Hyder, K., Wright, S., Kirby, M., and Brant, J. (2017). The role of citizen science in monitoring small-scale pollution events. *Mar. pollut. Bull.* 120, 51–57. doi: 10.1016/j.marpolbul.2017.04.038

Kelly, R., Fleming, A., Pecl, G. T., von Gönner, J., and Bonn, A. (2020). Citizen science and marine conservation: a global review. *Phil. Trans. R. Soc B* 375, 20190461. doi: 10.1098/rstb.2019.0461

Kerr, J. T., Kharouba, H. M., and Currie, D. J. (2007). The Macroecological contribution to global change solutions. *Science* 316, 1581–1584. doi: 10.1126/science.1133267

Kosmala, M., Wiggins, A., Swanson, A., and Simmons, B. (2016). Assessing data quality in citizen science. *Front. Ecol. Environ.* 14, 551–560. doi: 10.1002/fee.1436

Lang, M. A., Marinelli, R. L., Roberts, S. J., and Taylor, P. R. (2013a). *Research and Discoveries: The Revolution of Science through Scuba* (Washington D.C: Smithsonian Institution Scholarly Press). Available at: https://smithsonian.fishshare.com/ndownloader/files/17602703.

Lang, M. A., Meir, J. U., Streeter, T. L., and Van Hoesen, K. B. (2013b). "Diving physiology and decompression sickness: considerations from humans and marine animals," in *Research and Discoveries: The Revolution of Science through Scuba* (Smithsonian contributions to marine sciences (Washington DC: Smithsonian Institution Scholarly Press), 23–38. Available at: https://repository.si.edu/bitstream/handle/10088/21621/SCMS39_Lang_03.pdf?sequence=1&isAllowed=y.

Lang, M. A., and Smith, G. E. (eds.) (2006). *Proceedings of the Advanced Scientific Diving Workshop*. February 23–24, 2006. Washington DC, Smithsonian Institution. 277p. Available at: https://repository.si.edu/bitstream/handle/10088/2719/proceedings_asdw.pdf.

Link, M. C. (1959). *Sea diver: A quest for history under the sea* (New York: Rinehart & Company, Inc). Available at: https://www.biodiversitylibrary.org/item/55324#page/7.

Lucrezi, S., Egi, S. M., Pieri, M., Burman, F., Ozyigit, T., Cialoni, D., et al. (2018b). Safety priorities and underestimations in recreational scuba diving operations: A european study supporting the implementation of new risk management programmes. *Front. Psychol.* 9. doi: 10.3389/fpsyg.2018.000383

Lucrezi, S., Milanese, M., Palma, M., and Cerrano, C. (2018a). Stirring the strategic direction of scuba diving marine Citizen Science: A survey of active and potential participants. *PloS One* 13, e0202484. doi: 10.1371/journal.pone.0202484

Marlowe, C., Hyder, K., Sayer, M. D. J., and Kaiser, J. (2021). Divers as citizen scientists: response time, accuracy and precision of water temperature measurement using dive computers. *Front. Mar. Sci.* 8. doi: 10.3389/fmars.2021.0617691

Marlowe, C., Hyder, K., Sayer, M. D. J., and Kaiser, J. (2022). Citizen scientists' dive computers resolve seasonal and interannual temperature variations in the Red Sea. *Front. Mar. Sci.* 9. doi: 10.3389/fmars.2022.976771

Metcalfe, A. N., Kennedy, T. A., Mendez, G. A., and Muehlbauer, J. D. (2022). Applied citizen science in freshwater research. *WIREs Water* 9 (2), e1578. doi: 10.1002/wat2.1578

Norro, A. (2016). The closed circuit rebreather (CCR): is it the safest device for deep scientific diving? *Underwater Technol.* 34, 31–38. doi: 10.3723/ut.34.031

Pollock, N. W., Sellers, S. H., and Godfrey, J. M. (2016). "Rebreathers and scientific diving," in *Proceedings of NPS/NOAA/DAN/AAUS, June 16-19, 2015 workshop*. (Catalina Island, CA: Wrigley Marine Science Center), 1–272. Available at: http://www.omao.noaa.gov/sites/default/files/documents/Rebreathers%20and%20Scientific%20Diving%20Proceedings%202016.pdf.

