Title

Catch and Effort Cells for the Gippsland Lakes fisheries 

Alternate title

CE_GIPPSLAND_LAKES_1998 

Resource Type

Dataset  

Purpose

The CE_GIPPSLAND_LAKES_1998 layer provides cells on which various summary catch and effort data for the Gippsland Lakes fisheries can be imported, displayed, and analysed. Catch and effort data can be used to display trends in fishing activity. Summary information such as extent of catch, total catch, effort, catch per unit area, and catch per unit effort can be represented. This information is crucial to ensure effective fisheries management, research and monitoring. This data set may be displayed in conjunction with a variety of environmental data capable of providing an insight into the behaviour of the many species caught in the Gippsland Lakes. A depth model, ocean currents, temperature profiles and salinity levels, are useful data that may assist in gaining an understanding into the ecology of these species. 

Supplemental Information

History: 4 Feb 2004 - Creation of original layer and addition of new attributes and attribute values. 2 Mar 2005 - Projection of shapefile into GDA. Relationship to other Datasets: This layer was originally created from a layer of Gippsland Lakes area cells. The shoreline of the lakes is derived from the 1:25,000 Linear Hydrological Features (HYDRO25) layer of the Corporate Geospatial Data Library (CGDL), which is itself derived from Land Victoria's State Digital Map Base topographic layer, converted from Microstation DGN format to ArcInfo format. Current Design Issues: The layer from which this dataset was created was originally designed in accordance with the specifications set out in the Victorian Gippsland Lakes And Lake Tyers Fishing logbook. It was later revised based on feedback received from the Catch And Effort Unit, Department of Primary Industries (DPI), Queenscliff. Related Documents: None CGDL HYDRO25 metadata is available at the address below for DSE/DPI staff only http://sysx/cgi-bin/websql/metadata/dataset_full.hts?name=HYDRO25 

Status

Completed  

Time period

2004-02-042004-02-04 

Spatial representation type

Vector  

Horizontal Accuracy

25m  

Code

4283 

 

Maintenance and update frequency

As needed  

Topic category

• Farming

Use limitation

DataVic 

Classification

Unclassified  

Statement

Dataset Source: Land Victoria - State Digital Map Base. Gippsland Lakes And Lake Tyers Fishing areas Dataset Originality: Derived 

Description

Collection Method: Generated from locations of specific coastline features 

Description

Source description not available 

Description

Source description not available 

Description

The polygons from another coverage of Gippsland Lakes areas were dissolved by their area code to create the dataset. In the new dataset, the region features were dropped, a polygon corresponding to an area no longer fished was deleted, two other attributes were added to the dissolve item and their values were calculated for all of the polygons. This dataset was later converted to a shapefile and projected into the Geocentric Datum of Australia (GDA) 

Classification

Unclassified