Short communication Reactions of Heaviside’s dolphins to tagging attempts using remotely-deployed suction-cup tags
نویسندگان
چکیده
Mai Sakai* ,‡ , Leszek Karczmarski*, Tadamichi Morisaka & Meredith Thornton Ocean Research Institute, The University of Tokyo, 1-15-1 Minamidai, Nakano-ku, Tokyo 164-8639, Japan Cape Town Office, Mammal Research Institute, Department of Zoology and Entomology, University of Pretoria, P.O. Box 61, Cape Town, 8000 South Africa The Swire Institute of Marine Science and School of Biological Sciences, The University of Hong Kong, Cape d’Aguilar, Shek O, Hong Kong Wildlife Research Center of Kyoto University, JASSO bldg 3F, 2-24 Tanaka-Sekiden-cho, Sakyo-ku, Kyoto 606-8203, Japan
منابع مشابه
Range and Movements of Female Heaviside’s Dolphins (cephalorhynchus Heavisidii), as Determined by Satellite-linked Telemetry
Heaviside’s dolphin (Cephalorhynchus heavisidii) is a coastal delphinid with a limited inshore distribution off the west coast of southern Africa. Knowledge of its habitat usage is an essential precursor to assessing its potential vulnerability to fisheries interactions. Six Heaviside’s dolphins (1 male and 5 females) were fitted with satellitelinked transmitters in 2004, and tracked for up to ...
متن کاملUsing Static Acoustic Monitoring to Describe Echolocation Behaviour of Heaviside’s Dolphins (Cephalorhynchus heavisidii) in Namibia
Static acoustic monitoring is a cost-effective, low-effort means of gathering large datasets on echolocation click characteristics and habitat use by odontocetes. Heaviside’s dolphins (Cephalorhynchus heavisidii) were monitored using an acoustic monitoring unit, the T-POD, in July 2008 at a site of known high abundance for this species in Walvis Bay, Namibia. The T-POD successfully detected cli...
متن کاملImproving attachments of remotely-deployed dorsal fin-mounted tags: tissue structure, hydrodynamics, in situ performance, and tagged-animal follow-up
We recently developed small satellite-linked telemetry tags that are anchored to the dorsal fin with small attachment darts. These tags have been remotely-deployed onto the dorsal fins of smalland medium-sized cetaceans, opening up the potential to monitor the movements of numerous species not previously accessible because they were too large or difficult to capture safely, but too small for ta...
متن کاملAn optical telemetry device to identify which dolphin produces a sound.
A small telemetry device, called a "vocalight," was designed for attachment to a dolphin's head using a suction cup. The vocalight lights up a variable number of light-emitting diodes depending upon the loudness of sounds received at a hydrophone within the suction cup. If vocalights matched for sensitivity are put on each dolphin within a captive group, observers can identify which dolphin pro...
متن کاملImproving Attachments of Non-Invasive (Type III) Electronic Data Loggers to Cetaceans - Year Two Progress Report
APPROACH Our approach is divided into four subtasks: Task 1: Forces and failure modes in suction cup attachments. Define assays to investigate cup failure modes. Task II: Assessing the impact of tags and surface attachments on cetaceans. Using Computational Fluid Dynamics we will assess the drag forces created by various suction cup and tag housing combinations. Task III: Engineered suction cup...
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تاریخ انتشار 2011