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Production of flathead grey mullet (Mugil cephalus) and lettuce 2 (Lactuca sativa) in a coupled aquaponic system under winter conditions The experimental coupled aquaponic system used in this trial is shown in Figure 1. In brief, the system was composed of three replicate aquaponic units within a greenhouse,  being each aquaponic unit an experimental replicate. […]

Impact of the diet in the gut microbiota after an inter-species microbial transplantation in fish Under current experimental conditions, Atlantic salmon were used as donors of intestinal microbiota, whereas gilthead seabream were chosen as recipients. In particular, Atlantic salmon with an initial body weight (BWi) of 55.0 ± 0.1 g (mean ± SD) were purchased from SARL SALMO (Gonneville-Le […]

Fish tracking for automatic detection of reproductive behaviour

Automatic fish detection and tracking for analysis of reproductive behaviours in Senegalese sole (Solea senegalensis) using neural networks and DeepSORT algorithm. The objective of this study was to automate the detection of reproductive behaviours based on captured videos and a machine leraning system, maintained in optimal conditions with a reccirculation system IRTAmar®. The senegale sole […]

A comparison of recirculation aquaculture systems versus biofloc technology culture system for on-growing of fry of Tinca tinca (Cyprinidae) and fry of grey Mugil cephalus (Mugilidae) The IRTAmar® RAS systems, recirculation modules capable of recycling up to 0.5 kg of food witha protein level of 50 % and volumes of 4,500 L per hour, were […]

Trout challenge experimental design Unvaccinated rainbow trout juveniles were purchased from Truchas de Leiza SL (Leiza, Navarra, Spain), and transported to IRTA research facilities in la Ràpita (Tarragona, Spain). Trouts were acclimated during two weeks in a 6 m3 tank connected to a water recirculation system (IRTAmar™). After the end of the acclimation period, all fish (N = 720) were […]

Rainbow trout pathogenic bacterial challenge To investigate whether the replacement of FM by increased levels of BSCP compromised the immune response of rainbow trout juveniles fed experimental diets, an in vivo bacterial challenge with the strain IRTA-17-44 of A. salmonicida subsp. salmonicida was performed at the end of the nutritional period. For this purpose, bacterial suspensions […]

Dominance behaviour in a non-aggressive flatfish Senegalese sole juveniles (~ 45 g) were provided by Stolt Sea Farm (Santiago de Compostela, Spain), different fish from the same batch were used for two successive years to conduct different behavioural tests. Fish were transported from A Coruña, where the facilities of Stolt Sea Farm are located, with […]

Atlanctic salmon bacterial challenge In order to investigate the immunomodulatory properties of the phytogenic compounds against bacterial infection, an experimental bacterial challenge with the strain IRTA-17-44 of A. salmonicida subsp. salmonicida was performed at the end of the nutritional trial. Bacterial suspensions of the selected strain were prepared from a stock stored in glycerol at -80°C. The inoculum was grown […]

Real time data on RAS Having data in real time is a powerful tool for analyzing the behavior of the system and the animals. Knowing the period before and after a certain event does not help to know the causes and how we can program the IRTAmar so that the event does not happen again. […]