pelvics short, not reaching near to anus; pectorals long, reaching past end of pelvics, 19 rays; tail long, blunt point; midlateral scales ~50.
Color variable: dark to light above, paler below, head and body with dark speckles; tail with 6-7 thin bars; spinous dorsal dark blotches; row of dark spots along midflank; lateral Y shape mark just before tail fin; male with thick black stripe along middle of anal fin.
Size: 7.0 cm (4.2 cm in the Gulf of California).
Habitat: mud flats of lagoons and river mouths, at times in worm or shrimp burrows.
Depth: 0-6 m.
California to Gulf of California.
Attributes
Abundance: Common.
Cites: Not listed.
Climate Zone: North Temperate (Californian Province &/or Northern Gulf of California); Northern Subtropical (Cortez Province + Sinaloan Gap).
Depth Range Max: 6 m.
Depth Range Min: 0 m.
Diet: mobile benthic worms; mobile benthic gastropods/bivalves; mobile benthic crustacea (shrimps/crabs).
Eastern Pacific Range: Northern limit=34; Southern limit=24; Western limit=-119; Eastern limit=-110; Latitudinal range=10; Longitudinal range=9.
Egg Type: Benthic; Pelagic larva.
Feeding Group: Carnivore.
FishBase Habitat: Demersal.
Global Endemism: TEP non-endemic; East Pacific endemic; All species.
Habitat: Estuary; Mud; Soft bottom (mud, sand,gravel, beach, estuary & mangrove); Soft bottom only.
Inshore Offshore: Inshore; Inshore Only.
IUCN Red List: Not evaluated / Listed.
Length Max: 7 cm.
Regional Endemism: Continent only; Continent; Temperate Eastern Pacific, primarily; Tropical Eastern Pacific (TEP) non-endemic; California province, primarily; All species.
Residency: Resident.
Salinity: Brackish; Non Marine.
Water Column Position: Bottom; Bottom only;
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Names |
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Links to other sites |
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References |
- Balart , E. F. , Castro-Aguirre , J. L. and De Lachica-Bonilla, F., 1997., Análisis comparativo de las comunidades ícticas de fondos blandos y someros de la Bahía de La Paz, B.C. S.. En Urbán Ramírez, J. y M. Ramírez Rodríguez (Eds.). La Bahía de La Paz investigación y conservación., Universidad Autónoma de Baja California Sur:177-188.
- Birdsong , R. S. , Murdy , E. O. and Pezold, F. L., 1988., A study of the vertebral column and median fin osteology in gobioid fishes with comments on gobioid relationships., Bull. Mar. Sci., 42:174-214.
- Brothers, E. B., 1975., The comparative ecology and behavior of three sympatric California gobies. Ph.D. diss., Univ. California.
- Castri-Aguirre, J.L., Espinoza-Pérez, H. and Schmitter-Soto, J.J., 2002., Lista sitemática, biogeográfica y ecológica de la ictiofauna estuarino lagunar y vicaria de México. En: Lozano-Vilano, M. L. (Ed.). Libro Jubilar en Honor al Dr. Salvador Contreras Balderas., Universidad Autonoma de Nuevo León:117-142.
- Castro-Aguirre , J. L. and Balart, E. F., 1997., Contribución al conocimiento de la ictiofauna de fondos blandos y someros de la Ensenada de La Paz y Bahía de La Paz, B.C.S.. En Urbán Ramírez, J. y M. Ramírez Rodríguez (Eds.). La Bahía de La Paz investigación y conservación., Universidad Autónoma de Baja California Sur:139-150.
- Castro-Aguirre, J.L., 1999., Ictiofauna estuarino-lagunar y vicaria de México., Editorial Limusa S.A. de C.V.: 1-629pp.
- Eschmeyer , W. N. , Herald , E. S. and Hamman, H., 1983., A field guide to Pacific coast fishes of North America from the Gulf of Alaska to Baja California. Peterson Field Guide Ser. 28., Houghton Mifflin:336pp.
