{"id":"https://openalex.org/W1983125115","doi":"https://doi.org/10.13031/2013.13226","title":"DEVELOPMENT AND APPLICATION OF A LOTIC ECOSYSTEM TROPHIC STATUS INDEX","display_name":"DEVELOPMENT AND APPLICATION OF A LOTIC ECOSYSTEM TROPHIC STATUS INDEX","publication_year":1999,"publication_date":"1999-01-01","ids":{"openalex":"https://openalex.org/W1983125115","doi":"https://doi.org/10.13031/2013.13226","mag":"1983125115"},"language":"en","primary_location":{"id":"doi:10.13031/2013.13226","doi":"https://doi.org/10.13031/2013.13226","is_oa":false,"landing_page_url":"https://doi.org/10.13031/2013.13226","pdf_url":null,"source":{"id":"https://openalex.org/S4210169753","display_name":"Transactions of the ASAE","issn_l":"0001-2351","issn":["0001-2351","2151-0059"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core"],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Transactions of the ASAE","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5055850957","display_name":"Marty D. Matlock","orcid":"https://orcid.org/0000-0003-0176-3969","observed_orcids":["https://orcid.org/0000-0003-0176-3969"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"M. D. Matlock","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5112631954","display_name":"Dan E. Storm","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"D. E. Storm","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5113700326","display_name":"Michael D. Smolen","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"M. D. Smolen","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5031493908","display_name":"M. E. Matlock","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"M. E. Matlock","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5110406273","display_name":"Anne M. S. McFarland","orcid":"https://orcid.org/0009-0000-9909-2117","observed_orcids":["https://orcid.org/0009-0000-9909-2117"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"A. M. S. McFarland","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"last","author":{"id":"https://openalex.org/A5084570395","display_name":"Larry M. Hauck","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"L. M. Hauck","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":16,"citation_normalized_percentile":{"value":0.15396619,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":87,"max":97},"biblio":{"volume":"42","issue":"3","first_page":"651","last_page":"656"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10236","display_name":"Aquatic Ecosystems and Phytoplankton Dynamics","score":0.5630000233650208,"subfield":{"id":"https://openalex.org/subfields/2304","display_name":"Environmental Chemistry"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10236","display_name":"Aquatic Ecosystems and Phytoplankton Dynamics","score":0.5630000233650208,"subfield":{"id":"https://openalex.org/subfields/2304","display_name":"Environmental Chemistry"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11311","display_name":"Soil and Water Nutrient Dynamics","score":0.40310001373291016,"subfield":{"id":"https://openalex.org/subfields/2304","display_name":"Environmental Chemistry"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10669","display_name":"Freshwater macroinvertebrate diversity and ecology","score":0.023600000888109207,"subfield":{"id":"https://openalex.org/subfields/2303","display_name":"Ecology"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/trophic-state-index","display_name":"trophic state index","score":0.9049999713897705},{"id":"https://openalex.org/keywords/lotic-ecosystems","display_name":"lotic ecosystems","score":0.9570000171661377},{"id":"https://openalex.org/keywords/streams","display_name":"streams","score":0.6899999976158142},{"id":"https://openalex.org/keywords/nutrient-limitation","display_name":"nutrient limitation","score":0.8799999952316284},{"id":"https://openalex.org/keywords/nitrogen-limitation","display_name":"nitrogen limitation","score":0.8619999885559082},{"id":"https://openalex.org/keywords/phosphorus-limitation","display_name":"phosphorus limitation","score":1.0},{"id":"https://openalex.org/keywords/periphyton","display_name":"periphyton","score":0.7039999961853027},{"id":"https://openalex.org/keywords/primary-productivity","display_name":"primary productivity","score":0.6790000200271606},{"id":"https://openalex.org/keywords/co-limitation","display_name":"co-limitation","score":0.871999979019165}],"concepts":[{"id":"https://openalex.org/C129934472","wikidata":"https://www.wikidata.org/wiki/Q3578576","display_name":"River ecosystem","level":3,"score":0.9421067237854004},{"id":"https://openalex.org/C72958200","wikidata":"https://www.wikidata.org/wiki/Q1053008","display_name":"Trophic