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Sensors 2011, 11(10), 9532-9548; doi:10.3390/s111009532
Article

A New Laboratory Radio Frequency Identification (RFID) System for Behavioural Tracking of Marine Organisms

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Received: 12 September 2011 / Revised: 7 October 2011 / Accepted: 9 October 2011 / Published: 11 October 2011
(This article belongs to the Section Physical Sensors)
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Abstract

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 organisms are rare because of the technical difficulty of propagating radio waves within the saltwater medium. We present a novel RFID tracking system to study the burrowing behaviour of a valuable fishery resource, the Norway lobster (Nephrops norvegicus L.). The system consists of a network of six controllers, each handling a group of seven antennas. That network was placed below a microcosm tank that recreated important features typical of Nephrops’ grounds, such as the presence of multiple burrows. The animals carried a passive transponder attached to their telson, operating at 13.56 MHz. The tracking system was implemented to concurrently report the behaviour of up to three individuals, in terms of their travelled distances in a specified unit of time and their preferential positioning within the antenna network. To do so, the controllers worked in parallel to send the antenna data to a computer via a USB connection. The tracking accuracy of the system was evaluated by concurrently recording the animals’ behaviour with automated video imaging. During the two experiments, each lasting approximately one week, two different groups of three animals each showed a variable burrow occupancy and a nocturnal displacement under a standard photoperiod regime (12 h light:12 h dark), measured using the RFID method. Similar results were obtained with the video imaging. Our implemented RFID system was therefore capable of efficiently tracking the tested organisms and has a good potential for use on a wide variety of other marine organisms of commercial, aquaculture, and ecological interest.
Keywords: RFID; automated video imaging; Nephrops norvegicus; controller; USB communication; marine species; laboratory; burrow emergence; activity rhythms RFID; automated video imaging; Nephrops norvegicus; controller; USB communication; marine species; laboratory; burrow emergence; activity rhythms
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Aguzzi, J.; Sbragaglia, V.; Sarriá, D.; García, J.A.; Costa, C.; Río, J.; Mànuel, A.; Menesatti, P.; Sardà, F. A New Laboratory Radio Frequency Identification (RFID) System for Behavioural Tracking of Marine Organisms. Sensors 2011, 11, 9532-9548.

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