Comparative field ecology and morphology of two populations of the Troglobitic Catfish Pimelodella Kronei (Siluriformes: Pimelodidae) from Southeastern Brazil
Autor(a) principal: | |
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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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Papéis Avulsos de Zoologia (Online) |
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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 |
_version_ |
1797051525821890560 |