Reproductive performance of Macrobrachium acanthurus (Crustacea, Palaemonidae) females subjected to unilateral eyestalk ablation
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1111/azo.12374 http://hdl.handle.net/11449/207352 |
Resumo: | The present study investigated the effects of eyestalk ablation on the reproductive performance of females from the native caridean shrimp Macrobrachium acanthurus. The reproduction parameters fertility, fecundity, egg volume, larvae size, loss of embryos and number of females with viable eggs/larvae were evaluated. Females presenting carapace length of 12–15 mm and spent stage of gonadal development were divided into two groups, one undergoing unilateral eyestalk ablation and the other remaining intact. The specimens were kept in aquarium until ovarian maturation, then brought together with males for mating (proportion of two females for each male). Fecundity and fertility were greater in intact females (1,741 eggs and 1,045 larvae) than in ablated ones (1,373 eggs and 741 larvae). Ablation also reduced the percentage of females with viable eggs (68% intact versus 49% ablated) and larvae (82% intact versus 64% ablated), besides increasing the loss of embryos. Egg volume and shape (ellipsoid) and larvae size were similar, as was the duration of embryonic development. The results of this study suggest that, although ablated females exhibit a high rate of survival, their reproductive performance is reduced; therefore, the ablation technique is not recommended in M. acanthurus farming, so as to protect the animals from physiological stress. |
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Reproductive performance of Macrobrachium acanthurus (Crustacea, Palaemonidae) females subjected to unilateral eyestalk ablationcaptivitycinnamon river shrimpfecundityfertilityspawningThe present study investigated the effects of eyestalk ablation on the reproductive performance of females from the native caridean shrimp Macrobrachium acanthurus. The reproduction parameters fertility, fecundity, egg volume, larvae size, loss of embryos and number of females with viable eggs/larvae were evaluated. Females presenting carapace length of 12–15 mm and spent stage of gonadal development were divided into two groups, one undergoing unilateral eyestalk ablation and the other remaining intact. The specimens were kept in aquarium until ovarian maturation, then brought together with males for mating (proportion of two females for each male). Fecundity and fertility were greater in intact females (1,741 eggs and 1,045 larvae) than in ablated ones (1,373 eggs and 741 larvae). Ablation also reduced the percentage of females with viable eggs (68% intact versus 49% ablated) and larvae (82% intact versus 64% ablated), besides increasing the loss of embryos. Egg volume and shape (ellipsoid) and larvae size were similar, as was the duration of embryonic development. The results of this study suggest that, although ablated females exhibit a high rate of survival, their reproductive performance is reduced; therefore, the ablation technique is not recommended in M. acanthurus farming, so as to protect the animals from physiological stress.Federal Institute of Education Science and Technology of Espírito Santo (IFES) PiúmaLaboratory of Biology and Culture of Crustaceans (LABCRUST) State University of São Paulo (UNESP) – RegistroLaboratorio de Biología de la Reproducción y el Crecimiento de Crustáceos Decápodos Departamento de Biodiversidad y Biología Experimental Facultad de Ciencias Exactas y Naturales CONICET Instituto de Biodiversidad y Biologia Experimental y Aplicada (IBBEA) Universidad de Buenos AiresLaboratory of Biology and Culture of Crustaceans (LABCRUST) State University of São Paulo (UNESP) – RegistroScience and Technology of Espírito Santo (IFES) PiúmaUniversidade Estadual Paulista (Unesp)Universidad de Buenos AiresMaschio Rodrigues, Maria [UNESP]López Greco, Laura S.Almeida, Luis Carlos Ferreira de [UNESP]Bertini, Giovana [UNESP]2021-06-25T10:53:43Z2021-06-25T10:53:43Z2021-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1111/azo.12374Acta Zoologica.1463-63950001-7272http://hdl.handle.net/11449/20735210.1111/azo.123742-s2.0-85101568758Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengActa Zoologicainfo:eu-repo/semantics/openAccess2024-05-03T13:19:56Zoai:repositorio.unesp.br:11449/207352Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T15:31:42.036559Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Reproductive performance of Macrobrachium acanthurus (Crustacea, Palaemonidae) females subjected to unilateral eyestalk ablation |
