Body-area networks (BAN) are used in applications such as smart health monitoring, elderly care and biotelemetry. In the bio telemetric system decisive component is wearable antenna that aid off body communication. work undertaken, circularly polarized rectangular patch integrated with microwave band pass filter (BPF) circuit realized using fourth order hairpin line resonators. The filtering op...

The implantation of a biotelemetry transmitter for core body temperature (T(c)) and motor activity (MA) measurements is hypothesized to have effects on growth and circadian rhythmicity depending on animal body-to-transmitter (B:T) size ratio. This study examined the impact of transmitter implantation (TM) on body weight, food intake (FI), water intake (WI), and circadian T(c) and MA rhythms in ...

The influence of body mass (M(b)) on the physiology of large, adult fish is poorly understood, in part because of the logistical difficulties of studying large individuals. For the first time, this study quantified the influence of M(b) on the resting heart rate (f(H)), blood properties and organ masses of adults of a large-growing fish species, the Chinook salmon (Oncorhynchus tshawytscha). Su...

A highly efficient ultrasonic biotelemetry system would be desired to the ocean having a high underwater ambient noise that is especially from the temperate zone to the tropics. The four parameters were defined as the estimated factors for pinger system, long distance transmitting, battery life, pinger size and ability of recognition. The four parameters of the pinger were analyzed and investig...

Billions of songbirds migrate between continents each year, but we have yet to obtain enough information on in-flight physiology and energetics to fully understand the migratory behavior of any one species. New World Catharus thrushes are common nocturnal migrants amenable to biotelemetry, allowing us to measure physiological parameters during migratory flight in the wild. Here, we review work ...

Previous animal models of heat stress have been compromised by methodologies, such as restraint and anesthesia, that have confounded our understanding of the core temperature (T(c)) responses elicited by heat stress. Using biotelemetry, we developed a heat stress model to examine T(c) responses in conscious, unrestrained C57BL/6J male mice. Before heat stress, mice were acclimated for >4 wk to ...

Disease ecology studies frequently demand a detailed knowledge of movements and activity patterns of infected animals, base-line data from apparently healthy individuals and/or inter-action rates between hosts. Additionally, some investigations require periodic examinations of hosts and the recovery of dead animals for necropsy. Until quite recently these data have been obtained primarily by li...