Variation in egg size of the fresh-water prawn Macrobrachium amazonicum (Decapoda: Palaemonidae)

Detalhes bibliográficos
Autor(a) principal: Odinetz Collart, O.
Data de Publicação: 1996
Outros Autores: Rabelo, H.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional do INPA
Texto Completo: https://repositorio.inpa.gov.br/handle/1/16463
Resumo: Egg size of the fresh-water prawn Macrobrachium amazonicum varied among ecologically isolated or geographically distant populations of the Amazon basin. The mean volume of both recently spawned nonpigmented eggs and older pigmented eyed eggs was smaller in prawns from the Tocantins River (0.14 and 0.20 mm3, respectively) than in those from the middle Amazon (0.17 and 0.25 mm3). The largest eggs (0.19 and 0.27 mm3) were displayed by females from the Iquitos and Guapore Rivers. Since the egg volume was independent of female body size, it was attributed to population specific characteristics. The egg size increased with the distance of the sampling site from the ocean, suggesting a progressive divergence of this species from a typical littoral population to an inland form, in a still active fresh-waterization process similar to the pattern evolved among other species in the genus Macrobrachium.
id INPA-2_218dba5a8d62b5c77401f21cc6660d51
oai_identifier_str oai:repositorio:1/16463
network_acronym_str INPA-2
network_name_str Repositório Institucional do INPA
repository_id_str
spelling Odinetz Collart, O.Rabelo, H.2020-06-05T20:01:03Z2020-06-05T20:01:03Z1996https://repositorio.inpa.gov.br/handle/1/1646310.1163/193724096X00775Egg size of the fresh-water prawn Macrobrachium amazonicum varied among ecologically isolated or geographically distant populations of the Amazon basin. The mean volume of both recently spawned nonpigmented eggs and older pigmented eyed eggs was smaller in prawns from the Tocantins River (0.14 and 0.20 mm3, respectively) than in those from the middle Amazon (0.17 and 0.25 mm3). The largest eggs (0.19 and 0.27 mm3) were displayed by females from the Iquitos and Guapore Rivers. Since the egg volume was independent of female body size, it was attributed to population specific characteristics. The egg size increased with the distance of the sampling site from the ocean, suggesting a progressive divergence of this species from a typical littoral population to an inland form, in a still active fresh-waterization process similar to the pattern evolved among other species in the genus Macrobrachium.Volume 16, Número 4, Pags. 684-688Attribution-NonCommercial-NoDerivs 3.0 Brazilhttp://creativecommons.org/licenses/by-nc-nd/3.0/br/info:eu-repo/semantics/openAccessDecapoda (crustacea)MacrobrachiumMacrobrachium AmazonicumMacrobrachium AmazonicumPalaemonidaeVariation in egg size of the fresh-water prawn Macrobrachium amazonicum (Decapoda: Palaemonidae)info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleJournal of Crustacean Biologyengreponame:Repositório Institucional do INPAinstname:Instituto Nacional de Pesquisas da Amazônia (INPA)instacron:INPAORIGINALartigo-inpa.pdfartigo-inpa.pdfapplication/pdf629966https://repositorio.inpa.gov.br/bitstream/1/16463/1/artigo-inpa.pdf72db4692c6133017295a56ebbe375042MD511/164632020-06-05 16:30:14.627oai:repositorio:1/16463Repositório de PublicaçõesPUBhttps://repositorio.inpa.gov.br/oai/requestopendoar:2020-06-05T20:30:14Repositório Institucional do INPA - Instituto Nacional de Pesquisas da Amazônia (INPA)false
dc.title.en.fl_str_mv Variation in egg size of the fresh-water prawn Macrobrachium amazonicum (Decapoda: Palaemonidae)
title Variation in egg size of the fresh-water prawn Macrobrachium amazonicum (Decapoda: Palaemonidae)
spellingShingle Variation in egg size of the fresh-water prawn Macrobrachium amazonicum (Decapoda: Palaemonidae)
Odinetz Collart, O.
