Comparative field ecology and morphology of two populations of the Troglobitic Catfish Pimelodella Kronei (Siluriformes: Pimelodidae) from Southeastern Brazil

Detalhes bibliográficos
Autor(a) principal: Hoenen, Sônia
Data de Publicação: 1997
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Papéis Avulsos de Zoologia (Online)
Texto Completo: https://www.revistas.usp.br/paz/article/view/211656
Resumo: This study focused on characterizing the Bombas resurgence population oftroglobitic catfishes Pimelodella kronei from ecological and morphological points of view, and on making comparisons with the previously studied population of V. kronei catfishes from Areias cave. Bombas population ended to be more numerous and with a higher density than Areias population. Considering morphological data, Bombas fishes were smaller than Areias fishes in all parameters measured. On the other hand, values of condition factor for Bombas fishes were higher than those for Areias fishes. Thus, although smaller, they were proportionally heavier. The depigmentation rate of Bombas catfishes was more homogeneous than that of Areias catfishes, being Bombas fishes lighter than Areias fishes in average. Considering ecological and behavioural data, there are some autapomorphies for each population and some similarities which could be eithersynapomorphies or convergences. Thus, either the populations evolved from the same ancestral and nowadays there is a large reduction of genetic flow (and they may have even speciated), or the two populations had different origins. Anyway, there are many evidences to consider them as different species, atleast using thephylogenetic species concept, which should be tested.
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spelling Comparative field ecology and morphology of two populations of the Troglobitic Catfish Pimelodella Kronei (Siluriformes: Pimelodidae) from Southeastern BrazilPimelodella kronei, cave fishes, population ecology, Brazilian cavesPimelodella kronei, cave fishes, population ecology, Brazilian cavesThis study focused on characterizing the Bombas resurgence population oftroglobitic catfishes Pimelodella kronei from ecological and morphological points of view, and on making comparisons with the previously studied population of V. kronei catfishes from Areias cave. Bombas population ended to be more numerous and with a higher density than Areias population. Considering morphological data, Bombas fishes were smaller than Areias fishes in all parameters measured. On the other hand, values of condition factor for Bombas fishes were higher than those for Areias fishes. Thus, although smaller, they were proportionally heavier. The depigmentation rate of Bombas catfishes was more homogeneous than that of Areias catfishes, being Bombas fishes lighter than Areias fishes in average. Considering ecological and behavioural data, there are some autapomorphies for each population and some similarities which could be eithersynapomorphies or convergences. Thus, either the populations evolved from the same ancestral and nowadays there is a large reduction of genetic flow (and they may have even speciated), or the two populations had different origins. Anyway, there are many evidences to consider them as different species, atleast using thephylogenetic species concept, which should be tested.Universidade de São Paulo (USP), Museu de Zoologia (MZUSP).1997-02-17info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://www.revistas.usp.br/paz/article/view/21165610.11606/0031-1049.1997.40.p323-335Papéis Avulsos de Zoologia; Vol. 40 (1997); 323-335Papéis Avulsos de Zoologia; Vol. 40 (1997); 323-335Papéis Avulsos de Zoologia; v. 40 (1997); 323-3351807-02050031-1049reponame:Papéis Avulsos de Zoologia (Online)instname:Universidade de São Paulo (USP)instacron:USPenghttps://www.revistas.usp.br/paz/article/view/211656/193885Copyright (c) 1997 Papéis Avulsos de Zoologiahttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessHoenen, Sônia Hoenen, Sônia2024-04-19T18:22:45Zoai:revistas.usp.br:article/211656Revistahttps://www.revistas.usp.br/pazPUBhttps://www.revistas.usp.br/paz/oaipublicacaomz@usp.br ; einicker@usp.br1807-02050031-1049opendoar:2024-04-19T18:22:45Papéis Avulsos de Zoologia (Online) - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv Comparative field ecology and morphology of two populations of the Troglobitic Catfish Pimelodella Kronei (Siluriformes: Pimelodidae) from Southeastern Brazil
title Comparative field ecology and morphology of two populations of the Troglobitic Catfish Pimelodella Kronei (Siluriformes: Pimelodidae) from Southeastern Brazil
