||Preliminary Field Verification of Daily Growth Increments in the Lapillar Otoliths of Juvenile Cunners.
Gleason, T. R. ;
Recksiek, C. ;
||Rhode Island Univ., Kingston. Agricultural Experiment Station.;Environmental Research Lab., Narragansett, RI.
||CONTRIB-2426; EPA/600/J-90/466 ; ERLN-X181
Marine biology ;
Narrangansett Bay ;
Sea water ;
Ultraviolet rays ;
Rhode Island ;
Juvenile cunners ;
||Some EPA libraries have a fiche copy filed under the call number shown.
Seventy-five field-captured juvenile cunners Tautogolabrus adspersus were immersed for 2 hours in solution of tetracycline hydrochloride (500mg/L) and monovalent salts nearly isotonic to seawater. After immersion, the 64 surviving cunners were released on an artificial reef in Narragansett Bay, Rhode Island. Eight tetracycline-marked juvenile cunners were recaptured 13-19 days after release. Ultraviolet and bright-field microscopy confirmed the presence of daily growth increments in the lapillar otoliths of five of these recaptured fish. (Copyright (c) 1990 American Fisheries Society.)