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8. Salting and Drying of Cod

Author

Oliveira, Helena, Nunes, Maria Leonor, Vaz-Pires, Paulo, Costa, Rui, Kristbergsson, Kristberg, Series editor, and Oliveira, Jorge, editor

Published
2016
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9. Gulls in Porto Coastline as Reservoirs for Salmonella spp.: Findings from 2008 and 2023.

Author

Rodrigues, Inês C., Cristal, Ana Paula, Ribeiro-Almeida, Marisa, Silveira, Leonor, Prata, Joana C., Simões, Roméo, Vaz-Pires, Paulo, Pista, Ângela, and Martins da Costa, Paulo

Subjects
GULLS, WHOLE genome sequencing, SALMONELLA, DRUG resistance in microorganisms, HUMAN settlements, SALMONELLA enterica, SALMONELLA typhimurium
Abstract

Gulls act as intermediaries in the exchange of microorganisms between the environment and human settlements, including Salmonella spp. This study assessed the antimicrobial resistance and molecular profiles of Salmonella spp. isolates obtained from fecal samples of gulls in the city of Porto, Portugal, in 2008 and 2023 and from water samples in 2023. Antimicrobial susceptibility profiling revealed an improvement in the prevalence (71% to 17%) and antimicrobial resistance between the two collection dates. Two isolate collections from both 2008 and 2023 underwent serotyping and whole-genome sequencing, revealing genotypic changes, including an increased frequency in the monophasic variant of S. Typhimurium. qacE was identified in 2008 and 2023 in both water and fecal samples, with most isolates exhibiting an MDR profile. The most frequently observed plasmid types were IncF in 2008 (23%), while IncQ1 predominated in 2023 (43%). Findings suggest that Salmonella spp. circulate between humans, animals, and the environment. However, the genetic heterogeneity among the isolates from the gulls' feces and the surface water may indicate a complex ecological and evolutionary dynamic shaped by changing conditions. The observed improvements are likely due to measures to reduce biological contamination and antimicrobial resistance. Nevertheless, additional strategies must be implemented to reduce the public health risk modeled by the dissemination of pathogens by gulls. [ABSTRACT FROM AUTHOR]

Published
2024
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11. Combined Effects of Temperature and Dietary Lipid Level on Body Composition, Growth, and Freshness Profile in European Seabass, Dicentrarchus labrax

Author

Cardoso, Patrícia G., primary, Gonçalves, Odete, additional, Cavalheri, Thais, additional, Amorim, Vânia E., additional, Cao, Weiwei, additional, Alexandrino, Diogo A. M., additional, Jia, Zhongjun, additional, Carvalho, Maria F., additional, Vaz-Pires, Paulo, additional, and Ozório, Rodrigo O. A., additional

Published
2023
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12. Combined effects of temperature and dietary lipid level on body composition, growth, and freshness profile in european seabass, dicentrarchus labrax

Author

Cardoso, Patrícia G., Gonçalves, Odete, Cavalheri, Thais, Amorim, Vânia E., Cao, Weiwei, Alexandrino, Diogo A. M., Jia, Zhongjun, Carvalho, Maria F., Vaz-Pires, Paulo, Ozório, Rodrigo O. A., and Repositório Científico do Instituto Politécnico do Porto

Subjects
Freshness, Fish quality, Feeding, Fitness, Climate change, Fish-spoiling bacteria
Abstract

The effects of increasing temperature and dietary lipid level on the body composition, growth performance, and freshness profile of the European seabass (Dicentrarchus labrax) were evaluated through a fish trial lasting 56 days. Findings demonstrated that fish reared at 24 °C presented a lower lipid level and a higher daily growth index than those reared at 20 °C. On the other hand, the sea bass condition index did not change among treatments. Additionally, sensory analysis (the Quality Index Method) and microbiological analysis revealed that fish reared at 24 °C showed better freshness conditions than those at 20 °C. Nevertheless, the dietary lipid level did not have any influence on fish freshness conditions. Therefore, our data suggest that the increase in temperature to 24 °C is beneficial for the growth and freshness profile of this particular species in aquaculture.

