Karl B. Andrée
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View article: Histological and molecular characterization of the digestive system of early weaned juveniles of Arapaima sp. reared in a recirculating aquaculture system
Histological and molecular characterization of the digestive system of early weaned juveniles of Arapaima sp. reared in a recirculating aquaculture system Open
Arapaima spp., the world’s largest scaled freshwater fish, native to the Amazon and Essequibo river basins, are valued in aquaculture for their rapid growth and ornamental appeal. However, reliance on natural breeding and parental care in …
View article: First insight into temporal variation of digestive enzyme activities in flathead grey mullet (Mugil cephalus) during the ongrowing phase
First insight into temporal variation of digestive enzyme activities in flathead grey mullet (Mugil cephalus) during the ongrowing phase Open
Digestive enzymes break down the complex nutrients of food into easily absorbable molecules. Understanding their temporal variation during food transit through the gastrointestinal tract is crucial for developing effective nutritional stra…
View article: Proficiency testing and cross-laboratory method comparison to support standardisation of diatom DNA metabarcoding for freshwater biomonitoring
Proficiency testing and cross-laboratory method comparison to support standardisation of diatom DNA metabarcoding for freshwater biomonitoring Open
DNA metabarcoding of benthic diatoms has been successfully applied for biomonitoring at the national scale and can now be considered technically ready for routine application. However, protocols and methods still vary between and within co…
View article: <i>Vibrio</i> are a potential source of novel colistin-resistance genes in European coastal environments
<i>Vibrio</i> are a potential source of novel colistin-resistance genes in European coastal environments Open
Colistin is a widespread last resort antibiotic for treatment of multidrug-resistant bacteria. The recent worldwide emergence of colistin resistance (Col-R) conferred by mcr-1 in human pathogens has raised concern, but the putative sources…
View article: Depuration of Aliarcobacter butzleri and Malaciobacter molluscorum in Comparison with Escherichia coli in Mussels (Mytilus galloprovincialis) and Oysters (Crassostrea gigas)
Depuration of Aliarcobacter butzleri and Malaciobacter molluscorum in Comparison with Escherichia coli in Mussels (Mytilus galloprovincialis) and Oysters (Crassostrea gigas) Open
Arcobacter-related species are considered emerging food-borne and waterborne pathogens, with shellfish being a suggested reservoir. In a published study that investigated 204 shellfish samples and 476 isolates, the species Arcobacter butzl…
View article: <i>Vibrio</i>are a potential source of novel colistin-resistance genes in European coastal environments
<i>Vibrio</i>are a potential source of novel colistin-resistance genes in European coastal environments Open
Colistin is a widespread last resort antibiotic for treatment of multidrug-resistant bacteria. The recent worldwide emergence of colistin resistance (Col-R) conferred by mcr -1 in human pathogens has raised concern, but the putative source…
View article: Comparative study of the gut microbial communities collected by scraping and swabbing in a fish model: a comprehensive guide to promote non-lethal procedures for gut microbial studies
Comparative study of the gut microbial communities collected by scraping and swabbing in a fish model: a comprehensive guide to promote non-lethal procedures for gut microbial studies Open
In the present study, we propose the use of swabs in non-lethal sampling procedures to collect the mucosa-adhered gut microbiota from the posterior intestine of fish, and therefore, we compare the bacterial communities collected by convent…
View article: Impact of the diet in the gut microbiota after an inter-species microbial transplantation in fish
Impact of the diet in the gut microbiota after an inter-species microbial transplantation in fish Open
View article: Corrigendum: Trophic diversification and parasitic invasion as ecological niche modulators for gut microbiota of whitefish
Corrigendum: Trophic diversification and parasitic invasion as ecological niche modulators for gut microbiota of whitefish Open
[This corrects the article DOI: 10.3389/fmicb.2023.1090899.].
