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307LCRB IV Dungeness Crab Shell Hardness
695.00
Test Dungeness Crab Shell Hardness
Developed with the Alaska Dept. of Fish and Game, this durometer accurately measures the indentation hardness of the Dungeness crab shell.
This durometer can be used to determine if a population of crabs has matured enough such that the soft-shelled population is small enough to warrant a fishery.
- Used by Fish and Game to Enforce Fishing Regulations.
- Used by Marine Biologists for Crab Fisheries research.
- Accurately measures shell hardness
- Magnetic Max Hand
- NIST Traceable Certification Available
Technical Data PDF
Add A2LA/NIST Certification for $110.00
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307HF Snow Crab Shell Hardness
665.00
Test Snow Crabs As Soft or Hard
This durometer was developed to help the Canadian Department of Fisheries and Oceans to limit the percentage of soft shell snow crabs in a fisherman's catch. By checking the hardness of
the claw. Recently molted (soft) crabs with low meat yield can be avoided.
- Used by Fish and Game to Enforce Fishing Regulations.
- Used by Marine Biologists for Crab Fisheries research.
- Accurately measures shell hardness
- Magnetic Max Hand
- NIST Traceable Certification Available
Technical Data PDF
Add A2LA/NIST Certification for $110.00
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307LOB Lobster Shell Hardness
700.00
Test Lobster Shell Hardness
This durometer has a force curve similar to the Model 307HF, but with a longer base extension. It is normally used to measure the portion of the carapace which is the slowest to re-harden.
This hardness reading is then used as a guide to determine molt stages.
- Used by Fish and Game to Enforce Fishing Regulations.
- Used by Marine Biologists for Crab Fisheries research.
- Accurately measures shell hardness
- Magnetic Max Hand
- NIST Traceable Certification Available
Technical Data PDF
Add A2LA/NIST Certification for $110.00
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