72 documents found, page 1 of 8
Understanding fish larvae’s feeding biology to improve aquaculture feeding prot...
Ribeiro, Laura; Hubert, François Noel; Rodrigues, Vera; Rojas-Garcia, Carlos; Dinis, Maria TeresaKnowing that food ingestion and digestion are processes under neuroendocrine regulation, it is important to understand how fish larvae regulate these processes, when the digestive system itself is under development. This study aimed to analyze how gilthead seabream (<i>Sparus aurata</i>) larval feeding incidence and intensity were affected by time, light, and water temperature, through the analysis of gut conte...
Characterization of spawning rhythms of a sparidae aquaculture species, the whi...
Santos, Cátia; Soares, Florbela; Candeias-Mendes, Ana; Pousão‐Ferreira, Pedro; Dinis, Maria Teresa; Oliveira, CatarinaOne of the most visible features of fish reproduction is seasonality; however, daily rhythmicity is present in most species and should not be disregarded. This study investigated the seasonal and daily spawning rhythms of the white seabream (Diplodus sargus) in captivity, and a possible endogenous control of the daily rhythm. Spawns were monitored daily, during an entire reproductive season by using an automati...
Optimizing rearing and welfare in Senegalese sole (Solea senegalesensis) broods...
Figueiredo, Filipe; Aragão, Cláudia; Pinto, Wilson; Dinis, Maria Teresa; Oliveira, CatarinaBroodstock rearing conditions and handling procedures should be optimized in aquaculture species in order to benefit fish welfare and guarantee optimal conditions for spawning. In teleosts, basal cortisol levels display daily rhythms, oscillating along the 24 h of the day. In this sense, handling fish at different moments of the day may lead to different stress responses. The present study aimed at investigatin...
Aquacultura Sustentável: da subsistência à produção comercial
Rocha, Rui JM; Dinis, Maria TeresaA aquacultura é uma atividade económica que abrange todas as atividades que têm como objetivo a produção controlada, transformação e comercialização de organismos aquáticas, plantas ou de animais, de água doce, salobra ou salgada. O aumento exponencial da população mundial, associado ao declínio dos recursos naturais, levou a que a contribuição dos organismos aquáticos produzidos em aquacultura para o consumo t...
Aquacultura sustentável: da subsistência à produção comercial
Rocha, Rui J. M.; Dinis, Maria TeresaA aquacultura é uma atividade económica que abrange todas as atividades que têm como objetivo a produção controlada, transformação e comercialização de organismos aquáticas, plantas ou de animais, de água doce, salobra ou salgada. O aumento exponencial da população mundial, associado ao declínio dos recursos naturais, levou a que a contribuição dos organismos aquáticos produzidos em aquacultura para o consumo t...
Farmed fish as a functional food: Perception of fish fortification and the infl...
Ribeiro, Ana Ramalho; Altintzoglou, Themistoklis; Mendes, Júlio; Nunes, Maria Leonor; Dinis, Maria Teresa; Dias, JorgeBeing a rich source of important nutrients, including highly digestible proteins, vitamins (A, D3), trace minerals (iodine, selenium) and n-3 long chain polyunsaturated fatty acids (n-3 LCPUFA), fish consumption is generally regarded as part of a healthy dietary pattern. Exogenous feeding in aquaculture unlocks the possibility to tailor fish composition with healthy valuable nutrients. However, the use of suppl...
Natural fortification fortification of trout with dietary macroalgae and seleni...
Ribeiro, Ana Ramalho; Gonçalves, Amparo; Bandarra, Narcisa; Nunes, Maria Leonor; Dinis, Maria Teresa; Dias, Jorge; Rema, PauloFish and seafood consumption are increasing worldwide and the contribution of aquaculture products to consumers' diets is significant. External feeding in aquaculture unlocks the possibility of tailoring fish products with health beneficial compounds. A study was undertaken to evaluate the feed fortification with an iodine rich macroalgae (Laminaria digitata) and selenised yeast, at its maximum permitted levels...
Solea senegalensis sperm cryopreservation: new insights on sperm quality
F RIESCO, MARTA; Oliveira, Catarina; Soares, Florbela; Gavaia, Paulo J.; Dinis, Maria Teresa; Cabrita, ElsaCryopreservation of Senegalese sole sperm can represent an alternative to overcome some reproductive problems of this species. However, it is important to guarantee the safe use of cryopreserved sperm by selecting an appropriate protocol according to a high demand quality need to be ensured. It has been demonstrated that traditional assays such as motility and viability do not provide enough information to iden...
Phaeodactylum tricornutum in finishing diets for gilthead seabream: effects on ...
Ribeiro, Ana Ramalho; Gonçalves, Amparo; Barbeiro, Mónica; Bandarra, Narcisa; Nunes, Maria Leonor; Carvalho, Maria Luisa; Silva, Joana; Navalho, JoãoMicroalgal biomasses are known to play a major role in fish pigmentation, which is particularly important in farmed fish, since colour and external appearance are the first cue for customers when choosing seafood. A study was undertaken to assess the potential of microalgae biomass from the diatom Phaeodactylum tricornutum as a functional ingredient for gilthead seabream (Sparus aurata) feeds. Three experimenta...
Sustainability vs. Quality in gilthead seabream (Sparusaurata L.) farming: are ...
Matos, Elisabete; Dias, Jorge; Dinis, Maria Teresa; Silva, Tome S.European aquaculture industry should be at the forefront of sustainable development, providing healthy and safe food of the highest quality to the consumer, through an environmentally sound approach. The purpose of this review was to explore in what way the current drive for sustainability has affected what the consumer perceives as quality in fish, specifically in gilthead seabream, one of the most important f...