{"id":1206265,"name":"biomass_mean_taxa","unit":"","createdAt":"2026-03-05T10:16:20.000Z","updatedAt":"2026-03-05T10:16:20.000Z","coverage":"","timespan":"1970-2018","datasetId":7425,"columnOrder":0,"shortName":"biomass_mean_taxa","catalogPath":"grapher/biodiversity/2020/marine_stocks_by_region_and_taxa__ramlegacy/marine_stocks_by_region_and_taxa__ramlegacy#biomass_mean_taxa","type":"float","datasetName":"Marine stocks by region and taxa (ramlegacy)","datasetVersion":"2020","nonRedistributable":false,"display":{},"schemaVersion":1,"presentation":{},"source":{"id":31128,"name":"RAM Legacy Database; Hilborn,et al. (2020). Effective fisheries management instrumental in improving fish stock status.","dataPublishedBy":"RAM Legacy Stock Assessment Database. 2021. Version 4.495-assessment-only. Retrieved from DOI:10.5281/zenodo.4824192.","dataPublisherSource":"","link":"https://www.ramlegacy.org/","retrievedDate":"2021-09-10","additionalInfo":"This dataset provides aggregated data on fish biomass, fishing pressure and catch by region and taxa, based on the results of the RAM Legacy Stock Assessment Database: https://www.ramlegacy.org/\n\nThis aggregated data was provided by Michael Melnychuk, researcher on the RAM Legacy Database.\n\nThese results were published in PNAS here:\nHilborn, R., Amoroso, R. O., Anderson, C. M., Baum, J. K., Branch, T. A., Costello, C., ... & Ye, Y. (2020). Effective fisheries management instrumental in improving fish stock status. Proceedings of the National Academy of Sciences, 117(4), 2218-2224. Available at: https://www.pnas.org/content/117/4/2218\n\nDefinitions are as follows:\n– 'Biomass' is a measure of biomass of fish divided by the biomass of fish at the maximum sustainable yield (B / Bmsy)\n– 'Fishing pressure' is a measure of fishing pressure divided by the pressure at the maximum sustainable yield (U / Umsy)\n– 'Catch' is a measure of the annual catch divided by the mean catch across the stock's time series"},"dimensions":{"years":{"values":[{"id":1970},{"id":1971},{"id":1972},{"id":1973},{"id":1974},{"id":1975},{"id":1976},{"id":1977},{"id":1978},{"id":1979},{"id":1980},{"id":1981},{"id":1982},{"id":1983},{"id":1984},{"id":1985},{"id":1986},{"id":1987},{"id":1988},{"id":1989},{"id":1990},{"id":1991},{"id":1992},{"id":1993},{"id":1994},{"id":1995},{"id":1996},{"id":1997},{"id":1998},{"id":1999},{"id":2000},{"id":2001},{"id":2002},{"id":2003},{"id":2004},{"id":2005},{"id":2006},{"id":2007},{"id":2008},{"id":2009},{"id":2010},{"id":2011},{"id":2012},{"id":2013},{"id":2014},{"id":2015},{"id":2016},{"id":2017},{"id":2018}]},"entities":{"values":[{"id":227283,"name":"Bivalves and gastropods","code":null},{"id":234182,"name":"Cod and haddock","code":null},{"id":227286,"name":"Crabs and lobsters","code":null},{"id":234183,"name":"Flounder","code":null},{"id":227288,"name":"Forage fish","code":null},{"id":227284,"name":"Mackerels","code":null},{"id":227290,"name":"Other marine fish","code":null},{"id":227291,"name":"Other marine percoidids","code":null},{"id":227292,"name":"Other scorpaenids","code":null},{"id":234184,"name":"Perch and rockfish","code":null},{"id":234181,"name":"Sharks and rays","code":null},{"id":227295,"name":"Shrimps","code":null},{"id":225490,"name":"Tuna","code":null},{"id":227285,"name":"Cephalopods (e.g. octopus, squid)","code":null}]}},"origins":[]}