Rediscovery of Crenicichla yaha (Teleostei: Cichlidae)

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F17%3A43895855" target="_blank" >RIV/60076658:12310/17:43895855 - isvavai.cz</a>

Výsledek na webu

<a href="https://media.hotelwebservice.com/media/pecescriollos/docs/icp_50_-_rican_et_al_2017_rediscovery_of_crenicichla_yaha.pdf" target="_blank" >https://media.hotelwebservice.com/media/pecescriollos/docs/icp_50_-_rican_et_al_2017_rediscovery_of_crenicichla_yaha.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Rediscovery of Crenicichla yaha (Teleostei: Cichlidae)

Popis výsledku v původním jazyce

Crenicichla yaha was described from the Urugua-i river (arroyo Urugua-i; and erroneously on one specimen from the Rio Iguazú) in Misiones, Argentina. The species was only known from nine specimens collected in 1986 during an environmental impact study prior to the construction of the Urugua-i hydroelectric dam in 1989. The species has not been collected since and is absent from the artificial lake where ecological conditions have been severely altered and where the diversity and biomass of non-native species are on the increase. We report here the rediscovery of Crenicichla yaha in the Urugua-i basin based on nine specimens collected in December 2016 at two localities outside the influence of the artificial lake. The species is distinct (especially in live coloration) from Crenicichla tesay which was previously treated as conspecific with it or confused with it. Crenicichla yaha is endemic to the Urugua-i river basin, while Crenicichla tesay is endemic to the Iguazú river basin. The original description of Crenicichla yaha was based on long preserved specimens lacking most coloration patterns. We expand the description and diagnosis of the species with the now known coloration patterns based on live specimens including breeding coloration and rediagnose the species by comparisons with the remaining closely related species of the C. mandelburgeri species group which were not known at the time of the original description of C. yaha.

Název v anglickém jazyce

Rediscovery of Crenicichla yaha (Teleostei: Cichlidae)

Popis výsledku anglicky

Crenicichla yaha was described from the Urugua-i river (arroyo Urugua-i; and erroneously on one specimen from the Rio Iguazú) in Misiones, Argentina. The species was only known from nine specimens collected in 1986 during an environmental impact study prior to the construction of the Urugua-i hydroelectric dam in 1989. The species has not been collected since and is absent from the artificial lake where ecological conditions have been severely altered and where the diversity and biomass of non-native species are on the increase. We report here the rediscovery of Crenicichla yaha in the Urugua-i basin based on nine specimens collected in December 2016 at two localities outside the influence of the artificial lake. The species is distinct (especially in live coloration) from Crenicichla tesay which was previously treated as conspecific with it or confused with it. Crenicichla yaha is endemic to the Urugua-i river basin, while Crenicichla tesay is endemic to the Iguazú river basin. The original description of Crenicichla yaha was based on long preserved specimens lacking most coloration patterns. We expand the description and diagnosis of the species with the now known coloration patterns based on live specimens including breeding coloration and rediagnose the species by comparisons with the remaining closely related species of the C. mandelburgeri species group which were not known at the time of the original description of C. yaha.

Druh

J_ost - Ostatní články v recenzovaných periodicích

CEP obor

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OECD FORD obor

10613 - Zoology

Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Ichthyological Contributions of PecesCriollos

ISSN

1868-3703

e-ISSN

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Svazek periodika

50

Číslo periodika v rámci svazku

2017

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

8

Strana od-do

1-8

Kód UT WoS článku

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EID výsledku v databázi Scopus

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