Assertion (A) is true: A trammel net is a passive entangling gear designed specifically to entangle fish by their fins, opercula, spines, and teeth, or pocket them into netting pouches. Reason (R) is false: By definition, a trammel net consists of THREE parallel walls of netting hung on the same floatline and sinkerline—two outer walls of wide mesh (lintels/armor) sandwiching a central, loosely hung middle net of small mesh (lint). A net with two layers is a semi-trammel net, not a standard trammel net.

Option analysis:

• Both true: Incorrect because (R) is false (trammel nets have three layers, not two).
• Both true: Incorrect because (R) is false.
• is true but (R) is false: Correct assessment.
• is false: Incorrect because (A) is true.