{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,30]],"date-time":"2026-09-30T20:57:06Z","timestamp":1790801826723,"version":"4.1.0"},"reference-count":17,"publisher":"Oxford University Press (OUP)","issue":"1","license":[{"start":{"date-parts":[[2024,5,11]],"date-time":"2024-05-11T00:00:00Z","timestamp":1715385600000},"content-version":"vor","delay-in-days":131,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2024,1,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:p>This paper describes an optocoupler-based regulation apparatus for saturation manipulation of oxygen in water (OptoReg). This system enables control of solenoid valves for oxygen and nitrogen gases using a FireSting-O2 meter, an optocoupler box and an electronic switch box. The hardware components connect to a computer through Universal Serial Bus (USB) cables. The control software is free and has a graphical user interface, making it easy to use. With the OptoReg system, any lab with a computer running Microsoft Windows operating system and a 4-channel FireSting-O2 meter can easily and cheaply set up four independently controlled systems for regulating water oxygen levels. Here, we describe how to assemble and run the OptoReg system and present a data set demonstrating the high precision and stability of the OptoReg system during static acclimation experiments and dynamic warming trials.<\/jats:p>","DOI":"10.1093\/conphys\/coae024","type":"journal-article","created":{"date-parts":[[2024,5,11]],"date-time":"2024-05-11T10:15:56Z","timestamp":1715422556000},"source":"Crossref","is-referenced-by-count":8,"title":["The OptoReg system: a simple and inexpensive solution for regulating water oxygen"],"prefix":"10.1093","volume":"12","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4202-476X","authenticated-orcid":false,"given":"Rasmus","family":"Ern","sequence":"first","affiliation":[{"name":"Norwegian University of Science and Technology Department of Biology, , H\u00f8gskoleringen 5, 7034 Trondheim, Norway"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9838-3991","authenticated-orcid":false,"given":"Fredrik","family":"Jutfelt","sequence":"additional","affiliation":[{"name":"Norwegian University of Science and Technology Department of Biology, , H\u00f8gskoleringen 5, 7034 Trondheim, Norway"},{"name":"University of Gothenburg Department of Biology and Environmental Sciences, , Medicinaregatan 7B, 413 90 Gothenburg, Sweden"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"286","published-online":{"date-parts":[[2024,5,11]]},"reference":[{"key":"2024052406310289800_ref1","doi-asserted-by":"crossref","first-page":"245","DOI":"10.1007\/BF00005481","article-title":"Evaluation of the critical thermal maximum for determining thermal tolerance of freshwater fish","volume":"4","author":"Becker","year":"1979","journal-title":"Environ Biol Fishes"},{"key":"2024052406310289800_ref2","doi-asserted-by":"crossref","first-page":"eaam7240","DOI":"10.1126\/science.aam7240","article-title":"Declining oxygen in the global ocean and coastal waters","volume":"359","author":"Breitburg","year":"2018","journal-title":"Science"},{"key":"2024052406310289800_ref3","doi-asserted-by":"crossref","first-page":"99","DOI":"10.1093\/icb\/11.1.99","article-title":"Energetic responses of salmon to temperatures. 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