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Ctenogobius sagittula (Gunther, 1861)
LONGTAIL GOBY
Life   Vertebrata   Fish   Gobiidae   Ctenogobius

Ctenogobius sagittula
© Copyright Ross Robertson, 2006 · 12
Ctenogobius sagittula

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Ctenogobius sagittula
© Copyright Gerald Allen, 2006 · 0
Ctenogobius sagittula
español

Overview
Main identification features
  • dorsal fin and c: rows of brown spots
  • tail fin base: dark spot
  • cheek: brown stripe; opercle: dark blotch
  • flank: 4 dark blotches
Dorsal rays VI + I, 12-13; anal rays I, 13; pectoral rays 17; pelvic disc present; midlateral scales 55-65; tail fin much longer than head, with sharp central point; predorsal scales extending forward to level of middle of opercle, but scales absent on mid- dorsal line, anterior to dorsal fin origin; remainder of head scaleless; head pores terminating above preoperculum; an oblique row of papillae posteriorly on operculum.

Light tan with 4 dark brown blotches along middle of side and dark brown spot at middle of caudal fin base; a brown stripe on cheek and brown blotch just behind on center of gill cover; second dorsal and caudal fin with brown spots.

Size: to at least 20 cm.

Inhabits sand or mud bottoms of shallow bays and estuaries.

Depth: 0-5 m.

California to the Gulf of California to Peru.


Attributes
Abundance: Common.
Cites: Not listed.
Climate Zone: North Temperate (Californian Province &/or Northern Gulf of California); Northern Subtropical (Cortez Province + Sinaloan Gap); Northern Tropical (Mexican Province to Nicaragua + Revillagigedos); Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo); South Temperate (Peruvian Province ).
Depth Range Max: 5 m.
Depth Range Min: 0 m.
Diet: benthic microalgae.
Eastern Pacific Range: Northern limit=33; Southern limit=-6; Western limit=-118; Eastern limit=-78; Latitudinal range=39; Longitudinal range=40.
Egg Type: Benthic; Pelagic larva.
Feeding Group: Herbivore.
FishBase Habitat: Demersal.
Global Endemism: Tropical Eastern Pacific (TEP) endemic; East Pacific endemic; All species.
Habitat: Estuary; Mud; Sand & gravel; Soft bottom (mud, sand,gravel, beach, estuary & mangrove); Soft bottom only; Mangrove.
Inshore Offshore: Inshore; Inshore Only.
IUCN Red List: Not evaluated / Listed.
Length Max: 20 cm.
Regional Endemism: Continent; Continent only; TEP endemic; Continental TEP endemic; 3 provinces (Cortez + Mexican + Panamic) endemic; All species.
Residency: Resident.
Salinity: Brackish; Non Marine.
Water Column Position: Bottom; Bottom only;


Names
Scientific source:

