Ara es mostren els items 1-20 de 22

    • A new colorimetrically-calibrated automated video-imaging protocol for day-night fish counting at the OBSEA coastal cabled observatory 

      Río Fernandez, Joaquín del; Aguzzi, Jacopo; Costa, C.; Menesatti, Paolo; Sbragaglia, Valerio; Nogueras Cervera, Marc; Sardá Amills, Francesc; Manuel Lázaro, Antonio (2013-10-30)
      Article
      Accés obert
      Field 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 

      Sardà Amills, Francesc; Aguzzi, Jacopo; Sbragaglia, Valerio; Sarriá Gandul, David; García, José Antonio; Costa, Corrado; Río Fernandez, Joaquín del; Manuel Lázaro, Antonio; Menesatti, Paolo (2011-10-11)
      Article
      Accés obert
      Radio 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 

      Sbragaglia, Valerio; Núñez, Jesús D.; Dominoni, Davide; Coco, Salvatore; Fanelli, Emanuela; Azzurro, Ernesto; Marini, Simone; Nogueras Cervera, Marc; Ponti, M.; Río Fernandez, Joaquín del; Aguzzi, Jacopo (Nature, 2019-02-08)
      Article
      Accés obert
      The 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 

      Marini, Simone; Azzurro, Ernesto; Coco, Salvatore; Río Fernandez, Joaquín del; Nogueras Cervera, Marc; Sbragaglia, Valerio; Toma, Daniel; Aguzzi, Jacopo (2016)
      Text en actes de congrés
      Accés obert
      Cabled 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 

      Marini, S.; Azzurro, E.; Coco, S.; Río Fernandez, Joaquín del; Enguídanos, S.; Fanelli, E.; Nogueras Cervera, Marc; Sbragaglia, Valerio; Toma, Daniel; Aguzzi, Jacopo (SARTI, 2016)
      Comunicació de congrés
      Accés obert
      Cabled 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 

      Sbragaglia, Valerio (Universitat Politècnica de Catalunya, 2015-07-20)
      Tesi
      Accés obert
      Nephrops 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 

      Río Fernandez, Joaquín del; Aguzzi, Jacopo; Hidalgo Castro, Alberto; Bghiel, Ikram; Manuel Lázaro, Antonio; Sbragaglia, Valerio; Sardà Amills, Francesc (IEEEXPLORE, 2013)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      The 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 

      Aguzzi, Jacopo; Sbragaglia, Valerio; Santamaria Garcia, Guillermo; Río Fernandez, Joaquín del; Sarda, Francesc; Nogueras Cervera, Marc; Manuel Lázaro, Antonio (2013-07-12)
      Article
      Accés obert
      The 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 

      Sarriá Gandul, David; Sbragaglia, Valerio; Gomáriz Castro, Spartacus; Garcia, José Antonio; Artero Delgado, Carola; Aguzzi, Jacopo; Sardà Amills, Francesc; Manuel Lázaro, Antonio (2015-06-01)
      Article
      Accés obert
      Patterns 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 

      Santamaria, Josep; Aguzzi, Jacopo; Sbragaglia, Valerio; Río Fernandez, Joaquín del; Nogueras Cervera, Marc; Manuel Lázaro, Antonio; Sardá Amills, Francesc (2013)
      Text en actes de congrés
      Accés obert
      High 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 

      Francescangeli, Marco; Sbragaglia, Valerio; Río Fernandez, Joaquín del; Trullols Farreny, Enric; Antonijuan Rull, Josefina; Massana Hugas, Immaculada; Prat Farran, Joana d'Arc; Nogueras Cervera, Marc; Toma, Daniel; Aguzzi, Jacopo (Frontiers Media, 2022-03-18)
      Article
      Accés obert
      Behavioral 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 

      Sbragaglia, Valerio; Sarriá Gandul, David; Molino Minero, Erik; Manuel Lázaro, Antonio; Garcia Benadí, Albert; Rotllant Estelrich, Guiomar; Gisbert Casas, Enric; Sardà Amills, Francesc; Aguzzi, Jacopo (2011)
      Text en actes de congrés
      Accés obert
      The 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 

      Sarriá Gandul, David; Molino Minero, Erik; Rotllan, Guiomar; Manuel Lázaro, Antonio; Aguzzi, Jacopo; Sardà, Francesc; Sbragaglia, Valerio (SARTI, 2011)
      Article
      Accés obert
    • Pilot acoustic tracking study on adult spiny lobsters (Palinurus mauritanicus) and spider crabs (Maja squinado) within an artificial reef 

      Rotllant Estelrich, Guiomar; Aguzzi, Jacopo; Sarriá Gandul, David; Gisbert Casas, Enric; Sbragaglia, Valerio; Río Fernandez, Joaquín del; Simeó, Carles G.; Manuel Lázaro, Antonio; Molino, Erik; Costa, Corrado; Sardà Amills, Francesc (2015-01)
      Article
      Accés obert
      Artificial 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 

      Fanelli, Emmanuela; Sbragaglia, Valerio; Azzurro, Ernesto; Marini, Simone; Río Fernandez, Joaquín del; Toma, Daniel; Aguzzi, Jacopo (2017)
      Text en actes de congrés
      Accés obert
      Mutiparametric 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 

      Sbragaglia, Valerio; Aguzzi, Jacopo; Santamaria, Josep; Manuel Lázaro, Antonio; Río Fernandez, Joaquín del; Nogueras Cervera, Marc; Sardà Amills, Francesc (IEEEXPLORE, 2013)
      Text en actes de congrés
      Accés restringit per política de l'editorial
    • Tracking fish abundance by underwater image recognition 

      Marini, Simone; Fanelli, Emanuela; Sbragaglia, Valerio; Azurro, Ernesto; Río Fernandez, Joaquín del; Aguzzi, Jacopo (Nature, 2018-09-13)
      Article
      Accés obert
      Marine 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.) 

      García del Arco, José Antonio; Masip, David; Sbragaglia, Valerio; Aguzzi, Jacopo (SARTI, 2016)
      Comunicació de congrés
      Accés obert
      Sustainable 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 

      Costa, Corrado; Aguzzi, Jacopo; Menesatti, Paolo; Manuel Lázaro, Antonio; Boglione, Clara; Sarriá Gandul, David; Antonio García, José; Sardá, Francesc; Río Fernandez, Joaquín del; Antonucci, Francesca; Sbragaglia, Valerio; Rampacci, Massimo; D'Ambra, Roberto; Cataudella, Stefano (SARTI, 2011)
      Article
      Accés obert
    • Versatile application of RFID technology to commercial and laboratory research contexts: fresh fish supply-chain and behavioural tests 

      Cataudella, Stefano; Ambra, Roberto D'; Rampacci, Massimo; Sbragaglia, Valerio; Antonucci, Francesca; Río Fernandez, Joaquín del; Costa, Corrado; Aguzzi, Jacopo; Menesatti, Paolo; Manuel Lázaro, Antonio; Boglione, Clara; Sarriá Gandul, David; García, José Antonio; Sardà Amills, Francesc (2011)
      Text en actes de congrés
      Accés obert
      RFID 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 ...