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FishBase Names Scientific source: Integrated Taxonomic Information System Supported by National Biological Information Infrastructure National Science Foundation go to Discover Life's Facebook group Following modified from FishBase    Top | See original http://www.fishbase.org/Summary/speciesSummary.php?genusname=Sternopygus&speciesname=macrurus ---> http://52.67.158.155/Summary/speciesSummary.php?genusname=Sternopygus&speciesname=macrurus http://52.67.158.155/Summary/speciesSummary.php?genusname=Sternopygus&speciesname=macrurus ---> https://fishbase.net.br/Summary/speciesSummary.php?genusname=Sternopygus&speciesname=macrurus https://fishbase.net.br/Summary/speciesSummary.php?genusname=Sternopygus&speciesname=macrurus ---> https://fishbase.net.br/summary/Sternopygus-macrurus.html You can sponsor this page Common name (e.g. trout) contains begins with begins with ends with is Genus + Species (e.g. Gadus morhua) About this page More Info Plus d'info Mais info Languages Arabic Bahasa/Malay Bangla Chinese(Si) Chinese(Tr) Deutsch English Español Farsi Français Greek Hindi Italiano Japanese Lao Nederlands Português(Br) Português(Pt) Russian Swedish Thai Vietnamese User feedbacks Comments &   Corrections Fish Forum Guest Book Facebook Citation Uploads Attach website Upload photo Upload video Upload   references Fish Watcher Related species Species in    Sternopygus Species in    Sternopygidae - Classification - Sternopygidae Gymnotiformes Teleostei Chordata Animalia Sternopygus macrurus ( Bloch & Schneider , 1801 ) Longtail knifefish Upload your photos  and  videos Pictures | Google image Sternopygus macrurus Picture by Galtier Delbosc, M. Classification / Names Common names | Synonyms | Catalog of Fishes( genus , species ) | ITIS | CoL | WoRMS | Cloffa Teleostei (teleosts) > Gymnotiformes (Knifefishes) > Sternopygidae (Glass knifefishes) Etymology: Sternopygus: Greek, sternon = sternon, + Greek, pyge = tail (Ref. 45335 ) . More on authors: Bloch & Schneider . Environment: milieu / climate zone / depth range / distribution range Ecology Freshwater; benthopelagic; pH range: 6.0 - 6.5; dH range: 4 - 15. Tropical; 22°C - 28°C (Ref. 2059 ) Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri South America: Magdalena River basin; entire extent of the Amazon and Orinoco River basins below approximately 500 m elevation including Napo River of western Ecuador and Madre de Dios River of Peru; all drainages of the Guianas Shield; Atlantic drainages of northeastern Brazil (Tocantins, Parnaíba, Pindaré, Itapicuru, and Salgado rivers); São Francisco River basin; Rio de Janeiro, Brazil; Paraguay-Paraná River basin. Length at first maturity / Size / Weight / Age Maturity: L m 25.0 , range 20 - 30 cm Max length : 141 cm TL male/unsexed; (Ref. 39524 ) Short description Morphology | Morphometrics Anal soft rays : 195 - 300 Biology     Glossary (e.g. epibenthic) Occurs in swamps, creeks, and river with lentic waters. Preys on small invertebrates, particularly the larvae of aquatic insects (Ref. 12225 ). Breeds before the start of the rainy season (Ref. 10645 ) or during the rainy season, with a fecundity count of 6473 eggs (Ref. 10643 ). Males persistently defend their territory and apparently make electric signals (by increased electric organ discharge (EOD) rates and interruptions thereof) to females passing by to draw in a spawning partner (Ref. 10605 ). Mature females' EODs are of higher frequencies than mature males (Ref. 10645 ). Plasma androgens modulate the EOD frequency during the breeding season (Ref. 10767 ). Embryos hatch on day 4; larvae begin to feed on day 11. The electric organ and electroreceptors are both present in the larva at the time of first exogenous feeding (Ref. 10605 ). Seems to reach sexual maturity at 1 year of age, based on breeding experiments (Ref. 10011 ). Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae Eggs of 3 mm diameter are deposited among plants. Larvae hatch after 4 days and start feeding after 11 days. Main reference Upload your references | References | Coordinator : Albert, James S. | Collaborators Ortega, H. and R.P. Vari , 1986. Annotated checklist of the freshwater fishes of Peru. Smithson. Contrib. Zool. (437):1-25. (Ref. 6329 ) IUCN Red List Status (Ref. 130435 )   Least Concern (LC)  ; Date assessed: 03 December 2020 CITES Not Evaluated CMS (Ref. 116361 ) Not Evaluated Threat to humans   Harmless Human uses Fisheries: commercial; aquarium: commercial FAO - Publication: search | FishSource | More information Countries FAO areas Ecosystems Occurrences Introductions Stocks Ecology Diet Food items Food consumption Ration Common names Synonyms Metabolism Predators Ecotoxicology Reproduction Maturity Spawning Spawning aggregation Fecundity Eggs Egg development Age/Size Growth Length-weight Length-length Length-frequencies Morphometrics Morphology Larvae Larval dynamics Recruitment Abundance BRUVS References Aquaculture Aquaculture profile Strains Genetics Electrophoreses Heritability Diseases Processing Nutrients Mass conversion Collaborators Pictures Stamps, Coins Misc. Sounds Ciguatera Speed Swim. type Gill area Otoliths Brains Vision Tools E-book | Field guide | Length-frequency wizard | Life-history tool | Point map | Classification Tree | Catch-MSY | Special reports Check for Aquarium maintenance | Check for Species Fact Sheets | Check for Aquaculture Fact Sheets Download XML Summary page | Point data | Common names | Photos Internet sources AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes : genus , species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome , nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go , Search | World Records Freshwater Fishing | Zoological Record Estimates based on models Phylogenetic diversity index (Ref. 82804 ):  PD 50 = 0.5020   [Uniqueness, from 0.5 = low to 2.0 = high]. Bayesian length-weight: a=0.00302 (0.00193 - 0.00471), b=2.82 (2.69 - 2.95), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245 ). Trophic level (Ref. 69278 ):  3.2   ±0.40 se; based on food items. Fishing Vulnerability (Ref. 59153 ):  Very high vulnerability (84 of 100). Price category (Ref. 80766 ):   Unknown . Comments & Corrections Back to Search Random Species Back to Top Accessed through: Not available FishBase mirror site : Laguna, Philippines Page last modified by : mrius-barile Updated: 2024-04-25 09:59:56 gmt FishBase | Search | All Living Things | Top © Designed by The Polistes Corporation