Prato, G., Thiriet, P., Di Franco, A., and Francour, P. (2017). Enhancing fish Underwater Visual Census to move forward assessment of fish assemblages: An application in three Mediterranean Marine Protected Areas. *PloS One* 12, e0178511. doi: 10.1371/journal.pone.0178511

Richardson, K., Asmutis-Silvia, R., Drinkwin, J., Gilardi, K. V. K., Giskes, I., Jones, G., et al. (2019). Building evidence around ghost gear: Global trends and analysis for sustainable solutions at scale. *Mar. pollut. Bull.* 138, 222–229. doi: 10.1016/j.marpolbul.2018.11.031

Roelfsema, C., Thurstan, R., Beger, M., Dudgeon, C., Loder, J., Kovacs, E., et al. (2016). A citizen science approach: A detailed ecological assessment of subtropical reefs at point lookout, Australia. *PloS One* 11, e0163407. doi: 10.1371/journal.pone.0163407

Sayer, M. D. J. (2004). Assessing and managing risk in United Kingdom scientific diving at work operations. *South Pacific Underwater Med. Soc. (SPUMS)* J. 34 (2), 81–88. Available at: https://www.dhmjournal.com/images/IndividArticles/34June/Sayer_dhm.34.2.81-88.pdf.

Sayer, M. D. J. (2006). "Deep scientific diving in Europe: identifying the need," in *Proceedings of the Advanced Scientific Diving Workshop*. Eds. M. A. Lang and G. E. Smith (Washington DC: Smithsonian Institution), pp. 193–202.

Sayer, M. D. J., and Barrington, J. (2005). Trends in scientific diving: an analysis of scientific diving operation record-2004. *Underwater Technol.* 26, 51–55. doi: 10.3723/175605405783101458

Sayer, M. D. J., Fischer, P., and Féral, J.-P. (2008). "Scientific diving in Europe: Integration, representation and promotion," in *Diving for Science 2008 - Proceedings of the American Academy of Underwater Sciences 27th Symposium*. Eds. P. Brueggeman and N. M. Pollock. (Dauphin Island, AL, USA: AAUS), 139–146. doi: 10.5281/zenodo.6407808

Sayer, M. D. J., and Forbes, R. (2007). "The assessment and management of risk in United Kingdom scientific diving at work operations," in *Diving for Science 2006. Proceeding of the American Academy of Underwater Sciences 25th Symposium*. Eds. N. W. Pollock and J. M. Godfrey, (Dauphin Island, AL: AAUS). 2007, 1–23. Available at: http://archive.rubicon-foundation.org/xmlui/handle/123456789/8000.

ScienceDiver. (2018). *Cross-sectoral skills for the blue economy market* (Project id: 863674 - EMFF Blue Economy 2018 - Blue Careers). Thessaloniki, Greece. Available at: https://sciencediver.eu/.

Sellers, S. H. (2016). "An overview of rebreathers in scientific diving 1998-2013," in *Rebreathers and scientific diving 2015. Proceedings of NPS/NOAA/DAN/AAUS Workshop*, 16-19 June 2015. Eds. N. W. Pollock, S. H. Sellers and J. M. Godfrey (eds). (Catalina Island, CA: NPS/NOAA/DAN/AAUS), 5–39.

