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Hatchery Strain Contributions to Emerging Wild Lake Trout Populations in Lake Huron

Overview of attention for article published in Journal of Heredity, June 2018
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Title
Hatchery Strain Contributions to Emerging Wild Lake Trout Populations in Lake Huron
Published in
Journal of Heredity, June 2018
DOI 10.1093/jhered/esy029
Pubmed ID
Authors

Kim Scribner, Iyob Tsehaye, Travis Brenden, Wendylee Stott, Jeannette Kanefsky, James Bence

Abstract

Recent assessments indicate the emergence of naturally produced lake trout (Salvelinus namaycush) recruitment throughout Lake Huron in the North American Laurentian Great Lakes (>50% of fish <7 yrs). Because naturally produced fish derived from different stocked hatchery strains are unmarked, managers cannot distinguish strains contributing to natural recruitment. We used 15 microsatellite loci to identify strains of naturally produced lake trout (N=1567) collected in assessment fisheries during early (2002-2004) and late (2009-2012) sampling periods. Individuals from 13 American and Canadian hatchery strains (N=1143) were genotyped to develop standardized baseline information. Strain contributions were estimated using a Bayesian inferential approach. Deviance information criteria was used to compare models evaluating strain contributions at different spatial and temporal scales. The best performing models were the most complex models, suggesting that hatchery strain contributions to naturally produced lake trout varied spatially among management districts and temporally between time periods. Contributions of Seneca strain lake trout were consistently high across most management districts, with contributions increasing from early to late time periods (estimates ranged from 52-94% for the late period across eight of nine districts). Strain contributions deviated from expectations based on historical stocking levels, indicating strains differed with respect to survival, reproductive success, and/or dispersal. Knowledge of recruitment levels of strains stocked in different management districts, and how strain-specific recruitment varies temporally, spatially, and as a function of local or regional stocking is important to prioritize strains for future stocking and management of the transition process from primarily hatchery to naturally produced stocks.

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Geographical breakdown

Country Count As %
Unknown 23 100%

Demographic breakdown

Readers by professional status Count As %
Student > Master 6 26%
Other 5 22%
Researcher 3 13%
Student > Bachelor 2 9%
Student > Ph. D. Student 2 9%
Other 2 9%
Unknown 3 13%
Readers by discipline Count As %
Agricultural and Biological Sciences 10 43%
Environmental Science 6 26%
Unspecified 1 4%
Biochemistry, Genetics and Molecular Biology 1 4%
Earth and Planetary Sciences 1 4%
Other 0 0%
Unknown 4 17%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 27 March 2019.
All research outputs
#15,539,088
of 23,094,276 outputs
Outputs from Journal of Heredity
#1,243
of 1,552 outputs
Outputs of similar age
#208,387
of 328,045 outputs
Outputs of similar age from Journal of Heredity
#11
of 15 outputs
Altmetric has tracked 23,094,276 research outputs across all sources so far. This one is in the 22nd percentile – i.e., 22% of other outputs scored the same or lower than it.
So far Altmetric has tracked 1,552 research outputs from this source. They typically receive more attention than average, with a mean Attention Score of 9.8. This one is in the 12th percentile – i.e., 12% of its peers scored the same or lower than it.
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We're also able to compare this research output to 15 others from the same source and published within six weeks on either side of this one. This one is in the 6th percentile – i.e., 6% of its contemporaries scored the same or lower than it.