View article: First Insight into Temporal Variation of Digestive Enzyme Activities in Flathead Grey Mullet (Mugil Cephalus) During the Ongrowing Phase
First Insight into Temporal Variation of Digestive Enzyme Activities in Flathead Grey Mullet (Mugil Cephalus) During the Ongrowing Phase Open
View article: Supplementation of gilthead seabream (Sparus aurata) diets with spices as a functional strategy to control excess adiposity through lipid, cholesterol and bile acid metabolism, and to induce an immunomodulatory intestinal regulation
Supplementation of gilthead seabream (Sparus aurata) diets with spices as a functional strategy to control excess adiposity through lipid, cholesterol and bile acid metabolism, and to induce an immunomodulatory intestinal regulation Open
View article: Microbiome study of a coupled aquaponic system: unveiling the independency of bacterial communities and their beneficial influences among different compartments
Microbiome study of a coupled aquaponic system: unveiling the independency of bacterial communities and their beneficial influences among different compartments Open
To understand the microbiome composition and interplay among bacterial communities in different compartments of a coupled freshwater aquaponics system growing flathead grey mullet ( Mugil cephalus ) and lettuces ( Lactuca sativa ), 16S rRN…
View article: Dependence of element composition of bile of freshwater and marine fishes on some abiotic and biotic factors
Dependence of element composition of bile of freshwater and marine fishes on some abiotic and biotic factors Open
Introduction The elemental composition and physical properties of fish bile is a very important marker for ecotoxicological and physiological studies as bile is able to accumulate elements from environmental compartments. In the present st…
View article: Rearing European Eel (Anguilla anguilla) Elvers in a Biofloc System
Rearing European Eel (Anguilla anguilla) Elvers in a Biofloc System Open
European eel (Anguilla anguilla) elvers (initial body weight (BW) = 3 g) were raised in triplicate for 60 days in a biofloc system (BFT) at 21 °C. Data from the current first study evaluating this farming technology indicated that European…
View article: Metapopulation Structure of Two Species of Pikeworm (Triaenophorus, Cestoda) Parasitizing the Postglacial Fish Community in an Oligotrophic Lake
Metapopulation Structure of Two Species of Pikeworm (Triaenophorus, Cestoda) Parasitizing the Postglacial Fish Community in an Oligotrophic Lake Open
In the present study, we estimated the levels of infestation of the main fish species that are hosts for two Triaenophorus species: T. crassus and T. nodulosus. The prevalence of T. crassus and T. nodulosus infestations in the intestine of…
View article: The potential of a combination of pungent spices as a novel supplement in gilthead seabream (Sparus aurata) diets to aid in the strategic use of fish oil in aquafeeds: a holistic perspective
The potential of a combination of pungent spices as a novel supplement in gilthead seabream (Sparus aurata) diets to aid in the strategic use of fish oil in aquafeeds: a holistic perspective Open
This work studied the potential of a combination of pungent spices (capsicum, black pepper, ginger, and cinnamaldehyde) to be used as a supplement in diets of gilthead seabream ( Sparus aurata ; 44.1 ± 4.2 g). During 90 days, fish were fed…
View article: Exploring the application of Corynebacterium glutamicum single cell protein in the diet of flathead grey mullet (Mugil cephalus): effects on growth performance, digestive enzymes activity and gut microbiota
Exploring the application of Corynebacterium glutamicum single cell protein in the diet of flathead grey mullet (Mugil cephalus): effects on growth performance, digestive enzymes activity and gut microbiota Open
The capacity of utilising a single cell protein (SCP) ingredient coming from Corynebacterium glutamicum was assessed on adult grey mullet ( Mugil cephalus ) reared in captive conditions. The experiment was carried out using triplicate grou…
View article: Modulation of gut microbiota and intestinal immune response in gilthead seabream (Sparus aurata) by dietary bile salt supplementation
Modulation of gut microbiota and intestinal immune response in gilthead seabream (Sparus aurata) by dietary bile salt supplementation Open
Given their role in lipid digestion, feed supplementation with bile salts could be an economic and sustainable solution to alterations in adiposity and intestinal inflammation generated by some strategies currently used in aquaculture. An …
View article: Trophic diversification and parasitic invasion as ecological niche modulators for gut microbiota of whitefish
Trophic diversification and parasitic invasion as ecological niche modulators for gut microbiota of whitefish Open