Sheppard, C., ed.) (2019). "Vol III, Ecological issues and environmental impacts," in *World seas: an environmental evaluation (2nd Edition)*. (London: Academic Press), 650 pp. doi: 10.1016/C2015-0-04336-2

Shirk, J. L., Ballard, H. L., Wilderman, C. C., Phillips, T., Wiggins, A., Jordan, R., et al. (2012). Public participation in scientific research: a framework for deliberate design. *Ecol. Soc.* 17 (2), 29–48. doi: 10.5751/ES-04705-170229

Smith, M. L. (2014). Citizen science in archaeology. *Am. antiq.* 79, 749–762. doi: 10.7183/0002-7316.79.4.749749

Spyksma, A. J. P., Miller, K. I., and Shears, N. T. (2022). Diver-generated photomosaics as a tool for monitoring temperate rocky reef ecosystems. *Front. Mar. Sci.* 9. doi: 10.3389/fmars.2022.953191

Stephenson, R. L., Paul, S., Pastoors, M. A., Kraan, M., Holm, P., Wiber, M., et al. (2016). Integrating fishers' knowledge research in science and management. *ICES J. Mar. Sci.* 73, 1459–1465. doi: 10.1093/icesjms/fsw025

Sturm, U., SChade, S., Ceccaroni, L., Gold, M., Kyba, C., Claramunt, B., et al. (2017). Defining principles for mobile apps and platforms development in citizen science. *RIO 3*, e21283. doi: 10.3897/rio.3.e21283

Tessier, A., Pastor, J., Francour, P., Saragoni, G., Crec'hriou, R., and Lenfant, P. (2013). Video transects as a complement to underwater visual census to study reserve effect on fish assemblages. *Aquat. Biol.* 18, 229–241. doi: 10.3354/ab00506

Tourtas, A., Papadimitriou, K., Karadimou, E., and Schill, R. O. (2020). Diving as a scientist: Training, recognition, occupation - The "ScienceDiver" Project. *IntechOpen*, 12. doi: 10.5772/intechopen.94601

Turicchia, E., Ponti, M., Rossi, G., Milanese, M., Di Camillo, C. G., and Cerrano, C. (2021). The reef check mediterranean underwater coastal environment monitoring protocol. *Front. Mar. Sci.* 8. doi: 10.3389/fmars.2021.620368

Viduka, A. (2020a). Going for the win-win: including the public in underwater cultural heritage management through citizen science in Australia and New Zealand. *Int. J. Nautical Archaeology* 49, 87–106. doi: 10.1111/1095-9270.12412

Viduka, A. (2020b). A maritime archaeological conservation citizen science programme for individual benefit and good public outcomes: GIRT Scientific Divers. *J. Community Archaeology Heritage* 9, 71–87. doi: 10.1080/20518196.2020.1858544

Viduka, A., and Edney, J. (2022). GIRT scientific divers citizen science programme: Volunteer motivations and characteristics. *J. Community Archaeology Heritage* 9, 143–160. doi: 10.1080/20518196.2021.2005411

Webb, T., Tyler, E., and Somerfield, P. (2009). Life history mediates large-scale population ecology in marine benthic taxa. *Mar. Ecol. Prog. Ser.* 396, 293–306. doi: 10.3354/meps08253

Westphal, A. M., Breiter, C.-J. C., Falconer, S., Saffar, N., Ashraf, A. B., McCall, A. G., et al. (2022). Citizen science and machine learning: Interdisciplinary approach to non-invasively monitoring a northern marine ecosystem. *Front. Mar. Sci.* 9. doi: 10.3389/fmars.2022.961095

Wright, S., Hull, T., Sivyer, D. B., Pearce, D., Pinnegar, J. K., Sayer, M. D. J., et al. (2016). SCUBA divers as oceanographic samplers: The potential of dive computers to augment aquatic temperature monitoring. *Sci. Rep.* 6, 30164. doi: 10.1038/srep30164

