Fishery characteristics of whitefish (Coregonus lavaretus L.) and zander (Sander lucioperca L.) in Vygozero Reservoir (White Sea catchment area)

The Vygozero Reservoir has the status of a reservoir republican subordination, and fishing there is carried out mainly by fishermen Segezha region Republic Karelia. contributes 3-7% to total volume fish catch in Karelia occupies 5–6 place terms among 12 reservoirs In this regard, problem monitoring populations valuable commercial species urgent at present stage. First all, zander whitefish are with TAC (total allowable catch) Reservoir. There given results works within framework state projects economic contractual topics North Research Institute Fishery under Petrozavodsk State University, Northern Water Problems Karelian Centre Russian Academy Sciences for assessing stock production (Vygozero-Onda) Whitefish should be taken into operation from age 5+, 7+ older. performed calculations size based on data 2005–2020 allow today up 3 tons, or 20.8% amount (with maximum norm 23.4%), 18 17.7% (norm = 18.6%). As result studies, recommendations were made rational use