Fisheries Data and Information
As part of a commitment to open government and to enhance understanding of fish stocks, Economic Development, Investment, Trade and Natural Resources is taking steps to share data on lake fisheries. The department collects index net data on a variety of lakes across the Province which is used to assess the state of fish stocks and inform decision making on management of our fisheries.
The Department’s most commonly requested fisheries data sets are now available online and updated on an annual basis. The data provided includes raw index netting data in an Excel spreadsheet format. This data is being provided for personal use only. The republication of this data or its use in whole or in part in any published work, is subject to the prior permission of Manitoba Economic Development, Investment, Trade and Natural Resources. Please contact fish@gov.mb.ca to request permission to utilize this data for published work.
Fisheries assessment reports are also included when available. Please select from the lake list below to access available information. Additional data sets and assessment reports will be added as they become available.
Lake Winnipeg
Index Netting Data
Since 1979, annual index netting has been undertaken on Lake Winnipeg. Fishery-independent index netting data is utilized to assess the state of the Lake Winnipeg multi-use fishery and informs government decision making on the management of this fishery. As with many long-term datasets, there have been changes in collection methodology and analyses over time, including changes in the method of fish age determination, the composition and length of index net gangs, and the location of index netting sites. These are important considerations for any analysis of index netting data. In order to avoid erroneous interpretation of the data in the absence of important methodological background, researchers are advised to contact Department staff directly prior to analysis or to seek permission to use this data in publications by emailing fish@gov.mb.ca.
Assessment Reports
Lake Manitoba
Index Netting Data
Index netting data is collected on Lake Manitoba annually. Fishery-independent index netting data is utilized to assess the state of the Lake Manitoba multi-use fishery and informs government decision making on the management of this fishery. As with many long-term datasets, there have been changes in collection methodology and analyses over time. Raw data from 2009 is available in Excel format below. Some data may not be available for certain sample sites as they were not assessable due to low water levels in some years. Researchers are advised to contact department staff for methodological background prior to data analysis or to seek permission to use this data in publications by emailing fish@gov.mb.ca .
