Item talk:Q269780
From geokb
{
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"@context": "https://schema.org",
"@type": "Article",
"additionalType": "Journal Article",
"name": "First finding of the amphipod Echinogammarus ischnus and the mussel Dreissena bugensis in Lake Michigan",
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"value": "10.1016/S0380-1330(01)70653-3",
"url": "https://doi.org/10.1016/S0380-1330(01)70653-3"
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],
"journal": {
"@type": "Periodical",
"name": "Journal of Great Lakes Research",
"volumeNumber": "27",
"issueNumber": "3"
},
"inLanguage": "en",
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"datePublished": "2001",
"dateModified": "2022-12-02",
"abstract": "The first finding of the amphipod\u00a0Echinogammarus\u00a0ischnus and the mussel\u00a0Dreissena bugensis\u00a0in Lake Michigan is documented. These two species are widespread and abundant in the lower lakes, but had not yet been reported from Lake Michigan.\u00a0E. ischnus\u00a0is generally considered a warmwater form that is typically associated with hard substrates and\u00a0Dreissena\u00a0clusters in the nearshore zone. Along the eastern shoreline of Lake Michigan, this species was present at rocky, breakwall habitats along the entire north-south axis of the lake. Although not abundant, this species was also found at soft-bottomed sites as deep as 94 m in the southern basin. The finding of this species in deep offshore waters apparently extends the known habitat range for this species in the Great Lakes, but it is found in deep water areas within its native range (Caspian Sea).\u00a0D. bugensis\u00a0was not abundant, but was present in both the southern and northern portions of the lake. Individuals of up to 36 mm in length were collected, indicating that it had probably been present in the lake for 2 or more years. Also presented are depth-defined densities of\u00a0D. polymorpha\u00a0at 37 sites in the Straits of Mackinac in 1997, and densities at up to 55 sites in the southern basin in 1992/93 and 1998/99. Mean densities decreased with increased water depth in both regions. Maximum mean density in the Straits in 1997 was 13,700/m2\u00a0(\u2264 10 m), and maximum density in the southern basin in 1999 was 2,100/m2\u00a0(\u2264 30 m). Mean densities at the \u2264 30-m interval in the southern basin remained relatively unchanged between 1993 and 1999, but increased from 25/m2\u00a0to 1,100/m2\u00a0at the 31 to 50 m interval over the same time period.\u00a0D. polymorpha\u00a0was rare at sites > 50 m. The presence of\u00a0E. ischnus\u00a0and the expected population expansion of\u00a0D. bugensis\u00a0will likely contribute to further foodweb changes in the lake.",
"description": "7 p.",
"publisher": {
"@type": "Organization",
"name": "Elsevier"
},
"author": [
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"@type": "Person",
"name": "Hondorp, Darryl W. dhondorp@usgs.gov",
"givenName": "Darryl W.",
"familyName": "Hondorp",
"email": "dhondorp@usgs.gov",
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"value": "0000-0002-5182-1963",
"url": "https://orcid.org/0000-0002-5182-1963"
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"name": "Great Lakes Science Center",
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"@type": "Person",
"name": "Tuchman, Marc L.",
"givenName": "Marc L.",
"familyName": "Tuchman"
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"@type": "Person",
"name": "Schloesser, Don W.",
"givenName": "Don W.",
"familyName": "Schloesser"
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{
"@type": "Person",
"name": "Nalepa, Thomas F.",
"givenName": "Thomas F.",
"familyName": "Nalepa"
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{
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"name": "Fanslow, David L.",
"givenName": "David L.",
"familyName": "Fanslow"
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"name": "Pothoven, Steve A.",
"givenName": "Steve A.",
"familyName": "Pothoven"
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{
"@type": "Person",
"name": "Fleischer, Guy W.",
"givenName": "Guy W.",
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"name": "United States",
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