Browsing by Author "Sbragaglia, Valerio"
Now showing items 1-20 of 22
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A new colorimetrically-calibrated automated video-imaging protocol for day-night fish counting at the OBSEA coastal cabled observatory
(2013-10-30)
Article
Open AccessField measurements of the swimming activity rhythms of fishes are scant due to the difficulty of counting individuals at a high frequency over a long period of time. Cabled observatory video monitoring allows such a sampling ... -
A new laboratory radio frequency identification (RFID) system for behavioural tracking of marine organisms
(2011-10-11)
Article
Open AccessRadio frequency identification (RFID) devices are currently used to quantify several traits of animal behaviour with potential applications for the study of marine organisms. To date, behavioural studies with marine ... -
Annual rhythms of temporal niche partitioning in the Sparidae family are correlated to different environmental variables
(Nature, 2019-02-08)
Article
Open AccessThe seasonal timing of recurring biological processes is essential for organisms living in temperate regions. While ample knowledge of these processes exists for terrestrial environments, seasonal timing in the marine ... -
Automatic fish counting from underwater video images: performance estimation and evaluation
(2016)
Conference report
Open AccessCabled observatories offer new opportunities to monitor species abundances at frequencies and durations never attained before. When nodes bear cameras, these may be transformed into the first sensor capable of quantifying ... -
Automatic fish counting from underwater video images: performance estimation and evaluation
(SARTI, 2016)
Conference lecture
Open AccessCabled observatories offer new opportunities to monitor species abundances at frequencies and durations never attained before. When nodes bear cameras, these may be transformed into the first sensor capable of quantifying ... -
Biological rhythms in the Norway lobster (Nephrops Norvegicus L.) : Ecological modulation and genetic basis = Ritmos biológicos en la cigala (Nephrops norvegicus L.) : modulación ecológica y bases genéticas
(Universitat Politècnica de Catalunya, 2015-07-20)
Doctoral thesis
Open AccessNephrops norvegicus is an important fishery resource for Europe. Its rhythmic burrowing behavior is strictly related to catchability. Here I studied such behavior under laboratory conditions. I investigated the combined ... -
Citizen Science and marine community monitoring by video-cabled observatories: the OBSEA Citizen Science Project
(IEEEXPLORE, 2013)
Conference report
Restricted access - publisher's policyThe Citizen Science refers to the public participation in scientific activities and research projects related with environment and its biodiversity are taking advantage of new technologies such us internet and mobile ... -
Daily activity rhythms in temperate coastal fishes: insights from cabled observatory video monitoring
(2013-07-12)
Article
Open AccessThe rhythmic behavior of marine species generates uncertainties in population and biodiversity assessments if the frequency of sampling is too low and irregular over time. Few attempts have been made to link community ... -
Light and current generation system for measuring the behaviour of the Norway lobster
(2015-06-01)
Article
Open AccessPatterns of how the Norway lobster (Nephrops norvegicus L.) emerges from its burrow in relation to sea currents at different times of the day-night cycles is currently unknown. The degree of influence of these variables ... -
Long term monitoring of day-night fish assemblage at OBSEA
(2013)
Conference report
Open AccessHigh frequency monitoring and the reducing of disturbance of sampling activities have a vital importance in the study of fish communities. The aim of this paper is to describe temporal patterns in habitat utilization ... -
Long-term monitoring of diel and seasonal rhythm of dentex dentex at an artificial reef
(Frontiers Media, 2022-03-18)
Article
Open AccessBehavioral rhythms are a key aspect of species fitness, since optimize ecological activities of animals in response to a constantly changing environment. Cabled observatories enable researchers to collect long-term biological ... -
Monitoring species in artificial reefs using acoustic communications
(2011)
Conference report
Open AccessThe purpose of this work is to study and evaluate the limitations of using acoustic communications in the vicinity of artificial reefs. By placing hydrophones and transmitters in different strategic locations we have ... -
Monitoring species in artificial reefs using acoustic communications
(SARTI, 2011)
Article
Open Access -
Pilot acoustic tracking study on adult spiny lobsters (Palinurus mauritanicus) and spider crabs (Maja squinado) within an artificial reef
(2015-01)
Article
Open AccessArtificial reef areas can be used for management and conservation of commercially exploited crustacean decapods but their behaviour in these environments is poorly characterised. Acoustic tags were used to study the behaviour ... -
Seasonal changes in coastal fish assemblages by multiparametric video-observatory monitoring
(2017)
Conference report
Open AccessMutiparametric cable video-observatories can offer a great opportunity for the simultaneous monitoring of biotic and abiotic components of an ecosystem, responding to the monitoring strategic needs of the EU Marine ... -
The use of coastal cabled video-observatories to monitor seasonal changes in shallow water fish community
(IEEEXPLORE, 2013)
Conference report
Restricted access - publisher's policy -
Tracking fish abundance by underwater image recognition
(Nature, 2018-09-13)
Article
Open AccessMarine cabled video-observatories allow the non-destructive sampling of species at frequencies and durations that have never been attained before. Nevertheless, the lack of appropriate methods to automatically process video ... -
Using ORB, BoW and SVM to identify and track tagged Norway lobster Nephrops norvegicus (L.)
(SARTI, 2016)
Conference lecture
Open AccessSustainable capture policies of many species strongly depend on the understanding of their social behaviour. Nevertheless, the analysis of emergent behaviour in marine species poses several challenges. Usually animals ... -
Versatile application of RFID technology to commercial and laboratory research contexts: fresh fish supply-chain and behavioural tests
(2011)
Conference report
Open AccessRFID is an innovative information technology that potentially allows attaining massive amounts of data. It can be used for traceability of goods trough the different stages of the production chain, as well as in behavioural ... -
Versatile Application of rfid technology to commercial and laboratory research contexts: fresh fish supply-chain and behavioural tests
(SARTI, 2011)
Article
Open Access
