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Retention of Coded Wire Tags in Four Locations in Juvenile Paddlefish
Author(s) -
Fries Joe N.
Publication year - 2001
Publication title -
north american journal of fisheries management
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.587
H-Index - 72
eISSN - 1548-8675
pISSN - 0275-5947
DOI - 10.1577/1548-8675(2001)021<0962:rocwti>2.0.co;2
Subject(s) - rostrum , juvenile , dorsum , dorsal fin , biology , anatomy , fishery , zoology , ecology , genus
One hundred eighty juvenile paddlefish Polyodon spathula (mean total length, 240 mm) were tagged with coded wire tags in either the midrostrum, rostrum tip, dorsal fin, or opercular flap. Mean tagging times were significantly longer ( P ≤ 0.05) for the dorsal fin (19.3 s) and opercular flap (18.4 s) than for the midrostrum (5.1 s) and rostrum tip (6.6 s). Tag retention was checked monthly for 3 months. Mean tag retention for the rostrum tip (94.8%) and midrostrum (92.9%) was significantly higher ( P ≤ 0.05) than that for the opercular flap (86.1%) or dorsal fin (67.4%), and tag retention for the opercular flap was significantly higher ( P ≤ 0.05) than that for the dorsal fin. My results corroborate rostrum tagging locations recommended by the Mississippi Interstate Cooperative Resource Association.