Morfologia e quantificação da microbiota intestinal do curimbatá (Prochilodus lineatus) e do cascudo cinza (Pterygoplichthys anisitsi) cultivados em cativeiro

Makino, Lilian Cristina; Faustino, Francine; Paes, M.C.F.; Beraldo-Massoli, Mariana Casteleti; Cardozo, Marita Vedovelli; Schocken-Iturrino, R. P.; Nakaghi, Laura Satiko Okada

doi:10.1590/s0102-09352012000400019

Cited by 3 publications

(3 citation statements)

References 23 publications

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“…All procedures followed guidelines for the ethical treatment of animals (CEUA-015/2013). Water temperature ranged between 26.0ºC and 27.0ºC, whilst electrical conductivity, pH, turbidity and dissolved oxygen remained within the comfort range for the species (Table 1), as reported for the genus Prochilodus (Bomfim et al, 2005;Makino et al, 2012). Ammonium levels were similar to or lower than those observed in a previous study when growth in length and weight was similar to that reported for other larvae of the genus Prochilodus (Santos & Luz, 2009), demonstrating appropriate larval cultivation conditions for P. argenteus.…”

Section: Methodssupporting

confidence: 78%

Development of the digestive system in larvae of the Neotropical fish Prochilodus argenteus (Characiformes, Prochilodontidae)

Santos

Pedreira

Santos

et al. 2016

Acta Sci. Anim. Sci.

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The development of the digestive system in larvae of the Neotropical fish P. argenteus was analyzed histologically. On the 3 rd day after hatching, the digestive system comprised oropharyngeal cavity, esophagus and simple undifferentiated tube. Since secreting cells, positive to Alcian Blue (AB), were found in the esophagus, digestive activity in the initial phase had occurred. On the 18 and 28 th days after hatching, the esophagus was positive for AB and Periodic Acid Schiff (PAS) stain. The stomach was fully differentiated, with the cardiac, fundic and pyloric regions. Different regions of the epithelium were characterized by basic and acidic secreting cells (AB and PAS positive). On the 18 and 28 th days after hatching, the intestine was long, coiled and divided into proximal, middle and distal segments with pyloric ceca. Secreting cells in different regions of the gut were either positive or negative for AB and PAS. Results showed that larvae of P. argenteus exhibited digestive activity on the third day after hatching, with fully differentiated stomach and intestines on the 18 and 28 th days and their different regions featuring secreting cells.

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Section: Methodssupporting

confidence: 78%

Development of the digestive system in larvae of the Neotropical fish Prochilodus argenteus (Characiformes, Prochilodontidae)

Santos

Pedreira

Santos

et al. 2016

Acta Sci. Anim. Sci.

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“…Thus, there is still a relatively low number of studies focusing on microbiomes in wild living fish. Studies involving fish microbiomes from the SFR are still scarce (Silva et al, 2005;Makino et al, 2012;Santos et al, 2014;Da Silva et al, 2020). Even though important, they are traditionally limited by culture-dependent methods.…”

Section: Introductionmentioning

confidence: 99%

Hatchery tanks induce intense reduction in microbiota diversity associated with gills and guts of two endemic species of the São Francisco River

et al. 2022

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The São Francisco River (SFR), one of the main Brazilian rivers, has suffered cumulative anthropogenic impacts, leading to ever-decreasing fish stocks and environmental, economic, and social consequences. Rhinelepis aspera and Prochilodus argenteus are medium-sized, bottom-feeding, and rheophilic fishes from the SFR that suffer from these actions. Both species are targeted for spawning and restocking operations due to their relevance in artisanal fisheries, commercial activities, and conservation concerns. Using high-throughput sequencing of the 16S rRNA gene, we characterized the microbiome present in the gills and guts of these species recruited from an impacted SFR region and hatchery tanks (HT). Our results showed that bacterial diversity from the gill and gut at the genera level in both fish species from HT is 87% smaller than in species from the SFR. Furthermore, only 15 and 29% of bacterial genera are shared between gills and guts in R. aspera and P. argenteus from SFR, respectively, showing an intimate relationship between functional differences in organs. In both species from SFR, pathogenic, xenobiont-degrading, and cyanotoxin-producer bacterial genera were found, indicating the critical pollution scenario in which the river finds itself. This study allowed us to conclude that the conditions imposed on fish in the HT act as important modulators of microbial diversity in the analyzed tissues. It also raises questions regarding the effects of these conditions on hatchery spawn fish and their suitability for restocking activities, aggravated by the narrow genetic diversity associated with such freshwater systems.

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“…A camada muscular é responsável pelos movimentos peristálticos e a sua espessura pode ser alterada no segmento intestinal pela espécie, o hábito alimentar e a composição da proteína da dieta (Cao e Wang, 2009;Cardoso, 2005;Makino, 2010 …”

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Alterações histológicas no epitélio intestinal de juvenis de dourado Salminus brasiliensis alimentados com dietas contendo fontes proteicas vegetais

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Morfologia e quantificação da microbiota intestinal do curimbatá (Prochilodus lineatus) e do cascudo cinza (Pterygoplichthys anisitsi) cultivados em cativeiro

Abstract: Morfologia e quantificação da microbiota intestinal do curimbatá (Prochilodus lineatus)

Cited by 3 publications

References 23 publications

<b>Development of the digestive system in larvae of the Neotropical fish <i>Prochilodus argenteus</i> (Characiformes, Prochilodontidae)

<b>Development of the digestive system in larvae of the Neotropical fish <i>Prochilodus argenteus</i> (Characiformes, Prochilodontidae)

Hatchery tanks induce intense reduction in microbiota diversity associated with gills and guts of two endemic species of the São Francisco River

Alterações histológicas no epitélio intestinal de juvenis de dourado <em>Salminus brasiliensis</em> alimentados com dietas contendo fontes proteicas vegetais

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