Published
2023

32. Fatty Acid Profile of Pacific Oyster, Crassostrea gigas , Fed Different Ratios of Dietary Seaweed and Microalgae during Broodstock Conditioning

Author

Rato, Ana, primary, Pereira, Luís F., additional, Joaquim, Sandra, additional, Gomes, Romina, additional, Afonso, Cláudia, additional, Cardoso, Carlos, additional, Machado, Jorge, additional, Gonçalves, José F. M., additional, Vaz‐Pires, Paulo, additional, Magnoni, Leonardo J., additional, Matias, Ana M., additional, Matias, Domitília, additional, Bandarra, Narcisa M., additional, and Ozório, Rodrigo O. A., additional

Published
2019
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33. Elemental composition and bioaccessibility of farmed oysters (Crassostrea gigas) fed different ratios of dietary seaweed and microalgae during broodstock conditioning

Author

Cardoso, Carlos, primary, Gomes, Romina, additional, Rato, Ana, additional, Joaquim, Sandra, additional, Machado, Jorge, additional, Gonçalves, José Fernando, additional, Vaz‐Pires, Paulo, additional, Magnoni, Leonardo, additional, Matias, Domitília, additional, Coelho, Inês, additional, Delgado, Inês, additional, Castanheira, Isabel, additional, Matos, Joana, additional, Ozório, Rodrigo, additional, Bandarra, Narcisa, additional, and Afonso, Cláudia, additional

Published
2019
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40. Viability of dietary substitution of live microalgae with dry Ulva rigida in broodstock conditioning of Pacific oyster (Crassostrea gigas)

Author

Rato, Ana, primary, Joaquim, Sandra, additional, Tavares, Tânia G., additional, Martins, Zita E., additional, Guedes, A. Catarina, additional, Pereira, Luís F., additional, Machado, Jorge, additional, Matias, A. Margarete, additional, Gonçalves, José F. M., additional, Vaz-Pires, Paulo, additional, Magnoni, Leonardo J., additional, Ozório, Rodrigo O. A., additional, and Matias, Domitília, additional

Published
2018
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41. Genetic diversity and population structure of the blue jack mackerel Trachurus picturatus across its western distribution.

Author

Moreira, Cláudia, Correia, Alberto T., Vaz‐Pires, Paulo, and Froufe, Elsa

Subjects
CYTOCHROME oxidase, CYTOCHROME b, MACKERELS
Abstract

Blue jack mackerel Trachurus picturatus collected at six sampling locations of the north‐east Atlantic Ocean (Azores, Madeira, Canaries, and Matosinhos, Peniche and Portimão, mainland Portugal) and one location in the Mediterranean (Sicily), were used to examine the genetic structure of this species. Three mitochondrial gene regions (cytochrome c oxidase subunit I, cytochrome b and control region) were used to study the genetic structure of the species in Macaronesia, as well as to compare the genetic diversity of this region with published results from its eastern distribution. All markers indicated the absence of genetic structure among populations, with high indices of genetic diversity. These results suggest that the species went through a bottleneck event, followed by a recent population expansion. Moreover, the comparison with previously published results from the T. picturatus Mediterranean distribution suggests the existence of a single panmictic population throughout the species' full range. This was, however, an unexpected result since other methodologies have shown the presence of, at least, three different population‐units in the NE Atlantic Ocean. [ABSTRACT FROM AUTHOR]

Published
2019
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44. The fishery sector in portugal - report study

Author

de Arruda, Lia Ferraz, Martins, Priscila Eloi, da Silva, Adriana Figueiredo, de Moraes, Julieta E. Rodini [UNESP], Vaz-Pires, Paulo, de Almeida Ozório, Rodrigo Otávio, Oetterer, Marília, Universidade de São Paulo (USP), Universidade Estadual Paulista (Unesp), UP, Ctr Interdisciplinar Invest Marinha & Ambiental C, Universidade Estadual Paulista (UNESP), Instituto de Ciências Biomédicas de Abel Salazar (ICBAS/UP), Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR/UP), and ESALQ

