What does "pound-test" indicate in fishing terms?

"Pound-test" refers to the amount of weight a fishing line can withstand before breaking. This measurement is crucial for anglers as it helps determine the strength of the line, which is essential in ensuring it can handle the size and weight of the fish being targeted. For example, a line rated for 10-pound test can hold up to 10 pounds of weight without breaking, making it vital for choosing the appropriate line for specific fishing conditions and species. This understanding allows anglers to select the right gear to successfully land fish without losing tackle or risking injury to the fish.

The other choices do not accurately describe the significance of "pound-test." While buoyancy is important for certain types of fishing lines, it is not what pound-test measures. Similarly, the color and visibility of the line are not related to its strength or durability, nor does pound-test indicate the type of fish that can be caught, as that depends more on the fishing techniques and bait used rather than the strength of the line alone.