Cyphomyrus psittacus (Boulenger 1897)

Onglets principaux

EOL Text

Max. size:

30.0 cm TL (male/unsexed; (Ref. 3799)); max. published weight: 190 g (Ref. 3799)

Licensehttp://creativecommons.org/licenses/by-nc/3.0/
Rights holder/AuthorTess Cruz, FishBase
Sourcehttp://www.fishbase.org/summary/SpeciesSummary.php?id=5088

Size:

to 210 mm TL.

Licensehttp://creativecommons.org/licenses/by-nc-sa/3.0/
Rights holder/AuthorSullivan, John P., Sullivan, John P., Africhthy
Sourcehttp://mormyrids.lifedesks.org/pages/2085

Dorsal fin origin before anal fin origin; length of dorsal base to anal base ratio 1.2-1.6. Back convex and hull shaped. LS/Depth ratio 2.9-3.8. Height of caudal peduncle 2.9-4.4 x of its length. The form of the back and the position of the dorsal and anal fins clearly distinguishes this species from others in the same geographic zone.

Licensehttp://creativecommons.org/licenses/by-nc/3.0/
Rights holder/AuthorMaria Lourdes D. Palomares, FishBase
Sourcehttp://www.fishbase.org/summary/SpeciesSummary.php?id=5088

Habitat and Ecology:

Habitat and Ecology

Cypomyrus psittacus is a demersal species. It possesses electroreceptors over the entire head, on the ventral region (except abdominal area) and the dorsal region of the body, but absent from the side and the caudal peduncle where the electric organ is located (Mller 1995). It is found in large rivers. Edible fish (Poll 1967).

Systems

  • Freshwater
Licensehttp://creativecommons.org/licenses/by-nc-sa/3.0/
Rights holder/AuthorInternational Union for Conservation of Nature and Natural Resources
Sourcehttp://www.iucnredlist.org/apps/redlist/details/167951

Environment:

demersal; freshwater; pH range: 6.8 - 7.2; dH range: 8

Licensehttp://creativecommons.org/licenses/by-nc/3.0/
Rights holder/AuthorTess Cruz, FishBase
Sourcehttp://www.fishbase.org/summary/SpeciesSummary.php?id=5088

Electric Organ Discharge:

The EOD waveform of C. psittacus is short in duration and characterized by four phases: a head-negative P0, followed by a positive phase and a negative phase that together take up about 1/10 of a millesecond, follwed by an "overshoot" fourth phase nearly equal in amplitude to the P0. Total duration is less than 3/10 of a millisecond.

Licensehttp://creativecommons.org/licenses/by-nc-sa/3.0/
Rights holder/AuthorSullivan, John P., Sullivan, John P., Africhthy
Sourcehttp://mormyrids.lifedesks.org/pages/2085

Statistics of barcoding coverage: Cyphomyrus psittacus:

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 2
Specimens with Barcodes: 2
Species With Barcodes: 1

Licensehttp://creativecommons.org/licenses/by/3.0/
Rights holder/AuthorSujeevan Ratnasingham, Paul D.N. Hebert, Barcode of Life Data Systems (BOLD)
Sourcehttp://www.boldsystems.org/index.php/Taxbrowser_Taxonpage?taxid=460443

IUCN Red List Assessment:
Red List Category

LC
Least Concern

Red List Criteria

Version

3.1

Year Assessed

2010

Assessor/s

Moelants, T.

Reviewer/s

Snoeks, J., Tweddle, D., Getahun, A., Laly, P., Paugy, D., Zaiss, R., Fishar, M.R.A & Brooks, E.

Contributor/s

Justification

This species has a wide distribution, with no known major widespread threats. It is therefore listed as Least Concern. It has also been assessed regionally as Least Concern for central and western Africa.
Licensehttp://creativecommons.org/licenses/by-nc-sa/3.0/
Rights holder/AuthorInternational Union for Conservation of Nature and Natural Resources
Sourcehttp://www.iucnredlist.org/apps/redlist/details/167951

Biology:

Possesses electroreceptors over the entire head, on the ventral region (except abdominal area) and the dorsal region of the body, but absent from the side and the caudal peduncle where the electric organ is located (Ref. 10011). Found in large rivers. Edible fish (Ref. 11970).

Licensehttp://creativecommons.org/licenses/by-nc/3.0/
Rights holder/AuthorTess Cruz, FishBase
Sourcehttp://www.fishbase.org/summary/SpeciesSummary.php?id=5088

Population:

Population

No information available.

Population Trend

Unknown
Licensehttp://creativecommons.org/licenses/by-nc-sa/3.0/
Rights holder/AuthorInternational Union for Conservation of Nature and Natural Resources
Sourcehttp://www.iucnredlist.org/apps/redlist/details/167951
Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith