Radio-tagging flexible-bodied fish: temporary confinement enhances radio-tag retention

Broadhurst, Ben T., Ebner, Brendan C., and Clear, Rhian C. (2009) Radio-tagging flexible-bodied fish: temporary confinement enhances radio-tag retention. Marine and Freshwater Research, 60 (4). pp. 356-360.

[img] PDF (Published Version) - Published Version
Restricted to Repository staff only

View at Publisher Website:


Animals that occupy holes or squeeze into interstitial spaces often have particularly flexible bodies and can be difficult to tag effectively. The present study evaluated three methods for radio-tagging the cryptic, eel-like fish Gadopsis bispinosus, a species that inhabits interstitial spaces among cobbles and boulders in streams. The three methods were an externally attached radio-tag with a whip antenna, an internally implanted coil radio-tag (internal coil) and an internally implanted radio-tag with an externally exited whip antenna (internal-external). Successful radio-tagging was determined in aquaria trials based on a combination of four indicators: (1) survival; (2) retention of the radio-tag; (3) healing of the surgical incision; and (4) rapid resumption of feeding. Externally attached radio-tags were shed and proved to be unsuitable (100%). Three of nine individuals with internal-external tagging completed the study with regular feeding, healed incisions and retained radio-tags. Conversely, five of nine individuals with internal coils were successful. This included two of three individuals held in either a simple environment for 3 days or for the duration of the trial and one of three individuals held in a complex environment. Temporary confinement following implantation with coil radio-tags offers a viable means of radio-tagging G. bispinosus. Temporary confinement following radio-tagging may also be useful for reducing radio-tag rejection and mortality for other fish species with similar body morphs and habitat use (e. g. eel species and sculpin).

Item ID: 35634
Item Type: Article (Research - C1)
ISSN: 1448-6059
Keywords: interstices, radiotelemetry
Funders: National Action Plan for Salinity and Water Quality (NAP)
Date Deposited: 01 Oct 2014 15:55
FoR Codes: 06 BIOLOGICAL SCIENCES > 0602 Ecology > 060204 Freshwater Ecology @ 100%
SEO Codes: 97 EXPANDING KNOWLEDGE > 970106 Expanding Knowledge in the Biological Sciences @ 100%
More Statistics

Actions (Repository Staff Only)

Item Control Page Item Control Page