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Figure 1.
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| Figure 2. |
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| Figure 3. |
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| Figure 4 |
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| 1. |
Fish are rated on their condition, excellent, good, and poor.
Only the fish in excellent and good conditions are tagged.
- Excellent condition where they are lively, have clean
scale condition, and are relatively unscathed.
- Good condtion where they look healthy but may have scale
abrasion or net marks.
- Poor condition where there are heavy abrasions, the body
is soft, and it appears the chance of survival is low.
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| 2. |
The fish is sexed by candling the
fish. The ventral area of the blind side is examined. A female
will have a darkened oranged colored triangle (the ovary) that
extends into the abdomen and points towards the tail of the
fish (figure 1). Males, will not have this and the area will
look uniform in color (figure 2). |
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| 3. |
The length of the fish is measured (figure 3). |
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| 4. |
The lateral line arch is located
on the blind side of the fish. A blank tag is threaded onto
the pin. The pin is then inserted through the fish, at a right
angle with the fish, just above the middle of the arch (figure
4). |
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| 5. |
A numbered tag is threaded onto the the pin on
the top of the fish (figure 5). |
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| 6. |
With pliers the top of the pin is
trimmed so there is 1" of the pin left to crimp (figure
6). |
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| 7. |
The pin is crimped, leaving a 3-4
mm gap between the tag and the fish. This gap is to allow room
for the fish to grow (figure 7). |
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| 8. |
The fish is released.
Click here to read a copy of the Tagging
and Data Collection Protocol.
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| Figure 5. |
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| Figure 6. |
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| Figure 7. |
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