Figure 3a (left). Whole embedded otolith of a 39 cm age 16+ Atlantic mackerel collected in August with a truncated rostrum that is unsuitable for age interpretation.

Figure 3b (center). Posterior part of the otolith showing 16 clear annuli and a narrow opaque edge.

Figure 3c (right). Subrostrum showing 16 clear annuli and a narrow opaque edge.

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