Young, M. A. L., Foale, S., and Bellwood, D. R. (2015). Dynamic catch trends in the history of recreational spearingfish in Australia. *Conserv. Biol.* 29, 784–794. doi: 10.1111/cobi.12456
Hyder, K., Wright, S., Kirby, M., and Brant, J. (2017). The role of citizen science in monitoring small-scale pollution events. *Mar. pollut. Bull.* 120, 51–57. doi: 10.1016/j.marpolbul.2017.04.038

Kelly, R., Fleming, A., Pecl, G. T., von Gönner, J., and Bonn, A. (2020). Citizen science and marine conservation: a global review. *Phil. Trans. R. Soc B* 375, 20190461. doi: 10.1098/rstb.2019.0461

Kerr, J. T., Kharouba, H. M., and Currie, D. J. (2007). The Macroecological contribution to global change solutions. *Science* 316, 1581–1584. doi: 10.1126/science.1133267

Kosmala, M., Wiggins, A., Swanson, A., and Simmons, B. (2016). Assessing data quality in citizen science. *Front. Ecol. Environ.* 14, 551–560. doi: 10.1002/fee.1436

Lang, M. A., Marinelli, R. L., Roberts, S. J., and Taylor, P. R. (2013a). *Research and Discoveries: The Revolution of Science through Scuba* (Washington D.C: Smithsonian Institution Scholarly Press). Available at: https://smithsonian.fishshare.com/ndownloader/files/17602703.

Lang, M. A., Meir, J. U., Streeter, T. L., and Van Hoesen, K. B. (2013b). "Diving physiology and decompression sickness: considerations from humans and marine animals," in *Research and Discoveries: The Revolution of Science through Scuba* (Smithsonian contributions to marine sciences (Washington DC: Smithsonian Institution Scholarly Press), 23–38. Available at: https://repository.si.edu/bitstream/handle/10088/21621/SCMS39_Lang_03.pdf?sequence=1&isAllowed=y.

Lang, M. A., and Smith, G. E. (eds.) (2006). *Proceedings of the Advanced Scientific Diving Workshop*. February 23–24, 2006. Washington DC, Smithsonian Institution. 277p. Available at: https://repository.si.edu/bitstream/handle/10088/2719/proceedings_asdw.pdf.

Link, M. C. (1959). *Sea diver: A quest for history under the sea* (New York: Rinehart & Company, Inc). Available at: https://www.biodiversitylibrary.org/item/55324#page/7.

Lucrezi, S., Egi, S. M., Pieri, M., Burman, F., Ozyigit, T., Cialoni, D., et al. (2018b). Safety priorities and underestimations in recreational scuba diving operations: A european study supporting the implementation of new risk management programmes. *Front. Psychol.* 9. doi: 10.3389/fpsyg.2018.000383

Lucrezi, S., Milanese, M., Palma, M., and Cerrano, C. (2018a). Stirring the strategic direction of scuba diving marine Citizen Science: A survey of active and potential participants. *PloS One* 13, e0202484. doi: 10.1371/journal.pone.0202484

Marlowe, C., Hyder, K., Sayer, M. D. J., and Kaiser, J. (2021). Divers as citizen scientists: response time, accuracy and precision of water temperature measurement using dive computers. *Front. Mar. Sci.* 8. doi: 10.3389/fmars.2021.0617691

Marlowe, C., Hyder, K., Sayer, M. D. J., and Kaiser, J. (2022). Citizen scientists' dive computers resolve seasonal and interannual temperature variations in the Red Sea. *Front. Mar. Sci.* 9. doi: 10.3389/fmars.2022.976771

Metcalfe, A. N., Kennedy, T. A., Mendez, G. A., and Muehlbauer, J. D. (2022). Applied citizen science in freshwater research. *WIREs Water* 9 (2), e1578. doi: 10.1002/wat2.1578

Norro, A. (2016). The closed circuit rebreather (CCR): is it the safest device for deep scientific diving? *Underwater Technol.* 34, 31–38. doi: 10.3723/ut.34.031

Pollock, N. W., Sellers, S. H., and Godfrey, J. M. (2016). "Rebreathers and scientific diving," in *Proceedings of NPS/NOAA/DAN/AAUS, June 16-19, 2015 workshop*. (Catalina Island, CA: Wrigley Marine Science Center), 1–272. Available at: http://www.omao.noaa.gov/sites/default/files/documents/Rebreathers%20and%20Scientific%20Diving%20Proceedings%202016.pdf.

