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Posthandling survival and PIT tag retention by alewives—a comparison of gastric and surgical implants

August 1, 2013

We compared survival and tag retention of Alewives Alosa pseudoharengus tagged with PIT tags, using intraperitoneal (IP) surgical implants, gastric implants (GI), and untagged controls held for 38 d. Retention was 100% for IP-tagged Alewives and 98% for GI-tagged implants. No significant difference in survival was observed among any of these groups. These results lend support to the use of PIT telemetry for studying fish passage and migration of anadromous herring. Both methods hold promise for improving estimates of freshwater survival of adult anadromous clupeids; further research should make it also possible to refine estimates of adult marine survival.

Publication Year 2013
Title Posthandling survival and PIT tag retention by alewives—a comparison of gastric and surgical implants
DOI 10.1080/02755947.2013.811130
Authors Theodore Castro-Santos, Volney Voni
Publication Type Article
Publication Subtype Journal Article
Series Title North American Journal of Fisheries Management
Index ID 70045462
Record Source USGS Publications Warehouse
USGS Organization Leetown Science Center