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Metadados | Descrição | Idioma |
---|---|---|
Autor(es): dc.contributor | Universidade Estadual Paulista (Unesp) | - |
Autor(es): dc.contributor | Memorial University of Newfoundland | - |
Autor(es): dc.creator | Roza e Silva, Maria Luiza [UNESP] | - |
Autor(es): dc.creator | Pereira, Rafaela Torres [UNESP] | - |
Autor(es): dc.creator | Arvigo, Alexandre Luiz [UNESP] | - |
Autor(es): dc.creator | Zanuzzo, Fábio Sabbadin | - |
Autor(es): dc.creator | Barreto, Rodrigo Egydio [UNESP] | - |
Data de aceite: dc.date.accessioned | 2022-02-22T00:44:32Z | - |
Data de disponibilização: dc.date.available | 2022-02-22T00:44:32Z | - |
Data de envio: dc.date.issued | 2021-06-25 | - |
Data de envio: dc.date.issued | 2021-06-25 | - |
Data de envio: dc.date.issued | 2020-10-31 | - |
Fonte completa do material: dc.identifier | http://dx.doi.org/10.1016/j.aqrep.2020.100531 | - |
Fonte completa do material: dc.identifier | http://hdl.handle.net/11449/205513 | - |
Fonte: dc.identifier.uri | http://educapes.capes.gov.br/handle/11449/205513 | - |
Descrição: dc.description | Water flow is a typical hydrodynamic variable of natural occurrence in fish's lifetime and understanding its impact on biological processes (e.g. stress) can contribute to improve welfare in captive/farmed fish. For that, we tested whether water flow is a stressor by itself in a non-rheophilic (i.e. theoretically sensitive to water flow) fish species: Nile tilapia (Oreochromis niloticus). Additionally, this species was chosen due to its importance for world aquaculture and because is cultivated in a number of systems which the water flow could potentially be a stressor such as indoor tanks, recirculating aquaculture systems, biofloc system and cages. Here, we exposed fish to a novel environment with (520 L h−1) or without a deliberated water flow, and we measured plasma cortisol and ventilation rate (VR) as indicators of stress. In a first experiment, the VR was reduced by flow immediately after tilapia transference to a novel environment (16 min of evaluation), but cortisol was not affected. The plasma cortisol levels were also measured in a second experiment, 30 min, 1, 2 and 4 h after transference to a novel environment, but was also not affected by the presence of flow. In a theoretical perspective, flow is not a stressor by itself in a non-rheophilic species. It acted as a hydrodynamic factor that decrease the magnitude of ventilation response in a fish introduced into a novel environment, without effects on plasma cortisol levels. Therefore, the water flow eventually can be used to assist fish oxygenation after a disturbance event, such as introduction into a novel environment. | - |
Descrição: dc.description | Department of Structural and Functional Biology Institute of Biosciences of Botucatu UNESP CAUNESP | - |
Descrição: dc.description | Department of Ocean Sciences Memorial University of Newfoundland | - |
Descrição: dc.description | Department of Structural and Functional Biology Institute of Biosciences of Botucatu UNESP CAUNESP | - |
Idioma: dc.language | en | - |
Relação: dc.relation | Aquaculture Reports | - |
???dc.source???: dc.source | Scopus | - |
Palavras-chave: dc.subject | Beat | - |
Palavras-chave: dc.subject | Cortisol | - |
Palavras-chave: dc.subject | Novel environment | - |
Palavras-chave: dc.subject | Opercular | - |
Palavras-chave: dc.subject | Oreochromisniloticus | - |
Palavras-chave: dc.subject | Rate | - |
Título: dc.title | Effects of water flow on ventilation rate and plasma cortisol in Nile tilapia introduced into novel environment | - |
Tipo de arquivo: dc.type | livro digital | - |
Aparece nas coleções: | Repositório Institucional - Unesp |
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