{"id":"https://openalex.org/W2023765737","doi":"https://doi.org/10.1139/z90-279","title":"Interpopulation variation in male parr maturation of anadromous brown trout (Salmo trutta) in Norway","display_name":"Interpopulation variation in male parr maturation of anadromous brown trout (Salmo trutta) in Norway","publication_year":1990,"publication_date":"1990-09-01","ids":{"openalex":"https://openalex.org/W2023765737","doi":"https://doi.org/10.1139/z90-279","mag":"2023765737"},"language":"en","primary_location":{"id":"doi:10.1139/z90-279","doi":"https://doi.org/10.1139/z90-279","is_oa":false,"landing_page_url":"https://doi.org/10.1139/z90-279","pdf_url":null,"source":{"id":"https://openalex.org/S146329739","display_name":"Canadian Journal of Zoology","issn_l":"0008-4301","issn":["0008-4301","1480-3283"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-b","jufo-1","norway-1","poland-70","russia-white-list-1"],"host_organization":"https://openalex.org/P4310312929","host_organization_name":"Canadian Science Publishing","host_organization_lineage":["https://openalex.org/P4310312929"],"host_organization_lineage_names":["Canadian Science Publishing"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Canadian Journal of Zoology","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/A5027666554","display_name":"Jan Henning L'Ab\u00e9e\u2010Lund","orcid":"https://orcid.org/0000-0002-4647-3490","observed_orcids":["https://orcid.org/0000-0002-4647-3490"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Jan Henning L'Ab\u00e9e-Lund","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5058590024","display_name":"Arne Johan Jensen","orcid":"https://orcid.org/0000-0002-7274-344X","observed_orcids":["https://orcid.org/0000-0002-7274-344X"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Arne Johan Jensen","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"last","author":{"id":"https://openalex.org/A5023797520","display_name":"Bj\u00f8rn Ove Johnsen","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Bj\u00f8rn Ove Johnsen","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":0.4381,"has_fulltext":false,"cited_by_count":47,"citation_normalized_percentile":{"value":0.5473111,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":88,"max":96},"biblio":{"volume":"68","issue":"9","first_page":"1983","last_page":"1987"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11505","display_name":"Reproductive biology and impacts on aquatic species","score":0.47189998626708984,"subfield":{"id":"https://openalex.org/subfields/1314","display_name":"Physiology"},"field":{"id":"https://openalex.org/fields/13","display_name":"Biochemistry, Genetics and Molecular Biology"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},"topics":[{"id":"https://openalex.org/T11505","display_name":"Reproductive biology and impacts on aquatic species","score":0.47189998626708984,"subfield":{"id":"https://openalex.org/subfields/1314","display_name":"Physiology"},"field":{"id":"https://openalex.org/fields/13","display_name":"Biochemistry, Genetics and Molecular Biology"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T10302","display_name":"Fish Ecology and Management Studies","score":0.40549999475479126,"subfield":{"id":"https://openalex.org/subfields/2309","display_name":"Nature and Landscape Conservation"},"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/T10174","display_name":"Animal Behavior and Reproduction","score":0.06120000034570694,"subfield":{"id":"https://openalex.org/subfields/1105","display_name":"Ecology, Evolution, Behavior and Systematics"},"field":{"id":"https://openalex.org/fields/11","display_name":"Agricultural and Biological Sciences"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/brown-trout","display_name":"brown trout","score":0.9890000224113464},{"id":"https://openalex.org/keywords/anadromous-fish","display_name":"anadromous fish","score":0.7490000128746033},{"id":"https://openalex.org/keywords/age-at-maturity","display_name":"age at maturity","score":0.9620000123977661},{"id":"https://openalex.org/keywords/population-differences","display_name":"population differences","score":0.9079999923706055},{"id":"https://openalex.org/keywords/latitudinal-gradient","display_name":"latitudinal gradient","score":0.7850000262260437},{"id":"https://openalex.org/keywords/body-size","display_name":"body size","score":0.5600000023841858},{"id":"https://openalex.org/keywords/effective-population-size","display_name":"effective population size","score":0.9160000085830688},{"id":"https://openalex.org/keywords/norwegian-rivers","display_name":"Norwegian rivers","score":0.5479999780654907}],"concepts":[{"id":"https://openalex.org/C2777940460","wikidata":"https://www.wikidata.org/wiki/Q310436","display_name":"Salmo","level":3,"score":0.9335517287254333},{"id":"https://openalex.org/C2993170677","wikidata":"https://www.wikidata.org/wiki/Q2857311","display_name":"Brown trout","level":4,"score":0.9139722585678101},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.8990697264671326},{"id":"https://openalex.org/C17458331","wikidata":"https://www.wikidata.org/wiki/Q935672","display_name":"Spawn (biology)","level":2,"score":0.879101037979126},{"id":"https://openalex.org/C117773394","wikidata":"https://www.wikidata.org/wiki/Q852569","display_name":"Fish migration","level":3,"score":0.7350566387176514},{"id":"https://openalex.org/C2908647359","wikidata":"https://www.wikidata.org/wiki/Q2625603","display_name":"Population","level":2,"score":0.5549198985099792},{"id":"https://openalex.org/C192536144","wikidata":"https://www.wikidata.org/wiki/Q609370","display_name":"Sexual maturity","level":2,"score":0.5390720963478088},{"id":"https://openalex.org/C63428231","wikidata":"https://www.wikidata.org/wiki/Q9043","display_name":"Norwegian","level":2,"score":0.45370763540267944},{"id":"https://openalex.org/C2779363728","wikidata":"https://www.wikidata.org/wiki/Q2258881","display_name":"Trout","level":3,"score":0.4108227491378784},{"id":"https://openalex.org/C140793950","wikidata":"https://www.wikidata.org/wiki/Q168091","display_name":"Animal science","level":1,"score":0.3821268081665039},{"id":"https://openalex.org/C90856448","wikidata":"https://www.wikidata.org/wiki/Q431","display_name":"Zoology","level":1,"score":0.3392837643623352},{"id":"https://openalex.org/C18903297","wikidata":"https://www.wikidata.org/wiki/Q7150","display_name":"Ecology","level":1,"score":0.32974469661712646},{"id":"https://openalex.org/C505870484","wikidata":"https://www.wikidata.org/wiki/Q180538","display_name":"Fishery","level":1,"score":0.24140992760658264},{"id":"https://openalex.org/C149923435","wikidata":"https://www.wikidata.org/wiki/Q37732","display_name":"Demography","level":1,"score":0.15176427364349365},{"id":"https://openalex.org/C2909208804","wikidata":"https://www.wikidata.org/wiki/Q127282","display_name":"Fish <Actinopterygii>","level":2,"score":0.09703007340431213},{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.0},{"id":"https://openalex.org/C41895202","wikidata":"https://www.wikidata.org/wiki/Q8162","display_name":"Linguistics","level":1,"score":0.0},{"id":"https://openalex.org/C144024400","wikidata":"https://www.wikidata.org/wiki/Q21201","display_name":"Sociology","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1139/z90-279","doi":"https://doi.org/10.1139/z90-279","is_oa":false,"landing_page_url":"https://doi.org/10.1139/z90-279","pdf_url":null,"source":{"id":"https://openalex.org/S146329739","display_name":"Canadian Journal of Zoology","issn_l":"0008-4301","issn":["0008-4301","1480-3283"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-b","jufo-1","norway-1","poland-70","russia-white-list-1"],"host_organization":"https://openalex.org/P4310312929","host_organization_name":"Canadian Science Publishing","host_organization_lineage":["https://openalex.org/P4310312929"],"host_organization_lineage_names":["Canadian Science Publishing"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Canadian Journal of Zoology","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/14","display_name":"Life below water","score":0.7778000235557556}],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W2034189748","https://openalex.org/W1989541399","https://openalex.org/W2074242321","https://openalex.org/W2044858084","https://openalex.org/W2000228742","https://openalex.org/W2106422529","https://openalex.org/W1978546589","https://openalex.org/W2154706276","https://openalex.org/W2053134842","https://openalex.org/W2324234542"],"abstract_inverted_index":{"We":[0],"studied":[1],"male":[2,40,60,86,131],"parr":[3,41,61,87,132],"maturation":[4],"in":[5,9,21,27,100,106,120,126],"anadromous":[6],"brown":[7],"trout":[8],"nine":[10],"Norwegian":[11],"rivers.":[12],"Mean":[13,37],"age":[14,38,94],"at":[15,42],"maturity":[16,43],"increased":[17],"from":[18],"1.5":[19],"years":[20,26],"southern":[22],"populations":[23,101,121],"to":[24,136],"5.2":[25],"northern":[28],"populations,":[29,68],"but":[30],"the":[31,129,137,141,145],"latitudinal":[32],"correlation":[33],"was":[34,44,70],"not":[35],"significant.":[36],"of":[39,51,58,77,84,95,140],"negatively":[45],"correlated":[46,72],"with":[47,73,90,102,122],"mean":[48,74,92],"total":[49,75],"length":[50,76],"0-":[52,78],"and":[53,65,69,79],"1-year-old":[54,80],"parr.":[55,81],"The":[56,82],"proportion":[57,83],"mature":[59,85,130],"varied":[62],"between":[63],"0.06":[64],"0.6":[66],"among":[67],"positively":[71],"decreased":[88],"significantly":[89],"increasing":[91,144],"smolt":[93,111],"males.":[96],"This":[97],"indicates":[98],"that":[99],"relatively":[103,123],"poor":[104],"growth":[105,125],"fresh":[107,127],"water":[108,128],"(i.e.,":[109],"high":[110],"age)":[112],"males":[113],"mainly":[114],"spawn":[115],"as":[116],"sea-run":[117],"migrants,":[118],"whereas":[119],"good":[124],"potentially":[133],"contribute":[134],"twice":[135],"genetic":[138],"makeup":[139],"population,":[142],"further":[143],"effective":[146],"population":[147],"size.":[148]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":3},{"year":2019,"cited_by_count":2},{"year":2017,"cited_by_count":2},{"year":2016,"cited_by_count":1},{"year":2015,"cited_by_count":1},{"year":2014,"cited_by_count":1}],"updated_date":"2026-10-31T12:09:11.096373","created_date":"2016-06-24T00:00:00"}