A5035110562- Myxozoan Parasites in Aquatic Species
- Aquaculture disease management and microbiota
- Gut microbiota and health
- Marine Ecology and Invasive Species
- Aquatic Invertebrate Ecology and Behavior
- Parasite Biology and Host Interactions
- Microbial infections and disease research
- Coastal wetland ecosystem dynamics
- Epigenetics and DNA Methylation
- Fish Ecology and Management Studies
- Coccidia and coccidiosis research
- Vibrio bacteria research studies
- Ichthyology and Marine Biology
- Pharmaceutical and Antibiotic Environmental Impacts
- Fish Biology and Ecology Studies
- Aquaculture Nutrition and Growth
- Reproductive tract infections research
- Physiological and biochemical adaptations
- Identification and Quantification in Food
- Cephalopods and Marine Biology
- Planarian Biology and Electrostimulation
- Water Quality Monitoring Technologies
- Coral and Marine Ecosystems Studies
- Parasitic Infections and Diagnostics
- Bacteriophages and microbial interactions
Universidade do Porto
2013-2024
Vale (Brazil)
2018-2021
Centro de Investigação em Biodiversidade e Recursos Genéticos
2020
Abstract The mucosal surfaces of fish harbour microbial communities that can act as the first-line defense against pathogens. Infectious diseases are one main constraints to aquaculture growth leading huge economic losses. Despite their negative impacts on diversity and overall health, antibiotics still method choice treat many such diseases. Here, we use 16 rRNA V4 metataxonomics study over a 6 week period dynamics gill skin microbiomes farmed seabass before, during after natural disease...
Abstract Fish microbiome plays an important role in maintaining host homeostasis, with many bacterial functions directly linked to fitness. research is advancing fast, especially the context of aquaculture where several stressors are known disrupt stability host‐associated bacteria, prompting dysbiosis. Therefore, understanding signatures dysbiosis different fish mucosae and their association such fundamental set up efficient health‐monitoring strategies, as well sound objective working...
Abstract Background Important changes in microbial composition related to sexual maturation have been already reported the gut of several vertebrates including mammals, amphibians and fish. Such fish are linked reproduction growth during developmental stages, diet transitions critical life events. We used amplicon (16S rRNA) high-throughput sequencing characterize skin gill bacterial microbiota farmed seabass seabream belonging three different age groups: early late juveniles mature adults....
The Apicomplexa from aquatic environments are understudied relative to their terrestrial counterparts, and the seminal work assessing phylogenetic relations of fish-infecting lineages is mostly based on freshwater hosts. taxonomic uncertainty some apicomplexan groups, such as coccidia, high many genera were recently shown be paraphyletic, questioning value strict morphological ecological traits for parasite classification. Here, we surveyed genetic diversity in several commercially valuable...
Abstract Ortholinea labracis n. sp. is described and its life cycle inferred from a Southern Portuguese fish farm, with basis on microscopic molecular procedures. This myxosporean parasite infects the urinary bladder of European seabass Dicentrarchus labrax intestinal epithelium marine oligochaete genus Tectidrilus . Myxospores subspherical in valvular view ellipsoidal sutural measuring 7.6 ± 0.3 (6.8–8.7) μm length, 7.2 0.2 (6.7–7.7) width 6.5 0.4 (5.8–7.7) thickness. Two polar capsules,...
Fish microbiota are intrinsically linked to health and fitness, but they highly variable influenced by both biotic abiotic factors. Water temperature particularly limits bacterial adhesion growth, impacting microbial diversity infections on the skin gills. Aquaculture is heavily affected infectious diseases, especially in warmer months, industry practices often promote stress dysbiosis, leading an increased abundance of potentially pathogenic bacteria. In this regard, fish mucosa extremely...
A new myxosporean, Zschokkella auratis sp. nov., infecting the gall bladder of gilthead seabream Sparus aurata in a southern Portuguese fish farm, is described using microscopic and molecular procedures. Plasmodia mature spores were observed floating free bile. Plasmodia, containing immature spores, characterized by formation branched glycostyles, apparently due to release segregated material contained within numerous cytoplasmic vesicles. Mature ellipsoidal sutural view slightly...
SUMMARY Known life cycles of myxosporean parasites have two hosts, but very few been disclosed, especially in the marine environment. Sphaerospora dicentrarchi Sitjà-Bobadilla and Álvarez-Pellitero, 1992 is a systemic parasite from European seabass, Dicentrarchus labrax (Linnaeus, 1758), highly valuable commercial fish. It affects its health, leading to aquaculture production losses. During 2013 2014, an actinospore survey was conducted total 5942 annelids collected fish farm Algarve Aveiro...
The myxosporean parasite Ceratomyxa diplodae Lubat et al. 1989 sensu Sitjà-Bobadilla & Álvarez-Pellitero, 1993, originally described from the annular seabream Diplodus annularis in Adriatic Sea, has subsequently been reported several other sparid hosts, and also a moronid fish, European seabass Dicentrarchus labrax Mediterranean Sea. Here, molecular identity additional morphological data are given for this infecting gall bladder of D. southern Portuguese fish farm. In bile, disporic...
Myxosporeans are widespread cnidarian parasites that usually parasitize fish as part of their complex life cycle, thus constituting a potential threat for the aquaculture industry. White seabream Diplodus sargus (L.) is commercially valuable sparid reared in Southern European aquacultures. Nonetheless, knowledge on myxosporean infections potentially harming sustainable production this extremely limited. In study, survey was conducted D. specimens two Portuguese farms. Two coelozoic...
Abstract A new species of Myxobolidae, Henneguya cardii n. sp., is described infecting the European seabass Dicentrarchus labrax , a fish high commercial value intensively cultivated in southern Europe. sp. was found bulbus arteriosus and spleen with prevalence infection 13.5%. In heart, it forms irregular whitish plasmodia measuring 1 mm size. Mature myxospores are broadly obovoid frontal view ellipsoidal lateral view, 2 equal caudal appendages. Polar capsules ovoid symmetric, 3–4 polar...
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