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Detalhes bibliográficos
Autor(a) principal: Slonski, Gladis T.
Data de Publicação: 1998
Outros Autores: Toni, Daniela C. de, Hofmann, Paulo R. P.
Tipo de documento: Artigo
Idioma: por
Título da fonte: Biotemas (Online)
Texto Completo: https://periodicos.ufsc.br/index.php/biotemas/article/view/21933
Resumo: This work seeks to contribute to a better knowledge on populational dynamics and to the understanding of intraspecific competition effects in Biomphalaria tenagophila by testing the law of constant final yield for this species. Five aquaria with different densities (8, 16, 32, 64 and 128 individuals) were observed for 110 days. The total numbers of eggs, egg masses and viable eggs were counted weekly, and the number of undeveloped eggs was counted every 15 days. At the end of the experiment the values of moist weight, dry weight and diameter were measured. The analysis of density variance showed statistically-significant differences between the parameters related to organic matter absorption. This indicates that the above-mentioned law cannot be used to explain the absorption of organic matter in the samples of B. tenagophila studied.
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spelling .Effects of the law of constant final yield in populations of Biomphalaria tenagophila (Mollusca, Planorbidae)This work seeks to contribute to a better knowledge on populational dynamics and to the understanding of intraspecific competition effects in Biomphalaria tenagophila by testing the law of constant final yield for this species. Five aquaria with different densities (8, 16, 32, 64 and 128 individuals) were observed for 110 days. The total numbers of eggs, egg masses and viable eggs were counted weekly, and the number of undeveloped eggs was counted every 15 days. At the end of the experiment the values of moist weight, dry weight and diameter were measured. The analysis of density variance showed statistically-significant differences between the parameters related to organic matter absorption. This indicates that the above-mentioned law cannot be used to explain the absorption of organic matter in the samples of B. tenagophila studied.Este trabalho visou ampliar as informações sobre a dinâmica populacional e contribuir para a compreensão dos efeitos da competição intraespecífica de Biomphalaria tenagophila, testando a Lei de Produção Final Constante para esta espécie. Para tanto, foram acompanhados durante 110 dias cinco aquários com densidades diferentes (8, 16, 32, 64 e 128 indivíduos). Foram contabilizados semanalmente o total de ovos, número de desovas, ovos viáveis e, a cada 15 dias, o número de ovos não eclodidos. Ao final do experimento, foram obtidos os valores do peso úmido, peso seco e diâmetro. Através da análise de variância da densidade, relacionada aos parâmetros relativos à absorção de matéria orgânica, foram encontradas diferenças estatisticamente sifnificantes, o que indica que a referida lei não pode ser aplicada para explicar a absorção de matéria orgânica em B. tenagophila nas amostras estudadas.Universidade Federal de Santa Catarina1998-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufsc.br/index.php/biotemas/article/view/21933Biotemas; v. 11 n. 1 (1998); 93-1042175-79250103-1643reponame:Biotemas (Online)instname:Universidade Federal de Santa Catarina (UFSC)instacron:UFSCporhttps://periodicos.ufsc.br/index.php/biotemas/article/view/21933/19894Copyright (c) 1998 Gladis T. Slonski, Daniela C. de Toni, Paulo R. P. Hofmannhttp://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessSlonski, Gladis T.Toni, Daniela C. deHofmann, Paulo R. P.2022-11-18T13:11:25Zoai:periodicos.ufsc.br:article/21933Revistahttp://www.biotemas.ufsc.br/index.htmPUBhttps://periodicos.ufsc.br/index.php/biotemas/oai||carlospinto@ccb.ufsc.br2175-79250103-1643opendoar:2022-11-18T13:11:25Biotemas (Online) - Universidade Federal de Santa Catarina (UFSC)false
dc.title.none.fl_str_mv .
Effects of the law of constant final yield in populations of Biomphalaria tenagophila (Mollusca, Planorbidae)
title .
spellingShingle .
Slonski, Gladis T.
title_short .
title_full .
title_fullStr .
title_full_unstemmed .
title_sort .
author Slonski, Gladis T.
author_facet Slonski, Gladis T.
Toni, Daniela C. de
Hofmann, Paulo R. P.
author_role author
author2 Toni, Daniela C. de
Hofmann, Paulo R. P.
author2_role author
author
dc.contributor.author.fl_str_mv Slonski, Gladis T.
Toni, Daniela C. de
Hofmann, Paulo R. P.
description This work seeks to contribute to a better knowledge on populational dynamics and to the understanding of intraspecific competition effects in Biomphalaria tenagophila by testing the law of constant final yield for this species. Five aquaria with different densities (8, 16, 32, 64 and 128 individuals) were observed for 110 days. The total numbers of eggs, egg masses and viable eggs were counted weekly, and the number of undeveloped eggs was counted every 15 days. At the end of the experiment the values of moist weight, dry weight and diameter were measured. The analysis of density variance showed statistically-significant differences between the parameters related to organic matter absorption. This indicates that the above-mentioned law cannot be used to explain the absorption of organic matter in the samples of B. tenagophila studied.
publishDate 1998
dc.date.none.fl_str_mv 1998-01-01
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://periodicos.ufsc.br/index.php/biotemas/article/view/21933
url https://periodicos.ufsc.br/index.php/biotemas/article/view/21933
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://periodicos.ufsc.br/index.php/biotemas/article/view/21933/19894
dc.rights.driver.fl_str_mv Copyright (c) 1998 Gladis T. Slonski, Daniela C. de Toni, Paulo R. P. Hofmann
http://creativecommons.org/licenses/by/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 1998 Gladis T. Slonski, Daniela C. de Toni, Paulo R. P. Hofmann
http://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 Federal de Santa Catarina
publisher.none.fl_str_mv Universidade Federal de Santa Catarina
dc.source.none.fl_str_mv Biotemas; v. 11 n. 1 (1998); 93-104
2175-7925
0103-1643
reponame:Biotemas (Online)
instname:Universidade Federal de Santa Catarina (UFSC)
instacron:UFSC
instname_str Universidade Federal de Santa Catarina (UFSC)
instacron_str UFSC
institution UFSC
reponame_str Biotemas (Online)
collection Biotemas (Online)
repository.name.fl_str_mv Biotemas (Online) - Universidade Federal de Santa Catarina (UFSC)
repository.mail.fl_str_mv ||carlospinto@ccb.ufsc.br
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