Consulta: creatorFacets:"Boaventura,Túlio P."
Registros recuperados: 2
Data/hora: 01/06/2024 12:16:45

An external tag for fish: tagging effects in different fish size classes and its influence on growth performance and hematology of Lophiosilurus alexandri (Siluriformes: Pseudopimelodidae)
Provedor de dados: 83
Autores: Boaventura,Túlio P.; Gil,Viviane S. B.; Gil,Camila S. B.; Peres,Anderson M.; Luz,Ronald K.
ABSTRACT This study tested an external tag for juveniles of Lophiosilurus alexandri and measured the effects of tagging in different size classes of fishes. Experiment 1 evaluated the retention rate and influence of the tag on survival and growth of three hundred fishes divided Small, Medium and Large size classes. After 90 days of experiment the fishes had 100% survival and the tag had a higher retention rate for animals of the Large size class. Experiment 2 evaluated the tag’s influence on hematology parameters of forty-two fishes at 5, 10 and 30 days post-tagging. In this experiment both tagged and untagged animals experienced 9.4% mortality. The hematocrit was higher on the 30th day for tagged animals than for untagged animals. No difference was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Catfish; Identification; Pacamã; Physiology; Repopulation; Retention.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252019000100214

Comparative study of the chemical composition, fatty acid profile, and nutritional quality of Lophiosilurus alexandri (Siluriformes: Pseudopimelodidae), a Brazilian carnivorous freshwater fish, grown in lotic, lentic, and aquaculture environments
Provedor de dados: 83
Autores: Sant´Ana,Léa S.; Iwamoto,Adriane A.; Crepaldi,Daniel V.; Boaventura,Túlio P.; Teixeira,Lilian V.; Teixeira,Edgar A.; Luz,Ronald K.
ABSTRACT Lophiosilurus alexandri is a carnivorous freshwater fish endemic of São Francisco basin and an endangered species. In this study, we analysed the chemical composition (moisture, protein, ash and lipid), fatty acid profile, and nutritional quality (atherogenic index, thrombogenecity index, ratio between hypocholesterolemic and hypercholesterolemic fatty acids and ω6/ω3 = ratio) of L. alexandri in lotic (river), lentic (hydroelectric dams) environments, under natural fed, and in laboratory controlled conditions fed with commercial diets. Cultured and lentic fish had significantly higher lipid levels (1.5 and 1.9- fold, respectively) than lotic fish. Lentic L. alexandri had significantly higher eicosapentaenoic acid (EPA) levels (4×) than cultured or...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dam; Feeding; Lipids; Pacamã; Ω3.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252019000500211