2026-10-14T15:54:12Z https://api.figshare.com/v2/oai

oai:figshare.com:article/33968279 2026-09-22T17:41:36Z category_13 category_272 category_39 category_734 category_69 portal_5 item_type_3 month_year_09_2026

<p>Genetic statistics for Texas samples by year.</p> Sydney P. Harned (25091345) Jamie L. Mankiewicz (25091348) Russell J. Borski (5106179) John Godwin (211226) Martha O. Burford Reiskind (24453239) Genetics Environmental Sciences not elsewhere classified Ecology Biological Sciences not elsewhere classified Inorganic Chemistry temporal population structure southern flounder (< southeast united states representation genome sequencing population genetic structure paralichthys lethostigma </ detected significant variance complex life histories capture temporal dynamics year genetic data valuable flatfish species understanding population structure effective fisheries management div >< p north carolina populations north carolina declining populations atlantic populations year sampling variable recruitment recruitment patterns may result marine fishes larval dispersal important species findings highlight distinct stocks close proximity case study better understanding <div><p>Understanding population structure is critical for effective fisheries management in species with complex life histories and variable recruitment. Southern flounder (<i>Paralichthys lethostigma</i>) is a valuable flatfish species with declining populations in the Southeast United States. Improved management may depend on a better understanding of fine-scale and temporal population genetic structure in this region; however, such structure remains poorly characterized. To address our lack of understanding of the spatial and temporal population structure of this important species, we used double digest reduced-representation genome sequencing (ddRADSeq) on juveniles from estuaries in North Carolina and Texas between 2014 and 2023. We found significant genetic differentiation between the Gulf of Mexico and Atlantic populations, supporting the management of these regions as distinct stocks. By contrast, we detected significant variance in genetic structure within Texas and North Carolina populations that was not consistent across sampling years between estuaries in close proximity. The population genetic structure of southern flounder suggests significant, temporally variable genetic differences within estuarine locations that may result from variation in larval dispersal and recruitment patterns. Our findings highlight the value of integrating fine-scale, multi-year genetic data to capture temporal dynamics and avoid misleading conclusions based on single-year or broad-scale sampling.</p></div> 2026-09-22T17:41:19Z Dataset Dataset 10.1371/journal.pone.0348919.t001 https://figshare.com/articles/dataset/_p_Genetic_statistics_for_Texas_samples_by_year_p_/33968279 CC BY 4.0