Prato, G., Thiriet, P., Di Franco, A., and Francour, P. (2017). Enhancing fish Underwater Visual Census to move forward assessment of fish assemblages: An application in three Mediterranean Marine Protected Areas. *PloS One* 12, e0178511. doi: 10.1371/journal.pone.0178511

Richardson, K., Asmutis-Silvia, R., Drinkwin, J., Gilardi, K. V. K., Giskes, I., Jones, G., et al. (2019). Building evidence around ghost gear: Global trends and analysis for sustainable solutions at scale. *Mar. pollut. Bull.* 138, 222–229. doi: 10.1016/j.marpolbul.2018.11.031

Roelfsema, C., Thurstan, R., Beger, M., Dudgeon, C., Loder, J., Kovacs, E., et al. (2016). A citizen science approach: A detailed ecological assessment of subtropical reefs at point lookout, Australia. *PloS One* 11, e0163407. doi: 10.1371/journal.pone.0163407

Sayer, M. D. J. (2004). Assessing and managing risk in United Kingdom scientific diving at work operations. *South Pacific Underwater Med. Soc. (SPUMS) J.* 34 (2), 81–88. Available at: https://www.dhmjournal.com/images/IndividArticles/34June/Sayer_dhm.34.2.81-88.pdf.

Sayer, M. D. J. (2006). "Deep scientific diving in Europe: identifying the need," in *Proceedings of the Advanced Scientific Diving Workshop*. Eds. M. A. Lang and G. E. Smith (Washington DC: Smithsonian Institution), pp. 193–202.

Sayer, M. D. J., and Barrington, J. (2005). Trends in scientific diving: an analysis of scientific diving operation record-2004. *Underwater Technol.* 26, 51–55. doi: 10.3723/175605405783101458

Sayer, M. D. J., Fischer, P., and Féral, J.-P. (2008). "Scientific diving in Europe: Integration, representation and promotion," in *Diving for Science 2008 - Proceedings of the American Academy of Underwater Sciences 27th Symposium*. Eds. P. Brueggeman and N. M. Pollock. (Dauphin Island, AL, USA: AAUS), 139–146. doi: 10.5281/zenodo.6407808

Sayer, M. D. J., and Forbes, R. (2007). "The assessment and management of risk in United Kingdom scientific diving at work operations," in *Diving for Science 2006. Proceeding of the American Academy of Underwater Sciences 25th Symposium*. Eds. N. W. Pollock and J. M. Godfrey, (Dauphin Island, AL: AAUS). 2007, 1–23. Available at: http://archive.rubicon-foundation.org/xmlui/handle/123456789/8000.

ScienceDiver. (2018). *Cross-sectoral skills for the blue economy market* (Project id: 863674 - EMFF Blue Economy 2018 - Blue Careers). Thessaloniki, Greece. Available at: https://sciencediver.eu/.

Sellers, S. H. (2016). "An overview of rebreathers in scientific diving 1998-2013," in *Rebreathers and scientific diving 2015. Proceedings of NPS/NOAA/DAN/AAUS Workshop*, 16-19 June 2015. Eds. N. W. Pollock, S. H. Sellers and J. M. Godfrey (eds). (Catalina Island, CA: NPS/NOAA/DAN/AAUS), 5–39.