Subjects
Production, seafood consumption, sustainability
Abstract

Made available in DSpace on 2013-08-12T18:12:44Z (GMT). No. of bitstreams: 0 Previous issue date: 2011-01-01 Made available in DSpace on 2013-09-30T17:41:46Z (GMT). No. of bitstreams: 0 Previous issue date: 2011-01-01 Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T13:12:36Z No. of bitstreams: 0 Made available in DSpace on 2014-05-20T13:12:36Z (GMT). No. of bitstreams: 0 Previous issue date: 2011-01-01 Interviews were conducted with scientific researchers and process industries, bibliographic research and observational technical visits to collect information about the portuguese fishery sector. The relevance of this sector derives essentially from the fact that fish is a key component of food and responsible for large number of jobs within the Portuguese population. With the reduction in catches due to the decline in world's fish stocks the government has encouraged actions of ecological nature to promote the sector sustainability. Actually, the decline in the market expression facilitates the entry of stranger companies from others countries. Entrepreneurs must increase the productivity and provide quality assured products in order to achieve the export market. ESALQ, BR-13418900 Piracicaba, SP, Brazil Univ São Paulo, Ctr Energia Nucl Agr & Ambiente USP CENA, Piracicaba, SP, Brazil USP, ESALQ, Piracicaba, SP, Brazil Univ Estadual Paulista, Ctr Agr CAUNESP UNESP, Jaboticabal, SP, Brazil UP, ICBAS, Oporto, Portugal Ctr Interdisciplinar Invest Marinha & Ambiental C, Oporto, Portugal Univ Estadual Paulista, Ctr Agr CAUNESP UNESP, Jaboticabal, SP, Brazil

Published
2011

45. A Joint European Certification System for Sustainable Non-Intensive Aquaculture: a proposal from the SEACASE project

Author

Vaz-Pires, Paulo, Ramalho Ribeiro, Ana, Jesus, Ana, Soares, F., Conceição, Luis E. C., Dinis, M. T., Ribeiro, Laura, Pousão-Ferreira, P., Cunha, Maria Emilia, Ferreira, Hugo, Yúfera, Manuel, Marino, Giovanna, Boglione, Clara, Cataudella, Stefano, Hussenot, Jérome, Begout, Marie-Laure, Makridis, Pavlos, Buard, Eric, and Blachier, Philippe

Subjects
Certification System, SEACASE project, Aquaculture
Abstract

The European project Sustainable extensive and semi-intensive coastal aquaculture in Southern Europe (SEACASE) included the proposal of 6 Codes of Conduct for the aquaculture systems studied during the project work. These case studies are typical of the countries involved, namely semi-intensive polyculture (Portugal and Spain), extensive polyculture in esteros (Spain), integrated systems (France), valliculture (Italy), nursery ponds (Greece, Portugal, France and Italy) and eel ponds (France). This article was written having as objective the providing of a concise summary of the characteristics that SEACASE collaborators found to be central to build a complete and trustable Certification system for products of sustainable non-intensive aquaculture (for “certification of sustainability”, see Ojeda, 2008). The 6 Codes of Conduct are the basic information to build such a system in the future., This study has been carried out with the financial support from the Commission of the European Communities, specific RTD programme “Specific Support to Policies”, SSP-2005-44483 “SEACASE - Sustainable extensive and semi-intensive coastal aquaculture in Southern Europe”, and does not necessarily reflect the European Commission views and in no way anticipates the Commission’s future policy in this area.

Published
2010

47. Dietary probiotic supplementation in juvenile rainbow trout (Oncorhynchus mykiss) reared under cage culture production: effects on growth, fish welfare, flesh quality and intestinal microbiota

Author

Ozório, Rodrigo O A, primary, Kopecka-Pilarczyk, Justyna, additional, Peixoto, Maria J, additional, Lochmann, Rebecca, additional, Santos, Ricardo J, additional, Santos, Gonçalo, additional, Weber, Barbara, additional, Calheiros, Joaquim, additional, Ferraz-Arruda, Lia, additional, Vaz-Pires, Paulo, additional, and Gonçalves, José F M, additional

Published
2015
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