Lethal Temperatures for Silver Catfish, Rhamdia quelen, Fingerlings
Silver catfish, Rhamdia quelen, is widely distributed in rivers and lakes of Brazil and used in fish culture. The objective of this study was to determine the lower and the upper lethal temperatures for fingerlings of this species. Fishes were acclimated to temperatures of 16, 21, 26, and 31°C for 2...
| Autor principal: | Chippari-Gomes, Adriana Regina |
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| Outros Autores: | Gomes, Levy de Carvalho, Baldisserotto, Bernardo |
| Grau: | Artigo |
| Idioma: | English |
| Publicado em: |
Journal of Applied Aquaculture
2020
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| Assuntos: | |
| Acesso em linha: |
https://repositorio.inpa.gov.br/handle/1/19198 |
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oai:repositorio:1-19198 |
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dspace |
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oai:repositorio:1-19198 Lethal Temperatures for Silver Catfish, Rhamdia quelen, Fingerlings Chippari-Gomes, Adriana Regina Gomes, Levy de Carvalho Baldisserotto, Bernardo Catfish Culture Larva Mortality Temperature Effect Pisces Rhamdia Quelen Sigmoidea Silver catfish, Rhamdia quelen, is widely distributed in rivers and lakes of Brazil and used in fish culture. The objective of this study was to determine the lower and the upper lethal temperatures for fingerlings of this species. Fishes were acclimated to temperatures of 16, 21, 26, and 31°C for 22 days. Experiments increasing or decreasing water temperature of the tanks were carried out to obtain 0 and 100% mortality. The mean lethal temperature (LT50) was calculated by nonlinear, sigmoid regression. The lower LT50 values were 7.71, 9.87, 10.97, and 14.22°C, and the upper values were 33.5, 33.55, 34.5, and 34.5°C for acclimation temperatures of 16, 21, 26, and 31°C, respectively. The area of the thermal tolerance polygon (expressed as °C2) for fingerlings of silver catfish was 804, indicating that this species is eurythermal. © 1999 Taylor & Francis Group, LLC. 2020-06-15T22:06:15Z 2020-06-15T22:06:15Z 1999 Artigo https://repositorio.inpa.gov.br/handle/1/19198 10.1300/J028v09n04_02 en Volume 9, Número 4, Pags. 11-21 Restrito Journal of Applied Aquaculture |
| institution |
Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional |
| collection |
INPA-RI |
| language |
English |
| topic |
Catfish Culture Larva Mortality Temperature Effect Pisces Rhamdia Quelen Sigmoidea |
| spellingShingle |
Catfish Culture Larva Mortality Temperature Effect Pisces Rhamdia Quelen Sigmoidea Chippari-Gomes, Adriana Regina Lethal Temperatures for Silver Catfish, Rhamdia quelen, Fingerlings |
| topic_facet |
Catfish Culture Larva Mortality Temperature Effect Pisces Rhamdia Quelen Sigmoidea |
| description |
Silver catfish, Rhamdia quelen, is widely distributed in rivers and lakes of Brazil and used in fish culture. The objective of this study was to determine the lower and the upper lethal temperatures for fingerlings of this species. Fishes were acclimated to temperatures of 16, 21, 26, and 31°C for 22 days. Experiments increasing or decreasing water temperature of the tanks were carried out to obtain 0 and 100% mortality. The mean lethal temperature (LT50) was calculated by nonlinear, sigmoid regression. The lower LT50 values were 7.71, 9.87, 10.97, and 14.22°C, and the upper values were 33.5, 33.55, 34.5, and 34.5°C for acclimation temperatures of 16, 21, 26, and 31°C, respectively. The area of the thermal tolerance polygon (expressed as °C2) for fingerlings of silver catfish was 804, indicating that this species is eurythermal. © 1999 Taylor & Francis Group, LLC. |
| format |
Artigo |
| author |
Chippari-Gomes, Adriana Regina |
| author2 |
Gomes, Levy de Carvalho Baldisserotto, Bernardo |
| author2Str |
Gomes, Levy de Carvalho Baldisserotto, Bernardo |
| title |
Lethal Temperatures for Silver Catfish, Rhamdia quelen, Fingerlings |
| title_short |
Lethal Temperatures for Silver Catfish, Rhamdia quelen, Fingerlings |
| title_full |
Lethal Temperatures for Silver Catfish, Rhamdia quelen, Fingerlings |
| title_fullStr |
Lethal Temperatures for Silver Catfish, Rhamdia quelen, Fingerlings |
| title_full_unstemmed |
Lethal Temperatures for Silver Catfish, Rhamdia quelen, Fingerlings |
| title_sort |
lethal temperatures for silver catfish, rhamdia quelen, fingerlings |
| publisher |
Journal of Applied Aquaculture |
| publishDate |
2020 |
| url |
https://repositorio.inpa.gov.br/handle/1/19198 |
| _version_ |
1787145098500243456 |
| score |
11.755432 |