Biologia populacional de Pareiorhina rudolphi (Loricariidae, Hypostominae) na microbacia do Ribeirão Grande, serra da Mantiqueira oriental, Estado de São Paulo
Main Author: | |
---|---|
Publication Date: | 2009 |
Other Authors: | , |
Format: | Article |
Language: | por |
Source: | Repositório Institucional da UNESP |
Download full: | http://dx.doi.org/10.4025/actascibiolsci.v31i1.459 http://hdl.handle.net/11449/42700 |
Summary: | Pareiorhina rudolphi was sampled in streams of the Ribeirao Grande system, eastern Serra da Mantiqueira (22[degree]47[minute]08[second]S, 45[degree]28[minute]17[second] W). Samplings were carried out using an electrofishing device, during the months of July/2001, October/2001, February/2002 and April/2002. Sex-ratio diverged significantly from the expected 1: 1 ratio([chi]2 = 6.53; p < 0.05), standing at 1.6:1 (female: male). The spawning period for Pareiorhina rudolphi lasts from spring to summer, with, the highest observed, in October and February by the gonadosomantic index and the relative condition factor coincided with the spawning period. The length at sexual maturity of P. rudolphi is about 4.45 cm for both sexes. The absolute fecundity was low, and ranged from 4 to 11 oocytes. The periphyton was used as a direct food source by the species, which remain attached to the substrate with their large circular lips, and use their conspicuous Slightly Yellowish teeth to graze the periphyton. The growth parameters, natural mortality rate and survival rate for P, rudolphi were respectively: K = 0.35 year-1, L[infinity] = 7.2 cm, tmax = 8.6 years, M = 1.1 year-1, S = 33%. The characteristics presented by P. rudolphi occur in the environment function of a population adjustment, and not of species abundance. |
id |
UNSP_e758333140e824d1f2407346c76795f1 |
---|---|
oai_identifier_str |
oai:repositorio.unesp.br:11449/42700 |
network_acronym_str |
UNSP |
network_name_str |
Repositório Institucional da UNESP |
repository_id_str |
2946 |
spelling |
Biologia populacional de Pareiorhina rudolphi (Loricariidae, Hypostominae) na microbacia do Ribeirão Grande, serra da Mantiqueira oriental, Estado de São PauloPopulation biology of Pareiorhina rudolphi (Loricariidae, Hypostominae) in the Ribeirao Grande system, eastern serra da Mantiqueira, São Paulo State.Pareiorhina rudolphi was sampled in streams of the Ribeirao Grande system, eastern Serra da Mantiqueira (22[degree]47[minute]08[second]S, 45[degree]28[minute]17[second] W). Samplings were carried out using an electrofishing device, during the months of July/2001, October/2001, February/2002 and April/2002. Sex-ratio diverged significantly from the expected 1: 1 ratio([chi]2 = 6.53; p < 0.05), standing at 1.6:1 (female: male). The spawning period for Pareiorhina rudolphi lasts from spring to summer, with, the highest observed, in October and February by the gonadosomantic index and the relative condition factor coincided with the spawning period. The length at sexual maturity of P. rudolphi is about 4.45 cm for both sexes. The absolute fecundity was low, and ranged from 4 to 11 oocytes. The periphyton was used as a direct food source by the species, which remain attached to the substrate with their large circular lips, and use their conspicuous Slightly Yellowish teeth to graze the periphyton. The growth parameters, natural mortality rate and survival rate for P, rudolphi were respectively: K = 0.35 year-1, L[infinity] = 7.2 cm, tmax = 8.6 years, M = 1.1 year-1, S = 33%. The characteristics presented by P. rudolphi occur in the environment function of a population adjustment, and not of species abundance.Univ Estadual Paulista, Dept Zool, Av 24-A 1515, BR-13506900 São PauloUniv Estadual Paulista, Dept Zool, Av 24-A 1515, BR-13506900 São PauloUniversidade Estadual Paulista (Unesp)Braga, Francisco Manoel de Souza [UNESP]Gomiero, Leandro MullerSouza, Ursulla Pereira2014-05-20T15:34:55Z2014-05-20T15:34:55Z2009-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article79-88application/pdfhttp://dx.doi.org/10.4025/actascibiolsci.v31i1.459Acta Scientiarum Biological Sciences. , v. 31, n. 1, p. 79-88, 2009.1679-9283http://hdl.handle.net/11449/4270010.4025/actascibiolsci.v31i1.459ZOOREC:ZOOR14512074790ZOORECZOOR14512074790.pdf2425382266290470Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporActa Scientiarum: Biological Sciences0,208info:eu-repo/semantics/openAccess2023-10-26T06:06:36Zoai:repositorio.unesp.br:11449/42700Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-10-26T06:06:36Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Biologia populacional de Pareiorhina rudolphi (Loricariidae, Hypostominae) na microbacia do Ribeirão Grande, serra da Mantiqueira oriental, Estado de São Paulo Population biology of Pareiorhina rudolphi (Loricariidae, Hypostominae) in the Ribeirao Grande system, eastern serra da Mantiqueira, São Paulo State. |
