Survey of Intersex Occurrence in Largemouth Bass (Micropterus salmoides) from the Upper Illinois River Waterway
Intersex condition (ooctyes in testicular tissue) has been documented in many watersheds among a diverse variety of fishes worldwide. However, few studies have tested for the occurrence of the condition in fishes from rivers of the American Midwest. Midwestern watersheds, such as the Illinois River...
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| Veröffentlicht in: | The American midland naturalist 2016-07, Vol.176 (1), p.158-165 |
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| creator | Fritts, Mark W Deboer, Jason A Fritts, Andrea K Kellock, Kristen A Bringolf, Robert B Casper, Andrew F |
| description | Intersex condition (ooctyes in testicular tissue) has been documented in many watersheds among a diverse variety of fishes worldwide. However, few studies have tested for the occurrence of the condition in fishes from rivers of the American Midwest. Midwestern watersheds, such as the Illinois River Waterway, U.S.A. may provide important new information about the effects of endocrine disrupting chemicals (EDCs) on fishes because of the variety of urban, industrial, and agricultural land uses within the watersheds. A first step in the study of EDCs in any ecosystem is a survey to document the symptoms of EDC exposure, such as intersex condition. Our objective was to test for intersex condition in male largemouth bass Micropterus salmoides in the lower Des Plaines River, an area directly affected by surface runoff and wastewater effluents from the Chicago Metropolitan Area. Histological analysis indicated that testicular oocytes were present in 21 of 51 (41%) largemouth bass sampled and oocyte numbers ranged from 1–25/thin section among intersex individuals. Our study details the severity of intersex in a population of largemouth bass near a major metropolitan area, which represents an important contribution to the understanding of fish reproductive ecology in ecosystems with a history of environmental disturbance and recovery such as the Illinois River Waterway. |
| doi_str_mv | 10.1674/0003-0031-176.1.158 |
| format | Article |
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However, few studies have tested for the occurrence of the condition in fishes from rivers of the American Midwest. Midwestern watersheds, such as the Illinois River Waterway, U.S.A. may provide important new information about the effects of endocrine disrupting chemicals (EDCs) on fishes because of the variety of urban, industrial, and agricultural land uses within the watersheds. A first step in the study of EDCs in any ecosystem is a survey to document the symptoms of EDC exposure, such as intersex condition. Our objective was to test for intersex condition in male largemouth bass Micropterus salmoides in the lower Des Plaines River, an area directly affected by surface runoff and wastewater effluents from the Chicago Metropolitan Area. Histological analysis indicated that testicular oocytes were present in 21 of 51 (41%) largemouth bass sampled and oocyte numbers ranged from 1–25/thin section among intersex individuals. Our study details the severity of intersex in a population of largemouth bass near a major metropolitan area, which represents an important contribution to the understanding of fish reproductive ecology in ecosystems with a history of environmental disturbance and recovery such as the Illinois River Waterway.</description><identifier>ISSN: 0003-0031</identifier><identifier>EISSN: 1938-4238</identifier><identifier>DOI: 10.1674/0003-0031-176.1.158</identifier><identifier>CODEN: AMNAAF</identifier><language>eng</language><publisher>Notre Dame: American Midland Naturalist</publisher><subject>agricultural land ; Animal age determination ; Bass ; Blazers ; Causes of ; Creeks & streams ; ecosystems ; effluents ; Endocrine disruptors ; endocrine-disrupting chemicals ; Fish ; Freshwater bass ; Freshwater fishes ; Hermaphroditism ; Intersex animals ; land use ; Largemouth bass ; males ; Micropterus salmoides ; Notes and Discussion Piece ; Notes and Discussion Pieces ; Oocytes ; Physiological aspects ; rivers ; runoff ; Studies ; surveys ; Testes ; wastewater ; Watersheds ; Waterways</subject><ispartof>The American midland naturalist, 2016-07, Vol.176 (1), p.158-165</ispartof><rights>2016, The American Midland Naturalist</rights><rights>COPYRIGHT 2016 University of Notre Dame, Department of Biological Sciences</rights><rights>Copyright American Midland Naturalist Jul 