Serrasalmus gouldingi
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| Serrasalmus gouldingi | ||||||||||||
| Fink and Machado-Allison , 1992 |
Serrasalmus gouldingi (English Goulding's Piranha, also Blue Tiger Piranha because of its color) is aspecies of saw tetrathat was first described in1992and isnative totropical South America. It is also called Piranha Fula or Caribe Negro.
description
The fish are high-backed and have a rhomboid body shape. They belong to the larger Serrasalmus species and can reach a body length of up to 27.9 centimeters SL . There are vertically elongated spots on the silver-colored, shiny metallic blue sides of the body. A clear shoulder mark is missing, but some specimens show increased pigmentation in this region. The head with large eyes is robust, the mouth moderately large, the snub-nosed snout pronounced. A dark stripe runs vertically through the pupils over the eyes . The ectopterygoid has a few (1 to 3) teeth. A preanal sting ray is present. There is a black band on the caudal fin (proximal) towards the body. The dorsal fin (dorsal) is supported from 13 to 17, the anal fin (anal) from 29 to 33 soft rays. The species has 36 to 38 vertebrae. The scales are small and numerous, the number along the sideline is usually 95 (93 to 97). Before the beginning of the pelvic fins there are 24 to 25 and after the beginning of the pelvic fins 8 to 10 abdominal teeth ( serrae ). The 25 (23 to 27) gill spines are short and broad at the base.
Distribution ad habitat
Serrasalmus gouldingi occurs in Brazil , Ecuador , Colombia and Venezuela in the Amazon and Orinoco river basins. The species is a typical inhabitant of black water rivers and stagnant waters.
Way of life
Very little is known about the way of life of Serrasalmus gouldingi . An investigation in the area of the Rio Anapu showed that the species there is an omnivore , with a tendency to become a fish eater (piscivore). Another, larger part of the diet are fruits and seeds.
literature
- Antonio Machado-Allison, William Fink: Los Peces Caribes de Venezuela, Diagnosis, Claves, Aspectos Ecologicos y Evolutivos , 1996, Universidad Central de Venezuela, CDCH
Individual evidence
- ↑ a b c d Serrasalmus gouldingi on Fishbase.org (English)
- ↑ a b c Machado-Allison and Fink, p. 75.
- ↑ Serrasalmus gouldingi in the Catalog of Fishes (English)
- ↑ a b Bruno da S. Prudente et al. : Feeding ecology of Serrasalmus gouldingi (Characiformes: Serrasalmidae) in the lower Anapu River region, Eastern Amazon, Brazi. In: Acta Amazonica 46 (3), 2016, pp. 259-270. ( Online )
Web links
- Serrasalmus gouldingi on Fishbase.org (English)