58 documents found, page 1 of 6
Stunning and slaughter methods in gilthead seabream: animal welfare and muscle ...
Cabrera-Álvarez, María José; Soares, Sónia Marina António; Nuñez Velazquez, Samira; Anibal, Jaime; Esteves, Eduardo; Costa, RitaEuropean Union directives and international guidelines emphasise the need for humane slaughter practices, with particular attention to the proper stunning of fish prior to slaughter. This study investigates the impact of various combinations of stunning and slaughter methods on the welfare of gilthead seabream (Sparus aurata), a widely farmed species in the Mediterranean and Black Sea regions. Specifically, the...
First report of Calceostoma glandulosum (Monogenea) in Argyromus regius: morpho...
Ribeiro, Maria Carolina; Lourenço-Marques, Cátia; Pousão-Ferreira, Pedro; Soares, FlorbelaThe increase in fish production in aquaculture reflects the growth of the world population. However, this expansion is accompa nied by challenges, such as the intensification of production systems through increased stocking density, which induces stress in fish, weakening their immune system and making them more susceptible to disease outbreaks, particularly those caused by parasites. Monogeneans are ectoparasi...
Skin mucus and blood plasma as non-lethal sources of malnutrition protein bioma...
Oliveira, Joana; Raposo de Magalhães, Cláudia; Schrama, Denise; Rodrigues, Pedro M.; Barata, Marisa; Soares, Florbela; Pousão-Ferreira, PedroDeveloping dietary formulations for aquaculture that meet nutritional requirements is essential to production, as nutrition is key for fish growth and health. However, novel dietary formulations may induce malnutrition, which is complex to evaluate and often requires animal sacrifice. Therefore, finding reliable non-lethal biomarkers to diagnose malnutrition in fish is important. This study aimed to obtain vita...
Early life stage mechanisms of an active fish species to cope with ocean warmin...
Lima, André R.A.; Booms, Emily M.; Lopes, Ana Rita; Martins-Cardoso, Sara; Novais, Sara C; Lemos, Marco F.L.; Ribeiro, Laura; Castanho, SaraOcean’s characteristics are rapidly changing, modifying environmental suitability for early life stages of fish. We assessed whether the chronic effects of warming (24 ◦C) and hypoxia (<2–2.5 mg L− 1 ) will be amplified by the combination of these stressors on mortality, growth, behaviour, metabolism and oxidative stress of early stages of the white seabream Diplodus sargus. Combined warming and hypoxia synergi...
Effects of water temperature and structural habitat complexity on the routine s...
Vicente, Patrícia; Almeida, João; Ribeiro, Laura; Castanho, Sara; Candeias-Mendes, Ana; Pousão-Ferreira, Pedro; M. Faria, AnaCoastal habitats are increasingly threatened by multiple anthropogenic-related activities, which include ocean warming and loss of structural habitat complexity. These two pressures have the potential to severely affect the structure and function of marine biodiversity. Early life stages of many fish species recruit to coastal habitats at the end of their pelagic phase, benefiting from access to food, shelter a...
Looking at the potential of marine macroalgae supplementation to afford neuropr...
Neto, Ana; Brandão, Fátima; Almeida, Armando; Abreu, Helena; Pousão-Ferreira, Pedro; Cesário, Rute; Pacheco, Mário; Pereira, PatríciaBackground: Marine macroalgae have potential as a source of many natural compounds with health benefits [1], but their use to mitigate aquatic contaminants bioaccumulation in fish and resultant toxicity is an underexplored research topic. Objective: Asses if a marine macroalgae-enriched diet can provide neuroprotection Diplodus sargus when exposed to waterborne inorganic mercury (iHg), namely by reducing bioacc...
Effect of dietary l-glutamine supplementation on the intestinal physiology and ...
Matias, Ana Catarina; Viegas, Ana Rita; Couto, Ana; Lourenço-Marques, Cátia; Aragão, Cláudia; Castanho, Sara; Gamboa, Margarida; Candeias-Mendes, AnaThe maturation of the intestinal digestive and absorptive functions might limit the amount of absorbed nutrients to fulfil the high requirements of the fast-growing marine fish larva. Glutamine (Gln) has been described to improve intestinal epithelium functions, due to its involvement in energy metabolism and protein synthesis. The purpose of this study was to evaluate dietary 0.2% Gln supplementation on aspect...
Histological evaluation of purple sea urchin (Paracentrotus lividus) gonads: in...
Araújo, João; Gamboa, Margarida; Choulis, Ioannis; Mendes, Ana Candeias; Cabrita, Elsa; Pousão-Ferreira, Pedro; Soares, FlorbelaUnderstanding and controlling reproductive cycles and gonad maturation in cultivated species are crucial in aquaculture. The sea urchin Paracentrotus lividus, known for its edible gonads, requires careful maturation control for both reproduction and commercialization. This study explores the impact of temperature, photoperiod, and diet on gonad development to enhance year-round aquaculture practices. Using two ...
Macroinvertebrates associated with macroalgae within integrated multi-trophic a...
Vieira, Rafael; Mateus, Miguel; Afonso, Carlos; Soares, Florbela; Pousão-Ferreira, Pedro; Gamito, SofiaThe present work aims to evaluate the macroinvertebrate community associated with macroalgae in earthen pond systems to better understand their potential in detritus recycling and as an accessory production. Sampling took place on the settling pond of an aquaculture research station, where macroalgae permanently occurred at high densities. The results suggest differentiation between seasons but not between site...
Eco-innovative aquafeeds biofortified with asparagopsis taxiformis to improve t...
Marmelo, Isa; Lourenço-Marques, Cátia; Silva, Iris A.L.; Soares, Florbela; Pousão-Ferreira, Pedro; Mata, Leonardo; Marques, António; Diniz, Mário SousaExtreme weather events, like marine heatwaves (MHWs), are becoming more frequent and severe due to climate change, posing several challenges to marine ecosystems and their services. As disease outbreaks are often prompted by these acute phenomena, it is essential to develop ecoinnovative strategies that can efficiently improve farmed fish resilience, especially under suboptimal rearing conditions, thereby ensur...