Hydroacoustic Estimates of Abundance and Spatial Distribution of Pelagic Prey Fishes in Western Lake Superior
Lake herring ( Coregonus artedi) and rainbow smelt ( Osmerus mordax) are a valuable prey resource for the recovering lake trout ( Salvelinus namaycush) in Lake Superior. However, prey biomass may be insufficient to support the current predator demand. In August 1997, we assessed the abundance and sp...
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| Veröffentlicht in: | Journal of Great Lakes research 2005, Vol.31 (4), p.426-438 |
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| creator | Mason, Doran M. Johnson, Timothy B. Harvey, Chris J. Kitchell, James F. Schram, Stephen T. Bronte, Charles R. Hoff, Michael H. Lozano, Steven J. Trebitz, Anett S. Schreiner, Donald R. Conrad Lamon, E. Hrabik, Thomas |
| description | Lake herring (
Coregonus artedi) and rainbow smelt (
Osmerus mordax) are a valuable prey resource for the recovering lake trout (
Salvelinus namaycush) in Lake Superior. However, prey biomass may be insufficient to support the current predator demand. In August 1997, we assessed the abundance and spatial distribution of pelagic coregonines and rainbow smelt in western Lake Superior by combining a 120 kHz split beam acoustics system with midwater trawls. Coregonines comprised the majority of the midwater trawl catches and the length distributions for trawl caught fish coincided with estimated sizes of acoustic targets. Overall mean pelagic prey fish biomass was 15.56 kg ha
−1 with the greatest fish biomass occurring in the Apostle Islands region (27.98 kg ha
−1), followed by the Duluth Minnesota region (20.22 kg ha
−1), and with the lowest biomass occurring in the open waters of western Lake Superior (9.46 kg ha
−1). Biomass estimates from hydroacoustics were typically 2–134 times greater than estimates derived from spring bottom trawl surveys. Prey fish biomass for Lake Superior is about order of magnitude less than acoustic estimates for Lakes Michigan and Ontario. Discrepancies observed between bioenergetics-based estimates of predator consumption of coregonines and earlier coregonine biomass estimates may be accounted for by our hydroacoustic estimates. |
| doi_str_mv | 10.1016/S0380-1330(05)70274-4 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_19732168</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><els_id>S0380133005702744</els_id><sourcerecordid>19732168</sourcerecordid><originalsourceid>FETCH-LOGICAL-c392t-f4b2ff274b4f3c51a07451ce2d6597cb7492f18decb466fe6b4af018fd433c6f3</originalsourceid><addsrcrecordid>eNqFkE9LAzEQxXNQsFY_gpCT6GE12WT_naTU1goFC1U8hmx2otHtZk2yQr-9aStevczA8N5j3g-hC0puKKH57ZqwkiSUMXJFsuuCpAVP-BEa_Z1P0Kn3H4QwXhXZCG0W28ZZqezgg1F4FudGBvDYajyph66RnQIsuwavexmMbPG98cGZegjGdjvVClr5Fq0rB1s8N_49mk2HX8EHcB1eyk_A66EHZ6w7Q8dath7Of_cYvcxnz9NFsnx6eJxOloliVRoSzetU6_h6zTVTGZWk4BlVkDZ5VhWqLniValo2oGqe5xrymktNaKkbzpjKNRujy0Nu7-zXED8RG-MVtK3sIDYVtCpYSvMyCrODUDnrvQMtehcBuK2gROyAij1QsSMnSCb2QAWPvruDD2KLbwNOeGUgomqMAxVEY80_CT_j4oDl</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>19732168</pqid></control><display><type>article</type><title>Hydroacoustic Estimates of Abundance and Spatial Distribution of Pelagic Prey Fishes in Western Lake Superior</title><source>Elsevier ScienceDirect Journals</source><creator>Mason, Doran M. ; Johnson, Timothy B. ; Harvey, Chris J. ; Kitchell, James F. ; Schram, Stephen T. ; Bronte, Charles R. ; Hoff, Michael H. ; Lozano, Steven J. ; Trebitz, Anett S. ; Schreiner, Donald R. ; Conrad Lamon, E. ; Hrabik, Thomas</creator><creatorcontrib>Mason, Doran M. ; Johnson, Timothy B. ; Harvey, Chris J. ; Kitchell, James F. ; Schram, Stephen T. ; Bronte, Charles R. ; Hoff, Michael H. ; Lozano, Steven J. ; Trebitz, Anett S. ; Schreiner, Donald R. ; Conrad Lamon, E. ; Hrabik, Thomas</creatorcontrib><description>Lake herring (
