Results 21 to 30 of about 284 (163)
Anais da Academia Brasileira de Ciências, 2022 The objective of this work was to evaluate the effect of autochthonous and allochthonous lactic acid bacteria (LAB) in two species of lambaris (Astyanax bimaculatus and Astyanax fasciatus), and to investigate the effects on intestinal microbiota and ...
ADOLFO JATOBÁ, GABRIEL F.A. JESUS
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Aquaculture, Fish and Fisheries, Volume 2, Issue 4, Page 277-286, August 2022., 2022 A 90‐day aquarium trial was conducted to evaluate the effect of temperature on the growth, blood chemistry and histology of vital organs in juvenile Ompok bimaculatus. Fish reared at 30℃ showed significantly higher growth performances, specific growth rate and haemoglobin and white blood cell counts in comparison to the control group at 25℃. Fish at 30℃
Md. Rashedul Islam +4 more
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The conundrum of pharyngeal teeth origin: the role of germ layers, pouches, and gill slits
Biological Reviews, Volume 97, Issue 1, Page 414-447, February 2022., 2022 ABSTRACT There are several competing hypotheses on tooth origins, with discussions eventually settling in favour of an ‘outside‐in’ scenario, in which internal odontodes (teeth) derived from external odontodes (skin denticles) in jawless vertebrates. The evolution of oral teeth from skin denticles can be intuitively understood from their location at ...
Ann Huysseune +2 more
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Environmental DNA, Volume 3, Issue 5, Page 889-900, September 2021., 2021 A multi‐marker scat DNA metabarcoding approach was used to examine the dietary diversity of the world's largest and rarest otter, the iconic giant otter (Pteronura brasiliensis) from fecal DNA. The combined use of highly discriminant markers (COI and 12S) and of local reference databases of DNA barcodes offered a high accuracy of taxonomic assignments ...
Erwan Quéméré +9 more
wiley +1 more source
Atresia of ovarian follicles in fishes, and implications and uses in aquaculture and fisheries
Journal of Fish Diseases, Volume 44, Issue 9, Page 1271-1291, September 2021., 2021 Abstract Atresia of ovarian follicles, that is the degenerative process of germ cells and their associated somatic cells, is a complex process involving apoptosis, autophagy and heterophagy. Follicular atresia is a normal component of fish oogenesis and it is observed throughout the ovarian cycle, although it is more frequent in regressing ovaries ...
Aldo Corriero +3 more
wiley +1 more source
Predation on pirarucu larvae by opportunistic fish species
Acta Amazonica, 2022 One of the constraints in pirarucu, Arapaima gigas farming is the reproduction in captivity, due to inconsistent number of spawning events per reproductive cycle, thus, unreliable availability of juvenile fish. This is a first-hand report on predation of
Adriana Ferreira LIMA +3 more
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Gonadal development and reproductive period of the characin Astyanax aff. bimaculatus (Characiformes: Characidae) in a tropical reservoir in southeastern Brazil [PDF]
Zoologia (Curitiba), 2019 The gonadal development of the characin Astyanax aff. bimaculatus from Funil Reservoir, an impoundment in the middle reaches of the Paraiba do Sul River in southeastern Brazil was analysed through histological, histochemical and histometric techniques ...
Francisco G. Araújo +4 more
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Zygote, 2019 SummaryA histological characterization of gonadal development in the tetra Astyanax bimaculatus was performed, aimed at determining its reproductive cycle in streams localized inside the Amazonian forest. Collections were carried out monthly from August 2017 to July 2018 at the Zoobotânica Foundation of Marabá, PA.
Jhennifer Gomes Cordeiro +7 more
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Isozymes of malate-and lactate dehydrogenase of Astyanax bimaculatus as biomarkers of environmental impact [PDF]
Ambiente e Agua - An Interdisciplinary Journal of Applied Science, 2019 The activity of certain isozymes may serve as biomarkers of specific physiological conditions of living organisms. The present work aimed to evaluate malate dehydrogenase (MDH) and lactate dehydrogenase (LDH) isozymes from the hepatic, branchial and renal tissues of the fish Astyanax bimaculatus as biochemical markers of environmental changes in the ...
Marilia Elias de Almeida +5 more
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Revista Brasileira de Zootecnia, 2006 Com o objetivo de determinar os níveis de energia digestível (ED) em função do nível de proteína bruta (PB) da ração para alevinos de lambari tambiú (Astyanax bimaculatus), foram utilizados 600 peixes com 1,30 ± 0,01 g, distribuídos em 40 aquários
Jorge Luiz Vieira Cotan +5 more
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