Introduction The impact of parasites on gut microbiota of the host is well documented, but the role of the relationship between the parasite and the host in the formation of the microbiota is poorly understood. This study has focused on th…
View article: The endoparasite Perkinsus olseni affecting the Mediterranean mussels (Mytilus galloprovincialis) in the Italian and Spanish waters: A new possible threat for mussel aquaculture and wild animal population
The endoparasite Perkinsus olseni affecting the Mediterranean mussels (Mytilus galloprovincialis) in the Italian and Spanish waters: A new possible threat for mussel aquaculture and wild animal population Open
Dinoflagellates belonging to the Perkinsus genus are OIE (World Organization for animal Health)-listed pathogens extremely virulent for clams and oysters in many marine ecosystems throughout the world. During the monitoring activities of t…
View article: Duplex electrochemical biosensor for the detection of the tdh and trh virulence genes of Vibrio parahaemolyticus in oysters
Duplex electrochemical biosensor for the detection of the tdh and trh virulence genes of Vibrio parahaemolyticus in oysters Open
View article: A Quick Non-Lethal Method for Early Sorting of Mugil Cephalus Males and Females
A Quick Non-Lethal Method for Early Sorting of Mugil Cephalus Males and Females Open
View article: Bile salt dietary supplementation promotes growth and reduces body adiposity in gilthead seabream (Sparus aurata)
Bile salt dietary supplementation promotes growth and reduces body adiposity in gilthead seabream (Sparus aurata) Open
View article: Evaluating the Functional Properties of Spray-Dried Porcine Plasma in Gilthead Seabream (Sparus aurata) Fed Low Fish Meal Diets
Evaluating the Functional Properties of Spray-Dried Porcine Plasma in Gilthead Seabream (Sparus aurata) Fed Low Fish Meal Diets Open
Blood by-products are an untapped source of high-quality ingredients for aquafeeds, containing a broad variety of cytokines, hormones, growth factors, proteins, bioactive peptides, and amino acids. The effects of the spray-dried porcine pl…
View article: DHA-enrichment of live and compound feeds influences the incidence of cannibalism, digestive function, and growth in the neotropical catfish Pseudoplatystoma punctifer (Castelnau, 1855) during early life stages
DHA-enrichment of live and compound feeds influences the incidence of cannibalism, digestive function, and growth in the neotropical catfish Pseudoplatystoma punctifer (Castelnau, 1855) during early life stages Open
View article: LIFE MIGRATOEBRE: Migratory Fish Recovery and Improved Management in the Final Stretch of the Ebre River (Catalonia, NE Iberian Peninsula)
LIFE MIGRATOEBRE: Migratory Fish Recovery and Improved Management in the Final Stretch of the Ebre River (Catalonia, NE Iberian Peninsula) Open
The aim of this project is to promote the recovery of ecological connectivity within 10–20 years in the lower Ebre River and Delta, and a healthy and sustainable population of diadromous fish, including European sturgeon (Acipenser sturio)…
View article: Trophic diversification and parasitic invasion as ecological niche modulators for gut microbiota of a sympatric pair of whitefish
Trophic diversification and parasitic invasion as ecological niche modulators for gut microbiota of a sympatric pair of whitefish Open
The impact of parasites on gut microbiota of the host is well documented, but the role of the relationship between the parasite and the host in the formation of the microbiota is poorly understood. Using 16S amplicon sequencing and newly d…
View article: Identification of New CTX Analogues in Fish from the Madeira and Selvagens Archipelagos by Neuro-2a CBA and LC-HRMS
Identification of New CTX Analogues in Fish from the Madeira and Selvagens Archipelagos by Neuro-2a CBA and LC-HRMS Open
Ciguatera Poisoning (CP) is caused by consumption of fish or invertebrates contaminated with ciguatoxins (CTXs). Presently CP is a public concern in some temperate regions, such as Macaronesia (North-Eastern Atlantic Ocean). Toxicity analy…
View article: Different Fish Meal and Fish Oil Dietary Levels in European Sea Bass: Welfare Implications After Acute Confinement Stress
Different Fish Meal and Fish Oil Dietary Levels in European Sea Bass: Welfare Implications After Acute Confinement Stress Open
To provide practical feeding management guidelines preceding a stressful episode during farming practices, European sea bass juveniles (initial weight: 72.3 g) were fed for 60-days different fish meal (FM) and fish oil (FO) dietary levels …
View article: Electrochemical biosensor for the dual detection of Gambierdiscus australes and Gambierdiscus excentricus in field samples. First report of G. excentricus in the Balearic Islands
Electrochemical biosensor for the dual detection of Gambierdiscus australes and Gambierdiscus excentricus in field samples. First report of G. excentricus in the Balearic Islands Open