title |
Biologia populacional de Pareiorhina rudolphi (Loricariidae, Hypostominae) na microbacia do Ribeirão Grande, serra da Mantiqueira oriental, Estado de São Paulo |
spellingShingle |
Biologia populacional de Pareiorhina rudolphi (Loricariidae, Hypostominae) na microbacia do Ribeirão Grande, serra da Mantiqueira oriental, Estado de São Paulo Braga, Francisco Manoel de Souza [UNESP] |
title_short |
Biologia populacional de Pareiorhina rudolphi (Loricariidae, Hypostominae) na microbacia do Ribeirão Grande, serra da Mantiqueira oriental, Estado de São Paulo |
title_full |
Biologia populacional de Pareiorhina rudolphi (Loricariidae, Hypostominae) na microbacia do Ribeirão Grande, serra da Mantiqueira oriental, Estado de São Paulo |
title_fullStr |
Biologia populacional de Pareiorhina rudolphi (Loricariidae, Hypostominae) na microbacia do Ribeirão Grande, serra da Mantiqueira oriental, Estado de São Paulo |
title_full_unstemmed |
Biologia populacional de Pareiorhina rudolphi (Loricariidae, Hypostominae) na microbacia do Ribeirão Grande, serra da Mantiqueira oriental, Estado de São Paulo |
title_sort |
Biologia populacional de Pareiorhina rudolphi (Loricariidae, Hypostominae) na microbacia do Ribeirão Grande, serra da Mantiqueira oriental, Estado de São Paulo |
author |
Braga, Francisco Manoel de Souza [UNESP] |
author_facet |
Braga, Francisco Manoel de Souza [UNESP] Gomiero, Leandro Muller Souza, Ursulla Pereira |
author_role |
author |
author2 |
Gomiero, Leandro Muller Souza, Ursulla Pereira |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Braga, Francisco Manoel de Souza [UNESP] Gomiero, Leandro Muller Souza, Ursulla Pereira |
description |
Pareiorhina rudolphi was sampled in streams of the Ribeirao Grande system, eastern Serra da Mantiqueira (22[degree]47[minute]08[second]S, 45[degree]28[minute]17[second] W). Samplings were carried out using an electrofishing device, during the months of July/2001, October/2001, February/2002 and April/2002. Sex-ratio diverged significantly from the expected 1: 1 ratio([chi]2 = 6.53; p < 0.05), standing at 1.6:1 (female: male). The spawning period for Pareiorhina rudolphi lasts from spring to summer, with, the highest observed, in October and February by the gonadosomantic index and the relative condition factor coincided with the spawning period. The length at sexual maturity of P. rudolphi is about 4.45 cm for both sexes. The absolute fecundity was low, and ranged from 4 to 11 oocytes. The periphyton was used as a direct food source by the species, which remain attached to the substrate with their large circular lips, and use their conspicuous Slightly Yellowish teeth to graze the periphyton. The growth parameters, natural mortality rate and survival rate for P, rudolphi were respectively: K = 0.35 year-1, L[infinity] = 7.2 cm, tmax = 8.6 years, M = 1.1 year-1, S = 33%. The characteristics presented by P. rudolphi occur in the environment function of a population adjustment, and not of species abundance. |
publishDate |
2009 |
dc.date.none.fl_str_mv |
2009-01-01 2014-05-20T15:34:55Z 2014-05-20T15:34:55Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.4025/actascibiolsci.v31i1.459 Acta Scientiarum Biological Sciences. , v. 31, n. 1, p. 79-88, 2009. 1679-9283 http://hdl.handle.net/11449/42700 10.4025/actascibiolsci.v31i1.459 ZOOREC:ZOOR14512074790 ZOORECZOOR14512074790.pdf 2425382266290470 |
url |
http://dx.doi.org/10.4025/actascibiolsci.v31i1.459 http://hdl.handle.net/11449/42700 |
identifier_str_mv |
Acta Scientiarum Biological Sciences. , v. 31, n. 1, p. 79-88, 2009. 1679-9283 10.4025/actascibiolsci.v31i1.459 ZOOREC:ZOOR14512074790 ZOORECZOOR14512074790.pdf 2425382266290470 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
Acta Scientiarum: Biological Sciences 0,208 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
79-88 application/pdf |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1797789514375102464 |