title |
Reproductive performance of Macrobrachium acanthurus (Crustacea, Palaemonidae) females subjected to unilateral eyestalk ablation |
spellingShingle |
Reproductive performance of Macrobrachium acanthurus (Crustacea, Palaemonidae) females subjected to unilateral eyestalk ablation Maschio Rodrigues, Maria [UNESP] captivity cinnamon river shrimp fecundity fertility spawning |
title_short |
Reproductive performance of Macrobrachium acanthurus (Crustacea, Palaemonidae) females subjected to unilateral eyestalk ablation |
title_full |
Reproductive performance of Macrobrachium acanthurus (Crustacea, Palaemonidae) females subjected to unilateral eyestalk ablation |
title_fullStr |
Reproductive performance of Macrobrachium acanthurus (Crustacea, Palaemonidae) females subjected to unilateral eyestalk ablation |
title_full_unstemmed |
Reproductive performance of Macrobrachium acanthurus (Crustacea, Palaemonidae) females subjected to unilateral eyestalk ablation |
title_sort |
Reproductive performance of Macrobrachium acanthurus (Crustacea, Palaemonidae) females subjected to unilateral eyestalk ablation |
author |
Maschio Rodrigues, Maria [UNESP] |
author_facet |
Maschio Rodrigues, Maria [UNESP] López Greco, Laura S. Almeida, Luis Carlos Ferreira de [UNESP] Bertini, Giovana [UNESP] |
author_role |
author |
author2 |
López Greco, Laura S. Almeida, Luis Carlos Ferreira de [UNESP] Bertini, Giovana [UNESP] |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Science and Technology of Espírito Santo (IFES) Piúma Universidade Estadual Paulista (Unesp) Universidad de Buenos Aires |
dc.contributor.author.fl_str_mv |
Maschio Rodrigues, Maria [UNESP] López Greco, Laura S. Almeida, Luis Carlos Ferreira de [UNESP] Bertini, Giovana [UNESP] |
dc.subject.por.fl_str_mv |
captivity cinnamon river shrimp fecundity fertility spawning |
topic |
captivity cinnamon river shrimp fecundity fertility spawning |
description |
The present study investigated the effects of eyestalk ablation on the reproductive performance of females from the native caridean shrimp Macrobrachium acanthurus. The reproduction parameters fertility, fecundity, egg volume, larvae size, loss of embryos and number of females with viable eggs/larvae were evaluated. Females presenting carapace length of 12–15 mm and spent stage of gonadal development were divided into two groups, one undergoing unilateral eyestalk ablation and the other remaining intact. The specimens were kept in aquarium until ovarian maturation, then brought together with males for mating (proportion of two females for each male). Fecundity and fertility were greater in intact females (1,741 eggs and 1,045 larvae) than in ablated ones (1,373 eggs and 741 larvae). Ablation also reduced the percentage of females with viable eggs (68% intact versus 49% ablated) and larvae (82% intact versus 64% ablated), besides increasing the loss of embryos. Egg volume and shape (ellipsoid) and larvae size were similar, as was the duration of embryonic development. The results of this study suggest that, although ablated females exhibit a high rate of survival, their reproductive performance is reduced; therefore, the ablation technique is not recommended in M. acanthurus farming, so as to protect the animals from physiological stress. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-06-25T10:53:43Z 2021-06-25T10:53:43Z 2021-01-01 |
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/10.1111/azo.12374 Acta Zoologica. 1463-6395 0001-7272 http://hdl.handle.net/11449/207352 10.1111/azo.12374 2-s2.0-85101568758 |
url |
http://dx.doi.org/10.1111/azo.12374 http://hdl.handle.net/11449/207352 |
identifier_str_mv |
Acta Zoologica. 1463-6395 0001-7272 10.1111/azo.12374 2-s2.0-85101568758 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Acta Zoologica |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus 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_ |
1808128526712307712 |