Coregonus artedi) and rainbow smelt (
Osmerus mordax) are a valuable prey resource for the recovering lake trout (
Salvelinus namaycush) in Lake Superior. However, prey biomass may be insufficient to support the current predator demand. In August 1997, we assessed the abundance and spatial distribution of pelagic coregonines and rainbow smelt in western Lake Superior by combining a 120 kHz split beam acoustics system with midwater trawls. Coregonines comprised the majority of the midwater trawl catches and the length distributions for trawl caught fish coincided with estimated sizes of acoustic targets. Overall mean pelagic prey fish biomass was 15.56 kg ha
−1 with the greatest fish biomass occurring in the Apostle Islands region (27.98 kg ha
−1), followed by the Duluth Minnesota region (20.22 kg ha
−1), and with the lowest biomass occurring in the open waters of western Lake Superior (9.46 kg ha
−1). Biomass estimates from hydroacoustics were typically 2–134 times greater than estimates derived from spring bottom trawl surveys. Prey fish biomass for Lake Superior is about order of magnitude less than acoustic estimates for Lakes Michigan and Ontario. Discrepancies observed between bioenergetics-based estimates of predator consumption of coregonines and earlier coregonine biomass estimates may be accounted for by our hydroacoustic estimates.</description><identifier>ISSN: 0380-1330</identifier><identifier>DOI: 10.1016/S0380-1330(05)70274-4</identifier><language>eng</language><publisher>Elsevier B.V</publisher><subject>coregonines ; Coregonus artedi ; Freshwater ; Hydroacoustics ; lake herring ; Lake Superior ; Osmerus mordax ; rainbow smelt ; Salvelinus namaycush</subject><ispartof>Journal of Great Lakes research, 2005, Vol.31 (4), p.426-438</ispartof><rights>2005 International Association for Great Lakes Research</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c392t-f4b2ff274b4f3c51a07451ce2d6597cb7492f18decb466fe6b4af018fd433c6f3</citedby><cites>FETCH-LOGICAL-c392t-f4b2ff274b4f3c51a07451ce2d6597cb7492f18decb466fe6b4af018fd433c6f3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0380133005702744$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,4010,27900,27901,27902,65306</link.rule.ids></links><search><creatorcontrib>Mason, Doran M.</creatorcontrib><creatorcontrib>Johnson, Timothy B.</creatorcontrib><creatorcontrib>Harvey, Chris J.</creatorcontrib><creatorcontrib>Kitchell, James F.</creatorcontrib><creatorcontrib>Schram, Stephen T.</creatorcontrib><creatorcontrib>Bronte, Charles R.</creatorcontrib><creatorcontrib>Hoff, Michael H.</creatorcontrib><creatorcontrib>Lozano, Steven J.</creatorcontrib><creatorcontrib>Trebitz, Anett S.</creatorcontrib><creatorcontrib>Schreiner, Donald R.</creatorcontrib><creatorcontrib>Conrad Lamon, E.</creatorcontrib><creatorcontrib>Hrabik, Thomas</creatorcontrib><title>Hydroacoustic Estimates of Abundance and Spatial Distribution of Pelagic Prey Fishes in Western Lake Superior</title><title>Journal of Great Lakes research</title><description>Lake herring (
Coregonus artedi) and rainbow smelt (
Osmerus mordax) are a valuable prey resource for the recovering lake trout (
