Measuring inter-individual differences in behavioural types of gilthead seabreams in the laboratory using deep learning DOI Creative Commons
Marco Signaroli, Arancha Lana, Martina Martorell-Barceló

et al.

PeerJ, Journal Year: 2022, Volume and Issue: 10, P. e13396 - e13396

Published: May 5, 2022

Deep learning allows us to automatize the acquisition of large amounts behavioural animal data with applications for fisheries and aquaculture. In this work, we have trained an image-based deep algorithm, Faster R-CNN (Faster region-based convolutional neural network), automatically detect track gilthead seabream, Sparus aurata, search individual differences in behaviour. We collected videos using a novel Raspberry Pi high throughput recording system attached experimental arenas. From continuous during assays, acquired labelled total 14,000 images used them, along augmentation techniques, train network. Then, evaluated performance our network at different training levels, increasing number applying augmentation. For every validation step, processed more than 52,000 images, without presence normal altered (i.e., after introduction non-familiar object test explorative behaviour) The final best version network, all augmentation, reached accuracy 92,79% ± 6.78% [89.24-96.34] correct classification 10.25 61.59 pixels [6.59-13.91] fish positioning error. Our based on provides valuable non-invasive tool movements arenas and, trajectories obtained tests, assay types.

Language: Английский

Environmental enrichment in fish aquaculture: A review of fundamental and practical aspects DOI
Pablo Arechavala‐Lopez, Maria J. Cabrera‐Álvarez, Caroline Marques Maia

et al.

Reviews in Aquaculture, Journal Year: 2021, Volume and Issue: 14(2), P. 704 - 728

Published: Oct. 10, 2021

Abstract Environmental enrichment (EE) can improve the welfare of captive fish. Its objective is to provide new sensorial and motor stimulation in order help meet their behavioural, physiological, morphological psychological needs, whilst reducing stress frequency abnormal behaviours. In fish farms, rearing environments are usually designed from a human perspective based on economic requirements, mainly for practical reasons farmer, with little consideration animal welfare. Throughout aquaculture production cycles, many farming operations be stressful fish, EE may not only them cope these events but also overall recent years, increasing interest effects has focussed structural enrichment. However, there other strategies that merit attention (e.g. sensorial, occupational, social dietary enrichment) which farming. Here, we review depth existing literature its wide range farmed species, discussing feasibility potential applications different promote at commercial scale. We present framework address design, validation implementation by industry, taking technical challenges providing

Language: Английский

Citations

128
Environmental enrichment increases aquatic animal welfare: A systematic review and meta‐analysis DOI
Zonghang Zhang, Lijia Gao, Xiumei Zhang

et al.

Reviews in Aquaculture, Journal Year: 2021, Volume and Issue: 14(3), P. 1120 - 1135

Published: Dec. 7, 2021

Abstract With the rapid development of aquaculture and gradual decrease in fishery resources, aquatic animal welfare (AAW) has received increasing attention from protection organisations, government departments, biologists, fish culturists consumers. Although environmental enrichment (EE) can potentially benefit AAW, relevant results are sharply mixed, drivers for these discrepancies largely unclear. In this study, we conducted a series meta‐analyses to overcome knowledge gap. We firstly compiled full data set, consisting 1171 effect sizes 147 studies across 82 species then performed multilevel mixed‐effects model evaluate overall size conduct subsequent meta‐regression analyses. Overall, our showed that animals physically enriched environment had significantly improved AAW compared with their counterparts barren environments. For moderators, specific traits, taxa, stages, types colours strong positive EE effects on AAW. Subsequently, constructed set reran meta‐analysis, yielding substantially similar those obtained using set. Finally, multi‐model inference identify importance ranking potential moderators. Results type, taxon category best moderators direction magnitude These provide insights into possible important implications aquaculture, fisheries, conservation, research aquarium, providing evidence‐based guidance future theories practices.

Language: Английский

Citations

43
Welfare Through Competence: A Framework for Animal-Centric Technology Design DOI Creative Commons
Sarah Webber, Mia Cobb, Jon Charles Coe

et al.

Frontiers in Veterinary Science, Journal Year: 2022, Volume and Issue: 9

Published: June 30, 2022

Digital technologies offer new ways to ensure that animals can lead a good life in managed settings. As interactive enrichment and smart environments appear zoos, farms, shelters, kennels vet facilities, it is essential the design of such be guided by clear, scientifically-grounded understandings what need want, successful improving their wellbeing. The field Animal-Computer Interaction proposes this achieved centering as stakeholders technology design, but there remains for robust methods support interdisciplinary teams placing animals' interests at heart projects. Responding gap, we present Welfare through Competence framework, which grounded contemporary animal welfare science, established practices applied expertise animal-centered design. framework brings together "Five Domains Animal Welfare" model "Coe Individual Competence" model, provides structured approach defining animal-centric objectives refining them course project. In paper, demonstrate how use promote positive range These much-needed methodological advances contribute theoretical foundation debates around possibility practical agenda creating animals.

Language: Английский

Citations

24
Structural enrichment promotes natural behaviour and welfare of captive gilthead seabream broodstock DOI
Ana Rita Oliveira, Maria J. Cabrera‐Álvarez, Florbela Soares

et al.

