Mucormicose por Rhizopus sp. em peixes: apresentação do primeiro caso em Portugal

Coelho, Ana Cláudia; Fontaínhas‐Fernandes, A.; Santos, Susana; Cortes, Rui; Rodrigues, Jorge

doi:10.1590/s0102-09352003000200019

Cited by 2 publications

(1 citation statement)

References 8 publications

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“…49.70 ± 1.9 Total Am. Nitrogen 0.001 ± 0.0 0.002 ± 0.0 0.002 ± 0.0 0.002 ± 0.0 0.002 ± 0.0 Nitrite 0.000 ± 0.0 0.000 ± 0.0 0.000 ± 0.0 0.000 ± 0.0 0.000 ± 0.0 Nitrate 0.021 ± 0.0 0.096 ± 0.0 0.057 ± 0.0 0.042 ± 0.0 0.0142 ± 0.0 Orthophosphate 0.000 ± 0.0 0.000 ± 0.0 0.000 ± 0.0 0.000 ± 0.0 0.000 ± 0.0 Total Phosphorus 0.001 ± 0.0 0.000 ± 0.0 0.000 ± 0.0 0.001 ± 0.0 0.001 ± 0.0 (gills and skins) and necrosis, which are consequences of thermal stress associated to drop in fish immune system efficiency (Coelho et al, 2003).…”

Section: Tablementioning

confidence: 99%

Survival of purebred and hybrid Serrasalmidae under low water temperature conditions

et al. 2018

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The aim of the study was to evaluate the survival of Serrasalmidaes fish, pure and hybrid, during periods of low temperature. The experiment was carried out from June to August 2016 (51 days) in an aquaculture station of São Paulo Agribusiness Technology Agency, Brazil. A diallel crossbreeding between pacu and tambaqui was performed by artificial reproduction, generating four genetic groups: pacu (♂ pacu × ♀ pacu), tambaqui (♂ tambaqui × ♀ tambaqui), paqui (♂ tambaqui × ♀ pacu), and tambacu (♂ pacu × ♀ tambaqui). Fish were distributed in 24 experimental plots (110 fingerlings of each groups per plot) and were fed twice daily with commercial diets containing three different levels of crude protein (CP): 24%, 28% and 32%. When the water temperature showed successive decreases due to the environmental climatic conditions, the ponds were monitored daily to record the mortality. The data on number of days of life of animals were submitted to Cox multivariate regression analysis to test the effects of the genetic group, CP levels and the interaction between the two factors. Kaplan-Meier survival curves were adjusted for factors that had a significant effect on the Cox regression analysis. The pacu group presented higher survival than other groups, regardless of the CP level in the diet. The tambaqui and paqui groups were more susceptible to environmental conditions, especially when fed a diet containing a higher level of CP. Overall, purebred pacu presented greater adaptation to the production conditions in the region where the experiment was carried out. However, if the aim is the production of hybrid fish, crosses between pacu males and tambaqui females (Tambacu) generate fish that are resistant to low temperatures.

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Section: Tablementioning

confidence: 99%

Survival of purebred and hybrid Serrasalmidae under low water temperature conditions

et al. 2018

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Distribution of endocrine disruptors in the Mondego River estuary, Portugal

Ribeiro

Pardal

Martinho

et al. 2008

Environ Monit Assess

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Recent studies in the Mondego River estuary demonstrated signs of pollution in the area, but the nature of the contamination remains unexplored. Because there seems to be any studies in that zone checking for the simultaneous presence of xenoestrogenic endocrine disrupting compounds, either of animal (estradiol and estrone), vegetal (daidzein, genistein and biochanin A), pharmaceutical (17α-ethynylestradiol) or industrial (bisphenol A, 4-octylphenol, 4-nonylphenol) origins, the main objective of this study was to investigate their presence, in every year season and at eight points along the estuarine gradient. For this propose, water samples (2 L) were collected in high and low tides, preconcentrated in the Oasis HLB cartridges and cleaned in silica cartridges before their analysis by HPLC-DAD and GC-MS. The current data showed the absence of contamination by animal or pharmaceutical estrogens and by alkylphenols, but demonstrated the presence of high levels of phytoestrogens (up to 1

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Mucormicose por Rhizopus sp. em peixes: apresentação do primeiro caso em Portugal

Cited by 2 publications

References 8 publications

Survival of purebred and hybrid Serrasalmidae under low water temperature conditions

Survival of purebred and hybrid Serrasalmidae under low water temperature conditions

Distribution of endocrine disruptors in the Mondego River estuary, Portugal

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