Fig. 4
From: Best practice recommendations for the use of external telemetry devices on pinnipeds
Techniques for chemical immobilization and monitoring animals for ETD attachment procedures (Recommendations #5 and 6). a Intramuscular injection of butorphanol and midazolam [96] in a leopard seal at Cape Shirreff using a pole syringe. Photo © DP Costa, 2018, NMFS #19439. b Manual intramuscular injection of tiletamine and zolazepam into a juvenile northern elephant seal at Año Nuevo State Park. Photo © PJ Ponganis, 2019, NMFS #19108. c This photo from the 1990s illustrates field isoflurane anesthesia of a South African fur seal on the northwest cape of South Africa using a portable inhalant gas anesthesia machine [34]. Note that contemporary standards require wearing gloves when handling an animal-unprotected contact does not meet best practice standards. Photo © DP Costa, 2007. d Delivery of chemical immobilization using a CO2-propelled dart injector [46], for initial capture and recovery of a head-mounted archival GPS and dive depth tag. Note the syringe dart with pink stabilizer in the shoulder region of this Steller sea lion [116]. Photo © RD [4], under permit by Rosprirodnadzor (Federal Supervisory Natural Resources Management Service of the Ministry of Natural Resources and Environment of the Russian Federation)