| Registro completo |
| Provedor de dados: |
Neotropical Ichthyology
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| País: |
Brazil
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| Título: |
Osmotic induction marking with Alizarin Red S on juveniles of pejerrey, Odontesthes bonariensis (Atherinopsidae)
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| Autores: |
Campanella,Daniela
Gárriz,Ángela
Colautti,Darío C.
Somoza,Gustavo M.
Miranda,Leandro A.
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| Data: |
2013-03-01
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| Ano: |
2013
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| Palavras-chave: |
Fin rays
Fish tag
Otolith
Scales
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| Resumo: |
Juveniles of pejerrey, Odontesthes bonariensis, were exposed to 0.1% Alizarin Red S (ARS) alone or with a previous immersion in 2.2% saline solution (Osmotic Induction, OI) to enhance the ARS marking method. Fish were marked in the field and immediately released in 1 m3 cages in "La Salada de Monasterio" lagoon, Chascomús, Buenos Aires , Argentina. After 73 days, clear marks were observed in the otoliths, caudal fin rays and scales with both treatments, being the intensity of the signal in the scales of OI+ARS treated fish higher. On the other hand, no marks were observed in the control group on the same structures. Approximately one year post-treatment (385 days), only marks in caudal fin rays were found clearly in OI+ARS treated fish. After this period, no significant differences in total length or weight between marked or control fish were observed and the mortality ranged between 30-40 % in all cages. These results provide strong evidence for the potential applicability of this cost-effective marking technique in differentiation of wild and hatchery-produced pejerrey. The success in the caudal fin rays marking is also important because it is easy to do and does not require the sacrifice of fish.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252013000100095
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| Editor: |
Sociedade Brasileira de Ictiologia
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| Relação: |
10.1590/S1679-62252013000100011
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| Formato: |
text/html
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| Fonte: |
Neotropical Ichthyology v.11 n.1 2013
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| Direitos: |
info:eu-repo/semantics/openAccess
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