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Spawning adult burbot lota lota from Moyie Lake, B.C. https://images.squarespace-cdn.com/content/v1/55ae597ee4b005d752709f24/1633963837493-RS5C61CNAKEGHBZZ6Y18/Trojan.jpg Projects https://images.squarespace-cdn.com/content/v1/55ae597ee4b005d752709f24/1678994005254-ES02VOE0ZK1OIDWYS5NF/Whitefish+results.png Projects https://images.squarespace-cdn.com/content/v1/55ae597ee4b005d752709f24/1729357526556-GLIVCAY7SRL0W2ZODY49/john_hargrove_bull_trout.jpg Projects - Lead author John Hargrove with Bull Trout https://images.squarespace-cdn.com/content/v1/55ae597ee4b005d752709f24/1745511927965-YH109I01S5RPMIKP0MNM/Hargrove+YCT.jpg Projects https://images.squarespace-cdn.com/content/v1/55ae597ee4b005d752709f24/1437580201492-8LTKROKYJADDTNIQC0Z6/GSI.jpg Projects https://images.squarespace-cdn.com/content/v1/55ae597ee4b005d752709f24/1443125649149-9F3YDKY8CL0YAH7XFJ55/shoshone+sculpin2.jpg Projects 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Delomas Abstract Triploidy can occur naturally or be induced in fish and shellfish during artificial propagation in order to produce sterile individuals. Fisheries managers often stock these sterile triploids as a means of improving angling opportunities without risking unwanted reproduction of the stocked fish. Additionally, the rearing of all‐triploid individuals has been suggested as a means to reduce the possibility of escaped aquaculture fish interbreeding with wild populations. Efficient means of determining if an individual is triploid or diploid are therefore needed both to monitor the efficacy of triploidy‐inducing treatments and, when sampling fish from a body of water that has a mixture of diploids and triploids, to determine the ploidy of a fish prior to further analyses. Currently, ploidy is regularly measured through flow cytometry, but this technique typically utilizes a fresh blood sample. This study presents an alternative, cost‐effective method of determining ploidy by analysing amplicon‐sequencing data for biallelic single‐nucleotide polymorphisms (SNPs). For each sample, heterozygous genotypes are identified and the likelihoods of diploidy and triploidy are calculated based on the read counts for each allele. The accuracy of this method is demonstrated using triploid and diploid brook trout (Salvelinus fontinalis) genotyped with a panel of 234 SNPs and Chinook salmon (Oncorhynchus tshawytscha) genotyped with a panel of 298 SNPs following the GT‐seq methodology of amplicon sequencing. https://images.squarespace-cdn.com/content/v1/55ae597ee4b005d752709f24/1628382862644-81LVZY34FQ5GYRIAR03C/spawning+YCT.jpg News https://images.squarespace-cdn.com/content/v1/55ae597ee4b005d752709f24/1628948012833-QGUHTQGAOVDC3PGYAYHS/steelhead+spawning.jpg News https://images.squarespace-cdn.com/content/v1/55ae597ee4b005d752709f24/1665332277241-G0DJB4YAPBVVSFMCR56L/Coykendall+et+al+2022.png News • We provide evidence that Parentage Based Tagging based abundance estimates are more accurate than PIT tag-based estimates, likely due to shedding or mortality that occurs with PIT tags. This is especially topical since Chinook Salmon Oncorhynchus tshawytscha abundances have decreased dramatically in recent years and managers have struggled to maintain small fisheries while ensuring hatchery brood stock needs are met. • Abundance estimates of hatchery fish are crucial for maintaining small fisheries while meeting brood stock needs. • We compare abundance estimates from Passive Integrated Transponders (PIT) tag detection versus Parentage Based Tagging (PBT). • PBT based abundance estimates provide greater accuracy, because it is genetics-based, there is no tag shedding and no tag related mortality. • PBT based abundance estimates provide greater precision due to higher tag rates. https://images.squarespace-cdn.com/content/v1/55ae597ee4b005d752709f24/1437579245513-HVTCA8PX1SXSC4IU80NQ/PBT1.png News https://images.squarespace-cdn.com/content/v1/55ae597ee4b005d752709f24/1437830161976-THZWL45NIOW4LEK8V4ZG/image-asset.jpeg News http://www.eaglefishgeneticslab.com/fishgen daily 0.75 2018-08-08 https://images.squarespace-cdn.com/content/v1/55ae597ee4b005d752709f24/1437690648105-KKI9PU9YAXUWIMQ3J1I8/image-asset.png FishGen https://images.squarespace-cdn.com/content/v1/55ae597ee4b005d752709f24/1437521643530-WWVWBQT41AN58OBTI734/image-asset.png FishGen https://www.fishgen.net/ http://www.eaglefishgeneticslab.com/contact daily 0.75 2025-04-24 https://images.squarespace-cdn.com/content/v1/55ae597ee4b005d752709f24/1437507911425-HXCMO17EOBXMOMWFF5OM/eagle+sunrise+001.PNG Contact http://www.eaglefishgeneticslab.com/welcome daily 1.0 2015-09-21 https://images.squarespace-cdn.com/content/v1/55ae597ee4b005d752709f24/1437864287688-ZQAGIX91QODSMDEWCGC3/image-asset.png Eagle Fish Genetics Lab http://www.eaglefishgeneticslab.com/about daily 0.75 2021-05-27 https://images.squarespace-cdn.com/content/v1/55ae597ee4b005d752709f24/1437592379091-A2HKTT1KF27CLST4FHEP/image-asset.png About http://www.eaglefishgeneticslab.com/publications-1 daily 0.75 2015-07-21 http://www.eaglefishgeneticslab.com/home daily 0.75 2015-10-21 https://images.squarespace-cdn.com/content/v1/52a74d9ae4b0253945d2aee9/1535394867157-MTQAOAQPKWQ68DDY1HTW/tumblr_mn8b8sLRb61rkz363o1_1280.jpg Home https://images.squarespace-cdn.com/content/v1/52a74d9ae4b0253945d2aee9/1535394848185-CGDDU4QCIRSO4U1270H3/image-asset.jpeg Home https://images.squarespace-cdn.com/content/v1/52a74d9ae4b0253945d2aee9/1391287286405-92Z4A4R3T2ZSZAKNVS9V/image-asset.jpeg Home - Transient