A specific study has been carried out for the first time to investigate the homing capability and daily home range of the spiny lobster Palinurus elephas by means of ultrasonic telemetry. Nine lobsters collected in the Capo Gallo -- Isola delle Femmine marine protected area (northwestern Sicily, central Mediterranean) were tagged with miniaturized transmitters and released at a single site inside the protected area. The lobsters were monitored with the purpose of calculating their horizontal and vertical positions, analysing their movement patterns to assess their homing capability, and calculating their daily home range. Five lobsters moved back close to the capture sites within the first 20 hours after release ('homed'). The remaining four lobsters 'relocated' to a different refuge. Homed lobsters had a larger home range than relocated lobsters. This study provides the first description of a homing pattern with high spatial resolution in the wild European spiny lobster as inferred by ultrasonic telemetry.
Uno studio specifico è stato effettuato per la prima volta con l'obiettivo di valutare la capacità di homing e l'home range giornaliero dell'aragosta comune Palinurus elephas attraverso l'uso della telemetria ultrasonica. Nove aragoste catturate all'interno dell'area marina protetta di "Capo Gallo -- Isola delle Femmine" (Sicilia nordoccidentale, Mediterraneo centrale) sono state marcate con trasmettitori miniaturizzati e rilasciate in un unico sito all'interno dell'area protetta. Le aragoste sono state monitorate con l'obiettivo di calcolare le loro posizioni orizzontali e verticali, analizzarne gli spostamenti per valutare la loro capacità di homing, calcolarne l'home range giornaliero. Cinque aragoste sono tornate indietro al sito di cattura entro le prime 20 ore dal rilascio ("homed"). Le quattro rimanenti si sono spostate verso un rifugio differente ("relocated"). Le aragoste "homed" hanno mostrato un home range più ampio rispetto alle aragoste "relocated". Questo studio fornisce la prima descrizione dell'homing con una risoluzione spaziale elevata per individui selvatici di aragosta comune grazie all'impiego di tecniche di telemetria ultrasonica.
Homing and home range of european spiny lobster, Palinurus elephas (Decapoda, Palinuridae) acoustically tracked
GIACALONE VM;ZENONE A;BADALAMENTI F;BUFFA G;GRISTINA M;PIPITONE C;D'ANNA G
2019
Abstract
A specific study has been carried out for the first time to investigate the homing capability and daily home range of the spiny lobster Palinurus elephas by means of ultrasonic telemetry. Nine lobsters collected in the Capo Gallo -- Isola delle Femmine marine protected area (northwestern Sicily, central Mediterranean) were tagged with miniaturized transmitters and released at a single site inside the protected area. The lobsters were monitored with the purpose of calculating their horizontal and vertical positions, analysing their movement patterns to assess their homing capability, and calculating their daily home range. Five lobsters moved back close to the capture sites within the first 20 hours after release ('homed'). The remaining four lobsters 'relocated' to a different refuge. Homed lobsters had a larger home range than relocated lobsters. This study provides the first description of a homing pattern with high spatial resolution in the wild European spiny lobster as inferred by ultrasonic telemetry.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
