standardization of records keeping in indian zoos - Central Zoo ...
standardization of records keeping in indian zoos - Central Zoo ...
standardization of records keeping in indian zoos - Central Zoo ...
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Picture 38<br />
Advantages <strong>of</strong> VIE tags<br />
• High retention rates<br />
• May be applied to very small fish and other animals<br />
• M<strong>in</strong>imal impact on fish survival, growth and behavior<br />
• Low capital and material costs make it viable for small-scale projects<br />
• Fast to apply<br />
• Tags detected visually <strong>in</strong> ambient light<br />
• Detection can be further enhanced with appropriate illum<strong>in</strong>ation<br />
• Well-established technique with extensive literature on successful applications <strong>in</strong><br />
hundreds <strong>of</strong> species <strong>of</strong> fish, amphibians, crustaceans and other animals<br />
• Tags may not be noticed and reported by casual observers<br />
Limitations <strong>of</strong> VIE tags<br />
• Limited cod<strong>in</strong>g capacity (but use <strong>of</strong> several colors, several body locations, and<br />
possibly more than one tag allows a greater cod<strong>in</strong>g capacity to be developed)<br />
• Tags may become difficult to detect <strong>in</strong> ambient light if growth is considerable and<br />
pigmented tissue is laid down over the tag, though it can usually be detected us<strong>in</strong>g the<br />
VI light<br />
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