2016</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-b504t-b6daa7ec4e8b0e8f9dc846ccabb097a66d106af636b7b617a469395c21ccdb4c3</citedby><cites>FETCH-LOGICAL-b504t-b6daa7ec4e8b0e8f9dc846ccabb097a66d106af636b7b617a469395c21ccdb4c3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.jstor.org/stable/pdf/44840278$$EPDF$$P50$$Gjstor$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/44840278$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>314,776,780,799,27903,27904,57996,58229</link.rule.ids></links><search><creatorcontrib>Fritts, Mark W</creatorcontrib><creatorcontrib>Deboer, Jason A</creatorcontrib><creatorcontrib>Fritts, Andrea K</creatorcontrib><creatorcontrib>Kellock, Kristen A</creatorcontrib><creatorcontrib>Bringolf, Robert B</creatorcontrib><creatorcontrib>Casper, Andrew F</creatorcontrib><title>Survey of Intersex Occurrence in Largemouth Bass (Micropterus salmoides) from the Upper Illinois River Waterway</title><title>The American midland naturalist</title><description>Intersex condition (ooctyes in testicular tissue) has been documented in many watersheds among a diverse variety of fishes worldwide. 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Our study details the severity of intersex in a population of largemouth bass near a major metropolitan area, which represents an important contribution to the understanding of fish reproductive ecology in ecosystems with a history of environmental disturbance and recovery such as the Illinois River Waterway.</description><subject>agricultural land</subject><subject>Animal age determination</subject><subject>Bass</subject><subject>Blazers</subject><subject>Causes of</subject><subject>Creeks & streams</subject><subject>ecosystems</subject><subject>effluents</subject><subject>Endocrine disruptors</subject><subject>endocrine-disrupting chemicals</subject><subject>Fish</subject><subject>Freshwater bass</subject><subject>Freshwater fishes</subject><subject>Hermaphroditism</subject><subject>Intersex animals</subject><subject>land use</subject><subject>Largemouth bass</subject><subject>males</subject><subject>Micropterus salmoides</subject><subject>Notes and Discussion 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A</au><au>Fritts, Andrea K</au><au>Kellock, Kristen A</au><au>Bringolf, Robert B</au><au>Casper, Andrew F</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Survey of Intersex Occurrence in Largemouth Bass (Micropterus salmoides) from the Upper Illinois River Waterway</atitle><jtitle>The American midland naturalist</jtitle><date>2016-07-01</date><risdate>2016</risdate><volume>176</volume><issue>1</issue><spage>158</spage><epage>165</epage><pages>158-165</pages><issn>0003-0031</issn><eissn>1938-4238</eissn><coden>AMNAAF</coden><abstract>Intersex condition (ooctyes in testicular tissue) has been documented in many watersheds among a diverse variety of fishes worldwide. However, few studies have tested for the occurrence of the condition in fishes from rivers of the American Midwest. Midwestern watersheds, such as the Illinois River Waterway, U.S.A. may provide important new information about the effects of endocrine disrupting chemicals (EDCs) on fishes because of the variety of urban, industrial, and agricultural land uses within the watersheds. A first step in the study of EDCs in any ecosystem is a survey to document the symptoms of EDC exposure, such as intersex condition. Our objective was to test for intersex condition in male largemouth bass Micropterus salmoides in the lower Des Plaines River, an area directly affected by surface runoff and wastewater effluents from the Chicago Metropolitan Area. Histological analysis indicated that testicular oocytes were present in 21 of 51 (41%) largemouth bass sampled and oocyte numbers ranged from 1–25/thin section among intersex individuals. Our study details the severity of intersex in a population of largemouth bass near a major metropolitan area, which represents an important contribution to the understanding of fish reproductive ecology in ecosystems with a history of environmental disturbance and recovery such as the Illinois River Waterway.</abstract><cop>Notre Dame</cop><pub>American Midland Naturalist</pub><doi>10.1674/0003-0031-176.1.158</doi><tpages>8</tpages></addata></record> |
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| source | Jstor Complete Legacy |
| subjects | agricultural land Animal age determination Bass Blazers Causes of Creeks & streams ecosystems effluents Endocrine disruptors endocrine-disrupting chemicals Fish Freshwater bass Freshwater fishes Hermaphroditism Intersex animals land use Largemouth bass males Micropterus salmoides Notes and Discussion Piece Notes and Discussion Pieces Oocytes Physiological aspects rivers runoff Studies surveys Testes wastewater Watersheds Waterways |
| title | Survey of Intersex Occurrence in Largemouth Bass (Micropterus salmoides) from the Upper Illinois River Waterway |
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