Salvelinus namaycush) in Lake Superior. However, prey biomass may be insufficient to support the current predator demand. In August 1997, we assessed the abundance and spatial distribution of pelagic coregonines and rainbow smelt in western Lake Superior by combining a 120 kHz split beam acoustics system with midwater trawls. Coregonines comprised the majority of the midwater trawl catches and the length distributions for trawl caught fish coincided with estimated sizes of acoustic targets. Overall mean pelagic prey fish biomass was 15.56 kg ha
−1 with the greatest fish biomass occurring in the Apostle Islands region (27.98 kg ha
−1), followed by the Duluth Minnesota region (20.22 kg ha
−1), and with the lowest biomass occurring in the open waters of western Lake Superior (9.46 kg ha
−1). Biomass estimates from hydroacoustics were typically 2–134 times greater than estimates derived from spring bottom trawl surveys. Prey fish biomass for Lake Superior is about order of magnitude less than acoustic estimates for Lakes Michigan and Ontario. Discrepancies observed between bioenergetics-based estimates of predator consumption of coregonines and earlier coregonine biomass estimates may be accounted for by our hydroacoustic estimates.</description><subject>coregonines</subject><subject>Coregonus artedi</subject><subject>Freshwater</subject><subject>Hydroacoustics</subject><subject>lake herring</subject><subject>Lake Superior</subject><subject>Osmerus mordax</subject><subject>rainbow smelt</subject><subject>Salvelinus namaycush</subject><issn>0380-1330</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2005</creationdate><recordtype>article</recordtype><recordid>eNqFkE9LAzEQxXNQsFY_gpCT6GE12WT_naTU1goFC1U8hmx2otHtZk2yQr-9aStevczA8N5j3g-hC0puKKH57ZqwkiSUMXJFsuuCpAVP-BEa_Z1P0Kn3H4QwXhXZCG0W28ZZqezgg1F4FudGBvDYajyph66RnQIsuwavexmMbPG98cGZegjGdjvVClr5Fq0rB1s8N_49mk2HX8EHcB1eyk_A66EHZ6w7Q8dath7Of_cYvcxnz9NFsnx6eJxOloliVRoSzetU6_h6zTVTGZWk4BlVkDZ5VhWqLniValo2oGqe5xrymktNaKkbzpjKNRujy0Nu7-zXED8RG-MVtK3sIDYVtCpYSvMyCrODUDnrvQMtehcBuK2gROyAij1QsSMnSCb2QAWPvruDD2KLbwNOeGUgomqMAxVEY80_CT_j4oDl</recordid><startdate>2005</startdate><enddate>2005</enddate><creator>Mason, Doran M.</creator><creator>Johnson, Timothy B.</creator><creator>Harvey, Chris J.</creator><creator>Kitchell, James F.</creator><creator>Schram, Stephen T.</creator><creator>Bronte, Charles R.</creator><creator>Hoff, Michael H.</creator><creator>Lozano, Steven J.</creator><creator>Trebitz, Anett S.</creator><creator>Schreiner, Donald R.</creator><creator>Conrad Lamon, E.</creator><creator>Hrabik, Thomas</creator><general>Elsevier B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SN</scope><scope>7UA</scope><scope>C1K</scope><scope>F1W</scope><scope>H95</scope><scope>H96</scope><scope>L.G</scope></search><sort><creationdate>2005</creationdate><title>Hydroacoustic Estimates of Abundance and Spatial Distribution of Pelagic Prey Fishes in Western Lake Superior</title><author>Mason, Doran M. ; Johnson, Timothy B. ; Harvey, Chris J. ; Kitchell, James F. ; Schram, Stephen T. ; Bronte, Charles R. ; Hoff, Michael H. ; Lozano, Steven J. ; Trebitz, Anett S. ; Schreiner, Donald R. ; Conrad Lamon, E. ; Hrabik, Thomas</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c392t-f4b2ff274b4f3c51a07451ce2d6597cb7492f18decb466fe6b4af018fd433c6f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2005</creationdate><topic>coregonines</topic><topic>Coregonus artedi</topic><topic>Freshwater</topic><topic>Hydroacoustics</topic><topic>lake herring</topic><topic>Lake Superior</topic><topic>Osmerus mordax</topic><topic>rainbow smelt</topic><topic>Salvelinus namaycush</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Mason, Doran M.