Applied Animal Behaviour Science, Journal Year: 2024, Volume and Issue: 275, P. 106289 - 106289

Published: May 14, 2024

Language: Английский

Citations

5
Maze design: size and number of choices impact fish performance in cognitive assays DOI Creative Commons
Nick Jones, Daphne Cortese,

Amelia Munson

et al.

Journal of Fish Biology, Journal Year: 2023, Volume and Issue: 103(5), P. 974 - 984

Published: June 30, 2023

Although studies on fish cognition are increasing, consideration of how methodological details influence the ability to detect and measure performance is lagging. Here, in two separate experiments authors compared latency leave start position, make a decision, levels participation success rates (whether entered rewarded chamber as first choice) across different physical designs. Experiments (a) sizes T-mazes, large standard, plus-maze, (b) open choice arenas with either or four doors. Fish T-mazes longer arms took were less likely participate trial than shorter arms. The number options, complexity, maze significantly impacted but did not necessarily impact behavioural measures, that reached chamber. plus-maze had similar latencies box time reach any same-sized T-maze exhibited lower overall success. Similarly, an arena, increasing options - doors potential reward chambers resulted probability There was position closest sides arena resulting enter higher decision Together results allow offer practical suggestions towards optimal design for cognition.

Language: Английский

Citations

12
Habituation with apparatus and group testing improves assessment of fish preferences DOI Creative Commons
Chiara Varracchio,

Francesco Pio Paci,

Cristiano Bertolucci

et al.

Journal of Fish Biology, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 4, 2025

Abstract Preference tests are commonly used to assess fish behavior and cognition in several research fields. This study aimed investigate how perform a preference test involving extended habituation the apparatus, which was expected reduce stress. We contrasted choice between sector of apparatus with natural vegetation, be preferred stimulus, barren sector. Initially, we demonstrated that guppies' for vegetation increased after 5‐day period (Experiment 1). Subsequent experiments systematically modified testing paradigm observe effects on preference. Experiment 2 introduced physical separation sectors facilitate discrete choices, 3 tested groups fish, 4 wild guppies. Only modification impacted scores: guppies showed higher stimulus spent less time central, no‐choice apparatus. Overall, this supports importance methodological details highlights benefits group testing. Researchers should consider these factors when designing evaluate cognitive abilities or behavioral preferences fish. Tailoring paradigms specific goals can improve reliability comparability results, contributing deeper understanding welfare.

Language: Английский

Citations

0
Understanding the role of environment in associative learning of nicotine-induced place preference conditioning in zebrafish DOI
María Paula Faillace,

Leonardo Rocco,

Juan José Ortiz

et al.

Progress in Neuro-Psychopharmacology and Biological Psychiatry, Journal Year: 2025, Volume and Issue: unknown, P. 111242 - 111242

Published: Jan. 1, 2025

Language: Английский

Citations

0
From ocean to cage: evaluating the culture feasibility of Black-spotted croaker (Protonibea diacanthus) DOI Creative Commons
Shubhadeep Ghosh, Gyanaranjan Dash,

Biswajit Dash

et al.

Frontiers in Marine Science, Journal Year: 2025, Volume and Issue: 11

Published: Jan. 7, 2025

Introduction This study evaluates the feasibility of culturing high-value marine fish Protonibea diacanthus in a polyculture system with Indian pompano ( Trachinotus mookalee ) using cage culture setup. The aims to determine growth performance, feed efficiency, and potential P. as candidate species for polyculture. Methods Wild-caught were reared six high-density polyethylene sea cages (Inner Diameter: 6 m; Outer 7 Depth: 4.5 Area: 28.29 m²; Volume: 127.29 m³). Two experimental groups established: Group-1 90 individuals (average weight: 130.15 ± 6.39 g) Group-2 287.80 16.90 g). Each group was divided into three (30 fish/cage) triplicate T. (2,500 fish/cage, average 31.12 1.17 cultured 148 days fed commercial diet (40% crude protein, 10% lipid). Growth indices efficiency analyzed, modeled von Bertalanffy Function (VBGF). Results performance indices, including total length gain, body weight specific rate, significantly higher (P ≤ 0.05). Feed (feed conversion ratio, protein ratio) did not differ between > VBGF modeling estimated asymptotic (L ∞ at 164.21 3.58 cm, (W 44,070.19 2811 g, coefficient (K) 0.30 0.01 yr −1 t₀ -0.005 0.02 yr. index (ϕ’) calculated 1.91, surpassing values reported wild populations. Polyculture affect or utilization Discussion conclusion results indicate that exhibits superior under conditions, high compatibility systems. These findings support viable integration

Language: Английский

Citations

0
Conservation Aquaculture DOI

Douglas Tave

Published: Jan. 1, 2025

Citations

0
Early-life environmental enrichment promotes positive animal welfare for juvenile Atlantic salmon (Salmo salar) in aquaculture research DOI Creative Commons
Pamela M. Prentice,

Mauro Chivite Alcalde,

Petr Císař

et al.

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: Feb. 18, 2025

Language: Английский

Citations

0