II.5.1 - RELEASE Button

Identify Release Sites

Release sites are indicated on the river map by small fish outlined in red or green. The locations of these fish are identified in the columbia.desc file. Sites can be added or deleted from the map by adding or deleting the release information from columbia.desc using a text editor.

Three lines are required to define a release site in columbia.desc. For example, the site name Deschutes found at the river position 44 degrees 41 minutes 56 seconds North by 121 degrees 13 minutes 48 seconds West is defined by the lines:

release_site Deschutes

latlon 44 41 56 N 121 13 48 W

end (release)

Open a Release Site Window

Open a release window by:

• right-holding the RELEASE button , and choosing

  add - to open a submenu identifying possible releases, or

  modify - to open a menu of available release sites

  - OR -

• right-clicking a fish on the river map (unless the button has been reassigned with the Map Mouse Tool).

Parameters for individual releases are set in the release site window. Multiple releases can be identified from any site. Releases at a site are identified on the map by green fish. The window to set release parameters is illustrated in Fig. 20.

Fig. 20 Window to Set Release Parameters

The window functions are as follows.

• Release data is controlled with:

  NEW - a site not active in CRiSP.1. When activated a fish symbol designating the site on the river map turns green and fish are released from that point.

  EXISTING - an active site where fish are released

  EXISTING, NOT ACTIVE - appears when changes are made to an existing release.

• Release Start (Julian Day) - determines the first day of a release.
• Smoltification Onset (Julian Day) - determines the Julian day at which fish will begin to migrate. This parameter is used by the migration equation to determine onset of migration.
• Smoltification Done (Julian Day) - determines the Julian day by which all fish in the release will have started migration. This serves to "spread fish out" in a release.
• Release Site - identifies release site. Change this with the menu that pops up when the user right-holds the menu button.
• Species - identifies species of release. Change this with the menu that pops up when the user right-holds the menu button.
• set release counts - a Julian Day Input Tool appears to define number of fish released each day since start of release. Time is relative to Release Start identified with the slider.
• To create a new release left-click

• To delete a release left-click

• To change a release left-click

• To restore values left-click