{"id":"https://openalex.org/W10465361","doi":null,"title":"Distribution and biology of the Skipjack tuna Katsuwonus pelamis (Linnaeus) taken by the longline fishery in the Indian Ocean","display_name":"Distribution and biology of the Skipjack tuna Katsuwonus pelamis (Linnaeus) taken by the longline fishery in the Indian Ocean","publication_year":1979,"publication_date":"1979-01-01","ids":{"openalex":"https://openalex.org/W10465361","mag":"10465361"},"language":"en","primary_location":{"id":"pmh:oai:eprints.cmfri.org.in:1505","doi":null,"is_oa":true,"landing_page_url":"http://eprints.cmfri.org.in/1505/1/Pillai_147-170.pdf","pdf_url":"http://eprints.cmfri.org.in/1505/1/Pillai_147-170.pdf","source":{"id":"https://openalex.org/S4306402395","display_name":"Eprints@CMFRI Open Access Institutional Repository (Central Marine Fisheries Research Institute)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I899802","host_organization_name":"Central Marine Fisheries Research Institute","host_organization_lineage":["https://openalex.org/I899802"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":[],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"http://eprints.cmfri.org.in/1505/1/Pillai_147-170.pdf","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5109564322","display_name":"P P Pillai","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"P P Pillai","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"last","author":{"id":"https://openalex.org/A5109394262","display_name":"E G Silas","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"E G Silas","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":true,"cited_by_count":5,"citation_normalized_percentile":{"value":0.00093284,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":87,"max":93},"biblio":{"volume":null,"issue":null,"first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10230","display_name":"Marine and fisheries research","score":0.9976000189781189,"subfield":{"id":"https://openalex.org/subfields/1104","display_name":"Aquatic Science"},"field":{"id":"https://openalex.org/fields/11","display_name":"Agricultural and Biological Sciences"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},"topics":[{"id":"https://openalex.org/T10230","display_name":"Marine and fisheries research","score":0.9976000189781189,"subfield":{"id":"https://openalex.org/subfields/1104","display_name":"Aquatic Science"},"field":{"id":"https://openalex.org/fields/11","display_name":"Agricultural and Biological Sciences"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T12319","display_name":"Fish Biology and Ecology Studies","score":0.0017999999690800905,"subfield":{"id":"https://openalex.org/subfields/1104","display_name":"Aquatic Science"},"field":{"id":"https://openalex.org/fields/11","display_name":"Agricultural and Biological Sciences"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T11387","display_name":"Ichthyology and Marine Biology","score":0.00019999999494757503,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/skipjack-tuna","display_name":"skipjack tuna","score":1.0},{"id":"https://openalex.org/keywords/longline-fisheries","display_name":"longline fisheries","score":0.9070000052452087},{"id":"https://openalex.org/keywords/species-distribution","display_name":"species distribution","score":0.7049999833106995},{"id":"https://openalex.org/keywords/abundance","display_name":"abundance","score":0.859000027179718},{"id":"https://openalex.org/keywords/length-composition","display_name":"length composition","score":0.7739999890327454},{"id":"https://openalex.org/keywords/spawning","display_name":"spawning","score":0.6880000233650208},{"id":"https://openalex.org/keywords/seasonal-variation","display_name":"seasonal variation","score":0.8690000176429749},{"id":"https://openalex.org/keywords/indian-ocean","display_name":"Indian Ocean","score":0.8100000023841858},{"id":"https://openalex.org/keywords/western-indian-ocean","display_name":"Western Indian Ocean","score":0.7110000252723694},{"id":"https://openalex.org/keywords/eastern-indian-ocean","display_name":"eastern Indian Ocean","score":0.7480000257492065},{"id":"https://openalex.org/keywords/tuna-biology","display_name":"tuna biology","score":0.3330000042915344}],"concepts":[{"id":"https://openalex.org/C2779991348","wikidata":"https://www.wikidata.org/wiki/Q633957","display_name":"Skipjack tuna","level":4,"score":0.9782399535179138},{"id":"https://openalex.org/C505870484","wikidata":"https://www.wikidata.org/wiki/Q180538","display_name":"Fishery","level":1,"score":0.7392481565475464},{"id":"https://openalex.org/C2780532849","wikidata":"https://www.wikidata.org/wiki/Q6146274","display_name":"Tuna","level":3,"score":0.7227296233177185},{"id":"https://openalex.org/C2985189572","wikidata":"https://www.wikidata.org/wiki/Q1239","display_name":"Indian ocean","level":2,"score":0.5921058654785156},{"id":"https://openalex.org/C111368507","wikidata":"https://www.wikidata.org/wiki/Q43518","display_name":"Oceanography","level":1,"score":0.5483947992324829},{"id":"https://openalex.org/C205649164","wikidata":"https://www.wikidata.org/wiki/Q1071","display_name":"Geography","level":0,"score":0.4809283912181854},{"id":"https://openalex.org/C134097258","wikidata":"https://www.wikidata.org/wiki/Q1507383","display_name":"Sea surface temperature","level":2,"score":0.46535995602607727},{"id":"https://openalex.org/C77077793","wikidata":"https://www.wikidata.org/wiki/Q336019","display_name":"Abundance (ecology)","level":2,"score":0.4608122706413269},{"id":"https://openalex.org/C2778539297","wikidata":"https://www.wikidata.org/wiki/Q215185","display_name":"Scombridae","level":4,"score":0.444038987159729},{"id":"https://openalex.org/C2984876570","wikidata":"https://www.wikidata.org/wiki/Q98","display_name":"Pacific ocean","level":2,"score":0.4420102834701538},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.33751776814460754},{"id":"https://openalex.org/C2909208804","wikidata":"https://www.wikidata.org/wiki/Q127282","display_name":"Fish <Actinopterygii>","level":2,"score":0.24931767582893372},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.07567048072814941}],"mesh":[],"locations_count":2,"locations":[{"id":"pmh:oai:eprints.cmfri.org.in:1505","doi":null,"is_oa":true,"landing_page_url":"http://eprints.cmfri.org.in/1505/1/Pillai_147-170.pdf","pdf_url":"http://eprints.cmfri.org.in/1505/1/Pillai_147-170.pdf","source":{"id":"https://openalex.org/S4306402395","display_name":"Eprints@CMFRI Open Access Institutional Repository (Central Marine Fisheries Research Institute)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I899802","host_organization_name":"Central Marine Fisheries Research Institute","host_organization_lineage":["https://openalex.org/I899802"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Article"},{"id":"mag:10465361","doi":null,"is_oa":false,"landing_page_url":"http://eprints.cmfri.org.in/1505/","pdf_url":null,"source":null,"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":null}],"best_oa_location":{"id":"pmh:oai:eprints.cmfri.org.in:1505","doi":null,"is_oa":true,"landing_page_url":"http://eprints.cmfri.org.in/1505/1/Pillai_147-170.pdf","pdf_url":"http://eprints.cmfri.org.in/1505/1/Pillai_147-170.pdf","source":{"id":"https://openalex.org/S4306402395","display_name":"Eprints@CMFRI Open Access Institutional Repository (Central Marine Fisheries Research Institute)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I899802","host_organization_name":"Central Marine Fisheries Research Institute","host_organization_lineage":["https://openalex.org/I899802"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Article"},"sustainable_development_goals":[{"display_name":"Life below water","id":"https://metadata.un.org/sdg/14","score":1.0}],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W10465361.pdf","grobid_xml":"https://content.openalex.org/works/W10465361.grobid-xml"},"referenced_works_count":4,"referenced_works":["https://openalex.org/W64106688","https://openalex.org/W127697139","https://openalex.org/W650740222","https://openalex.org/W2218366891"],"related_works":["https://openalex.org/W7144693051","https://openalex.org/W93146702","https://openalex.org/W2797157922","https://openalex.org/W4404958241","https://openalex.org/W7051293127","https://openalex.org/W6660125","https://openalex.org/W2304136557","https://openalex.org/W2265089161","https://openalex.org/W161236139","https://openalex.org/W2552472814"],"abstract_inverted_index":{"The":[0,43,142],"skipjack":[1,58],"tuna":[2],"Katsuwonus":[3],"pelamis":[4],"remains":[5],"to":[6],"be":[7],"one":[8,185],"of":[9,14,57,72,104,144],"the":[10,19,29,39,61,69,88,93,97,107,112,122,145,151,156,160,166,175,192],"least":[11],"exploited":[12],"species":[13],"commercially":[15],"important":[16],"tunas":[17],"in":[18,38,87,96,106,111,121,135,191],"Indian":[20,90,99,164,196],"Ocean.":[21],"At":[22],"present":[23,44],"they":[24,33,83,117,138],"are":[25],"taken":[26],"mainly":[27],"by":[28,68],"surface":[30],"fishery":[31],"and":[32,55,64,75,101,110,114,128,162,186,194],"form":[34],"a":[35],"minor":[36],"component":[37],"long":[40],"line":[41],"catches.":[42],"communication":[45],"provides":[46],"information":[47,173],"on":[48,60,174],"their":[49],"distribution,":[50],"availability,":[51],"abundance,":[52],"length":[53],"composition":[54],"spawning":[56,180],"based":[59],"catch":[62],"statistics":[63],"biological":[65],"data":[66],"obtained":[67],"longline":[70,152],"operations":[71],"Japanese":[73],"commercial":[74],"research":[76],"vessels.":[77],"Relative":[78],"density":[79,130],"indices":[80,177],"show":[81],"that":[82,179],"were":[84,118,131,169],"widely":[85,119],"distributed":[86,120],"western":[89],"Ocean":[91,100,197],"during":[92,199],"first":[94],"quarter,":[95],"eastern":[98,163],"northwest":[102],"coast":[103],"Australia":[105],"second":[108],"quarter":[109],"third":[113],"fourth":[115],"quarters":[116],"tropical":[123],"waters.":[124],"Their":[125],"overall":[126],"abundance":[127],"average":[129],"at":[132],"its":[133],"peak":[134],"June,":[136],"although":[137],"evinced":[139],"seasonal":[140],"variation.":[141],"fishes":[143],"size":[146],"\\ngroup":[147],"58-70":[148],"cm":[149],"dominated":[150],"catches,":[153],"especially":[154],"from":[155],"northern":[157,193],"sector.":[158],"In":[159],"central":[161,195],"Ocean,":[165],"specimens":[167],"examined":[168],"relatively":[170,189],"smaller.":[171],"Available":[172],"gonad":[176],"reveals":[178],"activity":[181],"is":[182,188],"an":[183],"extended":[184],"it":[187],"high":[190],"areas":[198],"September":[200],"through":[201],"April.":[202]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2021,"cited_by_count":1},{"year":2020,"cited_by_count":1},{"year":2012,"cited_by_count":1}],"updated_date":"2026-10-02T10:15:12.560889","created_date":"2016-06-24T00:00:00"}