Biological Sampling
HOW TO MEASURE THE FISH
- Measure the fish: UF for tuna species, and both LF and EF for swordfish. Note the EF in the comments section of the form. If for any reason you cannot measure the LF, explain this in the comments section.
- For tuna species make sure that you only sample 5 fish for the size range concerned.
HOW TO USE THE CABLE TIE LABELS
1. Place the cable tie with 5 labels through the mouth of the fish
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2. Once it is attached, gently pull on it to ensure it will hold. If the ololiths are extracted at port you should leave the cable tie on the fish
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3. Remove the labels from the cabel tie and place them inside the plastic bag with the biological samples.
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4. Cut the orange part (with the number) from the tie and place it with the otoliths inside the vial
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Each fish has 1 cable tie with several identically numbered labels. All the samples coming from one fish must have the same label number! Note this label number on the biological sampling form
Each fish has 1 cable tie with several identically numbered labels. All the samples coming from one fish must have the same label number! Note this label number on the biological sampling form
HOW TO SAMPLE BLOOD
- When the fish is killed, while it is bleeding, place the vial under the blood dripping from the fish. Try to fill the whole vial ( a minimum of 10ml is required).
- Before closing the vial, place a label between the vial and the lid - while screwing the lid, the label will be secured by the pressure of the lid against the vial. Gently pull on the labels to ensure it will hold. Store the vial in a freezer
More information
Do you want to know more about Biological Sampling? Click on the download button to download the Biological Sampling pamphlet to find out;
- How to extract the otoliths from tuna
- First dorsal spine sampling
- How to collect other internal biological samples
- How to sample a SWORDFISH
- How to collect anal fin rays from swordfish
- What to do after sampling a fish?
- What to do before arrival to port?