Experimental Infectious Pancreatic Necrosis Virus infection via egg microinjection: effects on survival, behaviour, and early immune response in brook trout (Salvelinus fontinalis) and brook trout × rainbow trout hybrids (S. fontinalis × Oncorhynchus mykiss) DOI
Karolina Duk, P. Schulz, J. Pajdak

и другие.

Research Square (Research Square), Год журнала: 2025, Номер unknown

Опубликована: Май 6, 2025

Abstract Viral infections remain a persistent challenge in salmonid aquaculture, with infectious pancreatic necrosis virus (IPNV) causing substantial economic losses worldwide. Interspecific crossbreeding has been explored as strategy to increase disease resistance, but its effectiveness remains uncertain. In this study, brook trout (Salvelinus fontinalis) and × rainbow hybrids (S. fontinalis Oncorhynchus mykiss) were experimentally infected IPNV via microinjection method compare species-specific responses. Survival was assessed Kaplan-Meier curves Cox models. Behavioural changes, including locomotion, spatial preference, social interactions, analysed automated tracking software. Gene expression of selected immune markers (IL-1β, IL-6, IL-8, TNFα, IFN2, IFNγ, lysozyme type II) quantified RT-qPCR. Growth morphological abnormalities also examined evaluate the physiological effects infection. The survival hybrid embryos decreased during incubation, suggesting increased vulnerability developmental stressors. infection significantly post-hatching mortality, particularly trout. Infection altered behaviour manner: demonstrated erratic movement, avoidance behaviours, reduced interaction, whereas maintained more stable reactive patterns. profiling revealed that presented earlier activation, notably IL-6 without improved survival. These findings indicate interspecific hybridization does not confer consistent resistance viral pathogens. behavioural alterations observed may serve early indicators disease, supporting their potential for real-time health monitoring aquaculture. This study highlights important trade-offs between acceleration adaptation, implications viability fish welfare management.

Язык: Английский

A Comprehensive Review of Quality of Aquaculture Services in Integrated Multi-Trophic Systems DOI Creative Commons
Jorge A. Ruíz-Vanoye, Ocotlán Díaz-Parra, Marco Antonio Márquez-Vera

и другие.

Fishes, Год журнала: 2025, Номер 10(2), С. 54 - 54

Опубликована: Янв. 29, 2025

The concept of Quality Aquaculture Services (QoAS) is inspired by the Service (QoS) principle, originally developed in field networks and telecommunications, where it refers to ability guarantee quality, availability, priority service a communications system. Adapted aquaculture context, QoAS fundamental maximising benefits Integrated Multi-Trophic (IMTA). IMTA has emerged as sustainable approach meet growing global demand for aquatic food products combining species from different trophic levels single system, optimising resource use, improving environmental performance, diversifying production. However, ensuring these complex systems requires implementation advanced technologies monitor, manage, optimise every aspect process. This article presents comprehensive review applied at IMTA, focusing on IoT-based monitoring systems, management algorithms, water recirculation technologies, intelligent automation, biosecurity, data platforms. Our finds that IoT automation-based solutions significantly enhance real-time monitoring, increasing operational efficiency sustainability. Key challenges identified include integration complexity, high costs, technical expertise requirements, but ongoing development modular, user-friendly indicates promising trajectory. highlights transformative role technological innovation providing foundation future research advancements aquaculture.

Язык: Английский

Процитировано

0
Applying deep learning and the ecological home range concept to document the spatial distribution of Atlantic salmon parr (Salmo salar L.) in experimental tanks DOI Creative Commons

S. Kumaran,

Lars Erik Solberg, David Izquierdo-Gómez

и другие.

Scientific Reports, Год журнала: 2025, Номер 15(1)

Опубликована: Фев. 18, 2025

Abstract Measuring and monitoring fish welfare in aquaculture research relies on the use of outcome- (biotic) input-based (e.g., abiotic) indicators (WIs). Incorporating behavioural auditing into this toolbox can sometimes be challenging because sourcing quantitative data is often labour intensive it a time-consuming process. Digitalization process via computer vision artificial intelligence help automate streamline procedure, gather continuous optimisation assist decision-making. The tool introduced study (1) adapts DeepLabCut framework, based machine learning, to obtain pose estimation Atlantic salmon parr under replicated experimental conditions, (2) quantifies spatial distribution through metrics inspired by ecological concepts home range core area, (3) applies inspect variability around feeding. This proof concept demonstrates potential our methodology for automating analysis behaviour relation including detection, variations within between tanks. impact feeding these patterns also briefly outlined, using 5 days as demonstrative case study. approach provide stakeholders with valuable information how their rearing environment small-scale settings used further development technologies measuring future studies.

Язык: Английский

Процитировано

0
Assessment of feeding intensity of Oreochromis niloticus (tilapia) based on improved VGG16 and voice spectrograms DOI
Xiaoping Huang, Xinli Ma, Jing Jin

и другие.

Aquaculture International, Год журнала: 2025, Номер 33(4)

Опубликована: Март 26, 2025

Язык: Английский

Процитировано

0
Experimental Infectious Pancreatic Necrosis Virus infection via egg microinjection: effects on survival, behaviour, and early immune response in brook trout (Salvelinus fontinalis) and brook trout × rainbow trout hybrids (S. fontinalis × Oncorhynchus mykiss) DOI
Karolina Duk, P. Schulz, J. Pajdak

и другие.

Research Square (Research Square), Год журнала: 2025, Номер unknown

Опубликована: Май 6, 2025

Abstract Viral infections remain a persistent challenge in salmonid aquaculture, with infectious pancreatic necrosis virus (IPNV) causing substantial economic losses worldwide. Interspecific crossbreeding has been explored as strategy to increase disease resistance, but its effectiveness remains uncertain. In this study, brook trout (Salvelinus fontinalis) and × rainbow hybrids (S. fontinalis Oncorhynchus mykiss) were experimentally infected IPNV via microinjection method compare species-specific responses. Survival was assessed Kaplan-Meier curves Cox models. Behavioural changes, including locomotion, spatial preference, social interactions, analysed automated tracking software. Gene expression of selected immune markers (IL-1β, IL-6, IL-8, TNFα, IFN2, IFNγ, lysozyme type II) quantified RT-qPCR. Growth morphological abnormalities also examined evaluate the physiological effects infection. The survival hybrid embryos decreased during incubation, suggesting increased vulnerability developmental stressors. infection significantly post-hatching mortality, particularly trout. Infection altered behaviour manner: demonstrated erratic movement, avoidance behaviours, reduced interaction, whereas maintained more stable reactive patterns. profiling revealed that presented earlier activation, notably IL-6 without improved survival. These findings indicate interspecific hybridization does not confer consistent resistance viral pathogens. behavioural alterations observed may serve early indicators disease, supporting their potential for real-time health monitoring aquaculture. This study highlights important trade-offs between acceleration adaptation, implications viability fish welfare management.

Язык: Английский

Процитировано

0