{"created":"2024-11-25T07:48:06.780338+00:00","id":2000706,"links":{},"metadata":{"_buckets":{"deposit":"b83ce725-c1ff-49f4-8b96-cd8c8ba15ad3"},"_deposit":{"created_by":33,"id":"2000706","owner":"33","owners":[33],"pid":{"revision_id":0,"type":"depid","value":"2000706"},"status":"published"},"_oai":{"id":"oai:oist.repo.nii.ac.jp:02000706","sets":["7:1707111347047"]},"author_link":[],"control_number":"2000706","item_10006_creator_3":{"attribute_name":"著者(英)","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Izumiyama, Michael","creatorNameLang":"en"}]}]},"item_10006_date_granted_11":{"attribute_name":"Degree Conferral Date","attribute_value_mlt":[{"subitem_dategranted":"2024-10-31"}]},"item_10006_degree_grantor_9":{"attribute_name":"Degree Conferrral Institution","attribute_value_mlt":[{"subitem_degreegrantor":[{"subitem_degreegrantor_name":"Okinawa Institute of Science and Technology Graduate University"}],"subitem_degreegrantor_identifier":[{"subitem_degreegrantor_identifier_name":"38005","subitem_degreegrantor_identifier_scheme":"kakenhi"}]}]},"item_10006_degree_name_8":{"attribute_name":"Degree","attribute_value_mlt":[{"subitem_degreename":"Doctor of Philosophy"}]},"item_10006_description_7":{"attribute_name":"Abstract","attribute_value_mlt":[{"subitem_description":"Understanding how fishes will respond to future ocean conditions under environmental changes can help us better understand the future of fish populations. Sites such as CO2 seeps act as natural analogues of the future ocean and can be used to understand the effects of ocean acidification (OA) on marine organisms. Examining fishes present at Natural analogues offer the opportunity to understand how they may be able to adapt to this environment. Our study used two natural analogues, a semi-enclosed bay in Bouraké, New Caledonia, and a CO2 seep off Shikine Island, Japan, to examine how the fishes found at these sites survive in this environment simulating an end-of-century scenario of OA. We examine the effects of OA on three levels: the community, the individuals, and the population. First, we examined how fish assemblages differed between the natural analogue and a nearby comparison site in Bouraké, New Caledonia. We used environmental DNA metabarcoding and underwater visual surveys to assess the fish assemblages at the two sites. Our study found that some species, such as gobies may be more tolerant of the multiple environmental stressors found in Bouraké compared to wrasses and parrotfish (Labriformes), which may be more sensitive to the effects of environmental change. Next, we examined the individual response to OA by sequencing the transcriptome of the brain and gill from the neon damselfish (Pomacentrus coelestis) at the CO2 seep off Shikine Island and a nearby control reef across two seasons to examine the genetic mechanism for adaptation. Our study found genes associated with acid-base regulation, O2 transportation, and immune responses were differentially expressed in response to conditions of OA found at the seep, supporting previous work examining the molecular mechanisms of adaptation OA in fishes. Finally, we examined the presence of selection for adaptation to OA at the CO2 seep off Shikine Island by collecting DNA from 135 P. coelestis across the island and examining genome-wide single-nucleotide polymorphism. We found potential genes under selection at the CO2 seep, suggesting selection for adaptation to OA. Our study shed light on the various effects of environmental change on fishes at natural analogues and the potential response of fishes to OA. However, there may also be adverse effects of OA, which warrant further investigation and highlight the importance of natural analogues to study how fishes respond to environmental changes.","subitem_description_language":"en","subitem_description_type":"Abstract"}]},"item_10006_dissertation_number_12":{"attribute_name":"Degree Referral Number","attribute_value_mlt":[{"subitem_dissertationnumber":"甲第169号"}]},"item_10006_identifier_registration":{"attribute_name":"ID登録","attribute_value_mlt":[{"subitem_identifier_reg_text":"10.15102/0002000706","subitem_identifier_reg_type":"JaLC"}]},"item_10006_rights_13":{"attribute_name":"Copyright Information","attribute_value_mlt":[{"subitem_rights":"© 2024 The Author."}]},"item_10006_text_24":{"attribute_name":"Exam Date","attribute_value_mlt":[{"subitem_text_value":"2024-09-10"}]},"item_10006_version_type_18":{"attribute_name":"Version Format","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_1731043371613":{"attribute_name":"","attribute_value_mlt":[{"subitem_start_page":"1"}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"open access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_abf2"}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2025-11-03"}],"filename":"IzumiyamaMichaelFulltext.pdf","filesize":[{"value":"3.3 MB"}],"format":"application/pdf","mimetype":"application/pdf","url":{"objectType":"other","url":"https://oist.repo.nii.ac.jp/record/2000706/files/IzumiyamaMichaelFulltext.pdf"},"version_id":"67140503-bb3d-4870-8c75-2d9bb7cec68f"},{"accessrole":"open_access","date":[{"dateType":"Available","dateValue":"2024-11-25"}],"filename":"IzumiyamaMichaelExamAbstract.pdf","filesize":[{"value":"48 KB"}],"format":"application/pdf","mimetype":"application/pdf","url":{"objectType":"abstract","url":"https://oist.repo.nii.ac.jp/record/2000706/files/IzumiyamaMichaelExamAbstract.pdf"},"version_id":"64e7177a-ecb1-42f2-9c94-e6840e3767e2"},{"accessrole":"open_access","date":[{"dateType":"Available","dateValue":"2024-12-19"}],"filename":"IzumiyamaMichaelsummary.pdf","filesize":[{"value":"88 KB"}],"format":"application/pdf","mimetype":"application/pdf","url":{"objectType":"summary","url":"https://oist.repo.nii.ac.jp/record/2000706/files/IzumiyamaMichaelsummary.pdf"},"version_id":"6ceec0e6-b4df-426d-96a5-26a528ba7ffc"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"Marine Biology | Ocean Acidification  | Climate Change  | Fish Ecology and Biology  | Genomics  | Natural Analogues","subitem_subject_scheme":"Other"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"doctoral thesis","resourceuri":"http://purl.org/coar/resource_type/c_db06"}]},"item_title":"気候変動による海産魚類の適応能力を見極めるため、未来の海を模した海洋環境を探る","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"気候変動による海産魚類の適応能力を見極めるため、未来の海を模した海洋環境を探る","subitem_title_language":"ja"},{"subitem_title":"Using Natural Analogues of the Future Ocean to Study the Adaptive Potential of Fish Communities to Environmental Change","subitem_title_language":"en"}]},"item_type_id":"10006","owner":"33","path":["1707111347047"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2024-11-25"},"publish_date":"2024-11-25","publish_status":"0","recid":"2000706","relation_version_is_last":true,"title":["気候変動による海産魚類の適応能力を見極めるため、未来の海を模した海洋環境を探る"],"weko_creator_id":"33","weko_shared_id":-1},"updated":"2024-12-23T06:02:14.567605+00:00"}