GYMNOTUS CARAPO PDF

Gymnotus carapo Linnaeus, Taxonomic (Download Help) Gymnotus carapo TSN Notes: Reference for: Gymnotus carapo, banded knifefish . The banded knife fish Gymnotus carapo is among the most widely distributed, broadly adapted (eurytopic), and phenotypically variable fish species in South. Download scientific diagram | Geographic variation in Gymnotus carapo. from publication: Seven new species of the Neotropical electric fish Gymnotus (Teleo- .

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Old illustrations uppermost showing shape well, lower typical colors. This allows the fish to survive in polluted or hypoxic oxygen-deficient environments, and gymnktus comes in useful when waters recede at the end of the wet season if the fish becomes stranded, for example. Email this article Login required.

It breeds during the wet season and is a paternal mouthbrooder with the male also building a nest, in which he broods and protects the eggs and fry. With these, the fish can sense the tiniest of movements as the field around it is disturbed, and navigate in total darkness, useful skills when hunting prey or avoiding predators in the dark. Abstract The banded knife fish Gymnotus carapo is among the most widely distributed, broadly adapted eurytopicand phenotypically variable fish species in South America, with a geographic range of bymnotus 14 million km 2from the Llanos of Venezuela to the Pampas of northern Argentina.

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Parental care is provided by the male. A review found that these were insufficient for recognizing the populations as separate species, but did recommend recognizing them as subspecies: Revision of the polytypic electric fish Gymnotus carapo Gymnotiformes, Teleosteiwith descriptions of seven subspecies.

These results support the use of the subspecies, but not the species, rank to recognize and name these regionally delimited taxonomic entities. Cara;o live and frozen foods such as bloodwormprawns, earthworms, tubifex etc.

Ctenobrycon and Curimata and plant gymnots Ref. Feeds mainly at night on worms, insects e. A very widespread species in both Central and South America.

Gymnotus carapo, Banded knifefish : aquarium

Add your observation in Fish Watcher Native range All suitable habitat This map was computer-generated and has not yet been reviewed.

Here gymnotis assess the structure of phenotypic variation in G. Like other Gymnotids, it produces a weak electric field using specially-adapted muscle tissue located towards the tail. However, it is not known from deep river channels. The strength and details of this pattern varies, both individually and depending on region.

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Our results demonstrate gymnotuus, but not diagnostic, differences gymnogus specimens representing seven new subspecies: This page was last edited on 13 Julyat The genus Cara;o has undergone considerable taxonomic revision in recent years, with over 20 new species being described sinceincluding several that were originally considered to be G.

Mouth brooding by males is observed in this species Ref. Also responds to vibratory stimuli water waves: This map was computer-generated and has not yet been reviewed. Sign our Guest Book. The banded knifefish Gymnotus carapo ggymnotus a species of gymniform knifefish native to a wide range of freshwater habitats in South America.

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User Username Password Remember me. Large stones and pieces of bogwoodtwisted roots, and live plants all look good. Uses its long anal fin for locomotion. You can sponsor this page. Gymnotus carapo Linnaeus Main reference Upload your references References Coordinator: Sounds Ciguatera Speed Swim.

Gymnotidae Weakly electric fish Fish described in It also has a modified swimbladder that acts as an accessory breathing organ. The banded knife fish Gymnotus carapo is among the most widely distributed, broadly adapted eurytopicand phenotypically variable fish species in South America, with a geographic range of about 14 million km 2cagapo the Llanos of Venezuela to the Pampas of northern Argentina. There are also some morphometric variations depending on location.

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We use multivariate statistics to quantify phenotypic differences within and among subspecies and species in aspects of pigmentation, caliper-based morphometrics, geometric morphometrics, meristics, and osteology. Proceedings of the Biological Society of Washington.