Skip to main content
Advanced Search

Filters: Tags: Fishery (X)

3 results (24ms)   

View Results as: JSON ATOM CSV
thumbnail
The Long Term Resource Monitoring (LTRM) annual fish monitoring began on the Upper Mississippi and Illinois Rivers in 1989. During the first two years samples were collected at a series of fixed sampling sites, then in 1993 a stratified random sampling approach was added to the collection effort. This approach utilizes a computer routine that randomly selects sampling sites from a pool of potential sites that have been categorized by strata (e.g., aquatic habitat type, distance to shore, connectivity to main channel). The results from these collections are stored in an Oracle database at the Upper Midwest Environmental Science Center (UMESC). UMESC provides free access to the data through the Centers Web site (www.umesc.usgs.gov)....
The data release includes part of the bottom-trawl and gill-net survey data collected between 1952 and 1962 from the research vessel R/V Cisco. The bottom-trawl dataset includes tables for fishing operations and effort (BT_OP.csv), fish catch (BT_Catch.csv), and individual length-weight-sex-maturity (LWSM) records (BT_Fish.csv) for only a subset of species (details below). The gill-net dataset includes tables for fishing operations (GN_OP.csv), fishing effort (GN_Effort.csv), fish catch (GN_Catch.csv), and individual LWSM records (GN_Fish.csv) for only a subset of species (details below). Two reference tables, BT_Spec.csv and Species.csv, are used for bottom trawl specifications and fish species names, respectively....
thumbnail
The Sardine catch and presence grid dataset has been assembled directly from the Pelagics Data Unit -Sardine harvest log database located at the Pacific Biological Station (PBS). The dataset has been modified to meet the sensitive nature of the data as per the Access to Information Act20(1)(b,c); which specifies that Fisheries and Oceans Canada will not disclose to a third party confidential information that may prejudice the competitive position of the fisher; in which fishing location has been identified as one of the entities to be protected. There was a 4km x 4km grid used in the desensitization process as well information was limited to total estimated Catch (metric tonnes). The dataset is comprised of an aggregate...


    map background search result map search result map bcmca_hu_commercialFish_Sardines_Catch_data LTRM Fisheries Data - Stratified Random and Fixed Site Sampling Bottom-trawl and gill-net data from the Upper Great Lakes, collected by R/V Cisco, 1952–1962 LTRM Fisheries Data - Stratified Random and Fixed Site Sampling bcmca_hu_commercialFish_Sardines_Catch_data Bottom-trawl and gill-net data from the Upper Great Lakes, collected by R/V Cisco, 1952–1962