level","level":2,"score":0.7594821453094482},{"id":"https://openalex.org/C39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","level":0,"score":0.6673970818519592},{"id":"https://openalex.org/C142796444","wikidata":"https://www.wikidata.org/wiki/Q181394","display_name":"Nutrient","level":2,"score":0.6598060131072998},{"id":"https://openalex.org/C110872660","wikidata":"https://www.wikidata.org/wiki/Q37813","display_name":"Ecosystem","level":2,"score":0.6018202900886536},{"id":"https://openalex.org/C510538283","wikidata":"https://www.wikidata.org/wiki/Q674","display_name":"Phosphorus","level":2,"score":0.600793719291687},{"id":"https://openalex.org/C59167565","wikidata":"https://www.wikidata.org/wiki/Q1858004","display_name":"Periphyton","level":3,"score":0.5736634731292725},{"id":"https://openalex.org/C204983608","wikidata":"https://www.wikidata.org/wiki/Q2111958","display_name":"Productivity","level":2,"score":0.5660077333450317},{"id":"https://openalex.org/C18903297","wikidata":"https://www.wikidata.org/wiki/Q7150","display_name":"Ecology","level":1,"score":0.5171929597854614},{"id":"https://openalex.org/C42090638","wikidata":"https://www.wikidata.org/wiki/Q4048907","display_name":"STREAMS","level":2,"score":0.5122825503349304},{"id":"https://openalex.org/C42088612","wikidata":"https://www.wikidata.org/wiki/Q3229532","display_name":"Lake ecosystem","level":3,"score":0.4860432744026184},{"id":"https://openalex.org/C152913119","wikidata":"https://www.wikidata.org/wiki/Q30599066","display_name":"Trophic state index","level":4,"score":0.4685412645339966},{"id":"https://openalex.org/C537208039","wikidata":"https://www.wikidata.org/wiki/Q627","display_name":"Nitrogen","level":2,"score":0.4132928252220154},{"id":"https://openalex.org/C76886044","wikidata":"https://www.wikidata.org/wiki/Q2883300","display_name":"Hydrology (agriculture)","level":2,"score":0.3887154757976532},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.18705973029136658},{"id":"https://openalex.org/C186699998","wikidata":"https://www.wikidata.org/wiki/Q156698","display_name":"Eutrophication","level":3,"score":0.17153677344322205},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.16118350625038147},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.06498709321022034},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.061797648668289185},{"id":"https://openalex.org/C139719470","wikidata":"https://www.wikidata.org/wiki/Q39680","display_name":"Macroeconomics","level":1,"score":0.0},{"id":"https://openalex.org/C187320778","wikidata":"https://www.wikidata.org/wiki/Q1349130","display_name":"Geotechnical engineering","level":1,"score":0.0},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.0},{"id":"https://openalex.org/C178790620","wikidata":"https://www.wikidata.org/wiki/Q11351","display_name":"Organic chemistry","level":1,"score":0.0},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.13031/2013.13226","doi":"https://doi.org/10.13031/2013.13226","is_oa":false,"landing_page_url":"https://doi.org/10.13031/2013.13226","pdf_url":null,"source":{"id":"https://openalex.org/S4210169753","display_name":"Transactions of the ASAE","issn_l":"0001-2351","issn":["0001-2351","2151-0059"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core"],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Transactions of the ASAE","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/6","score":0.7778000235557556,"display_name":"Clean water and sanitation"}],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W2080316759","https://openalex.org/W1992008819","https://openalex.org/W2290528063","https://openalex.org/W1827916496","https://openalex.org/W2072474475","https://openalex.org/W2057188307","https://openalex.org/W3208742885","https://openalex.org/W7011419805","https://openalex.org/W4292444056","https://openalex.org/W2249327096"],"abstract_inverted_index":{"We":[0,78],"used":[1,41],"the":[2,22,36,68,87,107,137,146,157],"Matlock":[3,37],"Periphytometer":[4,38],"(Matlock":[5],"et":[6],"al.,":[7],"1998)":[8],"to":[9,56,66,93,116],"measure":[10],"in":[11,21,26,54,142,145],"situ":[12],"nutrient":[13,57,143],"limitations":[14,144],"and":[15,49,60,97,125,148],"trophicstatus":[16],"at":[17,154],"five":[18],"stream":[19,158],"sites":[20],"Bosque":[23],"River":[24],"Watershed":[25],"north-central":[27],"Texas":[28],"during":[29],"July":[30],"1997.":[31],"Periphytic":[32],"chlorophyll":[33],"aproduction":[34],"from":[35],"was":[39],"also":[40],"as":[42,106],"an":[43],"indicator":[44],"of":[45,70,89,109,151,156],"baseline":[46,90],"primary":[47,51,91],"productivity":[48,52,92],"ofmaximum":[50],"(MPP)":[53],"response":[55],"enrichment":[58],"(nitrogen":[59],"phosphorus).":[61],"The":[62,118],"measured":[63],"MPPwas":[64],"interpreted":[65],"represent":[67],"rate":[69],"periphytic":[71],"growth":[72,115],"when":[73],"nutrients":[74],"are":[75],"not":[76],"limiting.":[77],"developed":[79],"a":[80,103,122,128],"lotic":[81,132],"ecosystemtrophic":[82],"status":[83],"index":[84],"(LETSI)":[85],"using":[86,102],"ratio":[88,108],"MPP.":[94,117],"Nitrogen":[95],"(N)":[96],"phosphorus":[98],"(P)limitations":[99],"were":[100],"evaluated":[101],"modified":[104],"LETSI":[105,119],"either":[110],"N":[111],"or":[112],"P":[113],"enriched":[114],"is":[120],"bydefinition":[121],"functional":[123],"index,":[124],"may":[126],"provide":[127],"classification":[129],"tool":[130],"for":[131],"ecosystem":[133],"trophic":[134],"status.":[135],"Using":[136],"LETSIindices,":[138],"we":[139],"observed":[140],"differences":[141],"streams":[147],"detected":[149],"co-limitations":[150],"nitrogen":[152],"andphosphorus":[153],"two":[155],"sites.":[159]},"counts_by_year":[{"year":2021,"cited_by_count":1},{"year":2013,"cited_by_count":1},{"year":2012,"cited_by_count":3}],"updated_date":"2026-10-12T09:40:04.860316","created_date":"2016-06-24T00:00:00"}