spellingShingle Comparative field ecology and morphology of two populations of the Troglobitic Catfish Pimelodella Kronei (Siluriformes: Pimelodidae) from Southeastern Brazil
Hoenen, Sônia
Pimelodella kronei, cave fishes, population ecology, Brazilian caves
Pimelodella kronei, cave fishes, population ecology, Brazilian caves
title_short Comparative field ecology and morphology of two populations of the Troglobitic Catfish Pimelodella Kronei (Siluriformes: Pimelodidae) from Southeastern Brazil
title_full Comparative field ecology and morphology of two populations of the Troglobitic Catfish Pimelodella Kronei (Siluriformes: Pimelodidae) from Southeastern Brazil
title_fullStr Comparative field ecology and morphology of two populations of the Troglobitic Catfish Pimelodella Kronei (Siluriformes: Pimelodidae) from Southeastern Brazil
title_full_unstemmed Comparative field ecology and morphology of two populations of the Troglobitic Catfish Pimelodella Kronei (Siluriformes: Pimelodidae) from Southeastern Brazil
title_sort Comparative field ecology and morphology of two populations of the Troglobitic Catfish Pimelodella Kronei (Siluriformes: Pimelodidae) from Southeastern Brazil
author Hoenen, Sônia
author_facet Hoenen, Sônia
Hoenen, Sônia
author_role author
author2 Hoenen, Sônia
author2_role author
dc.contributor.author.fl_str_mv Hoenen, Sônia
Hoenen, Sônia
dc.subject.por.fl_str_mv Pimelodella kronei, cave fishes, population ecology, Brazilian caves
Pimelodella kronei, cave fishes, population ecology, Brazilian caves
topic Pimelodella kronei, cave fishes, population ecology, Brazilian caves
Pimelodella kronei, cave fishes, population ecology, Brazilian caves
description This study focused on characterizing the Bombas resurgence population oftroglobitic catfishes Pimelodella kronei from ecological and morphological points of view, and on making comparisons with the previously studied population of V. kronei catfishes from Areias cave. Bombas population ended to be more numerous and with a higher density than Areias population. Considering morphological data, Bombas fishes were smaller than Areias fishes in all parameters measured. On the other hand, values of condition factor for Bombas fishes were higher than those for Areias fishes. Thus, although smaller, they were proportionally heavier. The depigmentation rate of Bombas catfishes was more homogeneous than that of Areias catfishes, being Bombas fishes lighter than Areias fishes in average. Considering ecological and behavioural data, there are some autapomorphies for each population and some similarities which could be eithersynapomorphies or convergences. Thus, either the populations evolved from the same ancestral and nowadays there is a large reduction of genetic flow (and they may have even speciated), or the two populations had different origins. Anyway, there are many evidences to consider them as different species, atleast using thephylogenetic species concept, which should be tested.
publishDate 1997
dc.date.none.fl_str_mv 1997-02-17
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://www.revistas.usp.br/paz/article/view/211656
10.11606/0031-1049.1997.40.p323-335
url https://www.revistas.usp.br/paz/article/view/211656
identifier_str_mv 10.11606/0031-1049.1997.40.p323-335
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://www.revistas.usp.br/paz/article/view/211656/193885
dc.rights.driver.fl_str_mv Copyright (c) 1997 Papéis Avulsos de Zoologia
https://creativecommons.org/licenses/by/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 1997 Papéis Avulsos de Zoologia
https://creativecommons.org/licenses/by/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade de São Paulo (USP), Museu de Zoologia (MZUSP).
publisher.none.fl_str_mv Universidade de São Paulo (USP), Museu de Zoologia (MZUSP).
dc.source.none.fl_str_mv Papéis Avulsos de Zoologia; Vol. 40 (1997); 323-335
Papéis Avulsos de Zoologia; Vol. 40 (1997); 323-335
Papéis Avulsos de Zoologia; v. 40 (1997); 323-335
1807-0205
0031-1049
reponame:Papéis Avulsos de Zoologia (Online)
instname:Universidade de São Paulo (USP)
instacron:USP
instname_str Universidade de São Paulo (USP)
instacron_str USP
institution USP
reponame_str Papéis Avulsos de Zoologia (Online)
collection Papéis Avulsos de Zoologia (Online)
repository.name.fl_str_mv Papéis Avulsos de Zoologia (Online) - Universidade de São Paulo (USP)
repository.mail.fl_str_mv publicacaomz@usp.br ; einicker@usp.br
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