Item talk:Q267196

{

 "USGS Publications Warehouse": {
   "@context": "https://schema.org",
   "@type": "Article",
   "additionalType": "Journal Article",
   "name": "Nonlethal tools to identify mass ovarian follicular atresia in Burbot",
   "identifier": [
     {
       "@type": "PropertyValue",
       "propertyID": "USGS Publications Warehouse IndexID",
       "value": "70254721",
       "url": "https://pubs.usgs.gov/publication/70254721"
     },
     {
       "@type": "PropertyValue",
       "propertyID": "USGS Publications Warehouse Internal ID",
       "value": 70254721
     },
     {
       "@type": "PropertyValue",
       "propertyID": "DOI",
       "value": "10.3996/JFWM-22-018",
       "url": "https://doi.org/10.3996/JFWM-22-018"
     }
   ],
   "journal": {
     "@type": "Periodical",
     "name": "Journal of Fish and Wildlife Management",
     "volumeNumber": "13",
     "issueNumber": "2"
   },
   "inLanguage": "en",
   "isPartOf": [
     {
       "@type": "CreativeWorkSeries",
       "name": "Journal of Fish and Wildlife Management"
     }
   ],
   "datePublished": "2022",
   "dateModified": "2024-06-07",
   "abstract": "Skipped spawning, or variation in spawning periodicity, occurs in many annual spawning fish species and is an important consideration for population management. We assessed plasma sex steroid concentrations and measured gonad size and ovarian follicle diameter as metrics to nonlethally identify mass ovarian follicular atresia, which may contribute to skipped spawning in Burbot\u00a0Lota lota. We maintained wild fish in captivity and exposed them to increasing water temperatures during a 3-wk period before the spawning season to induce mass ovarian follicular atresia. We collected ovarian follicles, blood plasma, and gonadal sonograms from fish weekly between January 28, 2018, and March 25, 2018. We histologically analyzed ovarian follicles to confirm stage of maturity. We measured concentrations of plasma sex steroids testosterone (T) and estradiol-17\u03b2 (E2) by radioimmunoassay. We measured gonad diameter and circumference by ultrasonography and ovarian follicle diameter by image analysis. Mean plasma T concentration decreased from 8.94 ng/mL during late vitellogenesis to 1.83 ng/mL during atresia, suggesting that plasma T concentrations may be used to identify mass ovarian follicular atresia. We do not recommend using plasma E2 concentrations to identify mass ovarian follicular atresia because E2 concentrations rapidly decreased during the completion of vitellogenesis and the initiation of atresia in Burbot; therefore, plasma E2 may not accurately identify mass ovarian follicular atresia. Mean gonad diameter measured by ultrasonography decreased from 4.05 cm during late vitellogenesis to 3.65 cm during atresia. Mean diameter of ovarian follicles decreased during the final week of the study, suggesting that ovarian follicle diameter may be used to identify advanced mass ovarian follicular atresia. The nonlethal tools assessed\u2014plasma sex steroid concentrations, ultrasonography, and ovarian follicle diameter\u2014enable fisheries biologists to determine the occurrence and frequency of mass ovarian follicular atresia among Burbot in Lake Roosevelt and may be applied to other Burbot populations.",
   "description": "10 p.",
   "publisher": {
     "@type": "Organization",
     "name": "Allen Press"
   },
   "author": [
     {
       "@type": "Person",
       "name": "McGarvey, Lauren M.",
       "givenName": "Lauren M.",
       "familyName": "McGarvey",
       "affiliation": [
         {
           "@type": "Organization",
           "name": "Montana State University"
         }
       ]
     },
     {
       "@type": "Person",
       "name": "Ilgen, Jason E.",
       "givenName": "Jason E.",
       "familyName": "Ilgen",
       "affiliation": [
         {
           "@type": "Organization",
           "name": "U.S. Fish and Wildlife Service"
         }
       ]
     },
     {
       "@type": "Person",
       "name": "Guy, Christopher S. cguy@usgs.gov",
       "givenName": "Christopher S.",
       "familyName": "Guy",
       "email": "cguy@usgs.gov",
       "identifier": {
         "@type": "PropertyValue",
         "propertyID": "ORCID",
         "value": "0000-0002-9936-4781",
         "url": "https://orcid.org/0000-0002-9936-4781"
       },
       "affiliation": [
         {
           "@type": "Organization",
           "name": "Coop Res Unit Seattle",
           "url": "https://www1.usgs.gov/coopunits/unit/Washington"
         },
         {
           "@type": "Organization",
           "name": "National Research Program - Western Branch",
           "url": "https://www.usgs.gov/centers/arizona-water-science-center"
         },
         {
           "@type": "Organization",
           "name": "Office of the Chief Scientist for Ecosystems",
           "url": "https://www.usgs.gov/associate-chief-information-officer"
         }
       ]
     },
     {
       "@type": "Person",
       "name": "McLellan, Jason G.",
       "givenName": "Jason G.",
       "familyName": "McLellan",
       "affiliation": [
         {
           "@type": "Organization",
           "name": "Fish and Wildlife Department"
         }
       ]
     },
     {
       "@type": "Person",
       "name": "Webb, Molly A. H.",
       "givenName": "Molly A. H.",
       "familyName": "Webb",
       "affiliation": [
         {
           "@type": "Organization",
           "name": "U.S. Fish and Wildlife Service"
         }
       ]
     }
   ],
   "funder": [
     {
       "@type": "Organization",
       "name": "Coop Res Unit Seattle",
       "url": "https://www1.usgs.gov/coopunits/unit/Washington"
     }
   ]
 }

}