Decapoda (crustacea)
Macrobrachium
Macrobrachium Amazonicum
Macrobrachium Amazonicum
Palaemonidae
title_short Variation in egg size of the fresh-water prawn Macrobrachium amazonicum (Decapoda: Palaemonidae)
title_full Variation in egg size of the fresh-water prawn Macrobrachium amazonicum (Decapoda: Palaemonidae)
title_fullStr Variation in egg size of the fresh-water prawn Macrobrachium amazonicum (Decapoda: Palaemonidae)
title_full_unstemmed Variation in egg size of the fresh-water prawn Macrobrachium amazonicum (Decapoda: Palaemonidae)
title_sort Variation in egg size of the fresh-water prawn Macrobrachium amazonicum (Decapoda: Palaemonidae)
author Odinetz Collart, O.
author_facet Odinetz Collart, O.
Rabelo, H.
author_role author
author2 Rabelo, H.
author2_role author
dc.contributor.author.fl_str_mv Odinetz Collart, O.
Rabelo, H.
dc.subject.eng.fl_str_mv Decapoda (crustacea)
Macrobrachium
Macrobrachium Amazonicum
Macrobrachium Amazonicum
Palaemonidae
topic Decapoda (crustacea)
Macrobrachium
Macrobrachium Amazonicum
Macrobrachium Amazonicum
Palaemonidae
description Egg size of the fresh-water prawn Macrobrachium amazonicum varied among ecologically isolated or geographically distant populations of the Amazon basin. The mean volume of both recently spawned nonpigmented eggs and older pigmented eyed eggs was smaller in prawns from the Tocantins River (0.14 and 0.20 mm3, respectively) than in those from the middle Amazon (0.17 and 0.25 mm3). The largest eggs (0.19 and 0.27 mm3) were displayed by females from the Iquitos and Guapore Rivers. Since the egg volume was independent of female body size, it was attributed to population specific characteristics. The egg size increased with the distance of the sampling site from the ocean, suggesting a progressive divergence of this species from a typical littoral population to an inland form, in a still active fresh-waterization process similar to the pattern evolved among other species in the genus Macrobrachium.
publishDate 1996
dc.date.issued.fl_str_mv 1996
dc.date.accessioned.fl_str_mv 2020-06-05T20:01:03Z
dc.date.available.fl_str_mv 2020-06-05T20:01:03Z
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 https://repositorio.inpa.gov.br/handle/1/16463
dc.identifier.doi.none.fl_str_mv 10.1163/193724096X00775
url https://repositorio.inpa.gov.br/handle/1/16463
identifier_str_mv 10.1163/193724096X00775
dc.language.iso.fl_str_mv eng
language eng
dc.relation.ispartof.pt_BR.fl_str_mv Volume 16, Número 4, Pags. 684-688
dc.rights.driver.fl_str_mv Attribution-NonCommercial-NoDerivs 3.0 Brazil
http://creativecommons.org/licenses/by-nc-nd/3.0/br/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution-NonCommercial-NoDerivs 3.0 Brazil
http://creativecommons.org/licenses/by-nc-nd/3.0/br/
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Journal of Crustacean Biology
publisher.none.fl_str_mv Journal of Crustacean Biology
dc.source.none.fl_str_mv reponame:Repositório Institucional do INPA
instname:Instituto Nacional de Pesquisas da Amazônia (INPA)
instacron:INPA
instname_str Instituto Nacional de Pesquisas da Amazônia (INPA)
instacron_str INPA
institution INPA
reponame_str Repositório Institucional do INPA
collection Repositório Institucional do INPA
bitstream.url.fl_str_mv https://repositorio.inpa.gov.br/bitstream/1/16463/1/artigo-inpa.pdf
bitstream.checksum.fl_str_mv 72db4692c6133017295a56ebbe375042
bitstream.checksumAlgorithm.fl_str_mv MD5
repository.name.fl_str_mv Repositório Institucional do INPA - Instituto Nacional de Pesquisas da Amazônia (INPA)
repository.mail.fl_str_mv
_version_ 1809928854614048768