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Long-term Herring data collected at Seili island, from 1984 onwards Citation Mäkinen, K.; Olli, L.; Hänninen, J.; Archipelago Research Institute; (2018) Long-term Herring data collected at Seili island, from 1984 onwards. https://marineinfo.org/id/dataset/6085 Contact: Mäkinen, Katja Availability: The data can be made available upon request, please use contact information. Description This dataset contains herring monitoring projects that have been carried out in the Archipelago Sea area, and especially at the vicinity of the City of Turku, where one of the major herring reproductive areas is situated. The data are based on field sampling of the spawning fish, and direct monitoring of the spawning beds by scuba diving. During this three-decade biological survey, the environmental conditions of the spawning area have changed considerably, e.g due to eutrophication and decreasing salinity of the Baltic Sea. The monitoring campaigns started in 1984 fishin with a trawlor a trapnet and measurements of the fish length (cm), weight (g), sex, age, gonad stage (I-VII), gonad weight (g), mesentric fat (1-4), muscle lipid content (%), fatty acid composition (%), stomach content and ovary fat content (%) were taken. Scope Themes: Biology > Fish Keywords: Marine/Coastal, Clupeoid fisheries, Data, Marine Genomics, ANE, Baltic Geographical coverage ANE, Baltic [Marine Regions] Temporal coverage From 1984 on [In Progress] Parameters Age Fatty acids Fish length Lipids Sex Stomach content Contributor University of Turku; Archipelago Research Institute (ARI), more Dataset status: In Progress Data type: Data Data origin: Monitoring: field survey Metadatarecord created: 2018-11-09 Information last updated: 2018-11-09 | ||||
