Quality of pejerrey (Odontesthes bonariensis) eggs and larvae in captivity throughout spawning season
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Neotropical ichthyology (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252014000300629 |
Resumo: | The aim of this work was to assess the quality of pejerrey eggs and larvae throughout its spawning season. Fertilized eggs were taken on September, October, November, and December from a captive broodstock. The egg diameter, yolk diameter, and oil droplets area decreased along the spawning season, with higher values in September. Fertilization and hatching rates decreased throughout this period, with highest values in September (88.0%; 55.2%) and the lowest values on December (43.0%; 25.2%). The larvae hatched from eggs obtained on October were the heaviest and longest (1.57 mg; 8.24 mm). The survival rate at 30 days post hatching (dph) was similar in larvae from September and October eggs (66.1%; 62.9%) with a sharp decrease in larvae from November and December eggs (22.4%; 23.3%). Furthermore, the highest body weight (15.1 mg) and total length (15.25 mm) at 30 dph were obtained in larvae from October eggs. The results obtained showed that overall eggs quality was better at the beginning of the spawning period, influencing the larvae performance. |
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Quality of pejerrey (Odontesthes bonariensis) eggs and larvae in captivity throughout spawning seasonAquacultureEggs and larvae qualityPejerreyReproductive seasonThe aim of this work was to assess the quality of pejerrey eggs and larvae throughout its spawning season. Fertilized eggs were taken on September, October, November, and December from a captive broodstock. The egg diameter, yolk diameter, and oil droplets area decreased along the spawning season, with higher values in September. Fertilization and hatching rates decreased throughout this period, with highest values in September (88.0%; 55.2%) and the lowest values on December (43.0%; 25.2%). The larvae hatched from eggs obtained on October were the heaviest and longest (1.57 mg; 8.24 mm). The survival rate at 30 days post hatching (dph) was similar in larvae from September and October eggs (66.1%; 62.9%) with a sharp decrease in larvae from November and December eggs (22.4%; 23.3%). Furthermore, the highest body weight (15.1 mg) and total length (15.25 mm) at 30 dph were obtained in larvae from October eggs. The results obtained showed that overall eggs quality was better at the beginning of the spawning period, influencing the larvae performance.Sociedade Brasileira de Ictiologia2014-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252014000300629Neotropical Ichthyology v.12 n.3 2014reponame:Neotropical ichthyology (Online)instname:Sociedade Brasileira de Ictiologia (SBI)instacron:SBI10.1590/1982-0224-20130146info:eu-repo/semantics/openAccessChalde,TomásElisio,MarianoMiranda,Leandro A.eng2015-09-17T00:00:00Zoai:scielo:S1679-62252014000300629Revistahttp://www.ufrgs.br/ni/https://old.scielo.br/oai/scielo-oai.php||neoichth@nupelia.uem.br1982-02241679-6225opendoar:2015-09-17T00:00Neotropical ichthyology (Online) - Sociedade Brasileira de Ictiologia (SBI)false |
dc.title.none.fl_str_mv |
Quality of pejerrey (Odontesthes bonariensis) eggs and larvae in captivity throughout spawning season |
title |
Quality of pejerrey (Odontesthes bonariensis) eggs and larvae in captivity throughout spawning season |
spellingShingle |
Quality of pejerrey (Odontesthes bonariensis) eggs and larvae in captivity throughout spawning season Chalde,Tomás Aquaculture Eggs and larvae quality Pejerrey Reproductive season |
title_short |
Quality of pejerrey (Odontesthes bonariensis) eggs and larvae in captivity throughout spawning season |
title_full |
Quality of pejerrey (Odontesthes bonariensis) eggs and larvae in captivity throughout spawning season |
title_fullStr |
Quality of pejerrey (Odontesthes bonariensis) eggs and larvae in captivity throughout spawning season |
title_full_unstemmed |
Quality of pejerrey (Odontesthes bonariensis) eggs and larvae in captivity throughout spawning season |
title_sort |
Quality of pejerrey (Odontesthes bonariensis) eggs and larvae in captivity throughout spawning season |
author |
Chalde,Tomás |
author_facet |
Chalde,Tomás Elisio,Mariano Miranda,Leandro A. |
author_role |
author |
author2 |
Elisio,Mariano Miranda,Leandro A. |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Chalde,Tomás Elisio,Mariano Miranda,Leandro A. |
dc.subject.por.fl_str_mv |
Aquaculture Eggs and larvae quality Pejerrey Reproductive season |
topic |
Aquaculture Eggs and larvae quality Pejerrey Reproductive season |
description |
The aim of this work was to assess the quality of pejerrey eggs and larvae throughout its spawning season. Fertilized eggs were taken on September, October, November, and December from a captive broodstock. The egg diameter, yolk diameter, and oil droplets area decreased along the spawning season, with higher values in September. Fertilization and hatching rates decreased throughout this period, with highest values in September (88.0%; 55.2%) and the lowest values on December (43.0%; 25.2%). The larvae hatched from eggs obtained on October were the heaviest and longest (1.57 mg; 8.24 mm). The survival rate at 30 days post hatching (dph) was similar in larvae from September and October eggs (66.1%; 62.9%) with a sharp decrease in larvae from November and December eggs (22.4%; 23.3%). Furthermore, the highest body weight (15.1 mg) and total length (15.25 mm) at 30 dph were obtained in larvae from October eggs. The results obtained showed that overall eggs quality was better at the beginning of the spawning period, influencing the larvae performance. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-09-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252014000300629 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252014000300629 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1982-0224-20130146 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Ictiologia |
publisher.none.fl_str_mv |
Sociedade Brasileira de Ictiologia |
dc.source.none.fl_str_mv |
Neotropical Ichthyology v.12 n.3 2014 reponame:Neotropical ichthyology (Online) instname:Sociedade Brasileira de Ictiologia (SBI) instacron:SBI |
instname_str |
Sociedade Brasileira de Ictiologia (SBI) |
instacron_str |
SBI |
institution |
SBI |
reponame_str |
Neotropical ichthyology (Online) |
collection |
Neotropical ichthyology (Online) |
repository.name.fl_str_mv |
Neotropical ichthyology (Online) - Sociedade Brasileira de Ictiologia (SBI) |
repository.mail.fl_str_mv |
||neoichth@nupelia.uem.br |
_version_ |
1752122181364482048 |