{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/105813"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/105813","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"The population dynamics of shortnose gar in the Illinois River to inform management of an emerging recreational fishery","abstract":"Understanding the impact of recreational harvest is crucial for the effective management of ecologically and economically important fisheries. The extent of participation in and magnitude of harvest from bowfishing is largely unknown; however, this lethal angling method may be the primary source of fishing mortality for some native species. Among the “rough” fishes bow anglers target, gars (Lepisosteidae) may be at greater risk of overharvest because of their periodic life history strategies. In my first study, I utilized standardized population assessments to estimate the relative abundance, stock structure and vital rates of Shortnose Gar (Lepisosteus platostomus) in the lower Illinois River. The findings indicate that Shortnose Gar exhibit slow growth rates, large body size, variable recruitment and long life spans characteristic of a periodic life history strategy. In my second study, I utilized a creel survey of Illinois bowfishing tournaments to characterize bow angler fishing habits and harvest with an emphasis on gars. Although invasive carp species (Cyprinidae) dominate the harvest composition, gar populations may be vulnerable to overharvest as bow anglers favor targeting them and selectively harvest large individuals. Together these studies provide the necessary information to develop management strategies that promote sustainable gar fisheries and provide quality recreational opportunities to anglers.","abstract_html":"Understanding the impact of recreational harvest is crucial for the effective management of ecologically and economically important fisheries. The extent of participation in and magnitude of harvest from bowfishing is largely unknown; however, this lethal angling method may be the primary source of fishing mortality for some native species. Among the “rough” fishes bow anglers target, gars (Lepisosteidae) may be at greater risk of overharvest because of their periodic life history strategies. In my first study, I utilized standardized population assessments to estimate the relative abundance, stock structure and vital rates of Shortnose Gar (Lepisosteus platostomus) in the lower Illinois River. The findings indicate that Shortnose Gar exhibit slow growth rates, large body size, variable recruitment and long life spans characteristic of a periodic life history strategy. In my second study, I utilized a creel survey of Illinois bowfishing tournaments to characterize bow angler fishing habits and harvest with an emphasis on gars. Although invasive carp species (Cyprinidae) dominate the harvest composition, gar populations may be vulnerable to overharvest as bow anglers favor targeting them and selectively harvest large individuals. Together these studies provide the necessary information to develop management strategies that promote sustainable gar fisheries and provide quality recreational opportunities to anglers.","abstract_has_math":false,"creators":["Molinaro, Sarah"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"M.S.","degree_level":"Thesis","degree_discipline":"Natural Res & Env Sciences","degree_department":null,"school":null,"contributors":["Stein, Jeffrey A","Suski, Cory","Casper, Andrew"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2019,"date_issued":"2019-11-26T20:49:27Z","date_published":"2019-11-26T20:49:27Z","updated_at":"2026-07-22T22:24:45Z","subjects":["fisheries","management","harvest","gar","bowfish","angling","tournament","recreation"],"languages":["en"],"rights":["Copyright 2019 Sarah Molinaro"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/2142/105813","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Stein, Jeffrey A","Suski, Cory","Casper, Andrew"]},{"key":"dc:creator","label":"Author","values":["Molinaro, Sarah"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2019-11-26T20:49:27Z","2021-11-27T10:15:09Z","2019-07-15","2019-08"]},{"key":"dc:type","label":"Dc Type","values":["text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Natural Res & Env Sciences"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Thesis"]},{"key":"thesis:degree_name","label":"Degree Name","values":["M.S."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois at Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["fisheries","management","harvest","gar","bowfish","angling","tournament","recreation"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 2019 Sarah Molinaro"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/2142/105813"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Understanding the impact of recreational harvest is crucial for the effective management of ecologically and economically important fisheries. The extent of participation in and magnitude of harvest from bowfishing is largely unknown; however, this lethal angling method may be the primary source of fishing mortality for some native species. Among the “rough” fishes bow anglers target, gars (Lepisosteidae) may be at greater risk of overharvest because of their periodic life history strategies. In my first study, I utilized standardized population assessments to estimate the relative abundance, stock structure and vital rates of Shortnose Gar (Lepisosteus platostomus) in the lower Illinois River. The findings indicate that Shortnose Gar exhibit slow growth rates, large body size, variable recruitment and long life spans characteristic of a periodic life history strategy. In my second study, I utilized a creel survey of Illinois bowfishing tournaments to characterize bow angler fishing habits and harvest with an emphasis on gars. Although invasive carp species (Cyprinidae) dominate the harvest composition, gar populations may be vulnerable to overharvest as bow anglers favor targeting them and selectively harvest large individuals. Together these studies provide the necessary information to develop management strategies that promote sustainable gar fisheries and provide quality recreational opportunities to anglers.","Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2021-08-01","The student, Sarah Molinaro, accepted the attached license on 2019-07-11 at 14:56.","The student, Sarah Molinaro, submitted this Thesis for approval on 2019-07-11 at 15:07.","This Thesis was approved for publication on 2019-07-15 at 14:39.","DSpace SAF Submission Ingestion Package generated from Vireo submission #14275 on 2019-11-26 at 13:05:27","Made available in DSpace on 2019-11-26T20:49:27Z (GMT). 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The extent of participation in and magnitude of harvest from bowfishing is largely unknown; however, this lethal angling method may be the primary source of fishing mortality for some native species. Among the “rough” fishes bow anglers target, gars (Lepisosteidae) may be at greater risk of overharvest because of their periodic life history strategies. In my first study, I utilized standardized population assessments to estimate the relative abundance, stock structure and vital rates of Shortnose Gar (Lepisosteus platostomus) in the lower Illinois River. The findings indicate that Shortnose Gar exhibit slow growth rates, large body size, variable recruitment and long life spans characteristic of a periodic life history strategy. In my second study, I utilized a creel survey of Illinois bowfishing tournaments to characterize bow angler fishing habits and harvest with an emphasis on gars. Although invasive carp species (Cyprinidae) dominate the harvest composition, gar populations may be vulnerable to overharvest as bow anglers favor targeting them and selectively harvest large individuals. Together these studies provide the necessary information to develop management strategies that promote sustainable gar fisheries and provide quality recreational opportunities to anglers.","Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2021-08-01","The student, Sarah Molinaro, accepted the attached license on 2019-07-11 at 14:56.","The student, Sarah Molinaro, submitted this Thesis for approval on 2019-07-11 at 15:07.","This Thesis was approved for publication on 2019-07-15 at 14:39.","DSpace SAF Submission Ingestion Package generated from Vireo submission #14275 on 2019-11-26 at 13:05:27","Made available in DSpace on 2019-11-26T20:49:27Z (GMT). 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