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Trinectes fluviatilis S. E. Meek and S. F. Hildebrand, 1928
Life   Vertebrata   Fish   Achiridae   Trinectes

Trinectes fluviatilis
© Copyright Photographer/SFTEP, 2002 · 0
Trinectes fluviatilis

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Main identification features
  • indistinct bars + blotches and spots
  • tail fin barred
  • pectoral usually absent
  • anal fin 41-43
Body oval; head short and deep; eyes moderate (19-23% of head length), close together (space between eyes ~1/2 eye diameter); mouth small, arched, reaching only a little beyond front edge of eye, lower lip on eye-side with short fringes; front margin of head with short tentacles; rear edge of preopercle covered with skin; no opening connecting gill chambers on both sides; no ring of cirri around front nostril on eye-side; opercular flap on blind side mostly scaled; dorsal 53-57 rays, origin on snout; anal 41-43 rays; pectorals normally (2/3 of fish) absent; lateral line from head to tail, straight, on both sides; 90-98 lateral line scales.

Eye-side pale brown, with ~ 10 indistinct dark crossbars, and large dark blotches; fins with small dark spots, forming bars on tail.

Size: to 15 cm.

Habitat: estuarine, entering coastal streams.

Depth: 0-10 m.

Costa Rica to Peru.

Abundance: Common.
Cites: Not listed.
Climate Zone: Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo).
Depth Range Max: 10 m.
Depth Range Min: 0 m.
Diet: bony fishes; mobile benthic crustacea (shrimps/crabs).
Eastern Pacific Range: Northern limit=10; Southern limit=-4; Western limit=-86; Eastern limit=-78; Latitudinal range=14; Longitudinal range=8.
Egg Type: Pelagic; Pelagic larva.
Feeding Group: Carnivore.
FishBase Habitat: Demersal.
Global Endemism: Tropical Eastern Pacific (TEP) endemic; East Pacific endemic; All species.
Habitat: Estuary; Mud; Soft bottom (mud, sand,gravel, beach, estuary & mangrove); Soft bottom only; Sand & gravel; Freshwater.
Inshore Offshore: Inshore; Inshore Only.
IUCN Red List: Not evaluated / Listed.
Length Max: 15 cm.
Regional Endemism: Continent only; Continent; TEP endemic; Continental TEP endemic; Panamic province endemic; All species.
Residency: Resident.
Salinity: Brackish; Freshwater; Non Marine.
Water Column Position: Bottom; Bottom only;

Scientific source:

Links to other sites

  • 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.
  • Jimenez-Prado, P., Béarez, P., 2004., Peces marinos del Ecuador continental / Marine fishes of continental Ecuador., SIMBIOE/NAZCA/IFEA tomo 1 y 2.
  • 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.
  • 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.
  • Rubio, E.A., 1988., Estudio taxonomico de la ictiofauna acompañante del camaron en areas costeras del Pacifico de Colombia., Memorias del VI Seminario Nacional de las Ciencias del Mar. Comisión Colombiana de Oceanografía. Bogota, Colombia., :169-183.
  • Walker and Bollinger, H. J. & J., 2001., A new species of Trinectes (Pleuronectiformes: Achiridae), with comments on the other Eastern Pacific species of the genus., Revista de Biologia Tropical, 49(Supplement 1):177-186.


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