Item talk:Q259890

{

 "USGS Publications Warehouse": {
   "@context": "https://schema.org",
   "@type": "CreativeWork",
   "additionalType": "Conference Paper",
   "name": "Surveillance and status of fish stocks in western Lake Erie, 2008",
   "identifier": [
     {
       "@type": "PropertyValue",
       "propertyID": "USGS Publications Warehouse IndexID",
       "value": "70162065",
       "url": "https://pubs.usgs.gov/publication/70162065"
     },
     {
       "@type": "PropertyValue",
       "propertyID": "USGS Publications Warehouse Internal ID",
       "value": 70162065
     }
   ],
   "inLanguage": "en",
   "datePublished": "2009",
   "dateModified": "2017-04-24",
   "abstract": "The Lake Erie Biological Station has conducted bottom trawl assessments of fish populations in western Lake Erie near East Harbor State Park, Ohio each summer and autumn since 1961. The catches of most age-0 forage fishes in 2008 were less than their 15-year means. Mean densities for five species exceeded the long term mean. Mean density of age-0 white perch Morone americana was more than double last year\u2019s mean and the long-term mean. Densities of both yellow perch Perca flavescens and walleye Sander vitreus were at or above their long term mean. Catches of round goby Neogobius melanostomus (all ages combined) exceeded the previous five years, but were substantially below the species\u2019 13-year (1996-2008) mean. For five species, mean total lengths of age-0 individuals captured in 2008 were greater than their respective 20-year means. During 1988-2007, the frequency of occurrence for yellow perch diet items was highest for benthic invertebrates and zooplankton during the summer and benthic invertebrates in autumn. During summer zooplankton and benthic invertebrates were frequently consumed by white perch. Benthic prey for white perch occurred more frequently in the last 5-10 years.",
   "description": "18 p.",
   "publisher": {
     "@type": "Organization",
     "name": "Great Lakes Fishery Commission"
   },
   "author": [
     {
       "@type": "Person",
       "name": "Bur, Michael T.",
       "givenName": "Michael T.",
       "familyName": "Bur"
     },
     {
       "@type": "Person",
       "name": "Porta, Michael J.",
       "givenName": "Michael J.",
       "familyName": "Porta",
       "affiliation": [
         {
           "@type": "Organization",
           "name": "U.S. Army Corps of Engineers"
         }
       ]
     },
     {
       "@type": "Person",
       "name": "Stapanian, Martin A. mstapanian@usgs.gov",
       "givenName": "Martin A.",
       "familyName": "Stapanian",
       "email": "mstapanian@usgs.gov",
       "identifier": {
         "@type": "PropertyValue",
         "propertyID": "ORCID",
         "value": "0000-0001-8173-4273",
         "url": "https://orcid.org/0000-0001-8173-4273"
       },
       "affiliation": [
         {
           "@type": "Organization",
           "name": "Great Lakes Science Center",
           "url": "https://www.usgs.gov/centers/great-lakes-science-center"
         }
       ]
     },
     {
       "@type": "Person",
       "name": "Ko\u010dovsk\u00fd, Patrick pkocovsky@usgs.gov",
       "givenName": "Patrick",
       "familyName": "Ko\u010dovsk\u00fd",
       "email": "pkocovsky@usgs.gov",
       "identifier": {
         "@type": "PropertyValue",
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         {
           "@type": "Organization",
           "name": "Great Lakes Science Center",
           "url": "https://www.usgs.gov/centers/great-lakes-science-center"
         }
       ]
     },
     {
       "@type": "Person",
       "name": "Edwards, William wedwards@usgs.gov",
       "givenName": "William",
       "familyName": "Edwards",
       "email": "wedwards@usgs.gov",
       "affiliation": [
         {
           "@type": "Organization",
           "name": "Great Lakes Science Center",
           "url": "https://www.usgs.gov/centers/great-lakes-science-center"
         }
       ]
     }
   ],
   "funder": [
     {
       "@type": "Organization",
       "name": "Great Lakes Science Center",
       "url": "https://www.usgs.gov/centers/great-lakes-science-center"
     }
   ],
   "spatialCoverage": [
     {
       "@type": "Place",
       "additionalType": "country",
       "name": "Canada",
       "url": "https://geonames.org/4269037"
     },
     {
       "@type": "Place",
       "additionalType": "country",
       "name": "United States",
       "url": "https://geonames.org/4074035"
     },
     {
       "@type": "Place",
       "additionalType": "unknown",
       "name": "Lake Erie",
       "url": "https://geonames.org/4154543"
     }
   ]
 }

}