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Test of the feasibility and effects of long-term intramuscular implantation of archival tags in pelagic fishes using scale model tags and captive juvenile yellowfin tuna (Thunnus albacares)
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1997
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Series: Administrative Report H ; 97-11
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Description:Electronic archival tags capable of measuring and storing (for up to 12 years) data on ambient light level, a fish's depth, and water temperature (from which geographic positions can be estimated) are now commercially available. Although many of the engineering problems have been surmounted, long-term (months to years) tag attachment methods remain problematic for tunas (Thunnus spp.) and especially billfishes (Istiophoridae and Xiphiidae) where large individuals (> 200 kg body mass) can be difficult to restrain or safely remove from the water. Intramuscular placement of archival tags in these fishes could be a desirable method of attachment. Therefore, we tested the feasibility of long-term intramuscular implantation of archival tags in large pelagic fishes by placing stainless steel scale model tags into juvenile yellowfin tuna (Thunnus albacares) held in shoreside tanks. We found model archival tags can be easily implanted within the muscle, remain near the body surface as the fish grow, and can be carried for 10 months without causing infection or adverse tissue reactions.
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Rights Information:Public Domain
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