- Findley, L.T., Hendrickx, M.E., Brusca, R.C., van der Heiden, A.M., Hastings, P.A., Torre, J., 2003., Diversidad de la Macrofauna Marina del Golfo de California, Mexico., CD-ROM versión 1.0. Projecto de la Macrofauna del Golfo . Derechos reservados de los autores y Conservación Internacional.
- Galván-Magaña, F., Gutiérrez-Sánchez, F., Abitia-Cárdenas, L.A., Rodríguez-Romero, J., 2000., The distribution and affinities of the shore fishes of the Baja California Sur lagoons. In Aquatic Ecosystems of Mexico: Status and Scope. Eds. M. Manuwar, S.G. Lawrence, I.F. Manuwar & D.F. Malley. Ecovision World Monograph Series., Backhuys Publishers:383-398.
- Jenkins , O.P. and Evermann, B.W., 1889., Description of eighteen new species of fishes from the Gulf of California., Proc. U.S. Nat. Mus., 11:137-158.
- Jordan , D.S. and Evermann, B.W., 1898., The fishes of North and Middle America: a descriptive catalogue of the species of fish-like vertebrates found in the waters of North America, north of the Isthmus of Panama. Part III., Bull. U.S. Nat. Mus., 47:2183-3136.
- Love, M.S., Mecklenburg, C.W., Mecklenburg, T.A., Thorsteinson, L.K., 2005., es of the West Coast and Alaska: a checklist of North Pacific and Artic Ocena species from Baja California to the Alaska-Yukon border., U.S. Department of the Interior, U.S. Geological Survey, Biological Resources Division, 288pp.
- Minckley, W.L., 2002., Fishes of the lowermost colorado river, its delta, and estuary: a commentary on biotic change. En: Lozano-Vilano, M. L. (Ed.). Libro Jubilar en Honor al Dr. Salvador Contreras Balderas., Universidad Autonoma de Nuevo León:63-78.
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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=Quietula&speciesname=y-cauda ---> http://192.134.151.83/Summary/speciesSummary.php?genusname=Quietula&speciesname=y-cauda http://192.134.151.83/Summary/speciesSummary.php?genusname=Quietula&speciesname=y-cauda ---> https://fishbase.mnhn.fr/Summary/speciesSummary.php?genusname=Quietula&speciesname=y-cauda https://fishbase.mnhn.fr/Summary/speciesSummary.php?genusname=Quietula&speciesname=y-cauda ---> https://fishbase.mnhn.fr/summary/Quietula-y-cauda.html
Quietula y-cauda, American shadow goby
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drawing shows typical species in Gobiidae.
Teleostei (teleosts) >
Gobiiformes
(Gobies) >
Gobiidae
(Gobies) > Gobionellinae
Etymology:
Quietula:
Latin, quietus = quiet (Ref.
45335
)
.
More on authors:
Jenkins
&
Evermann
.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; brackish; demersal. Subtropical
Eastern Pacific: Morro Bay in central California, USA to the Gulf of California.
Size / Weight / Age
Maturity: L
m
 
?
  range ? - ? cm
Max length : 7.0 cm TL male/unsexed; (Ref.
2850
)
Facultative air-breathing in the genus (Ref.
126274
); Found in mud flats of lagoons and river mouths. Sometimes occurs in worm or shrimp burrows. Oviparous (Ref.
56079
). Males guard the eggs which are found attached to the walls of burrows (Ref.
56079
).
Life cycle and mating behavior
Maturity
|
Reproduction
|
Spawning
|
Eggs
|
Fecundity
|
Larvae
Oviparous (Ref.
56079
).
Eschmeyer, W.N., E.S. Herald and H. Hammann
, 1983. A field guide to Pacific coast fishes of North America. Boston (MA, USA): Houghton Mifflin Company. xii+336 p. (Ref.
2850
)
IUCN Red List Status (Ref.
130435
)
Least Concern (LC)
; Date assessed:
25 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
): 15.3 - 25.9, mean 22.4 °C (based on 138 cells).
Phylogenetic diversity index (Ref.
82804
): PD
50
= 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00977 (0.00442 - 0.02163), b=3.05 (2.86 - 3.24), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245
).
Trophic level (Ref.
69278
): 3.3 ±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).
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Updated: 2024-06-20 08:24:03 gmt
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