</creatorcontrib><creatorcontrib>Johnson, Timothy B.</creatorcontrib><creatorcontrib>Harvey, Chris J.</creatorcontrib><creatorcontrib>Kitchell, James F.</creatorcontrib><creatorcontrib>Schram, Stephen T.</creatorcontrib><creatorcontrib>Bronte, Charles R.</creatorcontrib><creatorcontrib>Hoff, Michael H.</creatorcontrib><creatorcontrib>Lozano, Steven J.</creatorcontrib><creatorcontrib>Trebitz, Anett S.</creatorcontrib><creatorcontrib>Schreiner, Donald R.</creatorcontrib><creatorcontrib>Conrad Lamon, E.</creatorcontrib><creatorcontrib>Hrabik, Thomas</creatorcontrib><collection>CrossRef</collection><collection>Ecology Abstracts</collection><collection>Water Resources Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 1: Biological Sciences & Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><jtitle>Journal of Great Lakes research</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Mason, Doran M.</au><au>Johnson, Timothy B.</au><au>Harvey, Chris J.</au><au>Kitchell, James F.</au><au>Schram, Stephen T.</au><au>Bronte, Charles R.</au><au>Hoff, Michael H.</au><au>Lozano, Steven J.</au><au>Trebitz, Anett S.</au><au>Schreiner, Donald R.</au><au>Conrad Lamon, E.</au><au>Hrabik, Thomas</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Hydroacoustic Estimates of Abundance and Spatial Distribution of Pelagic Prey Fishes in Western Lake Superior</atitle><jtitle>Journal of Great Lakes research</jtitle><date>2005</date><risdate>2005</risdate><volume>31</volume><issue>4</issue><spage>426</spage><epage>438</epage><pages>426-438</pages><issn>0380-1330</issn><abstract>Lake herring (
Coregonus artedi) and rainbow smelt (
Osmerus mordax) are a valuable prey resource for the recovering lake trout (
Salvelinus namaycush) in Lake Superior. However, prey biomass may be insufficient to support the current predator demand. In August 1997, we assessed the abundance and spatial distribution of pelagic coregonines and rainbow smelt in western Lake Superior by combining a 120 kHz split beam acoustics system with midwater trawls. Coregonines comprised the majority of the midwater trawl catches and the length distributions for trawl caught fish coincided with estimated sizes of acoustic targets. Overall mean pelagic prey fish biomass was 15.56 kg ha
−1 with the greatest fish biomass occurring in the Apostle Islands region (27.98 kg ha
−1), followed by the Duluth Minnesota region (20.22 kg ha
−1), and with the lowest biomass occurring in the open waters of western Lake Superior (9.46 kg ha
−1). Biomass estimates from hydroacoustics were typically 2–134 times greater than estimates derived from spring bottom trawl surveys. Prey fish biomass for Lake Superior is about order of magnitude less than acoustic estimates for Lakes Michigan and Ontario. Discrepancies observed between bioenergetics-based estimates of predator consumption of coregonines and earlier coregonine biomass estimates may be accounted for by our hydroacoustic estimates.</abstract><pub>Elsevier B.V</pub><doi>10.1016/S0380-1330(05)70274-4</doi><tpages>13</tpages></addata></record> |
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| subjects | coregonines Coregonus artedi Freshwater Hydroacoustics lake herring Lake Superior Osmerus mordax rainbow smelt Salvelinus namaycush |
| title | Hydroacoustic Estimates of Abundance and Spatial Distribution of Pelagic Prey Fishes in Western Lake Superior |
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