Retention of fin clips and fin and operculum punch marks in rainbow trout
作者机构:South Dakota Department of GameFishand Parks4725 Jackson BoulevardRapid CitySD57702USA South Dakota Department of GameFishand Parks4130 Adventure TrailRapid CitySD57702USA South Dakota Department of GameFishand Parks19619 Trout Loop SpearfishSouth Dakota57783USA
出 版 物:《Aquaculture and Fisheries》 (渔业学报(英文))
年 卷 期:2022年第7卷第6期
页 面:660-663页
主 题:Marking Rainbow trout Oncorhynchus mykiss Fin punch Fin clip Mark retention
摘 要:Fin clips(complete fin removal)or punch marks(stamping of a hole)in fins or operculum are quick and inexpensive methods to identify individuals or groups of *** study evaluated the retention of 6 mm diameter punch marks on the operculum,caudal(upper and lower lobes),dorsal,pelvic,and anal fins,and fin clips on adipose,pectoral,pelvic,dorsal and anal fins of rainbow trout Oncorhynchus mykiss for 279 *** and survival were not significantly different among fish with the different mark types or *** the end of the experiment,100%of adipose clips,97%of pectoral and anal fin clips,and 93%of dorsal clips and pelvic fin clips were *** of punch marks was 57%and 50%for the lower and upper caudal fin lobe locations respectively,23%for the dorsal fin,and 3%for the *** pelvic or anal fin punch marks were identified at the end of the *** differences in retention among the treatment groups did not occur until 125 days post marking,after which all fin clip treatments had significantly greater retention than pelvic and dorsal punch *** 244 days,fin clips outperformed all punch mark locations.