Links to other sites

References
  • 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.
  • Béarez, P., 1996., Lista de los Peces Marinos del Ecuador Continental., Revista de Biologia Tropical, 44:731-741.
  • 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.
  • De la Cruz , J. , Galvan , F. , Abitia , L. A. , Rodriguez , J. and Gutierrez, F. J., 1994., Lista sistematica de los peces marinos de Bahia Magdalena, Baja California Sur (Mexico). Systematic List of marine fishes from Bahia Magdalena, Baja California Sur (Mexico)., Ciencias Marinas, 20:17-31.
  • 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.
  • Fischer , W. , Krup , F. , Schneider , W. , Sommer , C. , Carpenter , K. E. and Niem, V. H., 1995., Guia FAO para la Identificacion de Especies de para los fines de la Pesca. Pacifico Centro-Oriental. Volumen II. Vertebrados - Parte 1., FAO2:647-1200.
  • 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.
  • Günther, A., 1862., On a collection of fishes sent by Capt. Dow from the Pacific coast of Central America., Proc. Zool. Soc. London, 1861(3):370-376.
  • Hildebrand, S.F., 1925., Fishes of the Republic of El Salvador, Central America., Bulletin of the Bureau of Fisheries., 41:236-287.
  • Jimenez-Prado, P., Béarez, P., 2004., Peces marinos del Ecuador continental / Marine fishes of continental Ecuador., SIMBIOE/NAZCA/IFEA tomo 1 y 2.
  • 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.
  • Jordan, D.S., 1895., The fishes of Sinaloa., Proceedings of the California Academy of Sciences (Series 2), 5:377-514.
  • Lea, R.N. and Rosenblatt, R.H., 2000., Observations on fishes associated with the 1997-1998 El Niño off California., CalCOFL Rep., 41:117-129.
  • Lopez , M. I. and Bussing, W. A., 1982., Lista provisional de los peces marinos de la Costa Rica., Revista de Biologia Tropical, 30(1):5-26.
  • 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.
  • Meek , S.E. and Hildebrand, S.F., 1928., The marine fishes of Panama. Part III., Field Mus. Nat. Hist., Zool. Ser. Publ., XV:709-1045.
  • Osburn , R. C. and Nichols, J. T., 1916., Shore Fishes Collected by the 'Albatross' Expedition in Lower California with Descriptions of New Species., Bull. Amer. Mus. Nat. Hist., 35:139-181.
  • Pezold III, F. L., 1984., A revision of the gobioid fish genus gobionellus. Ph.D. diss., University of Texas:269 pp.
  • Phillips, P. C., 1981., Annotated Checklist of Fishes at Jiquilisco Bay, El Salvador., Revista de Biologia Tropical, 29:45-58.
  • Ricker, K.E., 1959., Mexican shore and pelagic fishes collected from Acapulco to Cape San Lucas during the 1957 cruise of the "Marijean"., Univ. Brit. Columbia Inst. Fish., Mus. Contrib., 3:18pp.
  • Rubio , R. E. A. and Estupiñan, F., 1990., Ictiofauna del Parque Nacional Natural Sanquianga, un Analisis de su Estructura y Perspectivas para su Manejo., Memorias del VII Seminario Nacional de las Ciencias y Tecnologías del Mar. Comisión Colombiana de Oceanografía. Bogota, Colombia., :660-670.
  • 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.
  • Todd, E.S., 1976., Terrestrial grazing by the eastern tropical Pacific goby 'Gobionellus sagittula'., Copeia, 1976:374-377.
  • Van der Heiden , A. M. and Findley, L. T., 1988., Lista de los peces marinos del sur de Sinaloa, México., Anales del Centro de Ciencias del Mar y Limnologia de la Universidad Autonoma Nacional de Mexico, 15:209-224.

Acknowledgements

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Common name (e.g. trout)

Genus + Species (e.g. Gadus morhua)

Ctenogobius sagittula (Günther , 1862)

Longtail goby Add your observation in Fish Watcher
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Ctenogobius sagittula   AquaMaps   Data sources: GBIF OBIS
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Pictures | Google image Image of Ctenogobius sagittula (Longtail goby) Ctenogobius sagittula
Picture by Allen, G.R.

Classification / Names Common names | Synonyms | Catalog of Fishes ( gen. , sp. ) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Perciformes (Perch-likes) > Gobiidae (Gobies) > Gobionellinae
Etymology: Ctenogobius: Greek, kteis, ktenos = comb + Latin, gobius = gudgeon (Ref. 45335 ) .  More on author: Günther .

Environment: milieu / climate zone / depth range / distribution range Ecology

Marine; brackish; demersal.   Subtropical; 35°N - 19°S, 121°W - 70°W

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Eastern Pacific: San Diego Bay, California, USA (Ref. 2850 ) to Peru.

Size / Weight / Age

Maturity: L m   ?   range ? - ? cm
Max length : 20.0 cm TL male/unsexed; (Ref. 2850 )

Biology     Glossary (e.g. epibenthic)

Inhabits shallow sand or mud bottoms of bays and estuaries. An intertidal species that actively shuttles back and forth between rock pools and air (Ref. 31184 ). For food ingestion it leaves the home pool during low tides, takes a mouth full of mud and returns to its pool where it washes out the mud through its gill membrane and swallows particles which are sieved by the gill rakers (Ref. 92840 ). Breathes air when out of water (Ref. 31184 ).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Allen, G.R. and D.R. Robertson , 1994. Fishes of the tropical eastern Pacific. University of Hawaii Press, Honolulu. 332 p. (Ref. 11482 )

IUCN Red List Status (Ref. 120744 )

  Least Concern (LC)  ; Date assessed: 22 May 2007

CITES (Ref. 118484 )

Not Evaluated

CMS (Ref. 116361 )

Not Evaluated

Threat to humans

  Harmless




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Estimates based on models

Preferred temperature (Ref. 115969 ): 19.5 - 28.9, mean 24.5 (based on 268 cells). Phylogenetic diversity index (Ref. 82805 ):  PD 50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high]. Bayesian length-weight: a=0.00708 (0.00416 - 0.01206), b=2.92 (2.77 - 3.07), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245 ). Trophic Level (Ref. 69278 ):  3.7   ±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.). Vulnerability (Ref. 59153 ):  Low to moderate vulnerability (29 of 100) .

Entered by Froese, Rainer Modified by Reyes, Rodolfo B. Fish Forum
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