Sheppard, C., ed.) (2019). "Vol III, Ecological issues and environmental impacts," in *World seas: an environmental evaluation (2nd Edition)*. (London: Academic Press), 650 pp. doi: 10.1016/C2015-0-04336-2

Shirk, J. L., Ballard, H. L., Wilderman, C. C., Phillips, T., Wiggins, A., Jordan, R., et al. (2012). Public participation in scientific research: a framework for deliberate design. *Ecol. Soc.* 17 (2), 29–48. doi: 10.5751/ES-04705-170229

Smith, M. L. (2014). Citizen science in archaeology. *Am. antiq.* 79, 749–762. doi: 10.7183/0002-7316.79.4.749749

Spyksma, A. J. P., Miller, K. I., and Shears, N. T. (2022). Diver-generated photomosaics as a tool for monitoring temperate rocky reef ecosystems. *Front. Mar. Sci.* 9. doi: 10.3389/fmars.2022.953191

Stephenson, R. L., Paul, S., Pastoors, M. A., Kraan, M., Holm, P., Wiber, M., et al. (2016). Integrating fishers' knowledge research in science and management. *ICES J. Mar. Sci.* 73, 1459–1465. doi: 10.1093/icesjms/fsw025

Sturm, U., SChade, S., Ceccaroni, L., Gold, M., Kyba, C., Claramunt, B., et al. (2017). Defining principles for mobile apps and platforms development in citizen science. *RIO 3*, e21283. doi: 10.3897/rio.3.e21283

Tessier, A., Pastor, J., Francour, P., Saragoni, G., Crec'hriou, R., and Lenfant, P. (2013). Video transects as a complement to underwater visual census to study reserve effect on fish assemblages. *Aquat. Biol.* 18, 229–241. doi: 10.3354/ab00506

Tourtas, A., Papadimitriou, K., Karadimou, E., and Schill, R. O. (2020). Diving as a scientist: Training, recognition, occupation - The "ScienceDiver" Project. *IntechOpen*, 12. doi: 10.5772/intechopen.94601

Turicchia, E., Ponti, M., Rossi, G., Milanese, M., Di Camillo, C. G., and Cerrano, C. (2021). The reef check mediterranean underwater coastal environment monitoring protocol. *Front. Mar. Sci.* 8. doi: 10.3389/fmars.2021.620368

Viduka, A. (2020a). Going for the win-win: including the public in underwater cultural heritage management through citizen science in Australia and New Zealand. *Int. J. Nautical Archaeology* 49, 87–106. doi: 10.1111/1095-9270.12412

Viduka, A. (2020b). A maritime archaeological conservation citizen science programme for individual benefit and good public outcomes: GIRT Scientific Divers. *J. Community Archaeology Heritage* 9, 71–87. doi: 10.1080/20518196.2020.1858544

Viduka, A., and Edney, J. (2022). GIRT scientific divers citizen science programme: Volunteer motivations and characteristics. *J. Community Archaeology Heritage* 9, 143–160. doi: 10.1080/20518196.2021.2005411

Webb, T., Tyler, E., and Somerfield, P. (2009). Life history mediates large-scale population ecology in marine benthic taxa. *Mar. Ecol. Prog. Ser.* 396, 293–306. doi: 10.3354/meps08253

Westphal, A. M., Breiter, C.-J. C., Falconer, S., Saffar, N., Ashraf, A. B., McCall, A. G., et al. (2022). Citizen science and machine learning: Interdisciplinary approach to non-invasively monitoring a northern marine ecosystem. *Front. Mar. Sci.* 9. doi: 10.3389/fmars.2022.961095

Wright, S., Hull, T., Sivyer, D. B., Pearce, D., Pinnegar, J. K., Sayer, M. D. J., et al. (2016). SCUBA divers as oceanographic samplers: The potential of dive computers to augment aquatic temperature monitoring. *Sci. Rep.* 6, 30164. doi: 10.1038/srep30164

Young, M. A. L., Foale, S., and Bellwood, D. R. (2015). Dynamic catch trends in the history of recreational spearingfish in Australia. *Conserv. Biol.* 29, 784–794. doi: 10.1111/cobi.12456